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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Reflection;
using Microsoft.AspNetCore.InternalTesting;
using Microsoft.Extensions.Logging;
using Xunit.Abstractions;
namespace Microsoft.AspNetCore.Mvc.FunctionalTests;
public class TagHelpersTest : LoggedTest
{
// Some tests require comparing the actual response body against an expected response baseline
// so they require a reference to the assembly on which the resources are located, in order to
// make the tests less verbose, we get a reference to the assembly with the resources and we
// use it on all the rest of the tests.
private static readonly Assembly _resourcesAssembly = typeof(TagHelpersTest).GetTypeInfo().Assembly;
protected override void Initialize(TestContext context, MethodInfo methodInfo, object[] testMethodArguments, ITestOutputHelper testOutputHelper)
{
base.Initialize(context, methodInfo, testMethodArguments, testOutputHelper);
Factory = new MvcTestFixture<TagHelpersWebSite.Startup>(LoggerFactory);
EncodedFactory = new MvcEncodedTestFixture<TagHelpersWebSite.Startup>(LoggerFactory);
Client = Factory.CreateDefaultClient();
EncodedClient = EncodedFactory.CreateDefaultClient();
}
public override void Dispose()
{
Factory.Dispose();
base.Dispose();
}
public MvcTestFixture<TagHelpersWebSite.Startup> Factory { get; private set; }
public MvcEncodedTestFixture<TagHelpersWebSite.Startup> EncodedFactory { get; private set; }
public HttpClient Client { get; private set; }
public HttpClient EncodedClient { get; private set; }
[Theory]
[InlineData("Index")]
[InlineData("About")]
[InlineData("Help")]
[InlineData("UnboundDynamicAttributes")]
public async Task CanRenderViewsWithTagHelpers(string action)
{
// Arrange
var expectedMediaType = MediaTypeHeaderValue.Parse("text/html; charset=utf-8");
var outputFile = "compiler/resources/TagHelpersWebSite.Home." + action + ".html";
var expectedContent =
await ResourceFile.ReadResourceAsync(_resourcesAssembly, outputFile, sourceFile: false);
// Act
// The host is not important as everything runs in memory and tests are isolated from each other.
var response = await Client.GetAsync("http://localhost/Home/" + action);
// Assert
Assert.Equal(HttpStatusCode.OK, response.StatusCode);
Assert.Equal(expectedMediaType, response.Content.Headers.ContentType);
var responseContent = await response.Content.ReadAsStringAsync();
ResourceFile.UpdateOrVerify(_resourcesAssembly, outputFile, expectedContent, responseContent);
}
[ConditionalTheory(Skip = "https://github.com/dotnet/aspnetcore/issues/10423")]
[InlineData("GlobbingTagHelpers")]
[InlineData("ViewComponentTagHelpers")]
public Task CanRenderViewsWithTagHelpersNotReadyForHelix(string action) => CanRenderViewsWithTagHelpers(action);
[Fact]
public async Task GivesCorrectCallstackForSyncronousCalls()
{
// Regression test for https://github.com/dotnet/aspnetcore/issues/15367
// Arrange
var exception = await Assert.ThrowsAsync<HttpRequestException>(async () => await Client.GetAsync("http://localhost/Home/MyHtml"));
// Assert
Assert.Equal("Should be visible", exception.InnerException.InnerException.Message);
}
[Fact]
public async Task CanRenderViewsWithTagHelpersAndUnboundDynamicAttributes_Encoded()
{
// Arrange
var expectedMediaType = MediaTypeHeaderValue.Parse("text/html; charset=utf-8");
var outputFile = "compiler/resources/TagHelpersWebSite.Home.UnboundDynamicAttributes.Encoded.html";
var expectedContent =
await ResourceFile.ReadResourceAsync(_resourcesAssembly, outputFile, sourceFile: false);
// Act
// The host is not important as everything runs in memory and tests are isolated from each other.
