Google\Cloud\Tests\Datastore\Query\QueryTest::testProjection PHP Method

    public function testProjection()
    {
        $property = 'propname';
        $self = $this->query->projection($property);
        $this->assertInstanceOf(Query::class, $self);
        $res = $this->query->queryObject();
        $this->assertEquals($res['projection'][0]['property']['name'], $property);
    }