| 1 |
<?php |
| 2 |
namespace GuzzleHttp\Promise\Tests; |
| 3 |
|
| 4 |
use GuzzleHttp\Promise as P; |
| 5 |
use GuzzleHttp\Promise\AggregateException; |
| 6 |
use GuzzleHttp\Promise\FulfilledPromise; |
| 7 |
use GuzzleHttp\Promise\Promise; |
| 8 |
use GuzzleHttp\Promise\PromiseInterface; |
| 9 |
use GuzzleHttp\Promise\RejectedPromise; |
| 10 |
use GuzzleHttp\Promise\RejectionException; |
| 11 |
use GuzzleHttp\Promise\TaskQueue; |
| 12 |
use PHPUnit\Framework\TestCase; |
| 13 |
|
| 14 |
class FunctionsTest extends TestCase |
| 15 |
{ |
| 16 |
public function testCreatesPromiseForValue() |
| 17 |
{ |
| 18 |
$p = P\promise_for('foo'); |
| 19 |
$this->assertInstanceOf(FulfilledPromise::class, $p); |
| 20 |
} |
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|
| 22 |
public function testReturnsPromiseForPromise() |
| 23 |
{ |
| 24 |
$p = new Promise(); |
| 25 |
$this->assertSame($p, P\promise_for($p)); |
| 26 |
} |
| 27 |
|
| 28 |
public function testReturnsPromiseForThennable() |
| 29 |
{ |
| 30 |
$p = new Thennable(); |
| 31 |
$wrapped = P\promise_for($p); |
| 32 |
$this->assertNotSame($p, $wrapped); |
| 33 |
$this->assertInstanceOf(PromiseInterface::class, $wrapped); |
| 34 |
$p->resolve('foo'); |
| 35 |
P\queue()->run(); |
| 36 |
$this->assertEquals('foo', $wrapped->wait()); |
| 37 |
} |
| 38 |
|
| 39 |
public function testReturnsRejection() |
| 40 |
{ |
| 41 |
$p = P\rejection_for('fail'); |
| 42 |
$this->assertInstanceOf(RejectedPromise::class, $p); |
| 43 |
$this->assertEquals('fail', $this->readAttribute($p, 'reason')); |
| 44 |
} |
| 45 |
|
| 46 |
public function testReturnsPromisesAsIsInRejectionFor() |
| 47 |
{ |
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$a = new Promise(); |
| 49 |
$b = P\rejection_for($a); |
| 50 |
$this->assertSame($a, $b); |
| 51 |
} |
| 52 |
|
| 53 |
public function testWaitsOnAllPromisesIntoArray() |
| 54 |
{ |
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$e = new \Exception(); |
| 56 |
$a = new Promise(function () use (&$a) { $a->resolve('a'); }); |
| 57 |
$b = new Promise(function () use (&$b) { $b->reject('b'); }); |
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$c = new Promise(function () use (&$c, $e) { $c->reject($e); }); |
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$results = P\inspect_all([$a, $b, $c]); |
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$this->assertEquals([ |
| 61 |
['state' => 'fulfilled', 'value' => 'a'], |
| 62 |
['state' => 'rejected', 'reason' => 'b'], |
| 63 |
['state' => 'rejected', 'reason' => $e] |
| 64 |
], $results); |
| 65 |
} |
| 66 |
|
| 67 |
/** |
| 68 |
* @expectedException \GuzzleHttp\Promise\RejectionException |
| 69 |
*/ |
| 70 |
public function testUnwrapsPromisesWithNoDefaultAndFailure() |
| 71 |
{ |
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$promises = [new FulfilledPromise('a'), new Promise()]; |
| 73 |
P\unwrap($promises); |
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} |
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|
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public function testUnwrapsPromisesWithNoDefault() |
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{ |
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$promises = [new FulfilledPromise('a')]; |
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$this->assertEquals(['a'], P\unwrap($promises)); |
| 80 |
} |
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|
| 82 |
public function testUnwrapsPromisesWithKeys() |
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{ |
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$promises = [ |
| 85 |
'foo' => new FulfilledPromise('a'), |
| 86 |
'bar' => new FulfilledPromise('b'), |
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]; |
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$this->assertEquals([ |
