public function testApiThen_ForwardsValue_ToNextCallback()
{
$deferred = $this->createDeferred();
$test = $this->getTest();
$mock = $test->createCallableMock();
$mock->expects($test->once())->method('__invoke')->with($test->identicalTo(2));
$deferred->resolve(1);
$deferred->getPromise()->then(function ($val) {
return $val + 1;
}, $test->expectCallableNever())->then($mock, $test->expectCallableNever());
}