Наследование: System.ComponentModel.DataAnnotations.BaseRegValidateAttribute
        public void ErrorMessageTest()
        {
            var attribute = new EmailAttribute();
            attribute.ErrorMessage = "SampleErrorMessage";

            const string invalidValue = "a";

            var result = attribute.GetValidationResult(invalidValue, new ValidationContext(0, null, null));

            Assert.AreEqual("SampleErrorMessage", result.ErrorMessage);
        }
        public void ErrorResourcesTest()
        {
            var attribute = new EmailAttribute();
            attribute.ErrorMessageResourceName = "ErrorMessage";
            attribute.ErrorMessageResourceType = typeof(ErrorResources);

            const string invalidValue = "a";

            var result = attribute.GetValidationResult(invalidValue, new ValidationContext(0, null, null));

            Assert.AreEqual("error message", result.ErrorMessage);
        }
        public void IsValidTests()
        {
            var attribute = new EmailAttribute();

            Assert.IsTrue(attribute.IsValid(null)); // Don't check for required
            Assert.IsTrue(attribute.IsValid("*****@*****.**"));
            Assert.IsTrue(attribute.IsValid("*****@*****.**"));
            Assert.IsTrue(attribute.IsValid("*****@*****.**"));
            Assert.IsFalse(attribute.IsValid("foo"));
            Assert.IsFalse(attribute.IsValid("foo@"));
            Assert.IsFalse(attribute.IsValid("foo@bar"));
        }
        public void GlobalizedErrorResourcesTest()
        {
            System.Threading.Thread.CurrentThread.CurrentUICulture = new CultureInfo("es-MX");

            var attribute = new EmailAttribute();
            attribute.ErrorMessageResourceName = "ErrorMessage";
            attribute.ErrorMessageResourceType = typeof(ErrorResources);

            const string invalidValue = "a";

            var result = attribute.GetValidationResult(invalidValue, new ValidationContext(0, null, null));

            Assert.AreEqual("mensaje de error", result.ErrorMessage);
        }