public void TestConstructor()
        {
            var exception = new RequiredFileMissingException("MissingFile");

            Assert.AreEqual("MissingFile", exception.FileName);
        }
        public void TestToString()
        {
            var exception = new RequiredFileMissingException("Missing File");

            Assert.AreEqual("Required file Missing File is missing!", exception.ToString());
        }