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'foo' => 'a', |
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'bar' => 'b' |
| 91 |
], P\unwrap($promises)); |
| 92 |
} |
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|
| 94 |
public function testAllAggregatesSortedArray() |
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{ |
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$a = new Promise(); |
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$b = new Promise(); |
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$c = new Promise(); |
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$d = P\all([$a, $b, $c]); |
| 100 |
$b->resolve('b'); |
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$a->resolve('a'); |
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$c->resolve('c'); |
| 103 |
$d->then( |
| 104 |
function ($value) use (&$result) { $result = $value; }, |
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function ($reason) use (&$result) { $result = $reason; } |
| 106 |
); |
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P\queue()->run(); |
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$this->assertEquals(['a', 'b', 'c'], $result); |
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} |
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|
| 111 |
public function testPromisesDynamicallyAddedToStack() |
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{ |
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$promises = new \ArrayIterator(); |
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$counter = 0; |
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$promises['a'] = new FulfilledPromise('a'); |
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$promises['b'] = $promise = new Promise(function () use (&$promise, &$promises, &$counter) { |
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$counter++; // Make sure the wait function is called only once |
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$promise->resolve('b'); |
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$promises['c'] = $subPromise = new Promise(function () use (&$subPromise) { |
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$subPromise->resolve('c'); |
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}); |
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}); |
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$result = P\all($promises, true)->wait(); |
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$this->assertCount(3, $promises); |
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$this->assertCount(3, $result); |
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$this->assertEquals($result['c'], 'c'); |
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$this->assertSame(1, $counter); |
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} |
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|
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public function testAllThrowsWhenAnyRejected() |
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{ |
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$a = new Promise(); |
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$b = new Promise(); |
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$c = new Promise(); |
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$d = P\all([$a, $b, $c]); |
| 136 |
$b->resolve('b'); |
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$a->reject('fail'); |
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$c->resolve('c'); |
| 139 |
$d->then( |
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function ($value) use (&$result) { $result = $value; }, |
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function ($reason) use (&$result) { $result = $reason; } |
