public void download_should_reject_nonexistent_urls(string testUrl)
{
var service = new FileStore();
Assert.Throws <FileNotFoundException>(() => service.Download(testUrl, Path.GetTempFileName()));
}
public void download_should_reject_invalid_urls(string testUrl)
{
var service = new FileStore();
Assert.Throws <ArgumentException>(() => service.Download(testUrl, Path.GetTempFileName()));
}