public void SetProperty_PropertyHasDefaultValue_SetsDefaultValue()
{
// Arrange
HttpActionContext context = ContextUtil.CreateActionContext();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForObject(new Person())
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(o => o.PropertyName == "PropertyWithDefaultValue");
ModelValidationNode validationNode = new ModelValidationNode(propertyMetadata, "foo");
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(null /* model */, validationNode);
ModelValidator requiredValidator = context.GetValidators(propertyMetadata).Where(v => v.IsRequired).FirstOrDefault();
TestableMutableObjectModelBinder testableBinder = new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(context, bindingContext, propertyMetadata, dtoResult, requiredValidator);
// Assert
var person = Assert.IsType <Person>(bindingContext.Model);
Assert.Equal(123.456m, person.PropertyWithDefaultValue);
Assert.True(context.ModelState.IsValid);
}
public void SetProperty_PropertyIsSettable_CallsSetter()
{
// Arrange
Person model = new Person();
HttpActionContext context = ContextUtil.CreateActionContext();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForObject(model)
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(o => o.PropertyName == "DateOfBirth");
ModelValidationNode validationNode = new ModelValidationNode(propertyMetadata, "foo");
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(new DateTime(2001, 1, 1), validationNode);
ModelValidator requiredValidator = context.GetValidators(propertyMetadata).Where(v => v.IsRequired).FirstOrDefault();
TestableMutableObjectModelBinder testableBinder = new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(context, bindingContext, propertyMetadata, dtoResult, requiredValidator);
// Assert
validationNode.Validate(context);
Assert.True(context.ModelState.IsValid);
Assert.Equal(new DateTime(2001, 1, 1), model.DateOfBirth);
}
public void SetProperty_SettingNullableTypeToNull_RequiredValidatorPresent_PropertySetterThrows_AddsRequiredMessageString()
{
// Arrange
HttpActionContext context = ContextUtil.CreateActionContext();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForObject(new ModelWhosePropertySetterThrows()),
ModelName = "foo"
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(o => o.PropertyName == "Name");
ModelValidationNode validationNode = new ModelValidationNode(propertyMetadata, "foo.Name");
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(null /* model */, validationNode);
ModelValidator requiredValidator = context.GetValidators(propertyMetadata).Where(v => v.IsRequired).FirstOrDefault();
TestableMutableObjectModelBinder testableBinder = new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(context, bindingContext, propertyMetadata, dtoResult, requiredValidator);
// Assert
Assert.False(bindingContext.ModelState.IsValid);
Assert.Equal(1, bindingContext.ModelState["foo.Name"].Errors.Count);
Assert.Equal("This message comes from the [Required] attribute.", bindingContext.ModelState["foo.Name"].Errors[0].ErrorMessage);
}
internal void ProcessDto(HttpActionContext actionContext, ModelBindingContext bindingContext, ComplexModelDto dto)
{
HashSet <string> requiredProperties;
Dictionary <string, ModelValidator> requiredValidators;
HashSet <string> skipProperties;
GetRequiredPropertiesCollection(actionContext, bindingContext, out requiredProperties, out requiredValidators, out skipProperties);
// Are all of the required fields accounted for?
HashSet <string> missingRequiredProperties = new HashSet <string>(requiredProperties.Except(dto.Results.Select(r => r.Key.PropertyName)));
foreach (string missingRequiredProperty in missingRequiredProperties)
{
string key = ModelBindingHelper.CreatePropertyModelName(bindingContext.ValidationNode.ModelStateKey, missingRequiredProperty);
bindingContext.ModelState.AddModelError(key, Error.Format(SRResources.MissingRequiredMember, missingRequiredProperty));
}
// for each property that was bound, call the setter, recording exceptions as necessary
foreach (var entry in dto.Results)
{
ModelMetadata propertyMetadata = entry.Key;
ComplexModelDtoResult dtoResult = entry.Value;
if (dtoResult != null)
{
SetProperty(actionContext, bindingContext, propertyMetadata, dtoResult, requiredValidators[propertyMetadata.PropertyName]);
bindingContext.ValidationNode.ChildNodes.Add(dtoResult.ValidationNode);
}
}
}
public void SetProperty_PropertyIsReadOnly_DoesNothing()
{
// Arrange
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForType(typeof(Person))
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(
o => o.PropertyName == "NonUpdateableProperty"
);
ModelValidationNode validationNode = new ModelValidationNode(propertyMetadata, "foo");
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(
null /* model */
,
validationNode
);
TestableMutableObjectModelBinder testableBinder =
new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(
null,
bindingContext,
propertyMetadata,
dtoResult,
requiredValidator: null
);
// Assert
// If didn't throw, success!