| 142 |
); |
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P\queue()->run(); |
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$this->assertEquals('fail', $result); |
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} |
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|
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public function testSomeAggregatesSortedArrayWithMax() |
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{ |
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$a = new Promise(); |
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$b = new Promise(); |
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$c = new Promise(); |
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$d = P\some(2, [$a, $b, $c]); |
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$b->resolve('b'); |
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$c->resolve('c'); |
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$a->resolve('a'); |
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$d->then(function ($value) use (&$result) { $result = $value; }); |
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P\queue()->run(); |
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$this->assertEquals(['b', 'c'], $result); |
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} |
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|
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public function testSomeRejectsWhenTooManyRejections() |
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{ |
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$a = new Promise(); |
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$b = new Promise(); |
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$d = P\some(2, [$a, $b]); |
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$a->reject('bad'); |
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$b->resolve('good'); |
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P\queue()->run(); |
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$this->assertEquals($a::REJECTED, $d->getState()); |
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$d->then(null, function ($reason) use (&$called) { |
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$called = $reason; |
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}); |
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P\queue()->run(); |
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$this->assertInstanceOf(AggregateException::class, $called); |
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$this->assertContains('bad', $called->getReason()); |
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} |
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|
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public function testCanWaitUntilSomeCountIsSatisfied() |
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{ |
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$a = new Promise(function () use (&$a) { $a->resolve('a'); }); |
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$b = new Promise(function () use (&$b) { $b->resolve('b'); }); |
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$c = new Promise(function () use (&$c) { $c->resolve('c'); }); |
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$d = P\some(2, [$a, $b, $c]); |
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$this->assertEquals(['a', 'b'], $d->wait()); |
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} |
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|
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/** |
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* @expectedException \GuzzleHttp\Promise\AggregateException |
