public void TakeSurveyBinderOKWithValidData()
{
// Arrange
// 1 Set up a name/value collection containing all view input values
var formCollection = _mockData.SetTakeSurveyFormDataCompletedOK();
// 2 Set up a ValueProvider for the name/value collection
var valueProvider = new NameValueCollectionValueProvider(formCollection, null);
// 3 Get the Metadata from the ViewModel or class being bound
var metaData = ModelMetadataProviders.Current.GetMetadataForType(null, typeof(TakeSurveyViewModel));
// 4 Instantiate the bindingContext for the model binder
var bindingContext = new ModelBindingContext()
{
ModelName = "TakeSurvey",
ValueProvider = valueProvider,
ModelMetadata = metaData
};
// 5 Set up a mock Httpcontext and populate the Request["fieldname"].Return values
var mockHttpContext = new Mock<HttpContextBase>();
mockHttpContext.Setup(c => c.Request["SurveyId"]).Returns("3");
mockHttpContext.Setup(c => c.Request["item.QId_SeqNo"]).Returns("1_1,2_2");
mockHttpContext.Setup(c => c.Request["LikertScaleNumber_1_1"]).Returns("2");
mockHttpContext.Setup(c => c.Request["LikertScaleNumber_2_2"]).Returns("3");
// 6 Set up the ControllerContext, containing the HttpContext as as HttpContext property of the controllercontext
// Don't think we need to do this bit here, the formcollection has everything needed already, nothing needs to
// be supplied in addition.
ControllerContext controllerContext = new ControllerContext();
controllerContext.HttpContext = mockHttpContext.Object;
// 7 Instantiate the model Binder taking the ControllerContext and BindingContext as its parameters
var binder = new TakeSurveyModelbinder();
// Act
// 8 Execute the bindingContext BindModel method to test the binder
var result = (TakeSurveyViewModel) binder.BindModel(controllerContext, bindingContext);
// Assert
// 9 Check the values of the output viewModel / class
Assert.AreEqual(3, result.SurveyId, "Expected Survey3 to be returned");
Assert.AreEqual("2", result.Questions.First().Answer, "Expected question1 to have answer 2");
Assert.AreEqual("1_1", result.Questions.First().QId_SeqNo, "Expected question1 to have QId_seqNo of '1_1'");
Assert.AreEqual("3", result.Questions.Last().Answer, "Expected question2 to have answer 3");
Assert.AreEqual("2_2", result.Questions.Last().QId_SeqNo, "Expected question2 to have QId_SeqNo of '2_2'");
}
public void TakeSurveySetsModelStateToFalseWithInvalidData()
{
// Arrange
// 1 Set up a name/value collection containing all view input values
var formCollection = _mockData.SetTakeSurveyFormDataCompletedOK();
// 2 Set up a ValueProvider for the name/value collection
var valueProvider = new NameValueCollectionValueProvider(formCollection, null);
// 3 Get the Metadata from the ViewModel or class being bound
var metaData = ModelMetadataProviders.Current.GetMetadataForType(null, typeof(TakeSurveyViewModel));
// 4 Instantiate the bindingContext for the model binder
var bindingContext = new ModelBindingContext()
{
ModelName = "TakeSurvey",
ValueProvider = valueProvider,
ModelMetadata = metaData
};
// 5 Set up a mock Httpcontext and populate the Request["fieldname"].Return values
// with no response for question 1
var mockHttpContext = new Mock<HttpContextBase>();
mockHttpContext.Setup(c => c.Request["SurveyId"]).Returns("3");
mockHttpContext.Setup(c => c.Request["item.QId_SeqNo"]).Returns("1_1,2_2");
// mockHttpContext.Setup(c => c.Request["LikertScaleNumber_1_1"]).Returns("2");
mockHttpContext.Setup(c => c.Request["LikertScaleNumber_2_2"]).Returns("3");
// 6 Set up the ControllerContext, containing the HttpContext as as HttpContext property of the controllercontext
// Don't think we need to do this bit here, the formcollection has everything needed already, nothing needs to
// be supplied in addition.
ControllerContext controllerContext = new ControllerContext();
controllerContext.HttpContext = mockHttpContext.Object;
// 7 Instantiate the model Binder taking the ControllerContext and BindingContext as its parameters
var binder = new TakeSurveyModelbinder();
// Act
// 8 Execute the bindingContext BindModel method to test the binder
var result = (TakeSurveyViewModel)binder.BindModel(controllerContext, bindingContext);
// Assert
// 9 Check the values of the output viewModel / class
Assert.AreEqual(3, result.SurveyId, "Expected Survey3 to be returned");
Assert.AreEqual("3", result.Questions.Last().Answer, "Expected question2 to have answer 3");
Assert.AreEqual("2_2", result.Questions.Last().QId_SeqNo, "Expected question2 to have QId_SeqNo of '2_2'");
// Check the contents of the ModelState.
var modelErrors = bindingContext.ModelState.Values.First(); // Gives the Model level errors, if any
Assert.IsFalse(bindingContext.ModelState.IsValid, "Expected the ModelState to be invalid");
Assert.AreEqual(1, modelErrors.Errors.Count(), "Expected one Model Error (key='') in the ModelState");
var theError = modelErrors.Errors.First(); // OK as we only have one error anyway, confirmed by previous Assert.
Assert.AreEqual("You have not answered question 1", theError.ErrorMessage, "Expected message 'You have not answered question 1'");
}
