public void NullCheckFailedHandler_ModelStateValid_CallbackReturnsNull_DoesNothing()
{
// Arrange
HttpActionContext context = ContextUtil.CreateActionContext();
ModelMetadata modelMetadata = GetMetadataForType(typeof(Person));
ModelValidationNode validationNode = new ModelValidationNode(modelMetadata, "foo");
ModelValidatedEventArgs e = new ModelValidatedEventArgs(context, null /* parentNode */);
// Act
ModelBinderErrorMessageProvider originalProvider = ModelBinderConfig.ValueRequiredErrorMessageProvider;
try
{
ModelBinderConfig.ValueRequiredErrorMessageProvider = (ec, mm, value) => null;
EventHandler <ModelValidatedEventArgs> handler = MutableObjectModelBinder.CreateNullCheckFailedHandler(modelMetadata, null /* incomingValue */);
handler(validationNode, e);
}
finally
{
ModelBinderConfig.ValueRequiredErrorMessageProvider = originalProvider;
}
// Assert
Assert.True(context.ModelState.IsValid);
}
public void NullCheckFailedHandler_ModelStateAlreadyInvalid_DoesNothing()
{
// Arrange
HttpActionContext context = ContextUtil.CreateActionContext();
context.ModelState.AddModelError("foo.bar", "Some existing error.");
ModelMetadata modelMetadata = GetMetadataForType(typeof(Person));
ModelValidationNode validationNode = new ModelValidationNode(modelMetadata, "foo");
ModelValidatedEventArgs e = new ModelValidatedEventArgs(
context,
null /* parentNode */
);
// Act
EventHandler <ModelValidatedEventArgs> handler =
MutableObjectModelBinder.CreateNullCheckFailedHandler(
modelMetadata,
null /* incomingValue */
);
handler(validationNode, e);
// Assert
Assert.False(context.ModelState.ContainsKey("foo"));
}
public void NullCheckFailedHandler_ModelStateValid_AddsErrorString()
{
// Arrange
HttpActionContext context = ContextUtil.CreateActionContext();
ModelMetadata modelMetadata = GetMetadataForType(typeof(Person));
ModelValidationNode validationNode = new ModelValidationNode(modelMetadata, "foo");
ModelValidatedEventArgs e = new ModelValidatedEventArgs(context, null /* parentNode */);
// Act
EventHandler <ModelValidatedEventArgs> handler = MutableObjectModelBinder.CreateNullCheckFailedHandler(modelMetadata, null /* incomingValue */);
handler(validationNode, e);
// Assert
Assert.True(context.ModelState.ContainsKey("foo"));
Assert.Equal("A value is required.", context.ModelState["foo"].Errors[0].ErrorMessage);
}