}
public void SetProperty_SettingNullableTypeToNull_RequiredValidatorNotPresent_PropertySetterThrows_AddsRequiredMessageString()
{
// Arrange
HttpActionContext context = ContextUtil.CreateActionContext();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForObject(new ModelWhosePropertySetterThrows()),
ModelName = "foo"
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(o => o.PropertyName == "NameNoAttribute");
ModelValidationNode validationNode = new ModelValidationNode(propertyMetadata, "foo.NameNoAttribute");
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(null /* model */, validationNode);
ModelValidator requiredValidator = context.GetValidators(propertyMetadata).Where(v => v.IsRequired).FirstOrDefault();
TestableMutableObjectModelBinder testableBinder = new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(context, bindingContext, propertyMetadata, dtoResult, requiredValidator);
// Assert
Assert.False(bindingContext.ModelState.IsValid);
ModelError modelError = Assert.Single(bindingContext.ModelState["foo.NameNoAttribute"].Errors);
Assert.Equal(
"This is a different exception." + Environment.NewLine + "Parameter name: value",
modelError.Exception.Message);
}
public void SetProperty_PropertyIsSettable_SetterThrows_RecordsError()
{
// Arrange
Person model = new Person
{
DateOfBirth = new DateTime(1900, 1, 1)
};
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForObject(model)
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(o => o.PropertyName == "DateOfDeath");
ModelValidationNode validationNode = new ModelValidationNode(propertyMetadata, "foo");
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(new DateTime(1800, 1, 1), validationNode);
TestableMutableObjectModelBinder testableBinder = new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(null, bindingContext, propertyMetadata, dtoResult, requiredValidator: null);
// Assert
Assert.Equal(@"Date of death can't be before date of birth.
Parameter name: value", bindingContext.ModelState["foo"].Errors[0].Exception.Message);
}
public void Constructor_SetsProperties()
{
// Arrange
ModelValidationNode validationNode = GetValidationNode();
// Act
ComplexModelDtoResult result = new ComplexModelDtoResult("some string", validationNode);
// Assert
Assert.Equal("some string", result.Model);
Assert.Equal(validationNode, result.ValidationNode);
}
public void Constructor_SetsProperties()
{
// Arrange
ModelValidationNode validationNode = GetValidationNode();
// Act
ComplexModelDtoResult result = new ComplexModelDtoResult("some string", validationNode);
// Assert
Assert.Equal("some string", result.Model);
Assert.Equal(validationNode, result.ValidationNode);
}
internal void ProcessDto(HttpActionContext actionContext, ModelBindingContext bindingContext, ComplexModelDto dto)
{
HashSet <string> requiredProperties;
Dictionary <string, ModelValidator> requiredValidators;
HashSet <string> skipProperties;
GetRequiredPropertiesCollection(actionContext, bindingContext, out requiredProperties, out requiredValidators, out skipProperties);
// Eliminate provided properties from requiredProperties; leaving just *missing* required properties.
requiredProperties.ExceptWith(dto.Results.Select(r => r.Key.PropertyName));
foreach (string missingRequiredProperty in requiredProperties)
{
string modelStateKey = ModelBindingHelper.CreatePropertyModelName(
bindingContext.ValidationNode.ModelStateKey, missingRequiredProperty);
// Update Model as SetProperty() would: Place null value where validator will check for non-null. This
// ensures a failure result from a required validator (if any) even for a non-nullable property.
// (Otherwise, propertyMetadata.Model is likely already null.)
ModelMetadata propertyMetadata = bindingContext.PropertyMetadata[missingRequiredProperty];
propertyMetadata.Model = null;
// Execute validator (if any) to get custom error message.
