test: add missing return types in tests

So that PHPStan complain less :)

tests/AutoloadTest.php

@@ -19,7 +19,7 @@ class AutoloadTest extends TestCase
     }
 
     // Autoload a class
-    public function testAutoload()
+    public function testAutoload(): void
     {
         $this->app->register('user', User::class);
 
@@ -33,7 +33,7 @@ class AutoloadTest extends TestCase
     }
 
     // Check autoload failure
-    public function testMissingClass()
+    public function testMissingClass(): void
     {
         $test = null;
         $this->app->register('test', 'NonExistentClass');

tests/CollectionTest.php

@@ -17,39 +17,39 @@ class CollectionTest extends TestCase
     }
 
     // Get an item
-    public function testGet()
+    public function testGet(): void
     {
         $this->assertEquals(1, $this->collection->a);
     }
 
     // Set an item
-    public function testSet()
+    public function testSet(): void
     {
         $this->collection->c = 3;
         $this->assertEquals(3, $this->collection->c);
     }
 
     // Check if an item exists
-    public function testExists()
+    public function testExists(): void
     {
         $this->assertTrue(isset($this->collection->a));
     }
 
     // Unset an item
-    public function testUnset()
+    public function testUnset(): void
     {
         unset($this->collection->a);
         $this->assertFalse(isset($this->collection->a));
     }
 
     // Count items
-    public function testCount()
+    public function testCount(): void
     {
         $this->assertEquals(2, count($this->collection));
     }
 
     // Iterate through items
-    public function testIterate()
+    public function testIterate(): void
     {
         $items = [];
         foreach ($this->collection as $key => $value) {
@@ -59,24 +59,24 @@ class CollectionTest extends TestCase
         $this->assertEquals(['a' => 1, 'b' => 2], $items);
     }
 
-    public function testJsonSerialize()
+    public function testJsonSerialize(): void
     {
         $this->assertEquals(['a' => 1, 'b' => 2], $this->collection->jsonSerialize());
     }
 
-    public function testOffsetSetWithNullOffset()
+    public function testOffsetSetWithNullOffset(): void
     {
         $this->collection->offsetSet(null, 3);
         $this->assertEquals(3, $this->collection->offsetGet(0));
     }
 
-    public function testOffsetExists()
+    public function testOffsetExists(): void
     {
         $this->collection->a = 1;
         $this->assertTrue($this->collection->offsetExists('a'));
     }
 
-    public function testOffsetUnset()
+    public function testOffsetUnset(): void
     {
         $this->collection->a = 1;
         $this->assertTrue($this->collection->offsetExists('a'));
@@ -84,14 +84,14 @@ class CollectionTest extends TestCase
         $this->assertFalse($this->collection->offsetExists('a'));
     }
 
-    public function testKeys()
+    public function testKeys(): void
     {
         $this->collection->a = 1;
         $this->collection->b = 2;
         $this->assertEquals(['a', 'b'], $this->collection->keys());
     }
 
-    public function testClear()
+    public function testClear(): void
     {
         $this->collection->a = 1;
         $this->collection->b = 2;

tests/DispatcherTest.php

@@ -331,7 +331,7 @@ class DispatcherTest extends TestCase
         $result = $this->dispatcher->execute([ContainerDefault::class, 'testTheContainer']);
     }
 
-    public function testContainerDicePdoWrapperTestBadParams()
+    public function testContainerDicePdoWrapperTestBadParams(): void
     {
         $dice = new \Dice\Dice();
         $this->dispatcher->setContainerHandler(function ($class, $params) use ($dice) {

tests/DocExamplesTest.php

@@ -27,7 +27,7 @@ class DocExamplesTest extends TestCase
         Flight::clear();
     }
 
-    public function testMapNotFoundMethod()
+    public function testMapNotFoundMethod(): void
     {
         Flight::map('notFound', function () {
             Flight::json([], 404);
@@ -45,7 +45,7 @@ class DocExamplesTest extends TestCase
         $this->assertEquals('[]', Flight::response()->getBody());
     }
 
-    public function testMapNotFoundMethodV2OutputBuffering()
+    public function testMapNotFoundMethodV2OutputBuffering(): void
     {
         Flight::map('notFound', function () {
             Flight::json([], 404);
@@ -64,7 +64,7 @@ class DocExamplesTest extends TestCase
         $this->assertEquals('[]', Flight::response()->getBody());
     }
 
-    public function testMapErrorMethod()
+    public function testMapErrorMethod(): void
     {
         Flight::map('error', function (Throwable $error) {
             // Handle error
@@ -75,7 +75,7 @@ class DocExamplesTest extends TestCase
         $this->expectOutputString('Custom: Error');
     }
 
-    public function testGetRouterStatically()
+    public function testGetRouterStatically(): void
     {
         $router = Flight::router();
         Flight::request()->method = 'GET';

tests/EngineTest.php

@@ -30,7 +30,7 @@ class EngineTest extends TestCase
         $_SERVER = [];
     }
 
-    public function testInitBeforeStart()
+    public function testInitBeforeStart(): void
     {
         $engine = new class extends Engine {
             public function getInitializedVar()
@@ -49,7 +49,7 @@ class EngineTest extends TestCase
         $this->assertTrue($engine->response()->content_length);
     }
 
-	public function testInitBeforeStartV2OutputBuffering()
+	public function testInitBeforeStartV2OutputBuffering(): void
     {
         $engine = new class extends Engine {
             public function getInitializedVar()
@@ -68,14 +68,14 @@ class EngineTest extends TestCase
         $this->assertTrue($engine->response()->content_length);
     }
 
-    public function testHandleErrorNoErrorNumber()
+    public function testHandleErrorNoErrorNumber(): void
     {
         $engine = new Engine();
         $result = $engine->handleError(0, '', '', 0);
         $this->assertFalse($result);
     }
 
-    public function testHandleErrorWithException()
+    public function testHandleErrorWithException(): void
     {
         $engine = new Engine();
         $this->expectException(Exception::class);
@@ -84,14 +84,14 @@ class EngineTest extends TestCase
         $engine->handleError(5, 'thrown error message', '', 0);
     }
 
-    public function testHandleException()
+    public function testHandleException(): void
     {
         $engine = new Engine();
         $this->expectOutputRegex('~\<h1\>500 Internal Server Error\</h1\>[\s\S]*\<h3\>thrown exception message \(20\)\</h3\>~');
         $engine->handleException(new Exception('thrown exception message', 20));
     }
 
-    public function testMapExistingMethod()
+    public function testMapExistingMethod(): void
     {
         $engine = new Engine();
         $this->expectException(Exception::class);
@@ -100,7 +100,7 @@ class EngineTest extends TestCase
         });
     }
 
-    public function testRegisterExistingMethod()
+    public function testRegisterExistingMethod(): void
     {
         $engine = new Engine();
         $this->expectException(Exception::class);
@@ -108,7 +108,7 @@ class EngineTest extends TestCase
         $engine->register('_error', 'stdClass');
     }
 
-    public function testSetArrayOfValues()
+    public function testSetArrayOfValues(): void
     {
         $engine = new Engine();
         $engine->set([ 'key1' => 'value1', 'key2' => 'value2']);
@@ -116,7 +116,7 @@ class EngineTest extends TestCase
         $this->assertEquals('value2', $engine->get('key2'));
     }
 
-    public function testStartWithRoute()
+    public function testStartWithRoute(): void
     {
         $_SERVER['REQUEST_METHOD'] = 'GET';
         $_SERVER['REQUEST_URI'] = '/someRoute';
@@ -135,7 +135,7 @@ class EngineTest extends TestCase
     }
 
     // n0nag0n - I don't know why this does what it does, but it's existing framework functionality 1/1/24
-    public function testStartWithRouteButReturnedValueThrows404()
+    public function testStartWithRouteButReturnedValueThrows404(): void
     {
         $_SERVER['REQUEST_METHOD'] = 'GET';
         $_SERVER['REQUEST_URI'] = '/someRoute';
@@ -154,7 +154,7 @@ class EngineTest extends TestCase
         $engine->start();
     }
 	
-	public function testStartWithRouteButReturnedValueThrows404V2OutputBuffering()
+	public function testStartWithRouteButReturnedValueThrows404V2OutputBuffering(): void
     {
         $_SERVER['REQUEST_METHOD'] = 'GET';
         $_SERVER['REQUEST_URI'] = '/someRoute';
@@ -198,7 +198,7 @@ class EngineTest extends TestCase
 		$this->expectOutputString('i rani ran');
 	}
 
-    public function testStopWithCode()
+    public function testStopWithCode(): void
     {
         $engine = new class extends Engine {
             public function getLoader()
@@ -221,7 +221,7 @@ class EngineTest extends TestCase
         $this->assertEquals(500, $engine->response()->status());
     }
 
-	public function testStopWithCodeV2OutputBuffering()
+	public function testStopWithCodeV2OutputBuffering(): void
     {
         $engine = new class extends Engine {
             public function getLoader()
@@ -249,7 +249,7 @@ class EngineTest extends TestCase
         $this->assertEquals(500, $engine->response()->status());
     }
 
-    public function testPostRoute()
+    public function testPostRoute(): void
     {
         $engine = new Engine();
         $engine->post('/someRoute', function () {
@@ -260,7 +260,7 @@ class EngineTest extends TestCase
         $this->assertEquals('/someRoute', $routes[0]->pattern);
     }
 
-    public function testPutRoute()
+    public function testPutRoute(): void
     {
         $engine = new Engine();
         $engine->put('/someRoute', function () {
@@ -271,7 +271,7 @@ class EngineTest extends TestCase
         $this->assertEquals('/someRoute', $routes[0]->pattern);
     }
 
-    public function testPatchRoute()
+    public function testPatchRoute(): void
     {
         $engine = new Engine();
         $engine->patch('/someRoute', function () {
@@ -282,7 +282,7 @@ class EngineTest extends TestCase
         $this->assertEquals('/someRoute', $routes[0]->pattern);
     }
 
-    public function testDeleteRoute()
+    public function testDeleteRoute(): void
     {
         $engine = new Engine();
         $engine->delete('/someRoute', function () {
@@ -293,7 +293,7 @@ class EngineTest extends TestCase
         $this->assertEquals('/someRoute', $routes[0]->pattern);
     }
 
-    public function testHeadRoute()
+    public function testHeadRoute(): void
     {
         $engine = new Engine();
         $engine->route('GET /someRoute', function () {
@@ -307,7 +307,7 @@ class EngineTest extends TestCase
         $this->expectOutputString('');
     }
 
-    public function testHalt()
+    public function testHalt(): void
     {
         $engine = new class extends Engine {
             public function getLoader()
@@ -331,7 +331,7 @@ class EngineTest extends TestCase
         $this->assertEquals(500, $engine->response()->status());
     }
 
-    public function testRedirect()
+    public function testRedirect(): void
     {
         $engine = new Engine();
         $engine->redirect('https://github.com', 302);
@@ -339,7 +339,7 @@ class EngineTest extends TestCase
         $this->assertEquals(302, $engine->response()->status());
     }
 
-    public function testRedirectWithBaseUrl()
+    public function testRedirectWithBaseUrl(): void
     {
         $engine = new Engine();
         $engine->set('flight.base_url', '/subdirectory');
@@ -348,7 +348,7 @@ class EngineTest extends TestCase
         $this->assertEquals(301, $engine->response()->status());
     }
 
