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

<?php
namespace GuzzleHttp\Promise\Tests;

use GuzzleHttp\Promise\Promise;
use GuzzleHttp\Promise\RejectedPromise;

/**
 * @covers GuzzleHttp\Promise\RejectedPromise
 */
class RejectedPromiseTest extends \PHPUnit_Framework_TestCase
{
    public function testThrowsReasonWhenWaitedUpon()
    {
        $p = new RejectedPromise('foo');
        $this->assertEquals('rejected', $p->getState());
        try {
            $p->wait(true);
            $this->fail();
        } catch (\Exception $e) {
            $this->assertEquals('rejected', $p->getState());
            $this->assertContains('foo', $e->getMessage());
        }
    }

    public function testCannotCancel()
    {
        $p = new RejectedPromise('foo');
        $p->cancel();
        $this->assertEquals('rejected', $p->getState());
    }

    /**
     * @expectedException \LogicException
     * @exepctedExceptionMessage Cannot resolve a rejected promise
     */
    public function testCannotResolve()
    {
        $p = new RejectedPromise('foo');
        $p->resolve('bar');
    }

    /**
     * @expectedException \LogicException
     * @exepctedExceptionMessage Cannot reject a rejected promise
     */
    public function testCannotReject()
    {
        $p = new RejectedPromise('foo');
        $p->reject('bar');
    }

    public function testCanRejectWithSameValue()
    {
        $p = new RejectedPromise('foo');
        $p->reject('foo');
    }

    public function testThrowsSpecificException()
    {
        $e = new \Exception();
        $p = new RejectedPromise($e);
        try {
            $p->wait(true);
            $this->fail();
        } catch (\Exception $e2) {
            $this->assertSame($e, $e2);
        }
    }

    /**
     * @expectedException \InvalidArgumentException
     */
    public function testCannotResolveWithPromise()
    {
        new RejectedPromise(new Promise());
    }

    public function testReturnsSelfWhenNoOnReject()
    {
        $p = new RejectedPromise('a');
        $this->assertSame($p, $p->then());
    }

    public function testInvokesOnRejectedAsynchronously()
    {
        $p = new RejectedPromise('a');
        $r = null;
        $f = function ($reason) use (&$r) { $r = $reason; };
        $p->then(null, $f);
        $this->assertNull($r);
        \GuzzleHttp\Promise\queue()->run();
        $this->assertEquals('a', $r);
    }

    public function testReturnsNewRejectedWhenOnRejectedFails()
    {
        $p = new RejectedPromise('a');
        $f = function () { throw new \Exception('b'); };
        $p2 = $p->then(null, $f);
        $this->assertNotSame($p, $p2);
        try {
            $p2->wait();
            $this->fail();
        } catch (\Exception $e) {
            $this->assertEquals('b', $e->getMessage());
        }
    }

    public function testWaitingIsNoOp()
    {
        $p = new RejectedPromise('a');
        $p->wait(false);
    }

    public function testOtherwiseIsSugarForRejections()
    {
        $p = new RejectedPromise('foo');
        $p->otherwise(function ($v) use (&$c) { $c = $v; });
        \GuzzleHttp\Promise\queue()->run();
        $this->assertSame('foo', $c);
    }

    public function testCanResolveThenWithSuccess()
    {
        $actual = null;
        $p = new RejectedPromise('foo');
        $p->otherwise(function ($v) {
            return $v . ' bar';
        })->then(function ($v) use (&$actual) {
            $actual = $v;
        });
        \GuzzleHttp\Promise\queue()->run();
        $this->assertEquals('foo bar', $actual);
    }

    public function testDoesNotTryToRejectTwiceDuringTrampoline()
    {
        $fp = new RejectedPromise('a');
        $t1 = $fp->then(null, function ($v) { return $v . ' b'; });
        $t1->resolve('why!');
        $this->assertEquals('why!', $t1->wait());
    }
}