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* @expectedExceptionMessage Not enough promises to fulfill count |
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*/ |
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public function testThrowsIfImpossibleToWaitForSomeCount() |
| 192 |
{ |
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$a = new Promise(function () use (&$a) { $a->resolve('a'); }); |
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$d = P\some(2, [$a]); |
| 195 |
$d->wait(); |
| 196 |
} |
| 197 |
|
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/** |
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* @expectedException \GuzzleHttp\Promise\AggregateException |
| 200 |
* @expectedExceptionMessage Not enough promises to fulfill count |
| 201 |
*/ |
| 202 |
public function testThrowsIfResolvedWithoutCountTotalResults() |
| 203 |
{ |
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$a = new Promise(); |
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$b = new Promise(); |
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$d = P\some(3, [$a, $b]); |
| 207 |
$a->resolve('a'); |
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$b->resolve('b'); |
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$d->wait(); |
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} |
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|
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public function testAnyReturnsFirstMatch() |
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{ |
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$a = new Promise(); |
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$b = new Promise(); |
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$c = P\any([$a, $b]); |
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$b->resolve('b'); |
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$a->resolve('a'); |
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//P\queue()->run(); |
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//$this->assertEquals('fulfilled', $c->getState()); |
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$c->then(function ($value) use (&$result) { $result = $value; }); |
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P\queue()->run(); |
| 223 |
$this->assertEquals('b', $result); |
| 224 |
} |
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|
| 226 |
public function testSettleFulfillsWithFulfilledAndRejected() |
| 227 |
{ |
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$a = new Promise(); |
| 229 |
$b = new Promise(); |
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$c = new Promise(); |
| 231 |
$d = P\settle([$a, $b, $c]); |
| 232 |
$b->resolve('b'); |
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$c->resolve('c'); |
| 234 |
$a->reject('a'); |
| 235 |
P\queue()->run(); |
| 236 |
$this->assertEquals('fulfilled', $d->getState()); |
| 237 |
$d->then(function ($value) use (&$result) { $result = $value; }); |
| 238 |
P\queue()->run(); |
| 239 |
$this->assertEquals([ |
| 240 |
['state' => 'rejected', 'reason' => 'a'], |
| 241 |
['state' => 'fulfilled', 'value' => 'b'], |
| 242 |
['state' => 'fulfilled', 'value' => 'c'] |
| 243 |
], $result); |
| 244 |
} |
| 245 |
|
| 246 |
public function testCanInspectFulfilledPromise() |
| 247 |
{ |
| 248 |
$p = new FulfilledPromise('foo'); |
| 249 |
$this->assertEquals([ |
| 250 |
'state' => 'fulfilled', |
| 251 |
'value' => 'foo' |
| 252 |
], P\inspect($p)); |
| 253 |
} |
| 254 |
|
| 255 |
public function testCanInspectRejectedPromise() |
| 256 |
{ |
| 257 |
$p = new RejectedPromise('foo'); |
| 258 |
$this->assertEquals([ |
| 259 |
'state' => 'rejected', |
| 260 |
'reason' => 'foo' |
| 261 |
], P\inspect($p)); |
| 262 |
} |
| 263 |
|
| 264 |
public function testCanInspectRejectedPromiseWithNormalException() |
