promise/tests/FunctionAllTest.php at 3.x · reactphp/promise · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
<?php

namespace React\Promise;

use Exception;

class FunctionAllTest extends TestCase
{
    /** @test */
    public function shouldResolveEmptyInput(): void
    {
        $mock = $this->createCallableMock();
        $mock
            ->expects(self::once())
            ->method('__invoke')
            ->with(self::identicalTo([]));

        all([])
            ->then($mock);
    }

    /** @test */
    public function shouldResolveValuesArray(): void
    {
        $mock = $this->createCallableMock();
        $mock
            ->expects(self::once())
            ->method('__invoke')
            ->with(self::identicalTo([1, 2, 3]));

        all([1, 2, 3])
            ->then($mock);
    }

    /** @test */
    public function shouldResolvePromisesArray(): void
    {
        $mock = $this->createCallableMock();
        $mock
            ->expects(self::once())
            ->method('__invoke')
            ->with(self::identicalTo([1, 2, 3]));

        all([resolve(1), resolve(2), resolve(3)])
            ->then($mock);
    }

    /** @test */
    public function shouldResolveSparseArrayInput(): void
    {
        $mock = $this->createCallableMock();
        $mock
            ->expects(self::once())
            ->method('__invoke')
            ->with(self::identicalTo([null, 1, null, 1, 1]));

        all([null, 1, null, 1, 1])
            ->then($mock);
    }

    /** @test */
    public function shouldResolveValuesGenerator(): void
    {
        $mock = $this->createCallableMock();
        $mock
            ->expects(self::once())
            ->method('__invoke')
            ->with(self::identicalTo([1, 2, 3]));

        $gen = (function () {
            for ($i = 1; $i <= 3; ++$i) {
                yield $i;
            }
        })();

        all($gen)->then($mock);
    }

    /** @test */
    public function shouldResolveValuesGeneratorEmpty(): void
    {
        $mock = $this->createCallableMock();
        $mock
            ->expects(self::once())
            ->method('__invoke')
            ->with(self::identicalTo([]));

        $gen = (function () {
            if (false) { // @phpstan-ignore-line
                yield;
            }
        })();

        all($gen)->then($mock);
    }

    /** @test */
    public function shouldRejectIfAnyInputPromiseRejects(): void
    {
        $exception2 = new Exception();
        $exception3 = new Exception();

        $mock = $this->createCallableMock();
        $mock
            ->expects(self::once())
            ->method('__invoke')
            ->with(self::identicalTo($exception2));

        all([resolve(1), reject($exception2), reject($exception3)])
            ->then($this->expectCallableNever(), $mock);
    }

    /** @test */
    public function shouldRejectInfiteGeneratorOrRejectedPromises(): void
    {
        $mock = $this->createCallableMock();
        $mock
            ->expects(self::once())
            ->method('__invoke')
            ->with(new \RuntimeException('Iteration 1'));

        $gen = (function () {
            for ($i = 1; ; ++$i) {
                yield reject(new \RuntimeException('Iteration ' . $i));
            }
        })();

        all($gen)->then(null, $mock);
    }

    /** @test */
    public function shouldPreserveTheOrderOfArrayWhenResolvingAsyncPromises(): void
    {
        $mock = $this->createCallableMock();
        $mock
            ->expects(self::once())
            ->method('__invoke')
            ->with(self::identicalTo([1, 2, 3]));

        $deferred = new Deferred();

        all([resolve(1), $deferred->promise(), resolve(3)])
            ->then($mock);

        $deferred->resolve(2);
    }
}