public void ClientRulesWithMaxLengthAttribute_Localize()
{
// Arrange
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var metadata = provider.GetMetadataForProperty(typeof(string), "Length");
var attribute = new MaxLengthAttribute(10);
attribute.ErrorMessage = "Property must be max '{1}' characters long.";
var expectedProperties = new object[] { "Length", 10 };
var expectedMessage = "Property must be max '10' characters long.";
var stringLocalizer = new Mock<IStringLocalizer>();
stringLocalizer.Setup(s => s[attribute.ErrorMessage, expectedProperties])
.Returns(new LocalizedString(attribute.ErrorMessage, expectedMessage));
var adapter = new MaxLengthAttributeAdapter(attribute, stringLocalizer: stringLocalizer.Object);
var actionContext = new ActionContext();
var context = new ClientModelValidationContext(actionContext, metadata, provider);
// Act
var rules = adapter.GetClientValidationRules(context);
// Assert
var rule = Assert.Single(rules);
Assert.Equal("maxlength", rule.ValidationType);
Assert.Equal(1, rule.ValidationParameters.Count);
Assert.Equal(10, rule.ValidationParameters["max"]);
Assert.Equal(attribute.FormatErrorMessage("Length"), rule.ErrorMessage);
}
public void AddValidation_DoesNotTrounceExistingAttributes()
{
// Arrange
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var metadata = provider.GetMetadataForProperty(typeof(string), "Length");
var attribute = new MaxLengthAttribute(10);
var adapter = new MaxLengthAttributeAdapter(attribute, stringLocalizer: null);
var expectedMessage = attribute.FormatErrorMessage("Length");
var actionContext = new ActionContext();
var context = new ClientModelValidationContext(actionContext, metadata, provider, new AttributeDictionary());
context.Attributes.Add("data-val", "original");
context.Attributes.Add("data-val-maxlength", "original");
context.Attributes.Add("data-val-maxlength-max", "original");
// Act
adapter.AddValidation(context);
// Assert
Assert.Collection(
context.Attributes,
kvp => { Assert.Equal("data-val", kvp.Key); Assert.Equal("original", kvp.Value); },
kvp => { Assert.Equal("data-val-maxlength", kvp.Key); Assert.Equal("original", kvp.Value); },
kvp => { Assert.Equal("data-val-maxlength-max", kvp.Key); Assert.Equal("original", kvp.Value); });
}
public void ClientRulesWithMaxLengthAttribute()
{
// Arrange
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var metadata = provider.GetMetadataForProperty(typeof(string), "Length");
var attribute = new MaxLengthAttribute(10);
var adapter = new MaxLengthAttributeAdapter(attribute, stringLocalizer: null);
var serviceCollection = new ServiceCollection();
var requestServices = serviceCollection.BuildServiceProvider();
var context = new ClientModelValidationContext(metadata, provider, requestServices);
// Act
var rules = adapter.GetClientValidationRules(context);
// Assert
var rule = Assert.Single(rules);
Assert.Equal("maxlength", rule.ValidationType);
Assert.Equal(1, rule.ValidationParameters.Count);
Assert.Equal(10, rule.ValidationParameters["max"]);
Assert.Equal(attribute.FormatErrorMessage("Length"), rule.ErrorMessage);
}
public static string GetMaxLengthErrorMessage(int maximumLength, string field)
{
var attr = new MaxLengthAttribute(maximumLength);
return attr.FormatErrorMessage(field);
}
