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

    public function testFilterCustomOperator()
    {
        $self = $this->query->filter('propname', Query::OP_GREATER_THAN, 12);
        $this->assertInstanceOf(Query::class, $self);
        $res = $this->query->queryObject();
        $filters = $res['filter']['compositeFilter']['filters'];
        $this->assertEquals($filters[0]['propertyFilter'], ['property' => ['name' => 'propname'], 'value' => ['integerValue' => 12], 'op' => Query::OP_GREATER_THAN]);
    }