public function testSetAndGetNamespace()
 {
     $namespace = 'Namespace';
     $this->sequencer->setNamespace($namespace);
     $this->assertEquals($namespace, $this->sequencer->getNamespace());
 }
 public function testInstantiationWithNamespace()
 {
     $namespace = 'namespace';
     $sequencer = new Sequencer($namespace);
     $this->assertEquals($namespace, $sequencer->getNamespace());
 }