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'use strict'
var test = require('tape')
var supports = require('..')
var shape = require('./shape')
var cloneable = require('./cloneable')
test('no options', function (t) {
shape(t, supports())
cloneable(t, supports())
t.end()
})
test('falsy options', function (t) {
;[null, false, undefined, 0, ''].forEach(function (value) {
var manifest = supports({
bufferKeys: value,
additionalMethods: {
foo: value
}
})
shape(t, manifest)
t.is(manifest.bufferKeys, false)
})
t.end()
})
test('truthy options', function (t) {
;[true, {}, 'yes', 1, []].forEach(function (value) {
var manifest = supports({
streams: value,
additionalMethods: {
foo: value
}
})
shape(t, manifest)
t.same(manifest.streams, value)
t.same(manifest.additionalMethods.foo, value)
})
t.end()
})
test('merges input objects without mutating them', function (t) {
var input1 = { bufferKeys: null, streams: false }
var input2 = { streams: true, additionalMethods: {} }
var manifest = supports(input1, input2)
manifest.foobar = true
manifest.additionalMethods.baz = true
t.same(input1, { bufferKeys: null, streams: false })
t.same(input2, { streams: true, additionalMethods: {} })
t.is(manifest.bufferKeys, false)
t.is(manifest.streams, true)
shape(t, manifest)
t.end()
})
test('inherits additionalMethods', function (t) {
var manifest = supports({ additionalMethods: { foo: true } }, {})
t.same(manifest.additionalMethods, { foo: true })
t.end()
})
test('does not merge additionalMethods', function (t) {
var input1 = { additionalMethods: { foo: true } }
var input2 = { additionalMethods: { bar: true } }
var manifest = supports(input1, input2)
t.same(manifest.additionalMethods, { bar: true })
t.end()
})