public async Task BindParameter_WithEmptyData_BindsMutableAndNullableObjects(Type parameterType)
{
// Arrange
var argumentBinder = ModelBindingTestHelper.GetArgumentBinder();
var parameter = new ParameterDescriptor
{
Name = "Parameter1",
BindingInfo = new BindingInfo(),
ParameterType = parameterType
};
var operationContext = ModelBindingTestHelper.GetOperationBindingContext(request =>
{
request.QueryString = QueryString.Create("Parameter1", string.Empty);
});
var modelState = operationContext.ActionContext.ModelState;
// Act
var modelBindingResult = await argumentBinder.BindModelAsync(parameter, operationContext) ?? default(ModelBindingResult);
// Assert
// ModelBindingResult
Assert.True(modelBindingResult.IsModelSet);
// Model
Assert.Null(modelBindingResult.Model);
// ModelState
Assert.True(modelState.IsValid);
var key = Assert.Single(modelState.Keys);
Assert.Equal("Parameter1", key);
Assert.Equal(string.Empty, modelState[key].AttemptedValue);
Assert.Equal(new string[] { string.Empty }, modelState[key].RawValue);
Assert.Empty(modelState[key].Errors);
}
public async Task BindProperty_WithData_EmptyPrefix_GetsBound()
{
// Arrange
var argumentBinder = ModelBindingTestHelper.GetArgumentBinder();
var parameter = new ParameterDescriptor()
{
Name = "Parameter1",
BindingInfo = new BindingInfo(),
ParameterType = typeof(Person)
};
var operationContext = ModelBindingTestHelper.GetOperationBindingContext();
var modelState = operationContext.ActionContext.ModelState;
// Act
var modelBindingResult = await argumentBinder.BindModelAsync(parameter, operationContext) ?? default(ModelBindingResult);
// Assert
// ModelBindingResult
Assert.True(modelBindingResult.IsModelSet);
Assert.Equal(string.Empty, modelBindingResult.Key);
// Model
var boundPerson = Assert.IsType <Person>(modelBindingResult.Model);
Assert.NotNull(boundPerson.Address);
Assert.Equal("SomeStreet", boundPerson.Address.Street);
// ModelState
Assert.True(modelState.IsValid);
var key = Assert.Single(modelState.Keys);
Assert.Equal("Address.Street", key);
Assert.Equal(ModelValidationState.Valid, modelState[key].ValidationState);
Assert.NotNull(modelState[key].RawValue); // Value is set by test model binder, no need to validate it.
}
public async Task ModelMetaDataTypeAttribute_ValidBaseClass_NoModelStateErrors()
{
// Arrange
var input = "{ \"Name\": \"MVC\", \"Contact\":\"4258959019\", \"Category\":\"Technology\"," +
"\"CompanyName\":\"Microsoft\", \"Country\":\"USA\",\"Price\": 21, " +
"\"ProductDetails\": {\"Detail1\": \"d1\", \"Detail2\": \"d2\", \"Detail3\": \"d3\"}}";
var argumentBinder = ModelBindingTestHelper.GetArgumentBinder();
var parameter = new ParameterDescriptor()
{
Name = "Parameter1",
ParameterType = typeof(ProductViewModel),
BindingInfo = new BindingInfo()
{
BindingSource = BindingSource.Body
}
};
var operationContext = ModelBindingTestHelper.GetOperationBindingContext(
request =>
{
request.Body = new MemoryStream(Encoding.UTF8.GetBytes(input));
request.ContentType = "application/json;charset=utf-8";
});
var modelState = operationContext.ActionContext.ModelState;
// Act
var modelBindingResult = await argumentBinder.BindModelAsync(parameter, operationContext) ?? default(ModelBindingResult);
// Assert
Assert.True(modelBindingResult.IsModelSet);
var boundPerson = Assert.IsType <ProductViewModel>(modelBindingResult.Model);
