public void FileAppender_LogFormat_ShouldLogError() { var moqError = new Error { LogTime = DateTime.Now, Entity = "", AttemptedAction = "Log an Info Error", StackTrace = "Exception.UnitTest", Code = 1050 }; var fileAppender = new FileAppenderHub(this); fileAppender.Log(moqError.ToString()); Assert.IsInstanceOfType(moqError, typeof(Error)); }