| 265 |
{ |
| 266 |
$e = new \Exception('foo'); |
| 267 |
$p = new RejectedPromise($e); |
| 268 |
$this->assertEquals([ |
| 269 |
'state' => 'rejected', |
| 270 |
'reason' => $e |
| 271 |
], P\inspect($p)); |
| 272 |
} |
| 273 |
|
| 274 |
public function testCallsEachLimit() |
| 275 |
{ |
| 276 |
$p = new Promise(); |
| 277 |
$aggregate = P\each_limit($p, 2); |
| 278 |
$p->resolve('a'); |
| 279 |
P\queue()->run(); |
| 280 |
$this->assertEquals($p::FULFILLED, $aggregate->getState()); |
| 281 |
} |
| 282 |
|
| 283 |
public function testEachLimitAllRejectsOnFailure() |
| 284 |
{ |
| 285 |
$p = [new FulfilledPromise('a'), new RejectedPromise('b')]; |
| 286 |
$aggregate = P\each_limit_all($p, 2); |
| 287 |
P\queue()->run(); |
| 288 |
$this->assertEquals(PromiseInterface::REJECTED, $aggregate->getState()); |
| 289 |
$result = P\inspect($aggregate); |
| 290 |
$this->assertEquals('b', $result['reason']); |
| 291 |
} |
| 292 |
|
| 293 |
public function testIterForReturnsIterator() |
| 294 |
{ |
| 295 |
$iter = new \ArrayIterator(); |
| 296 |
$this->assertSame($iter, P\iter_for($iter)); |
| 297 |
} |
| 298 |
|
| 299 |
public function testKnowsIfFulfilled() |
| 300 |
{ |
| 301 |
$p = new FulfilledPromise(null); |
| 302 |
$this->assertTrue(P\is_fulfilled($p)); |
| 303 |
$this->assertFalse(P\is_rejected($p)); |
| 304 |
} |
| 305 |
|
| 306 |
public function testKnowsIfRejected() |
| 307 |
{ |
| 308 |
$p = new RejectedPromise(null); |
| 309 |
$this->assertTrue(P\is_rejected($p)); |
| 310 |
$this->assertFalse(P\is_fulfilled($p)); |
| 311 |
} |
| 312 |
|
| 313 |
public function testKnowsIfSettled() |
| 314 |
{ |
| 315 |
$p = new RejectedPromise(null); |
| 316 |
$this->assertTrue(P\is_settled($p)); |
| 317 |
$p = new Promise(); |
| 318 |
$this->assertFalse(P\is_settled($p)); |
| 319 |
} |
| 320 |
|
| 321 |
public function testReturnsTrampoline() |
| 322 |
{ |
| 323 |
$this->assertInstanceOf(TaskQueue::class, P\queue()); |
| 324 |
$this->assertSame(P\queue(), P\queue()); |
| 325 |
} |
| 326 |
|
| 327 |
public function testCanScheduleThunk() |
| 328 |
{ |
| 329 |
$tramp = P\queue(); |
| 330 |
$promise = P\task(function () { return 'Hi!'; }); |
| 331 |
$c = null; |
| 332 |
$promise->then(function ($v) use (&$c) { $c = $v; }); |
| 333 |
$this->assertNull($c); |
| 334 |
$tramp->run(); |
| 335 |
$this->assertEquals('Hi!', $c); |
| 336 |
} |
| 337 |
|
| 338 |
public function testCanScheduleThunkWithRejection() |
| 339 |
{ |
| 340 |
$tramp = P\queue(); |
| 341 |
$promise = P\task(function () { throw new \Exception('Hi!'); }); |
| 342 |
$c = null; |
| 343 |
$promise->otherwise(function ($v) use (&$c) { $c = $v; }); |
| 344 |
$this->assertNull($c); |
| 345 |
$tramp->run(); |
| 346 |
$this->assertEquals('Hi!', $c->getMessage()); |
| 347 |
} |
| 348 |
|
| 349 |
public function testCanScheduleThunkWithWait() |
| 350 |
{ |
| 351 |
$tramp = P\queue(); |
| 352 |
$promise = P\task(function () { return 'a'; }); |
| 353 |
$this->assertEquals('a', $promise->wait()); |
| 354 |
$tramp->run(); |
| 355 |
} |
| 356 |
|
| 357 |
public function testYieldsFromCoroutine() |
| 358 |
{ |
| 359 |
$promise = P\coroutine(function () { |
| 360 |
$value = (yield new FulfilledPromise('a')); |
| 361 |
yield $value . 'b'; |
| 362 |
}); |
| 363 |
$promise->then(function ($value) use (&$result) { $result = $value; }); |
| 364 |
P\queue()->run(); |
| 365 |
$this->assertEquals('ab', $result); |
| 366 |
} |
| 367 |
|
| 368 |
public function testCanCatchExceptionsInCoroutine() |
| 369 |
{ |
| 370 |
$promise = P\coroutine(function () { |
| 371 |
try { |
| 372 |
yield new RejectedPromise('a'); |
| 373 |
$this->fail('Should have thrown into the coroutine!'); |
| 374 |
} catch (RejectionException $e) { |
| 375 |
$value = (yield new FulfilledPromise($e->getReason())); |
| 376 |
yield $value . 'b'; |
| 377 |
} |
