public void MaxLengthAttribute_AddValidation_CustomMessage()
{
// Arrange
var propertyName = "Length";
var message = "{0} must be at most {1}";
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var metadata = provider.GetMetadataForProperty(typeof(string), propertyName);
var expectedMessage = "Length must be at most 5";
var attribute = new MaxLengthAttribute(5)
{
ErrorMessage = message
};
var adapter = new MaxLengthAttributeAdapter(attribute, stringLocalizer: null);
var actionContext = new ActionContext();
var context = new ClientModelValidationContext(actionContext, metadata, provider, new AttributeDictionary());
// 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-maxlength", kvp.Key); Assert.Equal(expectedMessage, kvp.Value); },
kvp => { Assert.Equal("data-val-maxlength-max", kvp.Key); Assert.Equal("5", kvp.Value); });
}
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 MaxLengthAttribute_AddValidation_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, new AttributeDictionary());
// 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-maxlength", kvp.Key); Assert.Equal(expectedMessage, kvp.Value); },
kvp => { Assert.Equal("data-val-maxlength-max", kvp.Key); Assert.Equal("10", kvp.Value); });
}
public void MaxLengthAttribute_AddValidation_StringLocalizer_ReturnsLocalizedErrorString()
{
// Arrange
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var metadata = provider.GetMetadataForProperty(typeof(string), "Length");
var errorKey = metadata.GetDisplayName();
var attribute = new MaxLengthAttribute(10);
attribute.ErrorMessage = errorKey;
var localizedString = new LocalizedString(errorKey, "Longueur est invalide");
var stringLocalizer = new Mock <IStringLocalizer>();
stringLocalizer.Setup(s => s[errorKey, metadata.GetDisplayName(), attribute.Length]).Returns(localizedString);
var expectedMessage = "Longueur est invalide";
var adapter = new MaxLengthAttributeAdapter(attribute, stringLocalizer.Object);
var actionContext = new ActionContext();
var context = new ClientModelValidationContext(actionContext, metadata, provider, new AttributeDictionary());
// 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-maxlength", kvp.Key); Assert.Equal(expectedMessage, kvp.Value); },
kvp => { Assert.Equal("data-val-maxlength-max", kvp.Key); Assert.Equal("10", kvp.Value); });
}
