aspnetcore/test/Microsoft.AspNetCore.Mvc.Vi.../Internal/ViewDataAttributeApplicatio...

100 lines
3.5 KiB
C#

// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.Linq;
using System.Reflection;
using Microsoft.AspNetCore.Mvc.ApplicationModels;
using Microsoft.AspNetCore.Mvc.Internal;
using Microsoft.AspNetCore.Mvc.ModelBinding;
using Microsoft.Extensions.Options;
using Xunit;
namespace Microsoft.AspNetCore.Mvc.ViewFeatures.Internal
{
public class ViewDataAttributeApplicationModelProviderTest
{
[Fact]
public void OnProvidersExecuting_DoesNotAddFilter_IfTypeHasNoViewDataProperties()
{
// Arrange
var type = typeof(TestController_NoViewDataProperties);
var provider = new ViewDataAttributeApplicationModelProvider();
var context = GetContext(type);
// Act
provider.OnProvidersExecuting(context);
// Assert
var controller = Assert.Single(context.Result.Controllers);
Assert.Empty(controller.Filters);
}
[Fact]
public void AddsViewDataPropertyFilter_ForViewDataAttributeProperties()
{
// Arrange
var type = typeof(TestController_NullableNonPrimitiveViewDataProperty);
var provider = new ViewDataAttributeApplicationModelProvider();
var context = GetContext(type);
// Act
provider.OnProvidersExecuting(context);
// Assert
var controller = Assert.Single(context.Result.Controllers);
Assert.IsType<ControllerViewDataAttributeFilterFactory>(Assert.Single(controller.Filters));
}
[Fact]
public void InitializeFilterFactory_WithExpectedPropertyHelpers_ForViewDataAttributeProperties()
{
// Arrange
var expected = typeof(TestController_OneViewDataProperty).GetProperty(nameof(TestController_OneViewDataProperty.Test2));
var provider = new ViewDataAttributeApplicationModelProvider();
var context = GetContext(typeof(TestController_OneViewDataProperty));
// Act
provider.OnProvidersExecuting(context);
var controller = context.Result.Controllers.SingleOrDefault();
var filter = Assert.IsType<ControllerViewDataAttributeFilterFactory>(Assert.Single(controller.Filters));
// Assert
Assert.NotNull(filter);
var property = Assert.Single(filter.Properties);
Assert.Same(expected, property.PropertyInfo);
Assert.Equal("Test2", property.Key);
}
private static ApplicationModelProviderContext GetContext(Type type)
{
var defaultProvider = new DefaultApplicationModelProvider(
Options.Create(new MvcOptions()),
new EmptyModelMetadataProvider());
var context = new ApplicationModelProviderContext(new[] { type.GetTypeInfo() });
defaultProvider.OnProvidersExecuting(context);
return context;
}
public class TestController_NoViewDataProperties
{
public DateTime? DateTime { get; set; }
}
public class TestController_NullableNonPrimitiveViewDataProperty
{
[ViewData]
public DateTime? DateTime { get; set; }
}
public class TestController_OneViewDataProperty
{
public string Test { get; set; }
[ViewData]
public string Test2 { get; set; }
}
}
}