aspnetcore/test/Microsoft.AspNet.Mvc.ViewFe.../Rendering/ViewContextTests.cs

39 lines
1.5 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 Microsoft.AspNet.Mvc.ModelBinding;
using Xunit;
namespace Microsoft.AspNet.Mvc.Rendering
{
public class ViewContextTests
{
[Fact]
public void SettingViewData_AlsoUpdatesViewBag()
{
// Arrange (eventually passing null to these consturctors will throw)
var context = new ViewContext(
new ActionContext(null, null, null),
view: null,
viewData: null,
tempData: null,
writer: null,
htmlHelperOptions: new HtmlHelperOptions());
var originalViewData = context.ViewData = new ViewDataDictionary(metadataProvider: new EmptyModelMetadataProvider());
var replacementViewData = new ViewDataDictionary(metadataProvider: new EmptyModelMetadataProvider());
// Act
context.ViewBag.Hello = "goodbye";
context.ViewData = replacementViewData;
context.ViewBag.Another = "property";
// Assert
Assert.NotSame(originalViewData, context.ViewData);
Assert.Same(replacementViewData, context.ViewData);
Assert.Null(context.ViewBag.Hello);
Assert.Equal("property", context.ViewBag.Another);
Assert.Equal("property", context.ViewData["Another"]);
}
}
}