ModelValidator validator = requiredValidators[missingRequiredProperty];
bool addedError = RunValidator(validator, bindingContext, propertyMetadata, modelStateKey);
// Fall back to default message if HttpBindingBehaviorAttribute required this property or validator
// (oddly) succeeded.
if (!addedError)
{
bindingContext.ModelState.AddModelError(modelStateKey,
Error.Format(SRResources.MissingRequiredMember, missingRequiredProperty));
}
}
// for each property that was bound, call the setter, recording exceptions as necessary
foreach (var entry in dto.Results)
{
ModelMetadata propertyMetadata = entry.Key;
ComplexModelDtoResult dtoResult = entry.Value;
if (dtoResult != null)
{
SetProperty(actionContext, bindingContext, propertyMetadata, dtoResult, requiredValidators[propertyMetadata.PropertyName]);
bindingContext.ValidationNode.ChildNodes.Add(dtoResult.ValidationNode);
}
}
}
public virtual void SetPropertyPublic(
HttpActionContext context,
ModelBindingContext bindingContext,
ModelMetadata propertyMetadata,
ComplexModelDtoResult dtoResult,
ModelValidator requiredValidator
)
{
base.SetProperty(
context,
bindingContext,
propertyMetadata,
dtoResult,
requiredValidator
);
}
protected override void SetProperty(
HttpActionContext actionContext,
ModelBindingContext bindingContext,
ModelMetadata propertyMetadata,
ComplexModelDtoResult dtoResult,
ModelValidator requiredValidator
)
{
SetPropertyPublic(
actionContext,
bindingContext,
propertyMetadata,
dtoResult,
requiredValidator
);
}
public void SetProperty_SettingNonNullableValueTypeToNull_RequiredValidatorPresent_AddsModelError()
{
// Arrange
HttpActionContext context = ContextUtil.CreateActionContext();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForObject(new Person()),
ModelName = "foo"
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(
o => o.PropertyName == "ValueTypeRequired"
);
ModelValidationNode validationNode = new ModelValidationNode(
propertyMetadata,
"foo.ValueTypeRequired"
);
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(
null /* model */
,
validationNode
);
ModelValidator requiredValidator = context
.GetValidators(propertyMetadata)
.Where(v => v.IsRequired)
.FirstOrDefault();
TestableMutableObjectModelBinder testableBinder =
new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(
context,
bindingContext,
propertyMetadata,
dtoResult,
requiredValidator
);
// Assert
Assert.False(bindingContext.ModelState.IsValid);
Assert.Equal(
"Sample message",
bindingContext.ModelState["foo.ValueTypeRequired"].Errors[0].ErrorMessage
);
}
public void SetProperty_SettingNonNullableValueTypeToNull_RequiredValidatorNotPresent_RegistersValidationCallback()
{
// Arrange
HttpActionContext context = ContextUtil.CreateActionContext();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForObject(new Person()),
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(
o => o.PropertyName == "DateOfBirth"
);
ModelValidationNode validationNode = new ModelValidationNode(propertyMetadata, "foo");
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(
null /* model */
,
validationNode
);
ModelValidator requiredValidator = context
.GetValidators(propertyMetadata)
.Where(v => v.IsRequired)
.FirstOrDefault();
TestableMutableObjectModelBinder testableBinder =
new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(
context,
bindingContext,
propertyMetadata,
dtoResult,
requiredValidator
);
// Assert
Assert.True(context.ModelState.IsValid);
validationNode.Validate(context, bindingContext.ValidationNode);
Assert.False(context.ModelState.IsValid);
}
protected override void SetProperty(HttpActionContext actionContext, ModelBindingContext bindingContext, ModelMetadata propertyMetadata, ComplexModelDtoResult dtoResult, ModelValidator requiredValidator)
{
SetPropertyPublic(actionContext, bindingContext, propertyMetadata, dtoResult, requiredValidator);
}
public virtual void SetPropertyPublic(HttpActionContext context, ModelBindingContext bindingContext, ModelMetadata propertyMetadata, ComplexModelDtoResult dtoResult, ModelValidator requiredValidator)
{
base.SetProperty(context, bindingContext, propertyMetadata, dtoResult, requiredValidator);
}
public void SetProperty_SettingNullableTypeToNull_RequiredValidatorPresent_PropertySetterThrows_AddsRequiredMessageString()
{
// Arrange
HttpActionContext context = ContextUtil.CreateActionContext();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForObject(new ModelWhosePropertySetterThrows()),
ModelName = "foo"
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(o => o.PropertyName == "Name");
ModelValidationNode validationNode = new ModelValidationNode(propertyMetadata, "foo.Name");
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(null /* model */, validationNode);
ModelValidator requiredValidator = context.GetValidators(propertyMetadata).Where(v => v.IsRequired).FirstOrDefault();
