internal static bool ValidateObject(object o, List<ValidationResultInfo> validationErrors, HttpActionContext actionContext)
{
// create a model validation node for the object
ModelMetadataProvider metadataProvider = actionContext.GetMetadataProvider();
string modelStateKey = String.Empty;
ModelValidationNode validationNode = CreateModelValidationNode(o, metadataProvider, actionContext.ModelState, modelStateKey);
validationNode.ValidateAllProperties = true;
// add the node to model state
ModelState modelState = new ModelState();
modelState.Value = new ValueProviderResult(o, String.Empty, CultureInfo.CurrentCulture);
actionContext.ModelState.Add(modelStateKey, modelState);
// invoke validation
validationNode.Validate(actionContext);
if (!actionContext.ModelState.IsValid)
{
foreach (var modelStateItem in actionContext.ModelState)
{
foreach (ModelError modelError in modelStateItem.Value.Errors)
{
validationErrors.Add(new ValidationResultInfo(modelError.ErrorMessage, new string[] { modelStateItem.Key }));
}
}
}
return actionContext.ModelState.IsValid;
}
public void OnActionExecuting_HandlesModelStateSuccess()
{
// Arrange
ModelState state = new ModelState();
_actionContext.ModelState.Add("m1", state);
// Act
_validater.OnActionExecuting(_actionContext);
// Assert
Assert.Null(_actionContext.Response);
}
public async Task OnActionExecuting_HandlesModelStateErrors()
{
// Arrange
ModelState state = new ModelState();
state.Errors.Add(new Exception("Model Error!"));
_actionContext.ModelState.Add("m1", state);
// Act
_validater.OnActionExecuting(_actionContext);
HttpError error = await _actionContext.Response.Content.ReadAsAsync<HttpError>();
// Assert
Assert.NotNull(error);
}
private static void CreateModelValidationNodeRecursive(object o, ModelValidationNode parentNode, ModelMetadataProvider metadataProvider, ModelMetadata metadata, ModelStateDictionary modelStateDictionary, string modelStateKey, HashSet<object> visited)
{
if (visited.Contains(o))
{
return;
}
visited.Add(o);
foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(o))
{
// append the current property name to the model state path
string propertyKey = modelStateKey;
if (propertyKey.Length > 0)
{
propertyKey += ".";
}
propertyKey += property.Name;
// create the node for this property and add to the parent node
object propertyValue = property.GetValue(o);
metadata = metadataProvider.GetMetadataForProperty(() =>
{
return propertyValue;
}, o.GetType(), property.Name);
ModelValidationNode childNode = new ModelValidationNode(metadata, propertyKey);
parentNode.ChildNodes.Add(childNode);
// add the property node to model state
ModelState modelState = new ModelState();
modelState.Value = new ValueProviderResult(propertyValue, null, CultureInfo.CurrentCulture);
modelStateDictionary.Add(propertyKey, modelState);
if (propertyValue != null)
{
CreateModelValidationNodeRecursive(propertyValue, childNode, metadataProvider, metadata, modelStateDictionary, propertyKey, visited);
}
}
}
public void ExecuteAsync_ReturnsCorrectResponse_WhenContentNegotiationSucceedsAndIncludeErrorDetailIsFalse()
{
// Arrange
ModelStateDictionary modelState = CreateModelState();
string expectedModelStateKey = "ModelStateKey";
string expectedModelStateErrorMessage = "ModelStateErrorMessage";
ModelState originalModelStateItem = new ModelState();
originalModelStateItem.Errors.Add(new ModelError(new InvalidOperationException(),
expectedModelStateErrorMessage));
modelState.Add(expectedModelStateKey, originalModelStateItem);
bool includeErrorDetail = false;
MediaTypeFormatter expectedFormatter = CreateFormatter();
MediaTypeHeaderValue expectedMediaType = CreateMediaType();
ContentNegotiationResult negotiationResult = new ContentNegotiationResult(expectedFormatter,
expectedMediaType);
using (HttpRequestMessage expectedRequest = CreateRequest())
{
IEnumerable<MediaTypeFormatter> expectedFormatters = CreateFormatters();
Mock<IContentNegotiator> spy = new Mock<IContentNegotiator>();
spy.Setup(n => n.Negotiate(typeof(HttpError), expectedRequest, expectedFormatters)).Returns(
negotiationResult);
IContentNegotiator contentNegotiator = spy.Object;
IHttpActionResult result = CreateProductUnderTest(modelState, includeErrorDetail, contentNegotiator,
expectedRequest, expectedFormatters);
// Act
Task<HttpResponseMessage> task = result.ExecuteAsync(CancellationToken.None);
// Assert
Assert.NotNull(task);
task.WaitUntilCompleted();
using (HttpResponseMessage response = task.Result)
{
Assert.NotNull(response);
Assert.Equal(HttpStatusCode.BadRequest, response.StatusCode);
HttpContent content = response.Content;
Assert.IsType<ObjectContent<HttpError>>(content);
ObjectContent<HttpError> typedContent = (ObjectContent<HttpError>)content;
HttpError error = (HttpError)typedContent.Value;
Assert.NotNull(error);
HttpError modelStateError = error.ModelState;
Assert.NotNull(modelStateError);
Assert.True(modelState.ContainsKey(expectedModelStateKey));
object modelStateValue = modelStateError[expectedModelStateKey];
Assert.IsType(typeof(string[]), modelStateValue);
string[] typedModelStateValue = (string[])modelStateValue;
Assert.Equal(1, typedModelStateValue.Length);
Assert.Same(expectedModelStateErrorMessage, typedModelStateValue[0]);
Assert.Same(expectedFormatter, typedContent.Formatter);
Assert.NotNull(typedContent.Headers);
Assert.Equal(expectedMediaType, typedContent.Headers.ContentType);
Assert.Same(expectedRequest, response.RequestMessage);
}
}
}
public void TranslateHttpResponseException_Unpacks_ModelState_Errors()
{
// Arrange
HttpRequestMessage request = new HttpRequestMessage
{
RequestUri = new Uri("http://localhost"),
Method = HttpMethod.Get
};
ModelStateDictionary modelStateDictionary = new ModelStateDictionary();
ModelState modelState1 = new ModelState();
modelState1.Errors.Add("modelState1.Error1");
modelState1.Errors.Add("modelState1.Error2");
modelStateDictionary["key1"] = modelState1;
ModelState modelState2 = new ModelState();
modelState2.Errors.Add("modelState2.Error1");
modelState2.Errors.Add("modelState2.Error2");
modelStateDictionary["key2"] = modelState2;
HttpError httpError = new HttpError(modelStateDictionary, includeErrorDetail: true);
HttpResponseMessage errorResponse = request.CreateResponse(HttpStatusCode.BadRequest);
errorResponse.Content = new ObjectContent<HttpError>(httpError, new JsonMediaTypeFormatter());
TraceRecord traceRecord = new TraceRecord(request, "System.Web.Http.Request", TraceLevel.Error)
{
Exception = new HttpResponseException(errorResponse)
};
// Act
new SystemDiagnosticsTraceWriter().TranslateHttpResponseException(traceRecord);
// Assert
Assert.Equal(TraceLevel.Warn, traceRecord.Level);
string message = ExtractModelStateErrorString(traceRecord.Message);
AssertContainsExactly(message, new Dictionary<string, string>()
{
{ "key1", "[modelState1.Error1, modelState1.Error2]" },
{ "key2", "[modelState2.Error1, modelState2.Error2]" },
});
}