Viewing file:  ResolveTestTrait.php (7.78 KB) -rwxrwxr-x
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<?php
namespace React\Promise\PromiseTest;
use React\Promise;
trait ResolveTestTrait
{
/**
* @return \React\Promise\PromiseAdapter\PromiseAdapterInterface
*/
abstract public function getPromiseTestAdapter(callable $canceller = null);
/** @test */
public function resolveShouldResolve()
{
$adapter = $this->getPromiseTestAdapter();
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo(1));
$adapter->promise()
->then($mock);
$adapter->resolve(1);
}
/** @test */
public function resolveShouldResolveWithPromisedValue()
{
$adapter = $this->getPromiseTestAdapter();
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo(1));
$adapter->promise()
->then($mock);
$adapter->resolve(Promise\resolve(1));
}
/** @test */
public function resolveShouldRejectWhenResolvedWithRejectedPromise()
{
$adapter = $this->getPromiseTestAdapter();
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo(1));
$adapter->promise()
->then($this->expectCallableNever(), $mock);
$adapter->resolve(Promise\reject(1));
}
/** @test */
public function resolveShouldForwardValueWhenCallbackIsNull()
{
$adapter = $this->getPromiseTestAdapter();
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo(1));
$adapter->promise()
->then(
null,
$this->expectCallableNever()
)
->then(
$mock,
$this->expectCallableNever()
);
$adapter->resolve(1);
}
/** @test */
public function resolveShouldMakePromiseImmutable()
{
$adapter = $this->getPromiseTestAdapter();
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo(1));
$adapter->promise()
->then(function ($value) use ($adapter) {
$adapter->resolve(3);
return $value;
})
->then(
$mock,
$this->expectCallableNever()
);
$adapter->resolve(1);
$adapter->resolve(2);
}
/**
* @test
*/
public function resolveShouldRejectWhenResolvedWithItself()
{
$adapter = $this->getPromiseTestAdapter();
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with(new \LogicException('Cannot resolve a promise with itself.'));
$adapter->promise()
->then(
$this->expectCallableNever(),
$mock
);
$adapter->resolve($adapter->promise());
}
/**
* @test
*/
public function resolveShouldRejectWhenResolvedWithAPromiseWhichFollowsItself()
{
$adapter1 = $this->getPromiseTestAdapter();
$adapter2 = $this->getPromiseTestAdapter();
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with(new \LogicException('Cannot resolve a promise with itself.'));
$promise1 = $adapter1->promise();
$promise2 = $adapter2->promise();
$promise2->then(
$this->expectCallableNever(),
$mock
);
$adapter1->resolve($promise2);
$adapter2->resolve($promise1);
}
/** @test */
public function doneShouldInvokeFulfillmentHandler()
{
$adapter = $this->getPromiseTestAdapter();
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo(1));
$this->assertNull($adapter->promise()->done($mock));
$adapter->resolve(1);
}
/** @test */
public function doneShouldThrowExceptionThrownFulfillmentHandler()
{
$adapter = $this->getPromiseTestAdapter();
$this->setExpectedException('\Exception', 'UnhandledRejectionException');
$this->assertNull($adapter->promise()->done(function () {
throw new \Exception('UnhandledRejectionException');
}));
$adapter->resolve(1);
}
/** @test */
public function doneShouldThrowUnhandledRejectionExceptionWhenFulfillmentHandlerRejects()
{
$adapter = $this->getPromiseTestAdapter();
$this->setExpectedException('React\\Promise\\UnhandledRejectionException');
$this->assertNull($adapter->promise()->done(function () {
return \React\Promise\reject();
}));
$adapter->resolve(1);
}
/** @test */
public function alwaysShouldNotSuppressValue()
{
$adapter = $this->getPromiseTestAdapter();
$value = new \stdClass();
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo($value));
$adapter->promise()
->always(function () {})
->then($mock);
$adapter->resolve($value);
}
/** @test */
public function alwaysShouldNotSuppressValueWhenHandlerReturnsANonPromise()
{
$adapter = $this->getPromiseTestAdapter();
$value = new \stdClass();
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo($value));
$adapter->promise()
->always(function () {
return 1;
})
->then($mock);
$adapter->resolve($value);
}
/** @test */
public function alwaysShouldNotSuppressValueWhenHandlerReturnsAPromise()
{
$adapter = $this->getPromiseTestAdapter();
$value = new \stdClass();
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo($value));
$adapter->promise()
->always(function () {
return \React\Promise\resolve(1);
})
->then($mock);
$adapter->resolve($value);
}
/** @test */
public function alwaysShouldRejectWhenHandlerThrowsForFulfillment()
{
$adapter = $this->getPromiseTestAdapter();
$exception = new \Exception();
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo($exception));
$adapter->promise()
->always(function () use ($exception) {
throw $exception;
})
->then(null, $mock);
$adapter->resolve(1);
}
/** @test */
public function alwaysShouldRejectWhenHandlerRejectsForFulfillment()
{
$adapter = $this->getPromiseTestAdapter();
$exception = new \Exception();
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo($exception));
$adapter->promise()
->always(function () use ($exception) {
return \React\Promise\reject($exception);
})
->then(null, $mock);
$adapter->resolve(1);
}
}
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