public void GetVideoId_ProvidedYoutubeUrl_GetCorrectVideoId(string youtubeUrl, string expected)
{
// Act
var videoId = YoutubeVideoHelper.GetVideoId(youtubeUrl);
// Assert
Assert.AreEqual(expected, videoId);
}
public void GetVideoId_YoutubeUrlIsMalformatted_ThrowsUriFormatException()
{
// Act & Assert
Assert.Throws <UriFormatException>(() => YoutubeVideoHelper.GetVideoId("blah blah..."));
}
public void GetVideoId_YoutubeUrlIsNull_ThrowsArgumentNullException()
{
// Act & Assert
Assert.Throws <ArgumentNullException>(() => YoutubeVideoHelper.GetVideoId(null));
}