public void SuppliesAppropriateParametersToDefaultNegatedMessage()
        {
            NotNullValidator validator = new NotNullValidator(true);
            validator.Tag = "tag";
            object target = "not null";
            string key = "key";

            ValidationResults validationResults = new ValidationResults();
            validator.DoValidate(target, null, key, validationResults);

            Assert.IsFalse(validationResults.IsValid);
            ValidationResult validationResult = ValidationTestHelper.GetResultsList(validationResults)[0];
            Match match = TemplateStringTester.Match(validator.MessageTemplate, validationResult.Message);
            Assert.IsTrue(match.Success);
            Assert.IsFalse(match.Groups["param0"].Success);
            Assert.IsFalse(match.Groups["param1"].Success);
            Assert.IsFalse(match.Groups["param2"].Success);
        }
        public void SuppliesAppropriateParametersToMessageTemplate()
        {
            NotNullValidator validator = new NotNullValidator();
            validator.MessageTemplate = "{0}|{1}|{2}";
            validator.Tag = "tag";
            object target = null;
            string key = "key";

            ValidationResults validationResults = new ValidationResults();
            validator.DoValidate(target, null, key, validationResults);

            Assert.IsFalse(validationResults.IsValid);
            ValidationResult validationResult = ValidationTestHelper.GetResultsList(validationResults)[0];
            Match match = TemplateStringTester.Match(validator.MessageTemplate, validationResult.Message);
            Assert.IsTrue(match.Success);
            Assert.IsTrue(match.Groups["param0"].Success);
            Assert.AreEqual("", match.Groups["param0"].Value);
            Assert.IsTrue(match.Groups["param1"].Success);
            Assert.AreEqual(key, match.Groups["param1"].Value);
            Assert.IsTrue(match.Groups["param2"].Success);
            Assert.AreEqual(validator.Tag, match.Groups["param2"].Value);
        }