public function testCompositeCommand() { $composite = new Composite(); //test basics of this command $this->assertTrue(is_subclass_of($composite, 'izzum\\command\\Command')); $this->assertTrue(in_array('izzum\\command\\IComposite', class_implements($composite))); $this->assertTrue(in_array('izzum\\command\\ICommand', class_implements($composite))); $list = array(); //create 3 commands with a reference to the same list $command1 = new AddToListCommand($list); $command2 = new AddToListCommand($list); $command3 = new AddToListCommand($list); //executing the composite does not affect list $composite->execute(); $this->assertEquals(0, count($list)); //add commands to composite 'in order' $composite->add($command1); $composite->add($command2); $composite->add($command3); //execute the composite, we expect to have an array with incrementing numbers, //proving the composite executes 'in order' $composite->execute(); $this->assertEquals(3, count($list)); $this->assertTrue($list[1] == $list[0] + 1); $this->assertTrue($list[2] == $list[1] + 1); $list = array(); $command1 = new AddToListCommand($list); $command2 = new AddToListCommand($list); $command3 = new AddToListCommand($list); $composite = new Composite(); //add the commands one by one and check everything works out //check add() and contains() $composite->add($command1); $this->assertTrue($composite->contains($command1)); $this->assertFalse($composite->contains($command2)); $this->assertFalse($composite->contains($command3)); $composite->add($command2); $this->assertTrue($composite->contains($command1)); $this->assertTrue($composite->contains($command2)); $this->assertFalse($composite->contains($command3)); $composite->add($command3); $this->assertTrue($composite->contains($command1)); $this->assertTrue($composite->contains($command2)); $this->assertTrue($composite->contains($command3)); //remove one by one //check remove() and contains() $this->assertEquals(3, $composite->count()); $composite->remove($command1); $this->assertFalse($composite->contains($command1)); $this->assertTrue($composite->contains($command2)); $this->assertTrue($composite->contains($command3)); $composite->remove($command2); $this->assertFalse($composite->contains($command1)); $this->assertFalse($composite->contains($command2)); $this->assertTrue($composite->contains($command3)); $composite->remove($command3); $this->assertFalse($composite->contains($command1)); $this->assertFalse($composite->contains($command2)); $this->assertFalse($composite->contains($command3)); $this->assertNotNull($composite->toString()); //nested composite $composite = new Composite(); $nested = new Composite(); $composite->add($nested); $this->assertNotNull($composite->toString()); }