public void GetValidatorsThrowsIfMetadataIsNull() {
// Arrange
DataErrorInfoModelValidatorProvider validatorProvider = new DataErrorInfoModelValidatorProvider();
// Act & assert
ExceptionHelper.ExpectArgumentNullException(
delegate {
validatorProvider.GetValidators(null, new ControllerContext());
}, "metadata");
}
public void GetValidatorsThrowsIfContextIsNull() {
// Arrange
DataErrorInfoModelValidatorProvider validatorProvider = new DataErrorInfoModelValidatorProvider();
ModelMetadata metadata = _metadataProvider.GetMetadataForType(null, typeof(DataErrorInfo1));
// Act & assert
ExceptionHelper.ExpectArgumentNullException(
delegate {
validatorProvider.GetValidators(metadata, null);
}, "context");
}
public void GetValidatorsReturnsEmptyCollectionIfTypeNotIDataErrorInfo() {
// Arrange
DataErrorInfoModelValidatorProvider validatorProvider = new DataErrorInfoModelValidatorProvider();
object model = new object();
ModelMetadata metadata = _metadataProvider.GetMetadataForType(() => model, typeof(object));
// Act
ModelValidator[] validators = validatorProvider.GetValidators(metadata, new ControllerContext()).ToArray();
// Assert
Assert.AreEqual(0, validators.Length);
}
public void GetValidatorsReturnsValidatorForIDataErrorInfoRootType() {
// Arrange
DataErrorInfoModelValidatorProvider validatorProvider = new DataErrorInfoModelValidatorProvider();
DataErrorInfo1 model = new DataErrorInfo1();
ModelMetadata metadata = _metadataProvider.GetMetadataForType(() => model, typeof(DataErrorInfo1));
Type[] expectedTypes = new Type[] {
typeof(DataErrorInfoModelValidatorProvider.DataErrorInfoClassModelValidator)
};
// Act
Type[] actualTypes = validatorProvider.GetValidators(metadata, new ControllerContext()).Select(v => v.GetType()).ToArray();
// Assert
CollectionAssert.AreEqual(expectedTypes, actualTypes);
}
public void PropertyValidator_Validate_DoesNotReadPropertyValue() {
// Arrange
ObservableModel model = new ObservableModel();
ModelMetadata metadata = _metadataProvider.GetMetadataForProperty(() => model.TheProperty, typeof(ObservableModel), "TheProperty");
ControllerContext controllerContext = new ControllerContext();
// Act
ModelValidator[] validators = new DataErrorInfoModelValidatorProvider().GetValidators(metadata, controllerContext).ToArray();
ModelValidationResult[] results = validators.SelectMany(o => o.Validate(model)).ToArray();
// Assert
CollectionAssert.AreEqual(new Type[] { typeof(DataErrorInfoModelValidatorProvider.DataErrorInfoPropertyModelValidator) }, Array.ConvertAll(validators, o => o.GetType()), "Provider did not return expected validator.");
CollectionAssert.AreEquivalent(new string[] { "TheProperty" }, model.GetColumnNamesPassed(), "Model.get_Item() was not called as expected.");
Assert.AreEqual(0, results.Length);
Assert.IsFalse(model.PropertyWasRead(), "Property should not have been read by provider or validator.");
}
public ActionResult Index()
{
ModelValidatorProvider validatorProvider = new DataErrorInfoModelValidatorProvider();
return View(GetValidators(typeof(Contact), validatorProvider));
}