| 378 |
}); |
| 379 |
$promise->then(function ($value) use (&$result) { $result = $value; }); |
| 380 |
P\queue()->run(); |
| 381 |
$this->assertEquals(PromiseInterface::FULFILLED, $promise->getState()); |
| 382 |
$this->assertEquals('ab', $result); |
| 383 |
} |
| 384 |
|
| 385 |
public function testRejectsParentExceptionWhenException() |
| 386 |
{ |
| 387 |
$promise = P\coroutine(function () { |
| 388 |
yield new FulfilledPromise(0); |
| 389 |
throw new \Exception('a'); |
| 390 |
}); |
| 391 |
$promise->then( |
| 392 |
function () { $this->fail(); }, |
| 393 |
function ($reason) use (&$result) { $result = $reason; } |
| 394 |
); |
| 395 |
P\queue()->run(); |
| 396 |
$this->assertInstanceOf(\Exception::class, $result); |
| 397 |
$this->assertEquals('a', $result->getMessage()); |
| 398 |
} |
| 399 |
|
| 400 |
public function testCanRejectFromRejectionCallback() |
| 401 |
{ |
| 402 |
$promise = P\coroutine(function () { |
| 403 |
yield new FulfilledPromise(0); |
| 404 |
yield new RejectedPromise('no!'); |
| 405 |
}); |
| 406 |
$promise->then( |
| 407 |
function () { $this->fail(); }, |
| 408 |
function ($reason) use (&$result) { $result = $reason; } |
| 409 |
); |
| 410 |
P\queue()->run(); |
| 411 |
$this->assertInstanceOf(RejectionException::class, $result); |
| 412 |
$this->assertEquals('no!', $result->getReason()); |
| 413 |
} |
| 414 |
|
| 415 |
public function testCanAsyncReject() |
| 416 |
{ |
| 417 |
$rej = new Promise(); |
| 418 |
$promise = P\coroutine(function () use ($rej) { |
| 419 |
yield new FulfilledPromise(0); |
| 420 |
yield $rej; |
| 421 |
}); |
| 422 |
$promise->then( |
| 423 |
function () { $this->fail(); }, |
| 424 |
function ($reason) use (&$result) { $result = $reason; } |
| 425 |
); |
| 426 |
$rej->reject('no!'); |
| 427 |
P\queue()->run(); |
| 428 |
$this->assertInstanceOf(RejectionException::class, $result); |
| 429 |
$this->assertEquals('no!', $result->getReason()); |
| 430 |
} |
| 431 |
|
| 432 |
public function testCanCatchAndThrowOtherException() |
| 433 |
{ |
| 434 |
$promise = P\coroutine(function () { |
| 435 |
try { |
| 436 |
yield new RejectedPromise('a'); |
| 437 |
$this->fail('Should have thrown into the coroutine!'); |
| 438 |
} catch (RejectionException $e) { |
| 439 |
throw new \Exception('foo'); |
| 440 |
} |
| 441 |
}); |
| 442 |
$promise->otherwise(function ($value) use (&$result) { $result = $value; }); |
| 443 |
P\queue()->run(); |
| 444 |
$this->assertEquals(PromiseInterface::REJECTED, $promise->getState()); |
| 445 |
$this->assertContains('foo', $result->getMessage()); |
| 446 |
} |
| 447 |
|
| 448 |
public function testCanCatchAndYieldOtherException() |
| 449 |
{ |
| 450 |
$promise = P\coroutine(function () { |
| 451 |
try { |
| 452 |
yield new RejectedPromise('a'); |
| 453 |
$this->fail('Should have thrown into the coroutine!'); |
| 454 |
} catch (RejectionException $e) { |
| 455 |
yield new RejectedPromise('foo'); |
| 456 |
} |
| 457 |
}); |
| 458 |
$promise->otherwise(function ($value) use (&$result) { $result = $value; }); |
| 459 |
P\queue()->run(); |
| 460 |
$this->assertEquals(PromiseInterface::REJECTED, $promise->getState()); |
| 461 |
$this->assertContains('foo', $result->getMessage()); |
| 462 |
} |
| 463 |
|
| 464 |
public function createLotsOfSynchronousPromise() |
| 465 |
{ |
| 466 |
return P\coroutine(function () { |
| 467 |
$value = 0; |
| 468 |
for ($i = 0; $i < 1000; $i++) { |
| 469 |
$value = (yield new FulfilledPromise($i)); |
| 470 |
} |
| 471 |
yield $value; |
| 472 |
}); |
| 473 |
} |
| 474 |
|
| 475 |
public function testLotsOfSynchronousDoesNotBlowStack() |
| 476 |
{ |
| 477 |
$promise = $this->createLotsOfSynchronousPromise(); |
| 478 |
$promise->then(function ($v) use (&$r) { $r = $v; }); |
| 479 |
P\queue()->run(); |
| 480 |
$this->assertEquals(999, $r); |
| 481 |
} |
| 482 |
|
