/**
* Test registering an OUTPUT pipe to a junction.
* <P>
* Tests that the OUTPUT pipe is successfully registered and
* that the hasPipe and hasOutputPipe methods work. Then tests
* that the pipe can be retrieved by name.</P>
* <P>
* Finally, it removes the registered OUTPUT pipe and tests
* that all the previous assertions about it's registration
* and accessability via the Junction are no longer true.</P>
*/
public function testRegisterRetrieveAndRemoveOutputPipe()
{
// create pipe connected to this test with a pipelistener
$pipe = new Pipe();
// create junction
$junction = new Junction();
// register the pipe with the junction, giving it a name and direction
$registered = $junction->registerPipe('testOutputPipe', Junction::OUTPUT, $pipe);
// test assertions
$this->assertTrue($pipe instanceof Pipe, "Expecting \$pipe instanceof Pipe");
$this->assertTrue($junction instanceof Junction, "Expecting \$junction instanceof Junction");
$this->assertTrue($registered, "Expecting regsitered pipe");
// assertions about junction methods once input pipe is registered
$this->assertTrue($junction->hasPipe('testOutputPipe'), "Expecting junction has pipe");
$this->assertTrue($junction->hasOutputPipe('testOutputPipe'), "Expecting junction has pipe registered as an OUTPUT type");
$this->assertTrue($junction->retrievePipe('testOutputPipe') === $pipe, "Expecting pipe retrieved from junction");
// object equality
// now remove the pipe and be sure that it is no longer there (same assertions should be false)
$junction->removePipe('testOutputPipe');
$this->assertFalse($junction->hasPipe('testOutputPipe'), "Expecting junction has pipe");
$this->assertFalse($junction->hasOutputPipe('testOutputPipe'), "Expecting junction has pipe registered as an INPUT type");
$this->assertFalse($junction->retrievePipe('testOutputPipe') === $pipe, "Expecting pipe can't be retrieved from junction");
// object equality
}