-    public function testJsonRequestBody()
+    public function testJsonRequestBody(): void
     {
         $engine = new Engine();
         $tmpfile = tmpfile();
@@ -375,7 +375,7 @@ class EngineTest extends TestCase
         $this->expectOutputString('value1value2');
     }
 
-    public function testJson()
+    public function testJson(): void
     {
         $engine = new Engine();
         $engine->json(['key1' => 'value1', 'key2' => 'value2']);
@@ -402,7 +402,7 @@ class EngineTest extends TestCase
 		$engine->json(['key1' => 'value1', 'key2' => 'value2', 'utf8_emoji' => "\xB1\x31"]);
 	}
 
-	public function testJsonV2OutputBuffering()
+	public function testJsonV2OutputBuffering(): void
     {
         $engine = new Engine();
 		$engine->response()->v2_output_buffering = true;
@@ -412,7 +412,7 @@ class EngineTest extends TestCase
         $this->assertEquals(200, $engine->response()->status());
     }
 
-	public function testJsonHalt()
+	public function testJsonHalt(): void
     {
         $engine = new Engine();
 		$this->expectOutputString('{"key1":"value1","key2":"value2"}');
@@ -422,7 +422,7 @@ class EngineTest extends TestCase
 		$this->assertEquals('{"key1":"value1","key2":"value2"}', $engine->response()->getBody());
     }
 
-    public function testJsonP()
+    public function testJsonP(): void
     {
         $engine = new Engine();
         $engine->request()->query['jsonp'] = 'whatever';
@@ -432,7 +432,7 @@ class EngineTest extends TestCase
 		$this->assertEquals('whatever({"key1":"value1","key2":"value2"});', $engine->response()->getBody());
     }
 
-	public function testJsonPV2OutputBuffering()
+	public function testJsonPV2OutputBuffering(): void
     {
         $engine = new Engine();
 		$engine->response()->v2_output_buffering = true;
@@ -443,7 +443,7 @@ class EngineTest extends TestCase
         $this->assertEquals(200, $engine->response()->status());
     }
 
-    public function testJsonpBadParam()
+    public function testJsonpBadParam(): void
     {
         $engine = new Engine();
         $engine->jsonp(['key1' => 'value1', 'key2' => 'value2']);
@@ -452,7 +452,7 @@ class EngineTest extends TestCase
         $this->assertEquals(200, $engine->response()->status());
     }
 
-	public function testJsonpBadParamV2OutputBuffering()
+	public function testJsonpBadParamV2OutputBuffering(): void
     {
         $engine = new Engine();
 		$engine->response()->v2_output_buffering = true;
@@ -462,14 +462,14 @@ class EngineTest extends TestCase
         $this->assertEquals(200, $engine->response()->status());
     }
 
-    public function testEtagSimple()
+    public function testEtagSimple(): void
     {
         $engine = new Engine();
         $engine->etag('etag');
         $this->assertEquals('"etag"', $engine->response()->headers()['ETag']);
     }
 
-    public function testEtagWithHttpIfNoneMatch()
+    public function testEtagWithHttpIfNoneMatch(): void
     {
         $engine = new Engine;
         $_SERVER['HTTP_IF_NONE_MATCH'] = 'etag';
@@ -478,14 +478,14 @@ class EngineTest extends TestCase
         $this->assertEquals(304, $engine->response()->status());
     }
 
-    public function testLastModifiedSimple()
+    public function testLastModifiedSimple(): void
     {
         $engine = new Engine();
         $engine->lastModified(1234567890);
         $this->assertEquals('Fri, 13 Feb 2009 23:31:30 GMT', $engine->response()->headers()['Last-Modified']);
     }
 
-    public function testLastModifiedWithHttpIfModifiedSince()
+    public function testLastModifiedWithHttpIfModifiedSince(): void
     {
         $engine = new Engine;
         $_SERVER['HTTP_IF_MODIFIED_SINCE'] = 'Fri, 13 Feb 2009 23:31:30 GMT';
@@ -494,7 +494,7 @@ class EngineTest extends TestCase
         $this->assertEquals(304, $engine->response()->status());
     }
 
-    public function testGetUrl()
+    public function testGetUrl(): void
     {
         $engine = new Engine();
         $engine->route('/path1/@param:[0-9]{3}', function () {
@@ -504,7 +504,7 @@ class EngineTest extends TestCase
         $this->assertEquals('/path1/123', $url);
     }
 
-    public function testGetUrlComplex()
+    public function testGetUrlComplex(): void
     {
         $engine = new Engine();
         $engine->route('/item/@item_param:[a-z0-9]{16}/by-status/@token:[a-z0-9]{16}', function () {
@@ -514,7 +514,7 @@ class EngineTest extends TestCase
         $this->assertEquals('/item/1234567890123456/by-status/6543210987654321', $url);
     }
 
-    public function testGetUrlInsideRoute()
+    public function testGetUrlInsideRoute(): void
     {
         $engine = new Engine();
         $engine->route('/path1/@param:[0-9]{3}', function () {
@@ -532,7 +532,7 @@ class EngineTest extends TestCase
         $this->assertEquals('/path1/123', $found_url);
     }
 
-    public function testMiddlewareCallableFunction()
+    public function testMiddlewareCallableFunction(): void
     {
         $engine = new Engine();
         $engine->route('/path1/@id', function ($id) {
@@ -546,7 +546,7 @@ class EngineTest extends TestCase
         $this->expectOutputString('before123OK123');
     }
 
-    public function testMiddlewareCallableFunctionReturnFalse()
+    public function testMiddlewareCallableFunctionReturnFalse(): void
     {
         $engine = new class extends Engine {
         };
@@ -563,7 +563,7 @@ class EngineTest extends TestCase
         $this->assertEquals(403, $engine->response()->status());
     }
 
-    public function testMiddlewareClassBefore()
+    public function testMiddlewareClassBefore(): void
     {
         $middleware = new class {
             public function before($params)
@@ -582,7 +582,7 @@ class EngineTest extends TestCase
         $this->expectOutputString('before123OK123');
     }
 
-    public function testMiddlewareClassBeforeAndAfter()
+    public function testMiddlewareClassBeforeAndAfter(): void
     {
         $middleware = new class {
             public function before($params)
@@ -605,7 +605,7 @@ class EngineTest extends TestCase
         $this->expectOutputString('before123OK123after123');
     }
 
-    public function testMiddlewareClassAfter()
+    public function testMiddlewareClassAfter(): void
     {
         $middleware = new class {
             public function after($params)
@@ -624,7 +624,7 @@ class EngineTest extends TestCase
         $this->expectOutputString('OK123after123');
     }
 
-	public function testMiddlewareClassStringNoContainer()
+	public function testMiddlewareClassStringNoContainer(): void
     {
         $middleware = new class {
             public function after($params)
@@ -643,7 +643,7 @@ class EngineTest extends TestCase
         $this->expectOutputString('OK123after123');
     }
 
-	public function testMiddlewareClassStringWithContainer()
+	public function testMiddlewareClassStringWithContainer(): void
     {
 
 		$engine = new Engine();
@@ -667,7 +667,7 @@ class EngineTest extends TestCase
         $this->expectOutputString('I returned before the route was called with the following parameters: {"id":"123"}OK123');
     }
 
-    public function testMiddlewareClassAfterFailedCheck()
+    public function testMiddlewareClassAfterFailedCheck(): void
     {
         $middleware = new class {
             public function after($params)
@@ -689,7 +689,7 @@ class EngineTest extends TestCase
         $this->expectOutputString('Forbidden');
     }
 
-    public function testMiddlewareCallableFunctionMultiple()
+    public function testMiddlewareCallableFunctionMultiple(): void
     {
         $engine = new Engine();
         $engine->route('/path1/@id', function ($id) {
@@ -707,7 +707,7 @@ class EngineTest extends TestCase
     }
 
     // Pay attention to the order on how the middleware is executed in this test.
-    public function testMiddlewareClassCallableRouteMultiple()
+    public function testMiddlewareClassCallableRouteMultiple(): void
     {
         $middleware = new class {
             public function before($params)
@@ -739,7 +739,7 @@ class EngineTest extends TestCase
         $this->expectOutputString('before456before123OKafter123456after123');
     }
 
-    public function testMiddlewareClassGroupRouteMultipleBooyah()
+    public function testMiddlewareClassGroupRouteMultipleBooyah(): void
     {
         $middleware = new class {
             public function before($params)
@@ -972,7 +972,7 @@ class EngineTest extends TestCase
 		$this->assertEquals('Method Not Allowed', $engine->response()->getBody());
 	}
 
-	public function testDownload()
+	public function testDownload(): void
     {
         $engine = new class extends Engine {
             public function getLoader()

tests/EventSystemTest.php

@@ -22,7 +22,7 @@ class EventSystemTest extends TestCase
     /**
      * Test registering and triggering a single listener.
      */
-    public function testRegisterAndTriggerSingleListener()
+    public function testRegisterAndTriggerSingleListener(): void
     {
         $called = false;
         Flight::onEvent('test.event', function () use (&$called) {
@@ -35,7 +35,7 @@ class EventSystemTest extends TestCase
     /**
      * Test registering multiple listeners for the same event.
      */
-    public function testRegisterMultipleListeners()
+    public function testRegisterMultipleListeners(): void
     {
         $counter = 0;
         Flight::onEvent('test.event', function () use (&$counter) {
@@ -51,7 +51,7 @@ class EventSystemTest extends TestCase
     /**
      * Test triggering an event with no listeners registered.
      */
-    public function testTriggerWithNoListeners()
+    public function testTriggerWithNoListeners(): void
     {
         // Should not throw any errors
         Flight::triggerEvent('non.existent.event');
@@ -61,7 +61,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that a listener receives a single argument correctly.
      */
-    public function testListenerReceivesSingleArgument()
+    public function testListenerReceivesSingleArgument(): void
     {
         $received = null;
         Flight::onEvent('test.event', function ($arg) use (&$received) {
@@ -74,7 +74,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that a listener receives multiple arguments correctly.
      */
-    public function testListenerReceivesMultipleArguments()
+    public function testListenerReceivesMultipleArguments(): void
     {
         $received = [];
         Flight::onEvent('test.event', function ($arg1, $arg2) use (&$received) {
@@ -87,7 +87,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that listeners are called in the order they were registered.
      */
-    public function testListenersCalledInOrder()
+    public function testListenersCalledInOrder(): void
     {
         $order = [];
         Flight::onEvent('test.event', function () use (&$order) {
@@ -103,7 +103,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that listeners are not called for unrelated events.
      */
-    public function testListenerNotCalledForOtherEvents()
+    public function testListenerNotCalledForOtherEvents(): void
     {
         $called = false;
         Flight::onEvent('test.event1', function () use (&$called) {
@@ -116,7 +116,7 @@ class EventSystemTest extends TestCase
     /**
      * Test overriding the onEvent method.
      */
-    public function testOverrideOnEvent()
+    public function testOverrideOnEvent(): void
     {
         $called = false;
         Flight::map('onEvent', function ($event, $callback) use (&$called) {
@@ -130,7 +130,7 @@ class EventSystemTest extends TestCase
     /**
      * Test overriding the triggerEvent method.
      */
-    public function testOverrideTriggerEvent()
+    public function testOverrideTriggerEvent(): void
     {
         $called = false;
         Flight::map('triggerEvent', function ($event, ...$args) use (&$called) {
@@ -143,7 +143,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that an overridden onEvent can still register listeners by calling the original method.
      */
-    public function testOverrideOnEventStillRegistersListener()
+    public function testOverrideOnEventStillRegistersListener(): void
     {
         $overrideCalled = false;
         Flight::map('onEvent', function ($event, $callback) use (&$overrideCalled) {
@@ -166,7 +166,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that an overridden triggerEvent can still trigger listeners by calling the original method.
      */
-    public function testOverrideTriggerEventStillTriggersListeners()
+    public function testOverrideTriggerEventStillTriggersListeners(): void
     {
         $overrideCalled = false;
         Flight::map('triggerEvent', function ($event, ...$args) use (&$overrideCalled) {
@@ -189,7 +189,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that an invalid callable throws an exception (if applicable).
      */
-    public function testInvalidCallableThrowsException()
+    public function testInvalidCallableThrowsException(): void
     {
         $this->expectException(TypeError::class);
         // Assuming the event system validates callables
@@ -199,7 +199,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that event propagation stops if a listener returns false.
      */
-    public function testStopPropagation()
+    public function testStopPropagation(): void
     {
         $firstCalled = false;
         $secondCalled = false;
@@ -229,7 +229,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that hasListeners() correctly identifies events with listeners.
      */
-    public function testHasListeners()
+    public function testHasListeners(): void
     {
         $this->assertFalse(Flight::eventDispatcher()->hasListeners('test.event'), 'Event should not have listeners before registration');
 