| 483 |
public function testLotsOfSynchronousWaitDoesNotBlowStack() |
| 484 |
{ |
| 485 |
$promise = $this->createLotsOfSynchronousPromise(); |
| 486 |
$promise->then(function ($v) use (&$r) { $r = $v; }); |
| 487 |
$this->assertEquals(999, $promise->wait()); |
| 488 |
$this->assertEquals(999, $r); |
| 489 |
} |
| 490 |
|
| 491 |
private function createLotsOfFlappingPromise() |
| 492 |
{ |
| 493 |
return P\coroutine(function () { |
| 494 |
$value = 0; |
| 495 |
for ($i = 0; $i < 1000; $i++) { |
| 496 |
try { |
| 497 |
if ($i % 2) { |
| 498 |
$value = (yield new FulfilledPromise($i)); |
| 499 |
} else { |
| 500 |
$value = (yield new RejectedPromise($i)); |
| 501 |
} |
| 502 |
} catch (\Exception $e) { |
| 503 |
$value = (yield new FulfilledPromise($i)); |
| 504 |
} |
| 505 |
} |
| 506 |
yield $value; |
| 507 |
}); |
| 508 |
} |
| 509 |
|
| 510 |
public function testLotsOfTryCatchingDoesNotBlowStack() |
| 511 |
{ |
| 512 |
$promise = $this->createLotsOfFlappingPromise(); |
| 513 |
$promise->then(function ($v) use (&$r) { $r = $v; }); |
| 514 |
P\queue()->run(); |
| 515 |
$this->assertEquals(999, $r); |
| 516 |
} |
| 517 |
|
| 518 |
public function testLotsOfTryCatchingWaitingDoesNotBlowStack() |
| 519 |
{ |
| 520 |
$promise = $this->createLotsOfFlappingPromise(); |
| 521 |
$promise->then(function ($v) use (&$r) { $r = $v; }); |
| 522 |
$this->assertEquals(999, $promise->wait()); |
| 523 |
$this->assertEquals(999, $r); |
| 524 |
} |
| 525 |
|
| 526 |
public function testAsyncPromisesWithCorrectlyYieldedValues() |
| 527 |
{ |
| 528 |
$promises = [ |
| 529 |
new Promise(), |
| 530 |
new Promise(), |
| 531 |
new Promise() |
| 532 |
]; |
| 533 |
|
| 534 |
$promise = P\coroutine(function () use ($promises) { |
| 535 |
$this->assertEquals('skip', (yield new FulfilledPromise('skip'))); |
| 536 |
foreach ($promises as $idx => $p) { |
| 537 |
$this->assertEquals($idx, (yield $p)); |
| 538 |
$this->assertEquals('skip', (yield new FulfilledPromise('skip'))); |
| 539 |
} |
| 540 |
$this->assertEquals('skip', (yield new FulfilledPromise('skip'))); |
| 541 |
yield 2; |
| 542 |
}); |
| 543 |
|
| 544 |
$promises[0]->resolve(0); |
| 545 |
$promises[1]->resolve(1); |
| 546 |
$promises[2]->resolve(2); |
| 547 |
|
| 548 |
$promise->then(function ($v) use (&$r) { $r = $v; }); |
| 549 |
P\queue()->run(); |
| 550 |
$this->assertEquals(2, $r); |
| 551 |
} |
| 552 |
|
| 553 |
public function testYieldFinalWaitablePromise() |
| 554 |
{ |
| 555 |
$p1 = new Promise(function () use (&$p1) { |
| 556 |
$p1->resolve('skip me'); |
| 557 |
}); |
| 558 |
$p2 = new Promise(function () use (&$p2) { |
| 559 |
$p2->resolve('hello!'); |
| 560 |
}); |
| 561 |
$co = P\coroutine(function() use ($p1, $p2) { |
| 562 |
yield $p1; |
| 563 |
yield $p2; |
| 564 |
}); |
| 565 |
P\queue()->run(); |
| 566 |
$this->assertEquals('hello!', $co->wait()); |
| 567 |
} |
| 568 |
|
| 569 |
public function testCanYieldFinalPendingPromise() |
| 570 |
{ |
| 571 |
$p1 = new Promise(); |
| 572 |
$p2 = new Promise(); |
| 573 |
$co = P\coroutine(function() use ($p1, $p2) { |
| 574 |
yield $p1; |
| 575 |
yield $p2; |
| 576 |
}); |
| 577 |
$p1->resolve('a'); |
| 578 |
$p2->resolve('b'); |
| 579 |
$co->then(function ($value) use (&$result) { $result = $value; }); |
| 580 |
P\queue()->run(); |
| 581 |
$this->assertEquals('b', $result); |
| 582 |
} |
| 583 |
|
| 584 |
public function testCanNestYieldsAndFailures() |
| 585 |
{ |
| 586 |
$p1 = new Promise(); |
| 587 |
$p2 = new Promise(); |
| 588 |
$p3 = new Promise(); |
| 589 |
$p4 = new Promise(); |
| 590 |
$p5 = new Promise(); |
| 591 |
$co = P\coroutine(function() use ($p1, $p2, $p3, $p4, $p5) { |
| 592 |
try { |
| 593 |
yield $p1; |
| 594 |
} catch (\Exception $e) { |
| 595 |
yield $p2; |
| 596 |
try { |
| 597 |
yield $p3; |
| 598 |
yield $p4; |
| 599 |
} catch (\Exception $e) { |
