Google\Cloud\Tests\Snippets\Datastore\KeyTest::testSetLastElementIdentifier PHP Method

    public function testSetLastElementIdentifier()
    {
        $ds = $this->prophesize(DatastoreClient::class);
        $ds->key(Argument::any(), Argument::any())->will(function ($args) {
            return new Key('my-awesome-project', ['path' => [['kind' => $args[0]]]]);
        });
        $snippet = $this->snippetFromMethod(Key::class, 'setLastElementIdentifier');
        $snippet->addLocal('datastore', $ds->reveal());
        $snippet->addUse(Key::class);
        $res = $snippet->invoke('key');
        $this->assertEquals(Key::STATE_NAMED, $res->returnVal()->state());
    }