/** * Test for getNamespaces(). */ public function testGetNamespaces() { $data = [['namespace_1', 'key_11'], ['namespace_2', 'key_21']]; $holder = new KeyBag(); $namespaces = []; foreach ($data as $row) { list($namespace, $key) = $row; $namespaces[] = $namespace; $holder->add($namespace, $key); } $this->assertEquals($namespaces, $holder->getNamespaces()); }