Viewing file:  CancelTestTrait.php (5.95 KB) -rwxrwxr-x
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<?php
namespace React\Promise\PromiseTest;
use React\Promise;
trait CancelTestTrait
{
/**
* @return \React\Promise\PromiseAdapter\PromiseAdapterInterface
*/
abstract public function getPromiseTestAdapter(callable $canceller = null);
/** @test */
public function cancelShouldCallCancellerWithResolverArguments()
{
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->isType('callable'), $this->isType('callable'), $this->isType('callable'));
$adapter = $this->getPromiseTestAdapter($mock);
$adapter->promise()->cancel();
}
/** @test */
public function cancelShouldFulfillPromiseIfCancellerFulfills()
{
$adapter = $this->getPromiseTestAdapter(function ($resolve) {
$resolve(1);
});
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo(1));
$adapter->promise()
->then($mock, $this->expectCallableNever());
$adapter->promise()->cancel();
}
/** @test */
public function cancelShouldRejectPromiseIfCancellerRejects()
{
$adapter = $this->getPromiseTestAdapter(function ($resolve, $reject) {
$reject(1);
});
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo(1));
$adapter->promise()
->then($this->expectCallableNever(), $mock);
$adapter->promise()->cancel();
}
/** @test */
public function cancelShouldRejectPromiseWithExceptionIfCancellerThrows()
{
$e = new \Exception();
$adapter = $this->getPromiseTestAdapter(function () use ($e) {
throw $e;
});
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo($e));
$adapter->promise()
->then($this->expectCallableNever(), $mock);
$adapter->promise()->cancel();
}
/** @test */
public function cancelShouldProgressPromiseIfCancellerNotifies()
{
$adapter = $this->getPromiseTestAdapter(function ($resolve, $reject, $progress) {
$progress(1);
});
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->with($this->identicalTo(1));
$adapter->promise()
->then($this->expectCallableNever(), $this->expectCallableNever(), $mock);
$adapter->promise()->cancel();
}
/** @test */
public function cancelShouldCallCancellerOnlyOnceIfCancellerResolves()
{
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke')
->will($this->returnCallback(function ($resolve) {
$resolve();
}));
$adapter = $this->getPromiseTestAdapter($mock);
$adapter->promise()->cancel();
$adapter->promise()->cancel();
}
/** @test */
public function cancelShouldHaveNoEffectIfCancellerDoesNothing()
{
$adapter = $this->getPromiseTestAdapter(function () {});
$adapter->promise()
->then($this->expectCallableNever(), $this->expectCallableNever());
$adapter->promise()->cancel();
$adapter->promise()->cancel();
}
/** @test */
public function cancelShouldCallCancellerFromDeepNestedPromiseChain()
{
$mock = $this->createCallableMock();
$mock
->expects($this->once())
->method('__invoke');
$adapter = $this->getPromiseTestAdapter($mock);
$promise = $adapter->promise()
->then(function () {
return new Promise\Promise(function () {});
})
->then(function () {
$d = new Promise\Deferred();
return $d->promise();
})
->then(function () {
return new Promise\Promise(function () {});
});
$promise->cancel();
}
/** @test */
public function cancelCalledOnChildrenSouldOnlyCancelWhenAllChildrenCancelled()
{
$adapter = $this->getPromiseTestAdapter($this->expectCallableNever());
$child1 = $adapter->promise()
->then()
->then();
$adapter->promise()
->then();
$child1->cancel();
}
/** @test */
public function cancelShouldTriggerCancellerWhenAllChildrenCancel()
{
$adapter = $this->getPromiseTestAdapter($this->expectCallableOnce());
$child1 = $adapter->promise()
->then()
->then();
$child2 = $adapter->promise()
->then();
$child1->cancel();
$child2->cancel();
}
/** @test */
public function cancelShouldNotTriggerCancellerWhenCancellingOneChildrenMultipleTimes()
{
$adapter = $this->getPromiseTestAdapter($this->expectCallableNever());
$child1 = $adapter->promise()
->then()
->then();
$child2 = $adapter->promise()
->then();
$child1->cancel();
$child1->cancel();
}
/** @test */
public function cancelShouldTriggerCancellerOnlyOnceWhenCancellingMultipleTimes()
{
$adapter = $this->getPromiseTestAdapter($this->expectCallableOnce());
$adapter->promise()->cancel();
$adapter->promise()->cancel();
}
/** @test */
public function cancelShouldAlwaysTriggerCancellerWhenCalledOnRootPromise()
{
$adapter = $this->getPromiseTestAdapter($this->expectCallableOnce());
$adapter->promise()
->then()
->then();
$adapter->promise()
->then();
$adapter->promise()->cancel();
}
}
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