public static string GetUserErrorMessageOrDefault(ModelError modelError, ModelStateEntry entry)
{
if (!string.IsNullOrEmpty(modelError.ErrorMessage))
{
return modelError.ErrorMessage;
}
if (entry == null)
{
return string.Empty;
}
var attemptedValue = entry.AttemptedValue ?? "null";
return Resources.FormatCommon_ValueNotValidForProperty(attemptedValue);
}
public void ProcessDto_RequiredFieldNull_RaisesModelErrorWithMessage()
{
// Arrange
var model = new Person();
var containerMetadata = GetMetadataForObject(model);
var bindingContext = CreateContext(containerMetadata);
ComplexModelDto dto = new ComplexModelDto(containerMetadata, containerMetadata.Properties);
TestableMutableObjectModelBinder testableBinder = new TestableMutableObjectModelBinder();
// Make ValueTypeRequired invalid.
var propertyMetadata = dto.PropertyMetadata.Single(p => p.PropertyName == "ValueTypeRequired");
dto.Results[propertyMetadata] =
new ComplexModelDtoResult(null, new ModelValidationNode(propertyMetadata, "theModel.ValueTypeRequired"));
// Act
testableBinder.ProcessDto(bindingContext, dto);
// Assert
ModelStateDictionary modelStateDictionary = bindingContext.ModelState;
Assert.Equal(false, modelStateDictionary.IsValid);
Assert.Equal(1, modelStateDictionary.Count);
// Check ValueTypeRequired error.
ModelState modelState;
Assert.True(modelStateDictionary.TryGetValue("theModel.ValueTypeRequired", out modelState));
Assert.Equal(1, modelState.Errors.Count);
ModelError modelError = modelState.Errors[0];
Assert.Null(modelError.Exception);
Assert.NotNull(modelError.ErrorMessage);
Assert.Equal("Sample message", modelError.ErrorMessage);
}
private static void AssertRequiredError(string key, ModelError error)
{
// Mono issue - https://github.com/aspnet/External/issues/19
Assert.Equal(PlatformNormalizer.NormalizeContent(
string.Format("The {0} field is required.", key)), error.ErrorMessage);
Assert.Null(error.Exception);
}
private static void AssertRequiredError(string key, ModelError error)
{
Assert.Equal(string.Format("The {0} field is required.", key), error.ErrorMessage);
Assert.Null(error.Exception);
}