@@ -242,7 +242,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that getListeners() returns the correct listeners for an event.
      */
-    public function testGetListeners()
+    public function testGetListeners(): void
     {
         $callback1 = function () {
         };
@@ -263,7 +263,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that getListeners() returns an empty array for events with no listeners.
      */
-    public function testGetListenersForNonexistentEvent()
+    public function testGetListenersForNonexistentEvent(): void
     {
         $listeners = Flight::eventDispatcher()->getListeners('nonexistent.event');
         $this->assertIsArray($listeners, 'Should return an array for nonexistent events');
@@ -273,7 +273,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that getAllRegisteredEvents() returns all event names with registered listeners.
      */
-    public function testGetAllRegisteredEvents()
+    public function testGetAllRegisteredEvents(): void
     {
         $this->assertEmpty(Flight::eventDispatcher()->getAllRegisteredEvents(), 'No events should be registered initially');
 
@@ -291,7 +291,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that removeListener() correctly removes a specific listener from an event.
      */
-    public function testRemoveListener()
+    public function testRemoveListener(): void
     {
         $callback1 = function () {
             return 'callback1';
@@ -315,7 +315,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that removeAllListeners() correctly removes all listeners for an event.
      */
-    public function testRemoveAllListeners()
+    public function testRemoveAllListeners(): void
     {
         Flight::onEvent('test.event', function () {
         });
@@ -336,7 +336,7 @@ class EventSystemTest extends TestCase
     /**
      * Test that trying to remove listeners for nonexistent events doesn't cause errors.
      */
-    public function testRemoveListenersForNonexistentEvent()
+    public function testRemoveListenersForNonexistentEvent(): void
     {
         // Should not throw any errors
         Flight::eventDispatcher()->removeListener('nonexistent.event', function () {

tests/FilterTest.php

@@ -17,7 +17,7 @@ class FilterTest extends TestCase
     }
 
     // Run before and after filters
-    public function testBeforeAndAfter()
+    public function testBeforeAndAfter(): void
     {
         $this->app->map('hello', function ($name) {
             return "Hello, $name!";
@@ -39,7 +39,7 @@ class FilterTest extends TestCase
     }
 
     // Break out of a filter chain by returning false
-    public function testFilterChaining()
+    public function testFilterChaining(): void
     {
         $this->app->map('bye', function ($name) {
             return "Bye, $name!";

tests/FlightAsyncTest.php

@@ -28,7 +28,7 @@ class FlightAsyncTest extends TestCase
     }
 
     // Checks that default components are loaded
-    public function testSingleRoute()
+    public function testSingleRoute(): void
     {
         Flight::route('GET /', function () {
             echo 'hello world';
@@ -38,7 +38,7 @@ class FlightAsyncTest extends TestCase
         Flight::start();
     }
 
-    public function testMultipleRoutes()
+    public function testMultipleRoutes(): void
     {
         Flight::route('GET /', function () {
             echo 'hello world';
@@ -53,7 +53,7 @@ class FlightAsyncTest extends TestCase
         Flight::start();
     }
 
-    public function testMultipleStartsSingleRoute()
+    public function testMultipleStartsSingleRoute(): void
     {
         Flight::route('GET /', function () {
             echo 'hello world';
@@ -64,7 +64,7 @@ class FlightAsyncTest extends TestCase
         Flight::start();
     }
 
-    public function testMultipleStartsMultipleRoutes()
+    public function testMultipleStartsMultipleRoutes(): void
     {
         Flight::route('GET /', function () {
             echo 'hello world';

tests/FlightTest.php

@@ -33,7 +33,7 @@ class FlightTest extends TestCase
     }
 
     // Checks that default components are loaded
-    public function testDefaultComponents()
+    public function testDefaultComponents(): void
     {
         $request = Flight::request();
         $response = Flight::response();
@@ -47,7 +47,7 @@ class FlightTest extends TestCase
     }
 
     // Test get/set of variables
-    public function testGetAndSet()
+    public function testGetAndSet(): void
     {
         Flight::set('a', 1);
         $var = Flight::get('a');
@@ -69,7 +69,7 @@ class FlightTest extends TestCase
     }
 
     // Register a class
-    public function testRegister()
+    public function testRegister(): void
     {
         Flight::path(__DIR__ . '/classes');
 
@@ -90,7 +90,7 @@ class FlightTest extends TestCase
     }
 
     // Map a function
-    public function testMap()
+    public function testMap(): void
     {
         Flight::map('map1', function () {
             return 'hello';
@@ -102,7 +102,7 @@ class FlightTest extends TestCase
     }
 
     // Unmapped method
-    public function testUnmapped()
+    public function testUnmapped(): void
     {
         $this->expectException(Exception::class);
         $this->expectExceptionMessage('doesNotExist must be a mapped method.');
@@ -110,7 +110,7 @@ class FlightTest extends TestCase
         Flight::doesNotExist();
     }
 
-    public function testStaticRoute()
+    public function testStaticRoute(): void
     {
         Flight::route('/test', function () {
             echo 'test';
@@ -121,7 +121,7 @@ class FlightTest extends TestCase
         Flight::start();
     }
 
-    public function testStaticRouteGroup()
+    public function testStaticRouteGroup(): void
     {
         Flight::group('/group', function () {
             Flight::route('/test', function () {
@@ -150,7 +150,7 @@ class FlightTest extends TestCase
         Flight::start();
     }
 
-    public function testStaticRouteGet()
+    public function testStaticRouteGet(): void
     {
 
         // can't actually get "get" because that gets a variable
@@ -165,7 +165,7 @@ class FlightTest extends TestCase
         Flight::start();
     }
 
-    public function testStaticRoutePost()
+    public function testStaticRoutePost(): void
     {
 
         Flight::post('/test', function () {
@@ -179,7 +179,7 @@ class FlightTest extends TestCase
         Flight::start();
     }
 
-    public function testStaticRoutePut()
+    public function testStaticRoutePut(): void
     {
         Flight::put('/test', function () {
             echo 'test put';
@@ -192,7 +192,7 @@ class FlightTest extends TestCase
         Flight::start();
     }
 
-    public function testStaticRoutePatch()
+    public function testStaticRoutePatch(): void
     {
 
         Flight::patch('/test', function () {
@@ -206,7 +206,7 @@ class FlightTest extends TestCase
         Flight::start();
     }
 
-    public function testStaticRouteDelete()
+    public function testStaticRouteDelete(): void
     {
 
         Flight::delete('/test', function () {
@@ -220,7 +220,7 @@ class FlightTest extends TestCase
         Flight::start();
     }
 
-    public function testGetUrl()
+    public function testGetUrl(): void
     {
         Flight::route('/path1/@param:[a-zA-Z0-9]{2,3}', function () {
             echo 'I win';
@@ -229,7 +229,7 @@ class FlightTest extends TestCase
         $this->assertEquals('/path1/123', $url);
     }
 
-    public function testRouteGetUrlWithGroupSimpleParams()
+    public function testRouteGetUrlWithGroupSimpleParams(): void
     {
         Flight::group('/path1/@id', function () {
             Flight::route('/@name', function () {
@@ -241,7 +241,7 @@ class FlightTest extends TestCase
         $this->assertEquals('/path1/123/abc', $url);
     }
 
-    public function testRouteGetUrlNestedGroups()
+    public function testRouteGetUrlNestedGroups(): void
     {
         Flight::group('/user', function () {
             Flight::group('/all_users', function () {
@@ -260,7 +260,7 @@ class FlightTest extends TestCase
         $this->assertEquals('/user/all_users/check_user/check_one/normalpath', $url);
     }
 
-    public function testHookOutputBuffering()
+    public function testHookOutputBuffering(): void
     {
         Flight::route('/test', function () {
             echo 'test';
@@ -277,7 +277,7 @@ class FlightTest extends TestCase
         $this->assertEquals('test', Flight::response()->getBody());
     }
 
-    public function testHookOutputBufferingV2OutputBuffering()
+    public function testHookOutputBufferingV2OutputBuffering(): void
     {
         Flight::route('/test', function () {
             echo 'test';
@@ -296,7 +296,7 @@ class FlightTest extends TestCase
         $this->assertEquals('hooked before starttest', Flight::response()->getBody());
     }
 
-    public function testStreamRoute()
+    public function testStreamRoute(): void
     {
         $response_mock = new class extends Response {
             public function setRealHeader(string $header_string, bool $replace = true, int $response_code = 0): Response
@@ -320,7 +320,7 @@ class FlightTest extends TestCase
         $this->assertEquals(200, Flight::response()->status());
     }
 
-    public function testStreamRouteWithHeaders()
+    public function testStreamRouteWithHeaders(): void
     {
         $response_mock = new class extends Response {
             public function setRealHeader(string $header_string, bool $replace = true, int $response_code = 0): Response
@@ -346,7 +346,7 @@ class FlightTest extends TestCase
         $this->assertEquals(200, Flight::response()->status());
     }
 
-    public function testOverwriteBodyWithMiddleware()
+    public function testOverwriteBodyWithMiddleware(): void
     {
         $middleware = new class {
             public function after()

tests/LoaderTest.php

@@ -21,7 +21,7 @@ class LoaderTest extends TestCase
     }
 
     // Autoload a class
-    public function testAutoload()
+    public function testAutoload(): void
     {
         $this->loader->register('tests', User::class);
 
@@ -32,7 +32,7 @@ class LoaderTest extends TestCase
     }
 
     // Register a class
-    public function testRegister()
+    public function testRegister(): void
     {
         $this->loader->register('a', User::class);
 
@@ -44,7 +44,7 @@ class LoaderTest extends TestCase
     }
 
     // Register a class with constructor parameters
-    public function testRegisterWithConstructor()
+    public function testRegisterWithConstructor(): void
     {
         $this->loader->register('b', User::class, ['Bob']);
 
@@ -56,7 +56,7 @@ class LoaderTest extends TestCase
     }
 
     // Register a class with initialization
-    public function testRegisterWithInitialization()
+    public function testRegisterWithInitialization(): void
     {
         $this->loader->register('c', User::class, ['Bob'], function ($user) {
             $user->name = 'Fred';
@@ -70,7 +70,7 @@ class LoaderTest extends TestCase
     }
 
