public void AddValidation_WithMaxLengthAndMinLength_AddsAttributes_Localize()
        {
            // Arrange
            var provider = TestModelMetadataProvider.CreateDefaultProvider();
            var metadata = provider.GetMetadataForProperty(typeof(string), "Length");

            var attribute = new StringLengthAttribute(8);

            attribute.ErrorMessage = "Property must not be longer than '{1}' characters and not shorter than '{2}' characters.";

            var expectedMessage = "Property must not be longer than '8' characters and not shorter than '0' characters.";

            var stringLocalizer    = new Mock <IStringLocalizer>();
            var expectedProperties = new object[] { "Length", 8, 0 };

            stringLocalizer.Setup(s => s[attribute.ErrorMessage, expectedProperties])
            .Returns(new LocalizedString(attribute.ErrorMessage, expectedMessage));

            var adapter = new StringLengthAttributeAdapter(attribute, stringLocalizer: stringLocalizer.Object);

            var actionContext = new ActionContext();
            var context       = new ClientModelValidationContext(actionContext, metadata, provider, new Dictionary <string, string>());

            // Act
            adapter.AddValidation(context);

            // Assert
            Assert.Collection(
                context.Attributes,
                kvp => { Assert.Equal("data-val", kvp.Key); Assert.Equal("true", kvp.Value); },
                kvp => { Assert.Equal("data-val-length", kvp.Key); Assert.Equal(expectedMessage, kvp.Value); },
                kvp => { Assert.Equal("data-val-length-max", kvp.Key); Assert.Equal("8", kvp.Value); });
        }
        public void AddValidation_WithMinAndMaxLength_AddsAttributes()
        {
            // Arrange
            var provider = TestModelMetadataProvider.CreateDefaultProvider();
            var metadata = provider.GetMetadataForProperty(typeof(string), "Length");

            var attribute = new StringLengthAttribute(10)
            {
                MinimumLength = 3
            };
            var adapter = new StringLengthAttributeAdapter(attribute, stringLocalizer: null);

            var expectedMessage = attribute.FormatErrorMessage("Length");

            var actionContext = new ActionContext();
            var context       = new ClientModelValidationContext(actionContext, metadata, provider, new Dictionary <string, string>());

            // Act
            adapter.AddValidation(context);

            // Assert
            Assert.Collection(
                context.Attributes,
                kvp => { Assert.Equal("data-val", kvp.Key); Assert.Equal("true", kvp.Value); },
                kvp => { Assert.Equal("data-val-length", kvp.Key); Assert.Equal(expectedMessage, kvp.Value); },
                kvp => { Assert.Equal("data-val-length-max", kvp.Key); Assert.Equal("10", kvp.Value); },
                kvp => { Assert.Equal("data-val-length-min", kvp.Key); Assert.Equal("3", kvp.Value); });
        }
        /// <summary>
        /// Creates an <see cref="IAttributeAdapter"/> for the given attribute.
        /// </summary>
        /// <param name="attribute">The attribute to create an adapter for.</param>
        /// <param name="stringLocalizer">The localizer to provide to the adapter.</param>
        /// <returns>An <see cref="IAttributeAdapter"/> for the given attribute.</returns>
        public IAttributeAdapter GetAttributeAdapter(ValidationAttribute attribute, IStringLocalizer stringLocalizer)
        {
            if (attribute == null)
            {
                throw new ArgumentNullException(nameof(attribute));
            }

            IAttributeAdapter adapter;

            var type = attribute.GetType();

            if (type == typeof(RegularExpressionAttribute))
            {
                adapter = new RegularExpressionAttributeAdapter((RegularExpressionAttribute)attribute, stringLocalizer);
            }
            else if (type == typeof(MaxLengthAttribute))
            {
                adapter = new MaxLengthAttributeAdapter((MaxLengthAttribute)attribute, stringLocalizer);
            }
            else if (type == typeof(RequiredAttribute))
            {
                adapter = new RequiredAttributeAdapter((RequiredAttribute)attribute, stringLocalizer);
            }
            else if (type == typeof(CompareAttribute))
            {
                adapter = new CompareAttributeAdapter((CompareAttribute)attribute, stringLocalizer);
            }
            else if (type == typeof(MinLengthAttribute))
            {
                adapter = new MinLengthAttributeAdapter((MinLengthAttribute)attribute, stringLocalizer);
            }
            else if (type == typeof(CreditCardAttribute))
            {
                adapter = new DataTypeAttributeAdapter((DataTypeAttribute)attribute, "data-val-creditcard", stringLocalizer);
            }
            else if (type == typeof(StringLengthAttribute))
            {
                adapter = new StringLengthAttributeAdapter((StringLengthAttribute)attribute, stringLocalizer);
            }
            else if (type == typeof(RangeAttribute))
            {
                adapter = new RangeAttributeAdapter((RangeAttribute)attribute, stringLocalizer);
            }
            else if (type == typeof(EmailAddressAttribute))
            {
                adapter = new DataTypeAttributeAdapter((DataTypeAttribute)attribute, "data-val-email", stringLocalizer);
            }
            else if (type == typeof(PhoneAttribute))
            {
                adapter = new DataTypeAttributeAdapter((DataTypeAttribute)attribute, "data-val-phone", stringLocalizer);
            }
            else if (type == typeof(UrlAttribute))
            {
                adapter = new DataTypeAttributeAdapter((DataTypeAttribute)attribute, "data-val-url", stringLocalizer);
            }
            else if (type == typeof(FileExtensionsAttribute))
            {
                adapter = new FileExtensionsAttributeAdapter((FileExtensionsAttribute)attribute, stringLocalizer);
            }
            else
            {
                adapter = null;
            }

            return(adapter);
        }