|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace JVelasco\CircuitBreaker\AvailabilityStrategy; |
|
4
|
|
|
|
|
5
|
|
|
use JVelasco\CircuitBreaker\AvailabilityStrategy\Backoff\Fixed; |
|
6
|
|
|
use PHPUnit\Framework\TestCase; |
|
7
|
|
|
use Prophecy\Argument; |
|
8
|
|
|
|
|
9
|
|
|
final class TimeBackoffTest extends TestCase |
|
10
|
|
|
{ |
|
11
|
|
|
const SERVICE_NAME = 'service name'; |
|
12
|
|
|
const MAX_FAILURES = 1; |
|
13
|
|
|
const ONE_SECOND = 1000; |
|
14
|
|
|
const LAST_ATTEMPT_KEY = "last_attempt"; |
|
15
|
|
|
|
|
16
|
|
|
/** @test */ |
|
17
|
|
|
public function it_report_as_available_when_failures_is_under_threshold() |
|
18
|
|
|
{ |
|
19
|
|
|
$storage = new InMemoryStorage(); |
|
20
|
|
|
$backoffStrategy = $this->prophesize(BackoffStrategy::class); |
|
21
|
|
|
$strategy = new TimeBackoff( |
|
22
|
|
|
$storage, |
|
23
|
|
|
$backoffStrategy->reveal(), |
|
24
|
|
|
self::MAX_FAILURES, |
|
25
|
|
|
self::ONE_SECOND |
|
26
|
|
|
); |
|
27
|
|
|
|
|
28
|
|
|
$storage->setNumberOfFailures(self::SERVICE_NAME, self::MAX_FAILURES- self::MAX_FAILURES); |
|
29
|
|
|
$this->assertTrue($strategy->isAvailable(self::SERVICE_NAME)); |
|
30
|
|
|
} |
|
31
|
|
|
|
|
32
|
|
|
/** @test */ |
|
33
|
|
|
public function it_reports_as_non_available_between_attempts() |
|
34
|
|
|
{ |
|
35
|
|
|
$storage = new InMemoryStorage();; |
|
36
|
|
|
$backoffStrategy = $this->prophesize(BackoffStrategy::class); |
|
37
|
|
|
$strategy = new TimeBackoff( |
|
38
|
|
|
$storage, |
|
39
|
|
|
$backoffStrategy->reveal(), |
|
40
|
|
|
self::MAX_FAILURES, |
|
41
|
|
|
self::ONE_SECOND |
|
42
|
|
|
); |
|
43
|
|
|
|
|
44
|
|
|
$backoffStrategy->id()->willReturn("test"); |
|
45
|
|
|
$storage->saveStrategyData( |
|
46
|
|
|
$strategy, |
|
47
|
|
|
self::SERVICE_NAME, |
|
48
|
|
|
self::LAST_ATTEMPT_KEY, |
|
49
|
|
|
floor(microtime(true) * 1000) |
|
50
|
|
|
); |
|
51
|
|
|
$storage->setNumberOfFailures(self::SERVICE_NAME, self::MAX_FAILURES); |
|
52
|
|
|
$backoffStrategy->waitTime(Argument::any(), self::ONE_SECOND)->willReturn(100); |
|
53
|
|
|
$this->assertFalse($strategy->isAvailable(self::SERVICE_NAME)); |
|
54
|
|
|
} |
|
55
|
|
|
|
|
56
|
|
|
/** @test */ |
|
57
|
|
|
public function it_closes_the_circuit_after_timeout() |
|
58
|
|
|
{ |
|
59
|
|
|
$storage = new InMemoryStorage(); |
|
60
|
|
|
$strategy = new TimeBackoff( |
|
61
|
|
|
$storage, |
|
62
|
|
|
new Fixed(), |
|
63
|
|
|
0, |
|
64
|
|
|
0 |
|
65
|
|
|
); |
|
66
|
|
|
|
|
67
|
|
|
$storage->setNumberOfFailures(self::SERVICE_NAME, self::MAX_FAILURES); |
|
68
|
|
|