     // Get a non-shared instance of a class
-    public function testSharedInstance()
+    public function testSharedInstance(): void
     {
         $this->loader->register('d', User::class);
 
@@ -83,7 +83,7 @@ class LoaderTest extends TestCase
     }
 
     // Gets an object from a factory method
-    public function testRegisterUsingCallable()
+    public function testRegisterUsingCallable(): void
     {
         $this->loader->register('e', ['\tests\classes\Factory', 'create']);
 
@@ -105,7 +105,7 @@ class LoaderTest extends TestCase
     }
 
     // Gets an object from a callback function
-    public function testRegisterUsingCallback()
+    public function testRegisterUsingCallback(): void
     {
         $this->loader->register('f', function () {
             return Factory::create();
@@ -117,7 +117,7 @@ class LoaderTest extends TestCase
         self::assertInstanceOf(Factory::class, $obj);
     }
 
-    public function testUnregisterClass()
+    public function testUnregisterClass(): void
     {
         $this->loader->register('g', User::class);
         $current_class = $this->loader->get('g');
@@ -127,7 +127,7 @@ class LoaderTest extends TestCase
         $this->assertNull($unregistered_class_result);
     }
 
-    public function testNewInstance6Params()
+    public function testNewInstance6Params(): void
     {
         $TesterClass = $this->loader->newInstance(TesterClass::class, ['Bob','Fred', 'Joe', 'Jane', 'Sally', 'Suzie']);
         $this->assertEquals('Bob', $TesterClass->param1);
@@ -138,7 +138,7 @@ class LoaderTest extends TestCase
         $this->assertEquals('Suzie', $TesterClass->param6);
     }
 
-    public function testAddDirectoryAsArray()
+    public function testAddDirectoryAsArray(): void
     {
         $loader = new class extends Loader {
             public function getDirectories()
@@ -153,7 +153,7 @@ class LoaderTest extends TestCase
         ], $loader->getDirectories());
     }
 
-    public function testV2ClassLoading()
+    public function testV2ClassLoading(): void
     {
         $loader = new class extends Loader {
             public static function getV2ClassLoading()

tests/MapTest.php

@@ -19,7 +19,7 @@ class MapTest extends TestCase
     }
 
     // Map a closure
-    public function testClosureMapping()
+    public function testClosureMapping(): void
     {
         $this->app->map('map1', function () {
             return 'hello';
@@ -31,7 +31,7 @@ class MapTest extends TestCase
     }
 
     // Map a function
-    public function testFunctionMapping()
+    public function testFunctionMapping(): void
     {
         $this->app->map('map2', function () {
             return 'hello';
@@ -43,7 +43,7 @@ class MapTest extends TestCase
     }
 
     // Map a class method
-    public function testClassMethodMapping()
+    public function testClassMethodMapping(): void
     {
         $h = new Hello();
 
@@ -55,7 +55,7 @@ class MapTest extends TestCase
     }
 
     // Map a static class method
-    public function testStaticClassMethodMapping()
+    public function testStaticClassMethodMapping(): void
     {
         $this->app->map('map4', [Hello::class, 'sayBye']);
 
@@ -65,7 +65,7 @@ class MapTest extends TestCase
     }
 
     // Unmapped method
-    public function testUnmapped()
+    public function testUnmapped(): void
     {
         $this->expectException(Exception::class);
         $this->expectExceptionMessage('doesNotExist must be a mapped method.');

tests/PdoWrapperTest.php

@@ -30,55 +30,55 @@ class PdoWrapperTest extends TestCase
         $this->pdo_wrapper->exec('DROP TABLE test');
     }
 
-    public function testRunQuerySelectAllStatement()
+    public function testRunQuerySelectAllStatement(): void
     {
         $statement = $this->pdo_wrapper->runQuery('SELECT * FROM test');
         $this->assertInstanceOf(PDOStatement::class, $statement);
         $this->assertCount(3, $statement->fetchAll());
     }
 
-    public function testRunQuerySelectOneStatement()
+    public function testRunQuerySelectOneStatement(): void
     {
         $statement = $this->pdo_wrapper->runQuery('SELECT * FROM test WHERE id = 1');
         $this->assertInstanceOf(PDOStatement::class, $statement);
         $this->assertCount(1, $statement->fetchAll());
     }
 
-    public function testRunQueryInsertStatement()
+    public function testRunQueryInsertStatement(): void
     {
         $statement = $this->pdo_wrapper->runQuery('INSERT INTO test (name) VALUES ("four")');
         $this->assertInstanceOf(PDOStatement::class, $statement);
         $this->assertEquals(1, $statement->rowCount());
     }
 
-    public function testRunQueryUpdateStatement()
+    public function testRunQueryUpdateStatement(): void
     {
         $statement = $this->pdo_wrapper->runQuery('UPDATE test SET name = "something" WHERE name LIKE ?', ['%t%']);
         $this->assertInstanceOf(PDOStatement::class, $statement);
         $this->assertEquals(2, $statement->rowCount());
     }
 
-    public function testRunQueryDeleteStatement()
+    public function testRunQueryDeleteStatement(): void
     {
         $statement = $this->pdo_wrapper->runQuery('DELETE FROM test WHERE name LIKE ?', ['%t%']);
         $this->assertInstanceOf(PDOStatement::class, $statement);
         $this->assertEquals(2, $statement->rowCount());
     }
 
-    public function testFetchField()
+    public function testFetchField(): void
     {
         $id = $this->pdo_wrapper->fetchField('SELECT id FROM test WHERE name = ?', ['two']);
         $this->assertEquals(2, $id);
     }
 
-    public function testFetchRow()
+    public function testFetchRow(): void
     {
         $row = $this->pdo_wrapper->fetchRow('SELECT * FROM test WHERE name = ?', ['two']);
         $this->assertEquals(2, $row['id']);
         $this->assertEquals('two', $row['name']);
     }
 
-    public function testFetchAll()
+    public function testFetchAll(): void
     {
         $rows = $this->pdo_wrapper->fetchAll('SELECT * FROM test');
         $this->assertCount(3, $rows);
@@ -90,14 +90,14 @@ class PdoWrapperTest extends TestCase
         $this->assertEquals('three', $rows[2]['name']);
     }
 
-    public function testFetchAllNoRows()
+    public function testFetchAllNoRows(): void
     {
         $rows = $this->pdo_wrapper->fetchAll('SELECT * FROM test WHERE 1 = 2');
         $this->assertCount(0, $rows);
         $this->assertSame([], $rows);
     }
 
-    public function testFetchAllWithNamedParams()
+    public function testFetchAllWithNamedParams(): void
     {
         $rows = $this->pdo_wrapper->fetchAll('SELECT * FROM test WHERE name = :name', [ 'name' => 'two']);
         $this->assertCount(1, $rows);
@@ -105,25 +105,25 @@ class PdoWrapperTest extends TestCase
         $this->assertEquals('two', $rows[0]['name']);
     }
 
-    public function testFetchAllWithInInt()
+    public function testFetchAllWithInInt(): void
     {
         $rows = $this->pdo_wrapper->fetchAll('SELECT id FROM test WHERE id IN(?   )', [ [1,2 ]]);
         $this->assertEquals(2, count($rows));
     }
 
-    public function testFetchAllWithInString()
+    public function testFetchAllWithInString(): void
     {
         $rows = $this->pdo_wrapper->fetchAll('SELECT id FROM test WHERE name IN(?)', [ ['one','two' ]]);
         $this->assertEquals(2, count($rows));
     }
 
-    public function testFetchAllWithInStringCommas()
+    public function testFetchAllWithInStringCommas(): void
     {
         $rows = $this->pdo_wrapper->fetchAll('SELECT id FROM test WHERE id > ? AND name IN( ?)  ', [ 0, 'one,two' ]);
         $this->assertEquals(2, count($rows));
     }
 
-    public function testPullDataFromDsn()
+    public function testPullDataFromDsn(): void
     {
         // Testing protected method using reflection
         $reflection = new ReflectionClass($this->pdo_wrapper);
@@ -158,7 +158,7 @@ class PdoWrapperTest extends TestCase
         ], $pgsqlResult);
     }
 
-    public function testLogQueries()
+    public function testLogQueries(): void
     {
         // Create a new PdoWrapper with tracking enabled
         $trackingPdo = new PdoWrapper('sqlite::memory:', null, null, null, true);

tests/RedirectTest.php

@@ -29,7 +29,7 @@ class RedirectTest extends TestCase
     }
 
     // The base should be the subdirectory
-    public function testBase()
+    public function testBase(): void
     {
         $base = $this->app->request()->base;
 
@@ -37,7 +37,7 @@ class RedirectTest extends TestCase
     }
 
     // Absolute URLs should include the base
-    public function testAbsoluteUrl()
+    public function testAbsoluteUrl(): void
     {
         $url = '/login';
         $base = $this->app->request()->base;
@@ -46,7 +46,7 @@ class RedirectTest extends TestCase
     }
 
     // Relative URLs should include the base
-    public function testRelativeUrl()
+    public function testRelativeUrl(): void
     {
         $url = 'login';
         $base = $this->app->request()->base;
@@ -55,7 +55,7 @@ class RedirectTest extends TestCase
     }
 
     // External URLs should ignore the base
-    public function testHttpUrl()
+    public function testHttpUrl(): void
     {
         $url = 'http://www.yahoo.com';
         $base = $this->app->request()->base;
@@ -64,7 +64,7 @@ class RedirectTest extends TestCase
     }
 
     // Configuration should override derived value
-    public function testBaseOverride()
+    public function testBaseOverride(): void
     {
         $url = 'login';
         $base = $this->app->get('flight.base_url') ?? $this->app->request()->base;

tests/RegisterTest.php

@@ -18,7 +18,7 @@ class RegisterTest extends TestCase
     }
 
     // Register a class
-    public function testRegister()
+    public function testRegister(): void
     {
         $this->app->register('reg1', User::class);
 
@@ -30,7 +30,7 @@ class RegisterTest extends TestCase
     }
 
     // Register a class with constructor parameters
-    public function testRegisterWithConstructor()
+    public function testRegisterWithConstructor(): void
     {
         $this->app->register('reg2', User::class, ['Bob']);
 
@@ -42,7 +42,7 @@ class RegisterTest extends TestCase
     }
 
     // Register a class with initialization
-    public function testRegisterWithInitialization()
+    public function testRegisterWithInitialization(): void
     {
         $this->app->register('reg3', User::class, ['Bob'], function ($user) {
             $user->name = 'Fred';
@@ -56,7 +56,7 @@ class RegisterTest extends TestCase
     }
 
     // Get a non-shared instance of a class
-    public function testSharedInstance()
+    public function testSharedInstance(): void
     {
         $this->app->register('reg4', User::class);
 
@@ -69,7 +69,7 @@ class RegisterTest extends TestCase
     }
 
     // Map method takes precedence over register
-    public function testMapOverridesRegister()
+    public function testMapOverridesRegister(): void
     {
         $this->app->register('reg5', User::class);
 

tests/RenderTest.php

@@ -18,7 +18,7 @@ class RenderTest extends TestCase
     }
 
     // Render a view
-    public function testRenderView()
+    public function testRenderView(): void
     {
         $this->app->render('hello', ['name' => 'Bob']);
 
