System.ComponentModel.Tests.Win32ExceptionTestType.InstantiateException C# (CSharp) Method

        public static void InstantiateException()
        {
            int error = 5;
            string message = "This is an error message.";
            Exception innerException = new FormatException();

            // Test each of the constructors and validate the properties of the resulting instance

            Win32Exception ex = new Win32Exception();
            Assert.Equal(expected: E_FAIL, actual: ex.HResult);

            ex = new Win32Exception(error);
            Assert.Equal(expected: E_FAIL, actual: ex.HResult);
            Assert.Equal(expected: error, actual: ex.NativeErrorCode);

            ex = new Win32Exception(message);
            Assert.Equal(expected: E_FAIL, actual: ex.HResult);
            Assert.Equal(expected: message, actual: ex.Message);

            ex = new Win32Exception(error, message);
            Assert.Equal(expected: E_FAIL, actual: ex.HResult);
            Assert.Equal(expected: error, actual: ex.NativeErrorCode);
            Assert.Equal(expected: message, actual: ex.Message);

            ex = new Win32Exception(message, innerException);
            Assert.Equal(expected: E_FAIL, actual: ex.HResult);
            Assert.Equal(expected: message, actual: ex.Message);
            Assert.Same(expected: innerException, actual: ex.InnerException);
        }