$oneSecAndOneMillisecond = floor((microtime(true) * 1000)) - 1001; |
|
69
|
|
|
$storage->saveStrategyData( |
|
70
|
|
|
$strategy, |
|
71
|
|
|
self::SERVICE_NAME, |
|
72
|
|
|
self::LAST_ATTEMPT_KEY, |
|
73
|
|
|
(string) $oneSecAndOneMillisecond |
|
74
|
|
|
); |
|
75
|
|
|
|
|
76
|
|
|
$this->assertTrue($strategy->isAvailable(self::SERVICE_NAME)); |
|
77
|
|
|
$this->assertEquals(0, $storage->numberOfFailures(self::SERVICE_NAME)); |
|
78
|
|
|
} |
|
79
|
|
|
|
|
80
|
|
|
/** @test */ |
|
81
|
|
|
public function it_reports_as_available_on_storage_failures() |
|
82
|
|
|
{ |
|
83
|
|
|
$storage = new InMemoryStorage(); |
|
84
|
|
|
$strategy = new TimeBackoff( |
|
85
|
|
|
$storage, |
|
86
|
|
|
$this->prophesize(BackoffStrategy::class)->reveal(), |
|
87
|
|
|
self::MAX_FAILURES, |
|
88
|
|
|
self::ONE_SECOND |
|
89
|
|
|
); |
|
90
|
|
|
|
|
91
|
|
|
$storage->throwExceptionInNumberOfFailures(); |
|
92
|
|
|
$this->assertTrue($strategy->isAvailable(self::SERVICE_NAME)); |
|
93
|
|
|
} |
|
94
|
|
|
|
|
95
|
|
|
|
|
96
|
|
|
/** @test */ |
|
97
|
|
|
public function it_tracks_attempts() |
|
98
|
|
|
{ |
|
99
|
|
|
$storage = new InMemoryStorage(); |
|
100
|
|
|
$backoffStrategy = $this->prophesize(BackoffStrategy::class); |
|
101
|
|
|
$strategy = new TimeBackoff( |
|
102
|
|
|
$storage, |
|
103
|
|
|
$backoffStrategy->reveal(), |
|
104
|
|
|
self::MAX_FAILURES, |
|
105
|
|
|
self::ONE_SECOND |
|
106
|
|
|
); |
|
107
|
|
|
|
|
108
|
|
|
$storage->setNumberOfFailures(self::SERVICE_NAME, self::MAX_FAILURES); |
|
109
|
|
|
$backoffStrategy->id()->willReturn("test"); |
|
110
|
|
|
$backoffStrategy->waitTime(Argument::any(), Argument::any())->willReturn(0); |
|
111
|
|
|
|
|
112
|
|
|
$storage->saveStrategyData( |
|
113
|
|
|
$strategy, |
|
114
|
|
|
self::SERVICE_NAME, |
|
115
|
|
|
self::LAST_ATTEMPT_KEY, |
|
116
|
|
|
floor(microtime(true) * 1000) - self::ONE_SECOND); |
|
117
|
|
|
|
|
118
|
|
|
$strategy->isAvailable(self::SERVICE_NAME); |
|
119
|
|
|
$this->assertEquals(1, $storage->getStrategyData($strategy, self::SERVICE_NAME, "attempts")); |
|
120
|
|
|
|
|
121
|
|
|
$storage->setNumberOfFailures(self::SERVICE_NAME, self::MAX_FAILURES); |
|
122
|
|
|
$storage->saveStrategyData( |
|
123
|
|
|
$strategy, |
|
124
|
|
|
self::SERVICE_NAME, |
|
125
|
|
|
self::LAST_ATTEMPT_KEY, |
|
126
|
|
|
floor(microtime(true) * 1000) - self::ONE_SECOND); |
|
127
|
|
|
$strategy->isAvailable(self::SERVICE_NAME); |
|
128
|
|
|
$this->assertEquals(2, $storage->getStrategyData($strategy, self::SERVICE_NAME, "attempts")); |
|
129
|
|
|
} |
|
130
|
|
|
} |
|
131
|
|
|
|
j-velasco /
php-circuit-breaker
