wp-stateless / lib / Google / vendor / react / promise / tests / LazyPromiseTest.php

LazyPromiseTest.php in WP-Stateless – Google Cloud Storage 2.1.4, at lib/Google/vendor/react/promise/tests/LazyPromiseTest.php

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1	<?php
2
3	namespace React\Promise;
4
5	use React\Promise\PromiseAdapter\CallbackPromiseAdapter;
6
7	class LazyPromiseTest extends TestCase
8	{
9	use PromiseTest\FullTestTrait;
10
11	public function getPromiseTestAdapter(callable $canceller = null)
12	{
13	$d = new Deferred($canceller);
14
15	$factory = function () use ($d) {
16	return $d->promise();
17	};
18
19	return new CallbackPromiseAdapter([
20	'promise' => function () use ($factory) {
21	return new LazyPromise($factory);
22	},
23	'resolve' => [$d, 'resolve'],
24	'reject' => [$d, 'reject'],
25	'notify' => [$d, 'progress'],
26	'settle' => [$d, 'resolve'],
27	]);
28	}
29
30	/** @test */
31	public function shouldNotCallFactoryIfThenIsNotInvoked()
32	{
33	$factory = $this->createCallableMock();
34	$factory
35	->expects($this->never())
36	->method('__invoke');
37
38	new LazyPromise($factory);
39	}
40
41	/** @test */
42	public function shouldCallFactoryIfThenIsInvoked()
43	{
44	$factory = $this->createCallableMock();
45	$factory
46	->expects($this->once())
47	->method('__invoke');
48
49	$p = new LazyPromise($factory);
50	$p->then();
51	}
52
53	/** @test */
54	public function shouldReturnPromiseFromFactory()
55	{
56	$factory = $this->createCallableMock();
57	$factory
58	->expects($this->once())
59	->method('__invoke')
60	->will($this->returnValue(new FulfilledPromise(1)));
61
62	$onFulfilled = $this->createCallableMock();
63	$onFulfilled
64	->expects($this->once())
65	->method('__invoke')
66	->with($this->identicalTo(1));
67
68	$p = new LazyPromise($factory);
69
70	$p->then($onFulfilled);
71	}
72
73	/** @test */
74	public function shouldReturnPromiseIfFactoryReturnsNull()
75	{
76	$factory = $this->createCallableMock();
77	$factory
78	->expects($this->once())
79	->method('__invoke')
80	->will($this->returnValue(null));
81
82	$p = new LazyPromise($factory);
83	$this->assertInstanceOf('React\\Promise\\PromiseInterface', $p->then());
84	}
85
86	/** @test */
87	public function shouldReturnRejectedPromiseIfFactoryThrowsException()
88	{
89	$exception = new \Exception();
90
91	$factory = $this->createCallableMock();
92	$factory
93	->expects($this->once())
94	->method('__invoke')
95	->will($this->throwException($exception));
96
97	$onRejected = $this->createCallableMock();
98	$onRejected
99	->expects($this->once())
100	->method('__invoke')
101	->with($this->identicalTo($exception));
102
103	$p = new LazyPromise($factory);
104
105	$p->then($this->expectCallableNever(), $onRejected);
106	}
107	}
108