Piwik\Plugin\ReleaseChannels::isValidReleaseChannelId PHP Method

    public function isValidReleaseChannelId($releaseChannelId)
    {
        $channel = $this->factory($releaseChannelId);
        return !empty($channel);
    }

 /**
  * @dataProvider getTestValidReleaseChannelIds
  */
 public function test_isValidReleaseChannelId_shouldDetectIfReleaseChannelIsCorrectOrNot($expectedExists, $id)
 {
     $this->assertSame($expectedExists, $this->channels->isValidReleaseChannelId($id));
 }