TestableMutableObjectModelBinder testableBinder = new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(context, bindingContext, propertyMetadata, dtoResult, requiredValidator);
// Assert
Assert.False(bindingContext.ModelState.IsValid);
Assert.Equal(1, bindingContext.ModelState["foo.Name"].Errors.Count);
Assert.Equal("This message comes from the [Required] attribute.", bindingContext.ModelState["foo.Name"].Errors[0].ErrorMessage);
}
public void SetProperty_SettingNonNullableValueTypeToNull_RequiredValidatorPresent_AddsModelError()
{
// Arrange
HttpActionContext context = ContextUtil.CreateActionContext();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForObject(new Person()),
ModelName = "foo"
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(o => o.PropertyName == "ValueTypeRequired");
ModelValidationNode validationNode = new ModelValidationNode(propertyMetadata, "foo.ValueTypeRequired");
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(null /* model */, validationNode);
ModelValidator requiredValidator = context.GetValidators(propertyMetadata).Where(v => v.IsRequired).FirstOrDefault();
TestableMutableObjectModelBinder testableBinder = new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(context, bindingContext, propertyMetadata, dtoResult, requiredValidator);
// Assert
Assert.False(bindingContext.ModelState.IsValid);
Assert.Equal("Sample message", bindingContext.ModelState["foo.ValueTypeRequired"].Errors[0].ErrorMessage);
}
public void SetProperty_SettingNonNullableValueTypeToNull_RequiredValidatorNotPresent_RegistersValidationCallback()
{
// Arrange
HttpActionContext context = ContextUtil.CreateActionContext();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForObject(new Person()),
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(o => o.PropertyName == "DateOfBirth");
ModelValidationNode validationNode = new ModelValidationNode(propertyMetadata, "foo");
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(null /* model */, validationNode);
ModelValidator requiredValidator = context.GetValidators(propertyMetadata).Where(v => v.IsRequired).FirstOrDefault();
TestableMutableObjectModelBinder testableBinder = new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(context, bindingContext, propertyMetadata, dtoResult, requiredValidator);
// Assert
Assert.True(context.ModelState.IsValid);
validationNode.Validate(context, bindingContext.ValidationNode);
Assert.False(context.ModelState.IsValid);
}
public void SetProperty_PropertyIsSettable_SetterThrows_RecordsError()
{
// Arrange
Person model = new Person
{
DateOfBirth = new DateTime(1900, 1, 1)
};
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForObject(model)
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(o => o.PropertyName == "DateOfDeath");
ModelValidationNode validationNode = new ModelValidationNode(propertyMetadata, "foo");
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(new DateTime(1800, 1, 1), validationNode);
TestableMutableObjectModelBinder testableBinder = new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(null, bindingContext, propertyMetadata, dtoResult, requiredValidator: null);
// Assert
Assert.Equal("Date of death can't be before date of birth." + Environment.NewLine
+ "Parameter name: value",
bindingContext.ModelState["foo"].Errors[0].Exception.Message);
}
public void SetProperty_PropertyIsSettable_CallsSetter()
{
// Arrange
Person model = new Person();
HttpActionContext context = ContextUtil.CreateActionContext();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForObject(model)
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(o => o.PropertyName == "DateOfBirth");
ModelValidationNode validationNode = new ModelValidationNode(propertyMetadata, "foo");
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(new DateTime(2001, 1, 1), validationNode);
ModelValidator requiredValidator = context.GetValidators(propertyMetadata).Where(v => v.IsRequired).FirstOrDefault();
TestableMutableObjectModelBinder testableBinder = new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(context, bindingContext, propertyMetadata, dtoResult, requiredValidator);
// Assert
validationNode.Validate(context);
Assert.True(context.ModelState.IsValid);
Assert.Equal(new DateTime(2001, 1, 1), model.DateOfBirth);
}
public void SetProperty_PropertyIsReadOnly_DoesNothing()
{
// Arrange
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForType(typeof(Person))
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(o => o.PropertyName == "NonUpdateableProperty");
ModelValidationNode validationNode = new ModelValidationNode(propertyMetadata, "foo");
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(null /* model */, validationNode);
TestableMutableObjectModelBinder testableBinder = new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(null, bindingContext, propertyMetadata, dtoResult, requiredValidator: null);
// Assert
// If didn't throw, success!
