/** @test */
public function shouldReturnAPromiseForAPromisedRejectionValue()
{
$d = new Deferred();
$mock = $this->createCallableMock();
$mock->expects($this->once())->method('__invoke')->with($this->identicalTo(1));
// Both the returned promise, and the deferred's own promise should
// be rejected with the same value
$d->resolver()->resolve(When::reject(1))->then($this->expectCallableNever(), $mock);
}
/** @test */
public function shouldRejectARejectedPromise()
{
$expected = 123;
$d = new Deferred();
$d->reject($expected);
$mock = $this->createCallableMock();
$mock->expects($this->once())->method('__invoke')->with($this->identicalTo($expected));
When::reject($d->promise())->then($this->expectCallableNever(), $mock);
}
/** @test */
public function shouldRejectIfAnyInputPromiseRejectsBeforeDesiredNumberOfInputsAreResolved()
{
$mock = $this->createCallableMock();
$mock->expects($this->once())->method('__invoke')->with($this->identicalTo(array(1 => 2, 2 => 3)));
When::some(array(When::resolve(1), When::reject(2), When::reject(3)), 2, $this->expectCallableNever(), $mock);
}
/** @test */
public function shouldRejectWhenInputContainsRejection()
{
$mock = $this->createCallableMock();
$mock->expects($this->once())->method('__invoke')->with($this->identicalTo(2));
When::reduce(array(When::resolve(1), When::reject(2), When::resolve(3)), $this->plus(), When::resolve(1))->then($this->expectCallableNever(), $mock);
}
/** @test */
public function shouldResolveWhenFirstInputPromiseResolves()
{
$mock = $this->createCallableMock();
$mock->expects($this->once())->method('__invoke')->with($this->identicalTo(1));
When::any(array(When::resolve(1), When::reject(2), When::reject(3)), $mock);
}
/** @test */
public function shouldRejectIfAnyInputPromiseRejects()
{
$mock = $this->createCallableMock();
$mock->expects($this->once())->method('__invoke')->with($this->identicalTo(2));
When::all(array(When::resolve(1), When::reject(2), When::resolve(3)), $this->expectCallableNever(), $mock);
}