public void InvalidModelStateFilterAttribute_ShouldReturnTheResponseWithProperContentTypeIfTheModelStateIsNotValid()
{
//NOTE: This test might seems that we are here testing the framework
// stuff but we are not. We just make sure here that InvalidModelStateFilterAttribute
// really honors the conneg.
//Arange
var validateModelStateFilter = new InvalidModelStateFilterAttribute();
var request = new HttpRequestMessage();
request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
var actionContext = ContextUtil.GetHttpActionContext(request);
actionContext.ModelState.AddModelError("foo", "foo is invalid.");
//NOTE: Here, the response is being returned through the CreateErrorResponse extension
// method of the HttpRequestMessage object. What this basically does is
// to pass an HttpError instance to another extension method, CreateResponse<T>.
// The CreateResponse<T> method looks at the configuration instance
// (yes, config shouldn't be null) and gets the IContentNegotiator service
// through Services. If we create a HttpConfiguration object with its
// parameterless ctor, the negotiator will be the type of DefaultContentNegotiator.
// DefaultContentNegotiator should negotiate properly here.
//Act
validateModelStateFilter.OnActionExecuting(actionContext);
//Assert
Assert.NotNull(actionContext.Response);
Assert.True(actionContext.Response.Content.Headers.ContentType.MediaType.Equals("application/json", StringComparison.OrdinalIgnoreCase));
}
public void InvalidModelStateFilterAttribute_ShouldNotSetTheResponseIfTheModelStateIsValid()
{
//Arange
var validateModelStateFilter = new InvalidModelStateFilterAttribute();
var request = new HttpRequestMessage();
var actionContext = ContextUtil.GetHttpActionContext(request);
//Act
validateModelStateFilter.OnActionExecuting(actionContext);
//Assert
Assert.Null(actionContext.Response);
}
public void InvalidModelStateFilterAttribute_ShouldSetThe400ResponseIfTheModelStateIsNotValid()
{
//Arange
var validateModelStateFilter = new InvalidModelStateFilterAttribute();
var request = new HttpRequestMessage();
var actionContext = ContextUtil.GetHttpActionContext(request);
actionContext.ModelState.AddModelError("foo", "foo is invalid.");
//Act
validateModelStateFilter.OnActionExecuting(actionContext);
//Assert
Assert.NotNull(actionContext.Response);
Assert.Equal(HttpStatusCode.BadRequest, actionContext.Response.StatusCode);
}