public function testEmptyQueries()
{
$processor = new Processor(new TestSchema());
$processor->processPayload('');
$this->assertEquals(['errors' => [['message' => 'Must provide an operation.']]], $processor->getResponseData());
$processor->getExecutionContext()->clearErrors();
$processor->processPayload('{ me { name } }');
$this->assertEquals(['data' => ['me' => ['name' => 'John']]], $processor->getResponseData());
}