@@ -26,7 +26,7 @@ class RenderTest extends TestCase
     }
 
     // Renders a view into a layout
-    public function testRenderLayout()
+    public function testRenderLayout(): void
     {
         $this->app->render('hello', ['name' => 'Bob'], 'content');
         $this->app->render('layouts/layout');

tests/RequestTest.php

@@ -39,7 +39,7 @@ class RequestTest extends TestCase
         unset($_SERVER);
     }
 
-    public function testDefaults()
+    public function testDefaults(): void
     {
         $this->assertEquals('/', $this->request->url);
         $this->assertEquals('/', $this->request->base);
@@ -54,13 +54,13 @@ class RequestTest extends TestCase
         $this->assertEquals('example.com', $this->request->host);
     }
 
-    public function testIpAddress()
+    public function testIpAddress(): void
     {
         $this->assertEquals('8.8.8.8', $this->request->ip);
         $this->assertEquals('32.32.32.32', $this->request->proxy_ip);
     }
 
-    public function testSubdirectory()
+    public function testSubdirectory(): void
     {
         $_SERVER['SCRIPT_NAME'] = '/subdir/index.php';
 
@@ -69,7 +69,7 @@ class RequestTest extends TestCase
         $this->assertEquals('/subdir', $request->base);
     }
 
-    public function testQueryParameters()
+    public function testQueryParameters(): void
     {
         $_SERVER['REQUEST_URI'] = '/page?id=1&name=bob';
 
@@ -80,7 +80,7 @@ class RequestTest extends TestCase
         $this->assertEquals('bob', $request->query->name);
     }
 
-    public function testCollections()
+    public function testCollections(): void
     {
         $_SERVER['REQUEST_URI'] = '/page?id=1';
 
@@ -98,7 +98,7 @@ class RequestTest extends TestCase
         $this->assertEquals(1, $request->files->q);
     }
 
-    public function testJsonWithEmptyBody()
+    public function testJsonWithEmptyBody(): void
     {
         $_SERVER['CONTENT_TYPE'] = 'application/json';
 
@@ -107,7 +107,7 @@ class RequestTest extends TestCase
         $this->assertSame([], $request->data->getData());
     }
 
-    public function testMethodOverrideWithHeader()
+    public function testMethodOverrideWithHeader(): void
     {
         $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'] = 'PUT';
 
@@ -116,7 +116,7 @@ class RequestTest extends TestCase
         $this->assertEquals('PUT', $request->method);
     }
 
-    public function testMethodOverrideWithPost()
+    public function testMethodOverrideWithPost(): void
     {
         $_REQUEST['_method'] = 'PUT';
 
@@ -125,7 +125,7 @@ class RequestTest extends TestCase
         $this->assertEquals('PUT', $request->method);
     }
 
-    public function testHttps()
+    public function testHttps(): void
     {
         $_SERVER['HTTPS'] = 'on';
         $request = new Request();
@@ -156,7 +156,7 @@ class RequestTest extends TestCase
         $this->assertEquals('http', $request->scheme);
     }
 
-    public function testInitUrlSameAsBaseDirectory()
+    public function testInitUrlSameAsBaseDirectory(): void
     {
         $request = new Request([
             'url' => '/vagrant/public/flightphp',
@@ -168,7 +168,7 @@ class RequestTest extends TestCase
         $this->assertEquals('/flightphp', $request->url);
     }
 
-    public function testInitNoUrl()
+    public function testInitNoUrl(): void
     {
         $request = new Request([
             'url' => '',
@@ -179,7 +179,7 @@ class RequestTest extends TestCase
         $this->assertEquals('/', $request->url);
     }
 
-    public function testInitWithJsonBody()
+    public function testInitWithJsonBody(): void
     {
         // create dummy file to pull request body from
         $tmpfile = tmpfile();
@@ -199,7 +199,7 @@ class RequestTest extends TestCase
         $this->assertEquals('{"foo":"bar"}', $request->getBody());
     }
 
-    public function testInitWithFormBody()
+    public function testInitWithFormBody(): void
     {
         // create dummy file to pull request body from
         $tmpfile = tmpfile();
@@ -222,7 +222,7 @@ class RequestTest extends TestCase
         $this->assertEquals('foo=bar&baz=qux', $request->getBody());
     }
 
-    public function testGetHeader()
+    public function testGetHeader(): void
     {
         $_SERVER['HTTP_X_CUSTOM_HEADER'] = 'custom header value';
         $request = new Request();
@@ -236,7 +236,7 @@ class RequestTest extends TestCase
         $this->assertEquals('default value', $request->header('X-Non-Existent-Header', 'default value'));
     }
 
-    public function testGetHeaders()
+    public function testGetHeaders(): void
     {
         $_SERVER = [];
         $_SERVER['HTTP_X_CUSTOM_HEADER'] = 'custom header value';
@@ -244,14 +244,14 @@ class RequestTest extends TestCase
         $this->assertEquals(['X-Custom-Header' => 'custom header value'], $request->getHeaders());
     }
 
-    public function testGetHeadersWithEmptyServer()
+    public function testGetHeadersWithEmptyServer(): void
     {
         $_SERVER = [];
         $request = new Request();
         $this->assertEquals([], $request->getHeaders());
     }
 
-    public function testGetHeadersWithEmptyHeader()
+    public function testGetHeadersWithEmptyHeader(): void
     {
         $_SERVER = [];
         $_SERVER['HTTP_X_CUSTOM_HEADER'] = '';
@@ -259,7 +259,7 @@ class RequestTest extends TestCase
         $this->assertEquals(['X-Custom-Header' => ''], $request->headers());
     }
 
-    public function testGetHeadersWithMultipleHeaders()
+    public function testGetHeadersWithMultipleHeaders(): void
     {
         $_SERVER = [];
         $_SERVER['HTTP_X_CUSTOM_HEADER'] = 'custom header value';
@@ -271,7 +271,7 @@ class RequestTest extends TestCase
         ], $request->getHeaders());
     }
 
-    public function testGetFullUrlNoHttps()
+    public function testGetFullUrlNoHttps(): void
     {
         $_SERVER['HTTP_HOST'] = 'example.com';
         $_SERVER['REQUEST_URI'] = '/page?id=1';
@@ -279,7 +279,7 @@ class RequestTest extends TestCase
         $this->assertEquals('http://example.com/page?id=1', $request->getFullUrl());
     }
 
-    public function testGetFullUrlWithHttps()
+    public function testGetFullUrlWithHttps(): void
     {
         $_SERVER['HTTP_HOST'] = 'localhost:8000';
         $_SERVER['REQUEST_URI'] = '/page?id=1';
@@ -288,7 +288,7 @@ class RequestTest extends TestCase
         $this->assertEquals('https://localhost:8000/page?id=1', $request->getFullUrl());
     }
 
-    public function testGetBaseUrlNoHttps()
+    public function testGetBaseUrlNoHttps(): void
     {
         $_SERVER['HTTP_HOST'] = 'example.com';
         $_SERVER['REQUEST_URI'] = '/page?id=1';
@@ -296,7 +296,7 @@ class RequestTest extends TestCase
         $this->assertEquals('http://example.com', $request->getBaseUrl());
     }
 
-    public function testGetBaseUrlWithHttps()
+    public function testGetBaseUrlWithHttps(): void
     {
         $_SERVER['HTTP_HOST'] = 'localhost:8000';
         $_SERVER['REQUEST_URI'] = '/page?id=1';
@@ -305,7 +305,7 @@ class RequestTest extends TestCase
         $this->assertEquals('https://localhost:8000', $request->getBaseUrl());
     }
 
-    public function testGetSingleFileUpload()
+    public function testGetSingleFileUpload(): void
     {
         $_FILES['file'] = [
             'name' => 'file.txt',
@@ -326,7 +326,7 @@ class RequestTest extends TestCase
         $this->assertEquals(0, $file->getError());
     }
 
-    public function testGetMultiFileUpload()
+    public function testGetMultiFileUpload(): void
     {
         $_FILES['files'] = [
             'name' => ['file1.txt', 'file2.txt'],

tests/ResponseTest.php

@@ -26,20 +26,20 @@ class ResponseTest extends TestCase
         unset($_SERVER);
     }
 
-    public function testStatusDefault()
+    public function testStatusDefault(): void
     {
         $response = new Response();
         $this->assertSame(200, $response->status());
     }
 
-    public function testStatusValidCode()
+    public function testStatusValidCode(): void
     {
         $response = new Response();
         $response->status(200);
         $this->assertEquals(200, $response->status());
     }
 
-    public function testStatusInvalidCode()
+    public function testStatusInvalidCode(): void
     {
         $response = new Response();
         $this->expectException(Exception::class);
@@ -47,20 +47,20 @@ class ResponseTest extends TestCase
         $response->status(999);
     }
 
-    public function testStatusReturnObject()
+    public function testStatusReturnObject(): void
     {
         $response = new Response();
         $this->assertEquals($response, $response->status(200));
     }
 
-    public function testHeaderSingle()
+    public function testHeaderSingle(): void
     {
         $response = new Response();
         $response->header('Content-Type', 'text/html');
         $this->assertEquals(['Content-Type' => 'text/html'], $response->headers());
     }
 
-    public function testHeaderSingleKeepCaseSensitive()
+    public function testHeaderSingleKeepCaseSensitive(): void
     {
         $response = new Response();
         $response->header('content-type', 'text/html');
@@ -68,47 +68,47 @@ class ResponseTest extends TestCase
         $this->assertEquals(['content-type' => 'text/html', 'x-test' => 'test'], $response->getHeaders());
     }
 
-    public function testHeaderArray()
+    public function testHeaderArray(): void
     {
         $response = new Response();
         $response->header(['Content-Type' => 'text/html', 'X-Test' => 'test']);
         $this->assertEquals(['Content-Type' => 'text/html', 'X-Test' => 'test'], $response->headers());
     }
 
-    public function testHeaderReturnObject()
+    public function testHeaderReturnObject(): void
     {
         $response = new Response();
         $this->assertEquals($response, $response->header('Content-Type', 'text/html'));
     }
 
-    public function testGetHeaderCrazyCase()
+    public function testGetHeaderCrazyCase(): void
     {
         $response = new Response();
         $response->setHeader('CoNtEnT-tYpE', 'text/html');
         $this->assertEquals('text/html', $response->getHeader('content-type'));
     }
 
-    public function testWrite()
+    public function testWrite(): void
     {
         $response = new Response();
         $response->write('test');
         $this->assertEquals('test', $response->getBody());
     }
 
-    public function testWriteEmptyString()
+    public function testWriteEmptyString(): void
     {
         $response = new Response();
         $response->write('');
         $this->assertEquals('', $response->getBody());
     }
 
-    public function testWriteReturnObject()
+    public function testWriteReturnObject(): void
     {
         $response = new Response();
         $this->assertEquals($response, $response->write('test'));
     }
 
-    public function testClear()
+    public function testClear(): void
     {
         $response = new Response();
 
@@ -124,7 +124,7 @@ class ResponseTest extends TestCase
         $this->assertEquals(0, ob_get_length());
     }
 
-    public function testCacheSimple()
+    public function testCacheSimple(): void
     {
         $response = new Response();
         $cache_time = time() + 60;
@@ -135,7 +135,7 @@ class ResponseTest extends TestCase
         ], $response->headers());
     }
 
