aspnetcore/test/Microsoft.AspNetCore.Mvc.Vi.../Rendering/ViewContextTests.cs

84 lines
3.8 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.IO;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc.Abstractions;
using Microsoft.AspNetCore.Mvc.ModelBinding;
using Microsoft.AspNetCore.Mvc.ViewEngines;
using Microsoft.AspNetCore.Mvc.ViewFeatures;
using Microsoft.AspNetCore.Routing;
using Moq;
using Xunit;
namespace Microsoft.AspNetCore.Mvc.Rendering
{
public class ViewContextTests
{
[Fact]
public void SettingViewData_AlsoUpdatesViewBag()
{
// Arrange
var httpContext = new DefaultHttpContext();
var originalViewData = new ViewDataDictionary(metadataProvider: new EmptyModelMetadataProvider());
var context = new ViewContext(
new ActionContext(new DefaultHttpContext(), new RouteData(), new ActionDescriptor()),
view: Mock.Of<IView>(),
viewData: originalViewData,
tempData: new TempDataDictionary(httpContext, Mock.Of<ITempDataProvider>()),
writer: TextWriter.Null,
htmlHelperOptions: new HtmlHelperOptions());
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"]);
}
[Fact]
public void CopyConstructor_CopiesExpectedProperties()
{
// Arrange
var httpContext = new DefaultHttpContext();
var originalContext = new ViewContext(
new ActionContext(httpContext, new RouteData(), new ActionDescriptor()),
view: Mock.Of<IView>(),
viewData: new ViewDataDictionary(metadataProvider: new EmptyModelMetadataProvider()),
tempData: new TempDataDictionary(httpContext, Mock.Of<ITempDataProvider>()),
writer: TextWriter.Null,
htmlHelperOptions: new HtmlHelperOptions());
var view = Mock.Of<IView>();
var viewData = new ViewDataDictionary(originalContext.ViewData);
var writer = new StringWriter();
// Act
var context = new ViewContext(originalContext, view, viewData, writer);
// Assert
Assert.Same(originalContext.ActionDescriptor, context.ActionDescriptor);
Assert.Equal(originalContext.ClientValidationEnabled, context.ClientValidationEnabled);
Assert.Same(originalContext.ExecutingFilePath, context.ExecutingFilePath);
Assert.Same(originalContext.FormContext, context.FormContext);
Assert.Equal(originalContext.Html5DateRenderingMode, context.Html5DateRenderingMode);
Assert.Same(originalContext.HttpContext, context.HttpContext);
Assert.Same(originalContext.ModelState, context.ModelState);
Assert.Same(originalContext.RouteData, context.RouteData);
Assert.Same(originalContext.TempData, context.TempData);
Assert.Same(originalContext.ValidationMessageElement, context.ValidationMessageElement);
Assert.Same(originalContext.ValidationSummaryMessageElement, context.ValidationSummaryMessageElement);
Assert.Same(view, context.View);
Assert.Same(viewData, context.ViewData);
Assert.Same(writer, context.Writer);
}
}
}