| 600 |
yield $p5; |
| 601 |
} |
| 602 |
} |
| 603 |
}); |
| 604 |
$p1->reject('a'); |
| 605 |
$p2->resolve('b'); |
| 606 |
$p3->resolve('c'); |
| 607 |
$p4->reject('d'); |
| 608 |
$p5->resolve('e'); |
| 609 |
$co->then(function ($value) use (&$result) { $result = $value; }); |
| 610 |
P\queue()->run(); |
| 611 |
$this->assertEquals('e', $result); |
| 612 |
} |
| 613 |
|
| 614 |
public function testCanYieldErrorsAndSuccessesWithoutRecursion() |
| 615 |
{ |
| 616 |
$promises = []; |
| 617 |
for ($i = 0; $i < 20; $i++) { |
| 618 |
$promises[] = new Promise(); |
| 619 |
} |
| 620 |
|
| 621 |
$co = P\coroutine(function() use ($promises) { |
| 622 |
for ($i = 0; $i < 20; $i += 4) { |
| 623 |
try { |
| 624 |
yield $promises[$i]; |
| 625 |
yield $promises[$i + 1]; |
| 626 |
} catch (\Exception $e) { |
| 627 |
yield $promises[$i + 2]; |
| 628 |
yield $promises[$i + 3]; |
| 629 |
} |
| 630 |
} |
| 631 |
}); |
| 632 |
|
| 633 |
for ($i = 0; $i < 20; $i += 4) { |
| 634 |
$promises[$i]->resolve($i); |
| 635 |
$promises[$i + 1]->reject($i + 1); |
| 636 |
$promises[$i + 2]->resolve($i + 2); |
| 637 |
$promises[$i + 3]->resolve($i + 3); |
| 638 |
} |
| 639 |
|
| 640 |
$co->then(function ($value) use (&$result) { $result = $value; }); |
| 641 |
P\queue()->run(); |
| 642 |
$this->assertEquals('19', $result); |
| 643 |
} |
| 644 |
|
| 645 |
public function testCanWaitOnPromiseAfterFulfilled() |
| 646 |
{ |
| 647 |
$f = function () { |
| 648 |
static $i = 0; |
| 649 |
$i++; |
| 650 |
return $p = new Promise(function () use (&$p, $i) { |
| 651 |
$p->resolve($i . '-bar'); |
| 652 |
}); |
| 653 |
}; |
| 654 |
|
| 655 |
$promises = []; |
| 656 |
for ($i = 0; $i < 20; $i++) { |
| 657 |
$promises[] = $f(); |
| 658 |
} |
| 659 |
|
| 660 |
$p = P\coroutine(function () use ($promises) { |
| 661 |
yield new FulfilledPromise('foo!'); |
| 662 |
foreach ($promises as $promise) { |
| 663 |
yield $promise; |
| 664 |
} |
| 665 |
}); |
| 666 |
|
| 667 |
$this->assertEquals('20-bar', $p->wait()); |
| 668 |
} |
| 669 |
|
| 670 |
public function testCanWaitOnErroredPromises() |
| 671 |
{ |
| 672 |
$p1 = new Promise(function () use (&$p1) { $p1->reject('a'); }); |
| 673 |
$p2 = new Promise(function () use (&$p2) { $p2->resolve('b'); }); |
| 674 |
$p3 = new Promise(function () use (&$p3) { $p3->resolve('c'); }); |
| 675 |
$p4 = new Promise(function () use (&$p4) { $p4->reject('d'); }); |
| 676 |
$p5 = new Promise(function () use (&$p5) { $p5->resolve('e'); }); |
| 677 |
$p6 = new Promise(function () use (&$p6) { $p6->reject('f'); }); |
| 678 |
|
| 679 |
$co = P\coroutine(function() use ($p1, $p2, $p3, $p4, $p5, $p6) { |
| 680 |
try { |
| 681 |
yield $p1; |
| 682 |
} catch (\Exception $e) { |
| 683 |
yield $p2; |
| 684 |
try { |
| 685 |
yield $p3; |
| 686 |
yield $p4; |
| 687 |
} catch (\Exception $e) { |
| 688 |
yield $p5; |
| 689 |
yield $p6; |
| 690 |
} |
| 691 |
} |
| 692 |
}); |
| 693 |
|
| 694 |
$res = P\inspect($co); |
| 695 |
$this->assertEquals('f', $res['reason']); |
| 696 |
} |
| 697 |
|
| 698 |
public function testCoroutineOtherwiseIntegrationTest() |
| 699 |
{ |
| 700 |
$a = new Promise(); |
| 701 |
$b = new Promise(); |
| 702 |
$promise = P\coroutine(function () use ($a, $b) { |
| 703 |
// Execute the pool of commands concurrently, and process errors. |
| 704 |
yield $a; |
| 705 |
yield $b; |
| 706 |
})->otherwise(function (\Exception $e) { |
| 707 |
// Throw errors from the operations as a specific Multipart error. |
| 708 |
throw new \OutOfBoundsException('a', 0, $e); |
| 709 |
}); |
| 710 |
$a->resolve('a'); |
| 711 |
$b->reject('b'); |
| 712 |
$reason = P\inspect($promise)['reason']; |
| 713 |
$this->assertInstanceOf(\OutOfBoundsException::class, $reason); |
| 714 |
$this->assertInstanceOf(RejectionException::class, $reason->getPrevious()); |
| 715 |
} |
| 716 |
} |
| 717 |
|