}
public void SetProperty_PropertyHasDefaultValue_SetsDefaultValue()
{
// Arrange
HttpActionContext context = ContextUtil.CreateActionContext();
ModelBindingContext bindingContext = new ModelBindingContext
{
ModelMetadata = GetMetadataForObject(new Person())
};
ModelMetadata propertyMetadata = bindingContext.ModelMetadata.Properties.Single(o => o.PropertyName == "PropertyWithDefaultValue");
ModelValidationNode validationNode = new ModelValidationNode(propertyMetadata, "foo");
ComplexModelDtoResult dtoResult = new ComplexModelDtoResult(null /* model */, validationNode);
ModelValidator requiredValidator = context.GetValidators(propertyMetadata).Where(v => v.IsRequired).FirstOrDefault();
TestableMutableObjectModelBinder testableBinder = new TestableMutableObjectModelBinder();
// Act
testableBinder.SetPropertyPublic(context, bindingContext, propertyMetadata, dtoResult, requiredValidator);
// Assert
var person = Assert.IsType<Person>(bindingContext.Model);
Assert.Equal(123.456m, person.PropertyWithDefaultValue);
Assert.True(context.ModelState.IsValid);
}
protected virtual void SetProperty(HttpActionContext actionContext, ModelBindingContext bindingContext, ModelMetadata propertyMetadata, ComplexModelDtoResult dtoResult, ModelValidator requiredValidator)
{
PropertyDescriptor propertyDescriptor = TypeDescriptorHelper.Get(bindingContext.ModelType).GetProperties().Find(propertyMetadata.PropertyName, true /* ignoreCase */);
if (propertyDescriptor == null || propertyDescriptor.IsReadOnly)
{
return; // nothing to do
}
object value = dtoResult.Model ?? GetPropertyDefaultValue(propertyDescriptor);
propertyMetadata.Model = value;
// 'Required' validators need to run first so that we can provide useful error messages if
// the property setters throw, e.g. if we're setting entity keys to null. See comments in
// DefaultModelBinder.SetProperty() for more information.
if (value == null)
{
string modelStateKey = dtoResult.ValidationNode.ModelStateKey;
if (bindingContext.ModelState.IsValidField(modelStateKey))
{
if (requiredValidator != null)
{
foreach (ModelValidationResult validationResult in requiredValidator.Validate(propertyMetadata, bindingContext.Model))
{
bindingContext.ModelState.AddModelError(modelStateKey, validationResult.Message);
}
}
}
}
if (value != null || TypeHelper.TypeAllowsNullValue(propertyDescriptor.PropertyType))
{
try
{
propertyDescriptor.SetValue(bindingContext.Model, value);
}
catch (Exception ex)
{
// don't display a duplicate error message if a binding error has already occurred for this field
string modelStateKey = dtoResult.ValidationNode.ModelStateKey;
if (bindingContext.ModelState.IsValidField(modelStateKey))
{
bindingContext.ModelState.AddModelError(modelStateKey, ex);
}
}
}
else
{
// trying to set a non-nullable value type to null, need to make sure there's a message
string modelStateKey = dtoResult.ValidationNode.ModelStateKey;
if (bindingContext.ModelState.IsValidField(modelStateKey))
{
dtoResult.ValidationNode.Validated += CreateNullCheckFailedHandler(propertyMetadata, value);
}
}
}
public void BindModel()
{
// Arrange
MyModel model = new MyModel();
ModelMetadata modelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(() => model, typeof(MyModel));
ComplexModelDto dto = new ComplexModelDto(modelMetadata, modelMetadata.Properties);
Mock <IModelBinder> mockStringBinder = new Mock <IModelBinder>();
Mock <IModelBinder> mockIntBinder = new Mock <IModelBinder>();
Mock <IModelBinder> mockDateTimeBinder = new Mock <IModelBinder>();
HttpActionContext context = ContextUtil.CreateActionContext();
context.ControllerContext.Configuration.Services.ReplaceRange(typeof(ModelBinderProvider),
new ModelBinderProvider[] {
new SimpleModelBinderProvider(typeof(string), mockStringBinder.Object)
{
SuppressPrefixCheck = true
},
new SimpleModelBinderProvider(typeof(int), mockIntBinder.Object)
{
SuppressPrefixCheck = true
},
new SimpleModelBinderProvider(typeof(DateTime), mockDateTimeBinder.Object)
{
SuppressPrefixCheck = true
}
});