Assert.True(modelState.IsValid);
Assert.NotNull(boundPerson);
}
public async Task ModelMetaDataTypeAttribute_ValidDerivedClass_NoModelStateErrors()
{
// Arrange
var input = "{ \"Name\": \"MVC\", \"Contact\":\"4258959019\", \"Category\":\"Technology\"," +
"\"CompanyName\":\"Microsoft\", \"Country\":\"USA\", \"Version\":\"2\"," +
"\"DatePurchased\": \"/Date(1297246301973)/\", \"Price\" : \"110\" }";
var argumentBinder = ModelBindingTestHelper.GetArgumentBinder();
var parameter = new ParameterDescriptor()
{
Name = "Parameter1",
BindingInfo = new BindingInfo()
{
BindingSource = BindingSource.Body
},
ParameterType = typeof(SoftwareViewModel)
};
var operationContext = ModelBindingTestHelper.GetOperationBindingContext(
request =>
{
request.Body = new MemoryStream(Encoding.UTF8.GetBytes(input));
request.ContentType = "application/json";
});
var modelState = operationContext.ActionContext.ModelState;
// Act
var modelBindingResult = await argumentBinder.BindModelAsync(parameter, operationContext) ?? default(ModelBindingResult);
// Assert
Assert.True(modelBindingResult.IsModelSet);
var boundPerson = Assert.IsType <SoftwareViewModel>(modelBindingResult.Model);
Assert.NotNull(boundPerson);
Assert.True(modelState.IsValid);
}
public async Task BindParameter_WithData_WithPrefix_GetsBound()
{
// Arrange
var argumentBinder = ModelBindingTestHelper.GetArgumentBinder();
var parameter = new ParameterDescriptor()
{
Name = "Parameter1",
BindingInfo = new BindingInfo()
{
BinderType = typeof(SuccessModelBinder),
BinderModelName = "CustomParameter"
},
ParameterType = typeof(Person2)
};
var operationContext = ModelBindingTestHelper.GetOperationBindingContext();
var modelState = operationContext.ActionContext.ModelState;
// Act
var modelBindingResult = await argumentBinder.BindModelAsync(parameter, operationContext) ?? default(ModelBindingResult);
// Assert
// ModelBindingResult
Assert.Equal("Success", modelBindingResult.Model);
Assert.Equal("CustomParameter", modelBindingResult.Key);
// ModelState
Assert.True(modelState.IsValid);
var key = Assert.Single(modelState.Keys);
Assert.Equal("CustomParameter", key);
Assert.Equal(ModelValidationState.Valid, modelState[key].ValidationState);
Assert.NotNull(modelState[key].RawValue); // Value is set by test model binder, no need to validate it.
}
public async Task BindParameterFromService_NoService_Throws()
{
// Arrange
var argumentBinder = ModelBindingTestHelper.GetArgumentBinder();
var parameter = new ParameterDescriptor
{
Name = "ControllerProperty",
BindingInfo = new BindingInfo
{
BindingSource = BindingSource.Services,
},
// Use a service type not available in DI.
ParameterType = typeof(IActionResult),
};
var operationContext = ModelBindingTestHelper.GetOperationBindingContext();
// Act & Assert
var exception = await Assert.ThrowsAsync <InvalidOperationException>(
() => argumentBinder.BindModelAsync(parameter, operationContext));
Assert.Contains(typeof(IActionResult).FullName, exception.Message);
}
public async Task BindParameter_NoData_BindsWithEmptyCollection()
{
// Arrange
var argumentBinder = ModelBindingTestHelper.GetArgumentBinder();
var parameter = new ParameterDescriptor
{
Name = "Parameter1",
BindingInfo = new BindingInfo
{
BinderModelName = "CustomParameter",
},
ParameterType = typeof(IFormCollection)
};
// No data is passed.