-    public function testCacheSimpleWithString()
+    public function testCacheSimpleWithString(): void
     {
         $response = new Response();
         $cache_time = time() + 60;
@@ -146,7 +146,7 @@ class ResponseTest extends TestCase
         ], $response->headers());
     }
 
-    public function testCacheSimpleWithPragma()
+    public function testCacheSimpleWithPragma(): void
     {
         $response = new Response();
         $cache_time = time() + 60;
@@ -158,7 +158,7 @@ class ResponseTest extends TestCase
         ], $response->headers());
     }
 
-    public function testCacheFalseExpiresValue()
+    public function testCacheFalseExpiresValue(): void
     {
         $response = new Response();
         $response->cache(false);
@@ -169,7 +169,7 @@ class ResponseTest extends TestCase
         ], $response->headers());
     }
 
-    public function testSendHeadersRegular()
+    public function testSendHeadersRegular(): void
     {
         $response = new class extends Response {
             protected $test_sent_headers = [];
@@ -209,13 +209,13 @@ class ResponseTest extends TestCase
         ], $sent_headers);
     }
 
-    public function testSentDefault()
+    public function testSentDefault(): void
     {
         $response = new Response();
         $this->assertFalse($response->sent());
     }
 
-    public function testSentTrue()
+    public function testSentTrue(): void
     {
         $response = new class extends Response {
             protected $test_sent_headers = [];
@@ -235,7 +235,7 @@ class ResponseTest extends TestCase
         $this->assertTrue($response->sent());
     }
 
-    public function testSendWithNoHeadersSent()
+    public function testSendWithNoHeadersSent(): void
     {
         $response = new class extends Response {
             protected $test_sent_headers = [];
@@ -272,7 +272,7 @@ class ResponseTest extends TestCase
         ], $sent_headers);
     }
 
-    public function testClearBody()
+    public function testClearBody(): void
     {
         $response = new Response();
         $response->write('test');
@@ -280,7 +280,7 @@ class ResponseTest extends TestCase
         $this->assertEquals('', $response->getBody());
     }
 
-    public function testOverwriteBody()
+    public function testOverwriteBody(): void
     {
         $response = new Response();
         $response->write('test');
@@ -289,7 +289,7 @@ class ResponseTest extends TestCase
         $this->assertEquals('new', $response->getBody());
     }
 
-    public function testResponseBodyCallback()
+    public function testResponseBodyCallback(): void
     {
         $response = new Response();
         $response->write('test');
@@ -303,7 +303,7 @@ class ResponseTest extends TestCase
         $this->assertEquals('grfg', $rot13_body);
     }
 
-    public function testResponseBodyCallbackGzip()
+    public function testResponseBodyCallbackGzip(): void
     {
         $response = new Response();
         $response->content_length = true;
@@ -329,7 +329,7 @@ class ResponseTest extends TestCase
         $this->assertEquals(strlen(gzencode('test')), strlen($gzip_body));
     }
 
-    public function testResponseBodyCallbackMultiple()
+    public function testResponseBodyCallbackMultiple(): void
     {
         $response = new Response();
         $response->write('test');

tests/RouterTest.php

@@ -33,7 +33,7 @@ class RouterTest extends TestCase
     }
 
     // Simple output
-    public function ok()
+    public function ok(): void
     {
         echo 'OK';
     }
@@ -54,7 +54,7 @@ class RouterTest extends TestCase
         $this->expectOutputString($str);
     }
 
-    public function routeRequest()
+    public function routeRequest(): void
     {
         $dispatched = false;
 
@@ -91,7 +91,7 @@ class RouterTest extends TestCase
     }
 
     // Default route
-    public function testDefaultRoute()
+    public function testDefaultRoute(): void
     {
         $this->router->map('/', [$this, 'ok']);
         $this->request->url = '/';
@@ -100,7 +100,7 @@ class RouterTest extends TestCase
     }
 
     // Simple path
-    public function testPathRoute()
+    public function testPathRoute(): void
     {
         $this->router->map('/path', [$this, 'ok']);
         $this->request->url = '/path';
@@ -109,7 +109,7 @@ class RouterTest extends TestCase
     }
 
     // Simple path with trailing slash
-    public function testPathRouteTrailingSlash()
+    public function testPathRouteTrailingSlash(): void
     {
         $this->router->map('/path/', [$this, 'ok']);
         $this->request->url = '/path';
@@ -117,7 +117,7 @@ class RouterTest extends TestCase
         $this->check('OK');
     }
 
-    public function testPathRouteWithUrlTrailingSlash()
+    public function testPathRouteWithUrlTrailingSlash(): void
     {
         $this->router->map('/path', [$this, 'ok']);
         $this->request->url = '/path/';
@@ -125,7 +125,7 @@ class RouterTest extends TestCase
         $this->check('OK');
     }
 
-    public function testGetRouteShortcut()
+    public function testGetRouteShortcut(): void
     {
         $this->router->get('/path', [$this, 'ok']);
         $this->request->url = '/path';
@@ -134,7 +134,7 @@ class RouterTest extends TestCase
         $this->check('OK');
     }
 
-    public function testHeadRouteShortcut()
+    public function testHeadRouteShortcut(): void
     {
         $route = $this->router->get('/path', [$this, 'ok']);
         $this->assertEquals(['GET', 'HEAD'], $route->methods);
@@ -144,7 +144,7 @@ class RouterTest extends TestCase
     }
 
     // POST route
-    public function testPostRoute()
+    public function testPostRoute(): void
     {
         $this->router->map('POST /', [$this, 'ok']);
         $this->request->url = '/';
@@ -153,7 +153,7 @@ class RouterTest extends TestCase
         $this->check('OK');
     }
 
-    public function testPostRouteShortcut()
+    public function testPostRouteShortcut(): void
     {
         $this->router->post('/path', [$this, 'ok']);
         $this->request->url = '/path';
@@ -163,7 +163,7 @@ class RouterTest extends TestCase
     }
 
     // Either GET or POST route
-    public function testGetPostRoute()
+    public function testGetPostRoute(): void
     {
         $this->router->map('GET|POST /', [$this, 'ok']);
         $this->request->url = '/';
@@ -172,7 +172,7 @@ class RouterTest extends TestCase
         $this->check('OK');
     }
 
-    public function testPutRouteShortcut()
+    public function testPutRouteShortcut(): void
     {
         $this->router->put('/path', [$this, 'ok']);
         $this->request->url = '/path';
@@ -181,7 +181,7 @@ class RouterTest extends TestCase
         $this->check('OK');
     }
 
-    public function testPatchRouteShortcut()
+    public function testPatchRouteShortcut(): void
     {
         $this->router->patch('/path', [$this, 'ok']);
         $this->request->url = '/path';
@@ -190,7 +190,7 @@ class RouterTest extends TestCase
         $this->check('OK');
     }
 
-    public function testDeleteRouteShortcut()
+    public function testDeleteRouteShortcut(): void
     {
         $this->router->delete('/path', [$this, 'ok']);
         $this->request->url = '/path';
@@ -200,7 +200,7 @@ class RouterTest extends TestCase
     }
 
     // Test regular expression matching
-    public function testRegEx()
+    public function testRegEx(): void
     {
         $this->router->map('/num/[0-9]+', [$this, 'ok']);
         $this->request->url = '/num/1234';
@@ -209,7 +209,7 @@ class RouterTest extends TestCase
     }
 
     // Passing URL parameters
-    public function testUrlParameters()
+    public function testUrlParameters(): void
     {
         $this->router->map('/user/@id', function ($id) {
             echo $id;
@@ -219,7 +219,7 @@ class RouterTest extends TestCase
         $this->check('123');
     }
 
-    public function testUrlParametersWithEncodedSlash()
+    public function testUrlParametersWithEncodedSlash(): void
     {
         $this->router->map('/redirect/@id', function ($id) {
             echo $id;
@@ -229,7 +229,7 @@ class RouterTest extends TestCase
         $this->check('before/after');
     }
 
-    public function testUrlParametersWithRealSlash()
+    public function testUrlParametersWithRealSlash(): void
     {
         $this->router->map('/redirect/@id', function ($id) {
             echo $id;
@@ -239,7 +239,7 @@ class RouterTest extends TestCase
         $this->check('404');
     }
 
-    public function testUrlParametersWithJapanese()
+    public function testUrlParametersWithJapanese(): void
     {
         $this->router->map('/わたしはひとです', function () {
             echo 'はい';
@@ -249,7 +249,7 @@ class RouterTest extends TestCase
         $this->check('はい');
     }
 
-    public function testUrlParametersWithJapaneseAndParam()
+    public function testUrlParametersWithJapaneseAndParam(): void
     {
         $this->router->map('/わたしはひとです/@name', function ($name) {
             echo $name;
@@ -260,7 +260,7 @@ class RouterTest extends TestCase
     }
 
     // Passing URL parameters matched with regular expression for a URL containing Cyrillic letters:
-    public function testRegExParametersCyrillic()
+    public function testRegExParametersCyrillic(): void
     {
         $this->router->map('/категория/@name:[абвгдеёжзийклмнопрстуфхцчшщъыьэюя]+', function ($name) {
             echo $name;
@@ -270,7 +270,7 @@ class RouterTest extends TestCase
         $this->check('цветя');
     }
 
-    public function testRegExOnlyCyrillicUrl()
+    public function testRegExOnlyCyrillicUrl(): void
     {
         $this->router->map('/категория/цветя', function () {
             echo 'цветя';
@@ -281,7 +281,7 @@ class RouterTest extends TestCase
     }
 
     // Passing URL parameters matched with regular expression
-    public function testRegExParameters()
+    public function testRegExParameters(): void
     {
         $this->router->map('/test/@name:[a-z]+', function ($name) {
             echo $name;
@@ -292,7 +292,7 @@ class RouterTest extends TestCase
     }
 
     // Optional parameters
-    public function testOptionalParameters()
+    public function testOptionalParameters(): void
     {
         $this->router->map('/blog(/@year(/@month(/@day)))', function ($year, $month, $day) {
             echo "$year,$month,$day";
@@ -303,7 +303,7 @@ class RouterTest extends TestCase
     }
 
     // Regex in optional parameters
-    public function testRegexOptionalParameters()
+    public function testRegexOptionalParameters(): void
     {
         $this->router->map('/@controller/@method(/@id:[0-9]+)', function ($controller, $method, $id) {
             echo "$controller,$method,$id";
@@ -314,7 +314,7 @@ class RouterTest extends TestCase
     }
 
     // Regex in optional parameters
-    public function testRegexEmptyOptionalParameters()
+    public function testRegexEmptyOptionalParameters(): void
     {
         $this->router->map('/@controller/@method(/@id:[0-9]+)', function ($controller, $method, $id) {
             echo "$controller,$method,$id";
@@ -325,7 +325,7 @@ class RouterTest extends TestCase
     }
 
     // Wildcard matching
-    public function testWildcard()
+    public function testWildcard(): void
     {
         $this->router->map('/account/*', [$this, 'ok']);
         $this->request->url = '/account/123/abc/xyz';
@@ -333,14 +333,14 @@ class RouterTest extends TestCase
         $this->check('OK');
     }
 
-    public function testWildcardDuplicate()
+    public function testWildcardDuplicate(): void
     {
         $this->router->map('/account/*', [$this, 'ok']);
         $this->request->url = '/account/account/account';
         $this->check('OK');
     }
 
-    public function testRouteWithLongQueryParamWithMultilineEncoded()
+    public function testRouteWithLongQueryParamWithMultilineEncoded(): void
     {
         $this->router->map('GET /api/intune/hey', [$this, 'ok']);
 