mockStringBinder
.Setup(b => b.BindModel(context, It.IsAny <ModelBindingContext>()))
.Returns((HttpActionContext ec, ModelBindingContext mbc) =>
{
Assert.Equal(typeof(string), mbc.ModelType);
Assert.Equal("theModel.StringProperty", mbc.ModelName);
mbc.ValidationNode = new ModelValidationNode(mbc.ModelMetadata, "theModel.StringProperty");
mbc.Model = "someStringValue";
return(true);
});
mockIntBinder
.Setup(b => b.BindModel(context, It.IsAny <ModelBindingContext>()))
.Returns((HttpActionContext ec, ModelBindingContext mbc) =>
{
Assert.Equal(typeof(int), mbc.ModelType);
Assert.Equal("theModel.IntProperty", mbc.ModelName);
mbc.ValidationNode = new ModelValidationNode(mbc.ModelMetadata, "theModel.IntProperty");
mbc.Model = 42;
return(true);
});
mockDateTimeBinder
.Setup(b => b.BindModel(context, It.IsAny <ModelBindingContext>()))
.Returns((HttpActionContext ec, ModelBindingContext mbc) =>
{
Assert.Equal(typeof(DateTime), mbc.ModelType);
Assert.Equal("theModel.DateTimeProperty", mbc.ModelName);
return(false);
});
ModelBindingContext parentBindingContext = new ModelBindingContext
{
ModelMetadata = new EmptyModelMetadataProvider().GetMetadataForType(() => dto, typeof(ComplexModelDto)),
ModelName = "theModel",
};
ComplexModelDtoModelBinder binder = new ComplexModelDtoModelBinder();
// Act
bool retVal = binder.BindModel(context, parentBindingContext);
// Assert
Assert.True(retVal);
Assert.Equal(dto, parentBindingContext.Model);
ComplexModelDtoResult stringDtoResult = dto.Results[dto.PropertyMetadata.Where(m => m.ModelType == typeof(string)).First()];
Assert.Equal("someStringValue", stringDtoResult.Model);
Assert.Equal("theModel.StringProperty", stringDtoResult.ValidationNode.ModelStateKey);
ComplexModelDtoResult intDtoResult = dto.Results[dto.PropertyMetadata.Where(m => m.ModelType == typeof(int)).First()];
Assert.Equal(42, intDtoResult.Model);
Assert.Equal("theModel.IntProperty", intDtoResult.ValidationNode.ModelStateKey);
// Bind failed, so DateTime won't even be in the DTO dictionary
bool containsMissingKey = dto.Results.ContainsKey(dto.PropertyMetadata.Where(m => m.ModelType == typeof(DateTime)).First());
Assert.False(containsMissingKey);
}
protected virtual void SetProperty(HttpActionContext actionContext, ModelBindingContext bindingContext, ModelMetadata propertyMetadata, ComplexModelDtoResult dtoResult, ModelValidator requiredValidator)
{
PropertyDescriptor propertyDescriptor = TypeDescriptorHelper.Get(bindingContext.ModelType).GetProperties().Find(propertyMetadata.PropertyName, true /* ignoreCase */);
if (propertyDescriptor == null || propertyDescriptor.IsReadOnly)
{
return; // nothing to do
}
object value = dtoResult.Model ?? GetPropertyDefaultValue(propertyDescriptor);
propertyMetadata.Model = value;
// 'Required' validators need to run first so that we can provide useful error messages if
// the property setters throw, e.g. if we're setting entity keys to null. See comments in
// DefaultModelBinder.SetProperty() for more information.
if (value == null)
{
string modelStateKey = dtoResult.ValidationNode.ModelStateKey;
if (bindingContext.ModelState.IsValidField(modelStateKey))
{
RunValidator(requiredValidator, bindingContext, propertyMetadata, modelStateKey);
}
}
if (value != null || TypeHelper.TypeAllowsNullValue(propertyDescriptor.PropertyType))
{
try
{
propertyDescriptor.SetValue(bindingContext.Model, value);
}
catch (Exception ex)
{
// don't display a duplicate error message if a binding error has already occurred for this field
string modelStateKey = dtoResult.ValidationNode.ModelStateKey;
if (bindingContext.ModelState.IsValidField(modelStateKey))
{
bindingContext.ModelState.AddModelError(modelStateKey, ex);
}
}
}
else
{
// trying to set a non-nullable value type to null, need to make sure there's a message
string modelStateKey = dtoResult.ValidationNode.ModelStateKey;
if (bindingContext.ModelState.IsValidField(modelStateKey))
{
dtoResult.ValidationNode.Validated += CreateNullCheckFailedHandler(propertyMetadata, value);
}
}
}