var operationContext = ModelBindingTestHelper.GetOperationBindingContext();
var modelState = operationContext.ActionContext.ModelState;
// Act
var modelBindingResult = await argumentBinder.BindModelAsync(parameter, operationContext) ?? default(ModelBindingResult);
// Assert
// ModelBindingResult
var collection = Assert.IsAssignableFrom <IFormCollection>(modelBindingResult.Model);
// ModelState
Assert.True(modelState.IsValid);
Assert.Empty(modelState);
// FormCollection
Assert.Empty(collection);
Assert.Empty(collection.Files);
Assert.Empty(collection.Keys);
}
public async Task KeyValuePairModelBinder_SimpleTypes_WithNoKey_AddsError()
{
// Arrange
var argumentBinder = ModelBindingTestHelper.GetArgumentBinder();
var parameter = new ParameterDescriptor
{
Name = "parameter",
ParameterType = typeof(KeyValuePair <string, int>)
};
var operationContext = ModelBindingTestHelper.GetOperationBindingContext(request =>
{
request.QueryString = new QueryString("?parameter.Value=10");
});
var modelState = operationContext.ActionContext.ModelState;
// Act
var modelBindingResult = await argumentBinder.BindModelAsync(parameter, operationContext) ?? default(ModelBindingResult);
// Assert
Assert.False(modelBindingResult.IsModelSet);
Assert.Equal(2, modelState.Count);
Assert.False(modelState.IsValid);
Assert.Equal(1, modelState.ErrorCount);
var entry = Assert.Single(modelState, kvp => kvp.Key == "parameter.Key").Value;
var error = Assert.Single(entry.Errors);
Assert.Null(error.Exception);
Assert.Equal("A value is required.", error.ErrorMessage);
entry = Assert.Single(modelState, kvp => kvp.Key == "parameter.Value").Value;
Assert.Empty(entry.Errors);
Assert.Equal("10", entry.AttemptedValue);
Assert.Equal("10", entry.RawValue);
}
public async Task TryUpdateModel_SettableArrayModel_WithPrefix_CreatesArray()
{
// Arrange
var operationContext = ModelBindingTestHelper.GetOperationBindingContext(request =>
{
request.QueryString = QueryString.Create("prefix.Address[0].Street", "SomeStreet");
});
var modelState = operationContext.ActionContext.ModelState;
var model = new Person4();
// Act
var result = await TryUpdateModel(model, "prefix", operationContext);
// Assert
Assert.True(result);
// Model
Assert.NotNull(model.Address);
Assert.Equal(1, model.Address.Length);
Assert.Equal("SomeStreet", model.Address[0].Street);
Assert.Null(model.Address[0].City);
// ModelState
Assert.True(modelState.IsValid);
var entry = Assert.Single(modelState);
Assert.Equal("prefix.Address[0].Street", entry.Key);
var state = entry.Value;
Assert.Equal("SomeStreet", state.AttemptedValue);
Assert.Equal("SomeStreet", state.RawValue);
Assert.Empty(state.Errors);
Assert.Equal(ModelValidationState.Valid, state.ValidationState);
}
public async Task CollectionModelBinder_BindsListOfComplexType_ExplicitPrefix_Success(string queryString)
{
// Arrange
var argumentBinder = ModelBindingTestHelper.GetArgumentBinder();
var parameter = new ParameterDescriptor()
{
Name = "parameter",
BindingInfo = new BindingInfo()
{
BinderModelName = "prefix",
},
ParameterType = typeof(List <Person>)
};
var operationContext = ModelBindingTestHelper.GetOperationBindingContext(request =>
{
request.QueryString = new QueryString(queryString);
});
var modelState = operationContext.ActionContext.ModelState;
// Act
var modelBindingResult = await argumentBinder.BindModelAsync(parameter, operationContext) ?? default(ModelBindingResult);
// Assert
Assert.True(modelBindingResult.IsModelSet);
var model = Assert.IsType <List <Person> >(modelBindingResult.Model);
Assert.Equal(10, model[0].Id);
Assert.Equal(11, model[1].Id);
Assert.Equal(2, modelState.Count);
Assert.Equal(0, modelState.ErrorCount);
Assert.True(modelState.IsValid);
}