@@ -364,7 +364,7 @@ class RouterTest extends TestCase
     }
 
     // Check if route object was passed
-    public function testRouteObjectPassing()
+    public function testRouteObjectPassing(): void
     {
         $this->router->map('/yes_route', function ($route) {
             $this->assertIsObject($route);
@@ -387,7 +387,7 @@ class RouterTest extends TestCase
         $this->check();
     }
 
-    public function testRouteWithParameters()
+    public function testRouteWithParameters(): void
     {
         $this->router->map('/@one/@two', function ($one, $two, $route) {
             $this->assertCount(2, $route->params);
@@ -399,7 +399,7 @@ class RouterTest extends TestCase
         $this->check();
     }
 
-    public function testRouteBeingReturned()
+    public function testRouteBeingReturned(): void
     {
         $route = $this->router->map('/hi', function () {
         });
@@ -407,7 +407,7 @@ class RouterTest extends TestCase
         $this->assertSame($route, $route_in_router);
     }
 
-    public function testRouteSetAlias()
+    public function testRouteSetAlias(): void
     {
         $route = $this->router->map('/hi', function () {
         });
@@ -416,7 +416,7 @@ class RouterTest extends TestCase
     }
 
     // Test splat
-    public function testSplatWildcard()
+    public function testSplatWildcard(): void
     {
         $this->router->map('/account/*', function ($route) {
             echo $route->splat;
@@ -427,7 +427,7 @@ class RouterTest extends TestCase
     }
 
     // Test splat without trailing slash
-    public function testSplatWildcardTrailingSlash()
+    public function testSplatWildcardTrailingSlash(): void
     {
         $this->router->map('/account/*', function ($route) {
             echo $route->splat;
@@ -438,7 +438,7 @@ class RouterTest extends TestCase
     }
 
     // Test splat with named parameters
-    public function testSplatNamedPlusWildcard()
+    public function testSplatNamedPlusWildcard(): void
     {
         $this->router->map('/account/@name/*', function ($name, $route) {
             echo $route->splat;
@@ -450,7 +450,7 @@ class RouterTest extends TestCase
     }
 
     // Test not found
-    public function testNotFound()
+    public function testNotFound(): void
     {
         $this->router->map('/does_exist', [$this, 'ok']);
         $this->request->url = '/does_not_exist';
@@ -459,7 +459,7 @@ class RouterTest extends TestCase
     }
 
     // Test case sensitivity
-    public function testCaseSensitivity()
+    public function testCaseSensitivity(): void
     {
         $this->router->map('/hello', [$this, 'ok']);
         $this->request->url = '/HELLO';
@@ -468,7 +468,7 @@ class RouterTest extends TestCase
         $this->check('404');
     }
 
-    public function testGetAndClearRoutes()
+    public function testGetAndClearRoutes(): void
     {
         $this->router->map('/path1', [$this, 'ok']);
         $this->router->map('/path2', [$this, 'ok']);
@@ -488,7 +488,7 @@ class RouterTest extends TestCase
         $this->assertEquals(0, count($this->router->getRoutes()));
     }
 
-    public function testResetRoutes()
+    public function testResetRoutes(): void
     {
         $router = new class extends Router
         {
@@ -518,7 +518,7 @@ class RouterTest extends TestCase
     }
 
     // Passing URL parameters
-    public function testGroupRoutes()
+    public function testGroupRoutes(): void
     {
         $this->router->group('/user', function (Router $router) {
             $router->map('/@id', function ($id) {
@@ -532,7 +532,7 @@ class RouterTest extends TestCase
         $this->check('123');
     }
 
-    public function testGroupRouteWithEmptyMapPath()
+    public function testGroupRouteWithEmptyMapPath(): void
     {
         $this->router->group('/user', function (Router $router) {
             $router->map('', function () {
@@ -543,7 +543,7 @@ class RouterTest extends TestCase
         $this->check('I\'m a little teapot');
     }
 
-    public function testGroupRouteWithEmptyGetPath()
+    public function testGroupRouteWithEmptyGetPath(): void
     {
         $this->router->group('/user', function (Router $router) {
             $router->get('', function () {
@@ -555,7 +555,7 @@ class RouterTest extends TestCase
         $this->check('I\'m a little teapot');
     }
 
-    public function testGroupRouteWithEmptyMultipleMethodsPath()
+    public function testGroupRouteWithEmptyMultipleMethodsPath(): void
     {
         $this->router->group('/user', function (Router $router) {
             $router->map('GET|POST ', function () {
@@ -567,7 +567,7 @@ class RouterTest extends TestCase
         $this->check('I\'m a little teapot');
     }
 
-    public function testGroupRoutesMultiParams()
+    public function testGroupRoutesMultiParams(): void
     {
         $this->router->group('/user', function (Router $router) {
             $router->map('/@id', function ($id) {
@@ -581,7 +581,7 @@ class RouterTest extends TestCase
         $this->check('123abc');
     }
 
-    public function testGroupNestedRoutes()
+    public function testGroupNestedRoutes(): void
     {
         $this->router->group('/client', function (Router $router) {
             $router->group('/user', function (Router $router) {
@@ -597,7 +597,7 @@ class RouterTest extends TestCase
         $this->check('123abc');
     }
 
-    public function testGroupNestedRoutesWithCustomMethods()
+    public function testGroupNestedRoutesWithCustomMethods(): void
     {
         $this->router->group('/client', function (Router $router) {
             $router->group('/user', function (Router $router) {
@@ -614,7 +614,7 @@ class RouterTest extends TestCase
         $this->check('123abc');
     }
 
-    public function testGetUrlByAliasBadReferenceButCatchRecommendation()
+    public function testGetUrlByAliasBadReferenceButCatchRecommendation(): void
     {
         $this->router->map('/path1', [$this, 'ok'], false, 'path1');
         $this->expectException(\Exception::class);
@@ -622,7 +622,7 @@ class RouterTest extends TestCase
         $this->router->getUrlByAlias('path2');
     }
 
-    public function testRewindAndValid()
+    public function testRewindAndValid(): void
     {
         $this->router->map('/path1', [$this, 'ok']);
         $this->router->map('/path2', [$this, 'ok']);
@@ -645,14 +645,14 @@ class RouterTest extends TestCase
         $this->assertFalse($result);
     }
 
-    public function testGetRootUrlByAlias()
+    public function testGetRootUrlByAlias(): void
     {
         $this->router->map('/', [$this, 'ok'], false, 'path1');
         $url = $this->router->getUrlByAlias('path1');
         $this->assertEquals('/', $url);
     }
 
-    public function testGetUrlByAliasNoMatches()
+    public function testGetUrlByAliasNoMatches(): void
     {
         $this->router->map('/path1', [$this, 'ok'], false, 'path1');
         $this->expectException(\Exception::class);
@@ -660,98 +660,98 @@ class RouterTest extends TestCase
         $this->router->getUrlByAlias('path2');
     }
 
-    public function testGetUrlByAliasNoParams()
+    public function testGetUrlByAliasNoParams(): void
     {
         $this->router->map('/path1', [$this, 'ok'], false, 'path1');
         $url = $this->router->getUrlByAlias('path1');
         $this->assertEquals('/path1', $url);
     }
 
-    public function testGetUrlByAliasSimpleParams()
+    public function testGetUrlByAliasSimpleParams(): void
     {
         $this->router->map('/path1/@id', [$this, 'ok'], false, 'path1');
         $url = $this->router->getUrlByAlias('path1', ['id' => 123]);
         $this->assertEquals('/path1/123', $url);
     }
 
-    public function testGetUrlByAliasSimpleParamsWithNumber()
+    public function testGetUrlByAliasSimpleParamsWithNumber(): void
     {
         $this->router->map('/path1/@id1', [$this, 'ok'], false, 'path1');
         $url = $this->router->getUrlByAlias('path1', ['id1' => 123]);
         $this->assertEquals('/path1/123', $url);
     }
 
-    public function testGetUrlByAliasSimpleOptionalParamsWithParam()
+    public function testGetUrlByAliasSimpleOptionalParamsWithParam(): void
     {
         $this->router->map('/path1(/@id)', [$this, 'ok'], false, 'path1');
         $url = $this->router->getUrlByAlias('path1', ['id' => 123]);
         $this->assertEquals('/path1/123', $url);
     }
 
-    public function testGetUrlByAliasSimpleOptionalParamsWithNumberWithParam()
+    public function testGetUrlByAliasSimpleOptionalParamsWithNumberWithParam(): void
     {
         $this->router->map('/path1(/@id1)', [$this, 'ok'], false, 'path1');
         $url = $this->router->getUrlByAlias('path1', ['id1' => 123]);
         $this->assertEquals('/path1/123', $url);
     }
 
-    public function testGetUrlByAliasSimpleOptionalParamsNoParam()
+    public function testGetUrlByAliasSimpleOptionalParamsNoParam(): void
     {
         $this->router->map('/path1(/@id)', [$this, 'ok'], false, 'path1');
         $url = $this->router->getUrlByAlias('path1');
         $this->assertEquals('/path1', $url);
     }
 
-    public function testGetUrlByAliasSimpleOptionalParamsWithNumberNoParam()
+    public function testGetUrlByAliasSimpleOptionalParamsWithNumberNoParam(): void
     {
         $this->router->map('/path1(/@id1)', [$this, 'ok'], false, 'path1');
         $url = $this->router->getUrlByAlias('path1');
         $this->assertEquals('/path1', $url);
     }
 
-    public function testGetUrlByAliasMultipleParams()
+    public function testGetUrlByAliasMultipleParams(): void
     {
         $this->router->map('/path1/@id/@name', [$this, 'ok'], false, 'path1');
         $url = $this->router->getUrlByAlias('path1', ['id' => 123, 'name' => 'abc']);
         $this->assertEquals('/path1/123/abc', $url);
     }
 
-    public function testGetUrlByAliasMultipleComplexParams()
+    public function testGetUrlByAliasMultipleComplexParams(): void
     {
         $this->router->map('/path1/@id:[0-9]+/@name:[a-zA-Z0-9]{5}', [$this, 'ok'], false, 'path1');
         $url = $this->router->getUrlByAlias('path1', ['id' => '123', 'name' => 'abc']);
         $this->assertEquals('/path1/123/abc', $url);
     }
 
-    public function testGetUrlByAliasMultipleComplexParamsWithNumbers()
+    public function testGetUrlByAliasMultipleComplexParamsWithNumbers(): void
     {
         $this->router->map('/path1/@5id:[0-9]+/@n1ame:[a-zA-Z0-9]{5}', [$this, 'ok'], false, 'path1');
         $url = $this->router->getUrlByAlias('path1', ['5id' => '123', 'n1ame' => 'abc']);
         $this->assertEquals('/path1/123/abc', $url);
     }
 
-    public function testGetUrlByAliasMultipleComplexOptionalParamsMissingOne()
+    public function testGetUrlByAliasMultipleComplexOptionalParamsMissingOne(): void
     {
         $this->router->map('/path1(/@id:[0-9]+(/@name(/@crazy:[a-z]{5})))', [$this, 'ok'], false, 'path1');
         $url = $this->router->getUrlByAlias('path1', ['id' => '123', 'name' => 'abc']);
         $this->assertEquals('/path1/123/abc', $url);
     }
 
