public void ProcessResults_ValueTypePropertyWithBindRequired_SetToNull_CapturesException()
{
// Arrange
var model = new ModelWithBindRequired
{
Name = "original value",
Age = -20
};
var containerMetadata = GetMetadataForType(model.GetType());
var bindingContext = new ModelBindingContext()
{
Model = model,
ModelMetadata = containerMetadata,
ModelName = "theModel",
ModelState = new ModelStateDictionary(),
OperationBindingContext = new OperationBindingContext
{
MetadataProvider = TestModelMetadataProvider.CreateDefaultProvider(),
ValidatorProvider = Mock.Of<IModelValidatorProvider>()
}
};
var results = containerMetadata.Properties.ToDictionary(
property => property,
property => new ModelBindingResult(model: null, key: property.PropertyName, isModelSet: false));
var propertyMetadata = containerMetadata.Properties[nameof(model.Name)];
results[propertyMetadata] = new ModelBindingResult("John Doe", isModelSet: true, key: "theModel.Name");
// Attempt to set non-Nullable property to null. BindRequiredAttribute should not be relevant in this
// case because the binding exists.
propertyMetadata = containerMetadata.Properties[nameof(model.Age)];
results[propertyMetadata] = new ModelBindingResult(model: null, isModelSet: true, key: "theModel.Age");
var testableBinder = new TestableMutableObjectModelBinder();
var modelValidationNode = new ModelValidationNode(string.Empty, containerMetadata, model);
// Act
testableBinder.ProcessResults(bindingContext, results, modelValidationNode);
// Assert
var modelStateDictionary = bindingContext.ModelState;
Assert.False(modelStateDictionary.IsValid);
Assert.Equal(1, modelStateDictionary.Count);
// Check Age error.
ModelState modelState;
Assert.True(modelStateDictionary.TryGetValue("theModel.Age", out modelState));
Assert.Equal(ModelValidationState.Invalid, modelState.ValidationState);
var modelError = Assert.Single(modelState.Errors);
Assert.Equal(string.Empty, modelError.ErrorMessage);
Assert.IsType<NullReferenceException>(modelError.Exception);
}
public void ProcessResults_BindRequiredFieldMissing_RaisesModelError()
{
// Arrange
var model = new ModelWithBindRequired
{
Name = "original value",
Age = -20
};
var containerMetadata = GetMetadataForType(model.GetType());
var bindingContext = new ModelBindingContext
{
Model = model,
ModelMetadata = containerMetadata,
ModelName = "theModel",
OperationBindingContext = new OperationBindingContext
{
MetadataProvider = TestModelMetadataProvider.CreateDefaultProvider(),
ValidatorProvider = Mock.Of<IModelValidatorProvider>()
}
};
var results = containerMetadata.Properties.ToDictionary(
property => property,
property => new ModelBindingResult(model: null, key: property.PropertyName, isModelSet: false));
var nameProperty = containerMetadata.Properties[nameof(model.Name)];
results[nameProperty] = new ModelBindingResult("John Doe", isModelSet: true, key: string.Empty);
var modelValidationNode = new ModelValidationNode(string.Empty, containerMetadata, model);
var testableBinder = new TestableMutableObjectModelBinder();
// Act
testableBinder.ProcessResults(bindingContext, results, modelValidationNode);
// Assert
var modelStateDictionary = bindingContext.ModelState;
Assert.False(modelStateDictionary.IsValid);
Assert.Single(modelStateDictionary);
// Check Age error.
ModelState modelState;
Assert.True(modelStateDictionary.TryGetValue("theModel.Age", out modelState));
var modelError = Assert.Single(modelState.Errors);
Assert.Null(modelError.Exception);
Assert.NotNull(modelError.ErrorMessage);
Assert.Equal("A value for the 'Age' property was not provided.", modelError.ErrorMessage);
}
public async Task BindModelAsync_ValueTypePropertyWithBindRequired_SetToNull_CapturesException()
{
// Arrange
var model = new ModelWithBindRequired
{
Name = "original value",
Age = -20
};
var bindingContext = CreateContext(GetMetadataForType(model.GetType()), model);
var binder = CreateBinder(bindingContext.ModelMetadata);
// Attempt to set non-Nullable property to null. BindRequiredAttribute should not be relevant in this
// case because the property did have a result.
var property = GetMetadataForProperty(model.GetType(), nameof(ModelWithBindRequired.Age));
binder.Results[property] = ModelBindingResult.Success(model: null);
// Act
await binder.BindModelAsync(bindingContext);
// Assert
var modelStateDictionary = bindingContext.ModelState;
Assert.False(modelStateDictionary.IsValid);
Assert.Equal(1, modelStateDictionary.Count);
// Check Age error.
