Google\Cloud\Tests\Snippets\Vision\ImageTest::testRequestObject PHP Method

    public function testRequestObject()
    {
        $snippet = $this->snippetFromMethod(Image::class, 'requestObject');
        $snippet->setLine(2, '$imageResource = fopen(\'php://temp\', \'r\');');
        $res = $snippet->invoke('requestObj');
        $this->assertTrue(array_key_exists('image', $res->returnVal()));
        $this->assertTrue(array_key_exists('features', $res->returnVal()));
    }