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'use strict'
var test = require('tap').test
const serializer = require('../lib/err')
var wrapErrorSerializer = require('../').wrapErrorSerializer
test('serializes Error objects', function (t) {
t.plan(3)
var serialized = serializer(Error('foo'))
t.is(serialized.type, 'Error')
t.is(serialized.message, 'foo')
t.match(serialized.stack, /err\.test\.js:/)
})
test('serializes Error objects with extra properties', function (t) {
t.plan(5)
var err = Error('foo')
err.statusCode = 500
var serialized = serializer(err)
t.is(serialized.type, 'Error')
t.is(serialized.message, 'foo')
t.ok(serialized.statusCode)
t.is(serialized.statusCode, 500)
t.match(serialized.stack, /err\.test\.js:/)
})
test('serializes nested errors', function (t) {
t.plan(7)
var err = Error('foo')
err.inner = Error('bar')
var serialized = serializer(err)
t.is(serialized.type, 'Error')
t.is(serialized.message, 'foo')
t.match(serialized.stack, /err\.test\.js:/)
t.is(serialized.inner.type, 'Error')
t.is(serialized.inner.message, 'bar')
t.match(serialized.inner.stack, /Error: bar/)
t.match(serialized.inner.stack, /err\.test\.js:/)
})
test('prevents infinite recursion', function (t) {
t.plan(4)
var err = Error('foo')
err.inner = err
var serialized = serializer(err)
t.is(serialized.type, 'Error')
t.is(serialized.message, 'foo')
t.match(serialized.stack, /err\.test\.js:/)
t.notOk(serialized.inner)
})
test('cleans up infinite recursion tracking', function (t) {
t.plan(8)
var err = Error('foo')
var bar = Error('bar')
err.inner = bar
bar.inner = err
serializer(err)
var serialized = serializer(err)
t.is(serialized.type, 'Error')
t.is(serialized.message, 'foo')
t.match(serialized.stack, /err\.test\.js:/)
t.ok(serialized.inner)
t.is(serialized.inner.type, 'Error')
t.is(serialized.inner.message, 'bar')
t.match(serialized.inner.stack, /Error: bar/)
t.notOk(serialized.inner.inner)
})
test('err.raw is available', function (t) {
t.plan(1)
const err = Error('foo')
const serialized = serializer(err)
t.equal(serialized.raw, err)
})
test('pass through anything that is not an Error', function (t) {
t.plan(3)
function check (a) {
t.is(serializer(a), a)
}
check('foo')
check({ hello: 'world' })
check([1, 2])
})
test('can wrap err serializers', function (t) {
t.plan(5)
var err = Error('foo')
err.foo = 'foo'
var serializer = wrapErrorSerializer(function (err) {
delete err.foo
err.bar = 'bar'
return err
})
var serialized = serializer(err)
t.is(serialized.type, 'Error')
t.is(serialized.message, 'foo')
t.match(serialized.stack, /err\.test\.js:/)
t.notOk(serialized.foo)
t.is(serialized.bar, 'bar')
})