AssertTest::testAll PHP Method

    public function testAll($format, $file, $expected)
    {
        $detect = LanguageDetector\Detect::initByPath(__DIR__ . "/../example/datafile.{$format}");
        $lang = $detect->detect(file_get_contents($file));
        if (is_array($lang)) {
            $this->assertEquals($expected, $lang[0]['lang']);
            return;
        }
        $this->assertEquals($expected, $lang);
    }