ModelStateEntry entry;
Assert.True(modelStateDictionary.TryGetValue("theModel.Age", out entry));
Assert.Equal(ModelValidationState.Invalid, entry.ValidationState);
var modelError = Assert.Single(entry.Errors);
Assert.Equal(string.Empty, modelError.ErrorMessage);
Assert.IsType<NullReferenceException>(modelError.Exception);
}
public async Task BindModelAsync_BindRequiredFieldMissing_RaisesModelError()
{
// Arrange
var model = new ModelWithBindRequired
{
Name = "original value",
Age = -20
};
var property = GetMetadataForProperty(model.GetType(), nameof(ModelWithBindRequired.Age));
var bindingContext = CreateContext(GetMetadataForType(model.GetType()), model);
var binder = CreateBinder(bindingContext.ModelMetadata);
binder.Results[property] = ModelBindingResult.Failed();
// Act
await binder.BindModelAsync(bindingContext);
// Assert
var modelStateDictionary = bindingContext.ModelState;
Assert.False(modelStateDictionary.IsValid);
Assert.Single(modelStateDictionary);
// Check Age error.
ModelStateEntry entry;
Assert.True(modelStateDictionary.TryGetValue("theModel.Age", out entry));
var modelError = Assert.Single(entry.Errors);
Assert.Null(modelError.Exception);
Assert.NotNull(modelError.ErrorMessage);
Assert.Equal("A value for the 'Age' property was not provided.", modelError.ErrorMessage);
}
public void ProcessDto_BindRequiredFieldMissing_RaisesModelError()
{
// Arrange
var model = new ModelWithBindRequired
{
Name = "original value",
Age = -20
};
var containerMetadata = GetMetadataForType(model.GetType());
var bindingContext = new ModelBindingContext
{
Model = model,
ModelMetadata = containerMetadata,
ModelName = "theModel",
OperationBindingContext = new OperationBindingContext
{
MetadataProvider = TestModelMetadataProvider.CreateDefaultProvider(),
ValidatorProvider = Mock.Of<IModelValidatorProvider>()
}
};
var dto = new ComplexModelDto(containerMetadata, containerMetadata.Properties);
var nameProperty = dto.PropertyMetadata.Single(o => o.PropertyName == "Name");
dto.Results[nameProperty] = new ModelBindingResult(
"John Doe",
isModelSet: true,
key: "");
var modelValidationNode = new ModelValidationNode(string.Empty, containerMetadata, model);
var testableBinder = new TestableMutableObjectModelBinder();
// Act
testableBinder.ProcessDto(bindingContext, dto, modelValidationNode);
// Assert
var modelStateDictionary = bindingContext.ModelState;
Assert.False(modelStateDictionary.IsValid);
Assert.Single(modelStateDictionary);
// Check Age error.
ModelState modelState;
Assert.True(modelStateDictionary.TryGetValue("theModel.Age", out modelState));
var modelError = Assert.Single(modelState.Errors);
Assert.Null(modelError.Exception);
Assert.NotNull(modelError.ErrorMessage);
Assert.Equal("The 'Age' property is required.", modelError.ErrorMessage);
}
public void ProcessDto_BindRequiredFieldNull_RaisesModelError()
{
// Arrange
var model = new ModelWithBindRequired
{
Name = "original value",
Age = -20
};
var containerMetadata = GetMetadataForType(model.GetType());
var bindingContext = new ModelBindingContext()
{
Model = model,
ModelMetadata = containerMetadata,
ModelName = "theModel",
ModelState = new ModelStateDictionary(),
OperationBindingContext = new OperationBindingContext
{
MetadataProvider = TestModelMetadataProvider.CreateDefaultProvider(),
ValidatorProvider = Mock.Of<IModelValidatorProvider>()
}
};
var dto = new ComplexModelDto(containerMetadata, containerMetadata.Properties);
var testableBinder = new TestableMutableObjectModelBinder();
var propertyMetadata = dto.PropertyMetadata.Single(o => o.PropertyName == "Name");
dto.Results[propertyMetadata] = new ModelBindingResult(
"John Doe",
isModelSet: true,
key: "theModel.Name");
// Attempt to set non-Nullable property to null. BindRequiredAttribute should not be relevant in this
// case because the binding exists.
propertyMetadata = dto.PropertyMetadata.Single(o => o.PropertyName == "Age");
dto.Results[propertyMetadata] = new ModelBindingResult(
null,
isModelSet: true,
key: "theModel.Age");
// Act
testableBinder.ProcessDto(bindingContext, dto);
// Assert
var modelStateDictionary = bindingContext.ModelState;
Assert.False(modelStateDictionary.IsValid);
Assert.Equal(1, modelStateDictionary.Count);
// Check Age error.
ModelState modelState;
Assert.True(modelStateDictionary.TryGetValue("theModel.Age", out modelState));
Assert.Equal(ModelValidationState.Invalid, modelState.ValidationState);
var modelError = Assert.Single(modelState.Errors);
Assert.Null(modelError.Exception);
Assert.NotNull(modelError.ErrorMessage);
Assert.Equal("A value is required.", modelError.ErrorMessage);
}