-    public function testGetUrlByAliasMultipleComplexOptionalParamsAllParams()
+    public function testGetUrlByAliasMultipleComplexOptionalParamsAllParams(): void
     {
         $this->router->map('/path1(/@id:[0-9]+(/@name(/@crazy:[a-z]{5})))', [$this, 'ok'], false, 'path1');
         $url = $this->router->getUrlByAlias('path1', ['id' => '123', 'name' => 'abc', 'crazy' => 'xyz']);
         $this->assertEquals('/path1/123/abc/xyz', $url);
     }
 
-    public function testGetUrlByAliasMultipleComplexOptionalParamsNoParams()
+    public function testGetUrlByAliasMultipleComplexOptionalParamsNoParams(): void
     {
         $this->router->map('/path1(/@id:[0-9]+(/@name(/@crazy:[a-z]{5})))', [$this, 'ok'], false, 'path1');
         $url = $this->router->getUrlByAlias('path1');
         $this->assertEquals('/path1', $url);
     }
 
-    public function testGetUrlByAliasWithGroupSimpleParams()
+    public function testGetUrlByAliasWithGroupSimpleParams(): void
     {
         $this->router->group('/path1/@id', function ($router) {
             $router->get('/@name', [$this, 'ok'], false, 'path1');
@@ -761,7 +761,7 @@ class RouterTest extends TestCase
         $this->assertEquals('/path1/123/abc', $url);
     }
 
-    public function testStripMultipleSlashesFromUrlAndStillMatch()
+    public function testStripMultipleSlashesFromUrlAndStillMatch(): void
     {
         $this->router->get('/', [ $this, 'ok' ]);
         $this->request->url = '///';

tests/UploadedFileTest.php

@@ -20,7 +20,7 @@ class UploadedFileTest extends TestCase
         }
     }
 
-    public function testMoveToSuccess()
+    public function testMoveToSuccess(): void
     {
         file_put_contents('tmp_name', 'test');
         $uploadedFile = new UploadedFile('file.txt', 'text/plain', 4, 'tmp_name', UPLOAD_ERR_OK);

tests/VariableTest.php

@@ -17,7 +17,7 @@ class VariableTest extends TestCase
     }
 
     // Set and get a variable
-    public function testSetAndGet()
+    public function testSetAndGet(): void
     {
         $this->app->set('a', 1);
         $var = $this->app->get('a');
@@ -25,7 +25,7 @@ class VariableTest extends TestCase
     }
 
     // Clear a specific variable
-    public function testClear()
+    public function testClear(): void
     {
         $this->app->set('b', 1);
         $this->app->clear('b');
@@ -34,7 +34,7 @@ class VariableTest extends TestCase
     }
 
     // Clear all variables
-    public function testClearAll()
+    public function testClearAll(): void
     {
         $this->app->set('c', 1);
         $this->app->clear();
@@ -43,7 +43,7 @@ class VariableTest extends TestCase
     }
 
     // Check if a variable exists
-    public function testHas()
+    public function testHas(): void
     {
         $this->app->set('d', 1);
         $this->assertTrue($this->app->has('d'));

tests/ViewTest.php

@@ -19,7 +19,7 @@ class ViewTest extends TestCase
     }
 
     // Set template variables
-    public function testVariables()
+    public function testVariables(): void
     {
         $this->view->set('test', 123);
 
@@ -33,7 +33,7 @@ class ViewTest extends TestCase
         $this->assertNull($this->view->get('test'));
     }
 
-    public function testMultipleVariables()
+    public function testMultipleVariables(): void
     {
         $this->view->set([
             'test' => 123,
@@ -50,21 +50,21 @@ class ViewTest extends TestCase
     }
 
     // Check if template files exist
-    public function testTemplateExists()
+    public function testTemplateExists(): void
     {
         $this->assertTrue($this->view->exists('hello.php'));
         $this->assertTrue(!$this->view->exists('unknown.php'));
     }
 
     // Render a template
-    public function testRender()
+    public function testRender(): void
     {
         $this->view->render('hello', ['name' => 'Bob']);
 
         $this->expectOutputString('Hello, Bob!');
     }
 
-    public function testRenderBadFilePath()
+    public function testRenderBadFilePath(): void
     {
         $this->expectException(Exception::class);
         $exception_message = sprintf(
@@ -79,7 +79,7 @@ class ViewTest extends TestCase
     }
 
     // Fetch template output
-    public function testFetch()
+    public function testFetch(): void
     {
         $output = $this->view->fetch('hello', ['name' => 'Bob']);
 
@@ -87,7 +87,7 @@ class ViewTest extends TestCase
     }
 
     // Default extension
-    public function testTemplateWithExtension()
+    public function testTemplateWithExtension(): void
     {
         $this->view->set('name', 'Bob');
 
@@ -97,7 +97,7 @@ class ViewTest extends TestCase
     }
 
     // Custom extension
-    public function testTemplateWithCustomExtension()
+    public function testTemplateWithCustomExtension(): void
     {
         $this->view->set('name', 'Bob');
         $this->view->extension = '.html';
@@ -107,7 +107,7 @@ class ViewTest extends TestCase
         $this->expectOutputString('Hello world, Bob!');
     }
 
-    public function testGetTemplateAbsolutePath()
+    public function testGetTemplateAbsolutePath(): void
     {
         $tmpfile = tmpfile();
         $this->view->extension = '';
@@ -115,14 +115,14 @@ class ViewTest extends TestCase
         $this->assertEquals($file_path, $this->view->getTemplate($file_path));
     }
 
-    public function testE()
+    public function testE(): void
     {
         $this->expectOutputString('<script>');
         $result = $this->view->e('<script>');
         $this->assertEquals('&lt;script&gt;', $result);
     }
 
-    public function testeNoNeedToEscape()
+    public function testeNoNeedToEscape(): void
     {
         $this->expectOutputString('script');
         $result = $this->view->e('script');

tests/classes/Container.php

@@ -18,13 +18,13 @@ class Container
         $this->pdoWrapper = $pdoWrapper;
     }
 
-    public function testTheContainer()
+    public function testTheContainer(): void
     {
         $this->collection->whatever = 'yay!';
         echo 'yay! I injected a collection, and it has ' . $this->collection->count() . ' items';
     }
 
-    public function testThePdoWrapper()
+    public function testThePdoWrapper(): void
     {
         $value = intval($this->pdoWrapper->fetchField('SELECT 5'));
         echo 'Yay! I injected a PdoWrapper, and it returned the number ' . $value . ' from the database!';

tests/classes/ContainerDefault.php

@@ -15,22 +15,23 @@ class ContainerDefault
         $this->app = $engine;
     }
 
-    public function before(array $params)
+    public function before(array $params): void
     {
         echo 'I returned before the route was called with the following parameters: ' . json_encode($params);
     }
 
+    /** @return mixed */
     public function testTheContainer()
     {
         return $this->app->get('test_me_out');
     }
 
-    public function echoTheContainer()
+    public function echoTheContainer(): void
     {
         echo $this->app->get('test_me_out');
     }
 
-    public function testUi()
+    public function testUi(): void
     {
         echo '<span id="infotext">Route text:</span> The container successfully injected a value into the engine! Engine class: <b>' . get_class($this->app) . '</b>  test_me_out Value: <b>' . $this->app->get('test_me_out') . '</b>';
     }

tests/classes/Factory.php

@@ -11,7 +11,7 @@ class Factory
     {
     }
 
-    public static function create()
+    public static function create(): self
     {
         return new self();
     }

tests/commands/ControllerCommandTest.php

@@ -53,7 +53,7 @@ class ControllerCommandTest extends TestCase
         return @$app->io(new Interactor(static::$in, static::$ou));
     }
 
-    public function testConfigAppRootNotSet()
+    public function testConfigAppRootNotSet(): void
     {
         $app = $this->newApp('test', '0.0.1');
         $app->add(new ControllerCommand([]));
@@ -62,7 +62,7 @@ class ControllerCommandTest extends TestCase
         $this->assertStringContainsString('app_root not set in .runway-config.json', file_get_contents(static::$ou));
     }
 
-    public function testControllerAlreadyExists()
+    public function testControllerAlreadyExists(): void
     {
         $app = $this->newApp('test', '0.0.1');
         mkdir(__DIR__ . '/controllers/');
@@ -73,7 +73,7 @@ class ControllerCommandTest extends TestCase
         $this->assertStringContainsString('TestController already exists.', file_get_contents(static::$ou));
     }
 
-    public function testCreateController()
+    public function testCreateController(): void
     {
         $app = $this->newApp('test', '0.0.1');
         $app->add(new ControllerCommand(['app_root' => 'tests/commands/']));

tests/commands/RouteCommandTest.php

@@ -59,7 +59,7 @@ class RouteCommandTest extends TestCase
         return $app->io(new Interactor(static::$in, static::$ou));
     }
 
-    protected function createIndexFile()
+    protected function createIndexFile(): void
     {
         $index = <<<'PHP'
 <?php
@@ -88,7 +88,7 @@ PHP;
         return preg_replace('/\e\[[\d;]*m/', '', $str);
     }
 
-    public function testConfigIndexRootNotSet()
+    public function testConfigIndexRootNotSet(): void
     {
         $app = @$this->newApp('test', '0.0.1');
         $app->add(new RouteCommand([]));
@@ -97,7 +97,7 @@ PHP;
         $this->assertStringContainsString('index_root not set in .runway-config.json', file_get_contents(static::$ou));
     }
 
-    public function testGetRoutes()
+    public function testGetRoutes(): void
     {
         $app = @$this->newApp('test', '0.0.1');
         $this->createIndexFile();
@@ -123,7 +123,7 @@ PHP;
         );
     }
 
-    public function testGetPostRoute()
+    public function testGetPostRoute(): void
     {
         $app = @$this->newApp('test', '0.0.1');
         $this->createIndexFile();

tests/server-v2/index.php

@@ -79,7 +79,7 @@ Flight::route('/alias', function () {
 }, false, 'aliasroute');
 class AuthCheck
 {
-    public function before()
+    public function before(): void
     {
         if (!isset($_COOKIE['user'])) {
             echo '<span id="infotext">Middleware text:</span> You are not authorized to access this route!';

tests/server/AuthCheck.php

@@ -4,12 +4,7 @@ declare(strict_types=1);
 
 class AuthCheck
 {
-    /**
+    public function before(): void
-     * Before
-     *
-     * @return void
-     */
-    public function before()
     {
         if (!isset($_COOKIE['user'])) {
             echo '<span id="infotext">Middleware text:</span> You are not authorized to access this route!';

tests/server/LayoutMiddleware.php

@@ -4,12 +4,7 @@ declare(strict_types=1);
 
 class LayoutMiddleware
 {
-    /**
+    public function before(): void
-     * Before
-     *
-     * @return void
-     */
-    public function before()
     {
         $final_route = Flight::getUrl('final_group');
         echo <<<HTML
@@ -93,7 +88,7 @@ HTML;
         echo '<div id="container">';
     }
 
-    public function after()
+    public function after(): void
     {
         echo '</div>';
         echo '<div id="debugrequest">';

tests/server/OverwriteBodyMiddleware.php

@@ -4,7 +4,7 @@ declare(strict_types=1);
 
 class OverwriteBodyMiddleware
 {
-    public function after()
+    public function after(): void
     {
         $response = Flight::response();
         $response->write(str_replace('<span style="color:red; font-weight: bold;">failed</span>', '<span style="color:green; font-weight: bold;">successfully works!</span>', $response->getBody()), true);