public void NullPathIsAppendedCorrect()
    {
        string baseUri      = "http://sonarqube.test.de/";
        string username     = "******";
        string password     = "******";
        string toAppend     = "some/path/";
        string alsoToAppend = null;

        SqAuthValidationUriBuilder uri = new SqAuthValidationUriBuilder(baseUri, username, password);

        uri.AppendToPath(toAppend);
        uri.AppendToPath(alsoToAppend);

        string expectedBaseUri = "http://" + username + ":" + password + "@" + "sonarqube.test.de/api/authentication/validate/";

        Assert.AreEqual(expectedBaseUri + toAppend, uri.GetSqUri().ToString());
    }