var response = await EncodedClient.GetAsync("http://localhost/Home/UnboundDynamicAttributes");
// Assert
Assert.Equal(HttpStatusCode.OK, response.StatusCode);
Assert.Equal(expectedMediaType, response.Content.Headers.ContentType);
var responseContent = await response.Content.ReadAsStringAsync();
ResourceFile.UpdateOrVerify(_resourcesAssembly, outputFile, expectedContent, responseContent);
}
[Fact]
public async Task ReRegisteringAntiforgeryTokenInsideFormTagHelper_DoesNotAddDuplicateAntiforgeryTokenFields()
{
// Arrange
var expectedMediaType = MediaTypeHeaderValue.Parse("text/html; charset=utf-8");
var outputFile = "compiler/resources/TagHelpersWebSite.Employee.DuplicateAntiforgeryTokenRegistration.html";
var expectedContent =
await ResourceFile.ReadResourceAsync(_resourcesAssembly, outputFile, sourceFile: false);
// Act
var response = await Client.GetAsync("http://localhost/Employee/DuplicateAntiforgeryTokenRegistration");
var responseContent = await response.Content.ReadAsStringAsync();
// Assert
Assert.Equal(HttpStatusCode.OK, response.StatusCode);
Assert.Equal(expectedMediaType, response.Content.Headers.ContentType);
responseContent = responseContent.Trim();
var forgeryToken = AntiforgeryTestHelper.RetrieveAntiforgeryToken(
responseContent, "/Employee/DuplicateAntiforgeryTokenRegistration");
ResourceFile.UpdateOrVerify(_resourcesAssembly, outputFile, expectedContent, responseContent, forgeryToken);
}
public static TheoryData<string, string> TagHelpersAreInheritedFromViewImportsPagesData
{
get
{
// action, expected
return new TheoryData<string, string>
{
{
"NestedViewImportsTagHelper",
@"<root>root-content</root>
<nested>nested-content</nested>"
},
{
"ViewWithLayoutAndNestedTagHelper",
@"layout:<root>root-content</root>
<nested>nested-content</nested>"
},
{
"ViewWithInheritedRemoveTagHelper",
@"layout:<root>root-content</root>
page:<root/>
<nested>nested-content</nested>"
},
{
"ViewWithInheritedTagHelperPrefix",
@"layout:<root>root-content</root>
page:<root>root-content</root>"
},
{
"ViewWithOverriddenTagHelperPrefix",
@"layout:<root>root-content</root>
page:<root>root-content</root>"
},
{
"ViewWithNestedInheritedTagHelperPrefix",
@"layout:<root>root-content</root>
page:<root>root-content</root>"
},
{
"ViewWithNestedOverriddenTagHelperPrefix",
@"layout:<root>root-content</root>
page:<root>root-content</root>"
},
};
}
}
[Theory]
[MemberData(nameof(TagHelpersAreInheritedFromViewImportsPagesData))]
public async Task TagHelpersAreInheritedFromViewImportsPages(string action, string expected)
{
// Arrange & Act
var result = await Client.GetStringAsync("http://localhost/Home/" + action);
// Assert
Assert.Equal(expected, result.Trim(), ignoreLineEndingDifferences: true);
}
[Fact]
public async Task DefaultInheritedTagsCanBeRemoved()
{
// Arrange
var expected =
@"<a href=""~/VirtualPath"">Virtual path</a>";
var result = await Client.GetStringAsync("RemoveDefaultInheritedTagHelpers");
// Assert
Assert.Equal(expected, result.Trim(), ignoreLineEndingDifferences: true);
}
[Fact]
public async Task ViewsWithModelMetadataAttributes_CanRenderForm()
{
// Arrange
var outputFile = "compiler/resources/TagHelpersWebSite.Employee.Create.html";
var expectedContent =
await ResourceFile.ReadResourceAsync(_resourcesAssembly, outputFile, sourceFile: false);
// Act
var response = await Client.GetAsync("http://localhost/Employee/Create");
// Assert
Assert.Equal(HttpStatusCode.OK, response.StatusCode);
var responseContent = await response.Content.ReadAsStringAsync();
ResourceFile.UpdateOrVerify(_resourcesAssembly, outputFile, expectedContent, responseContent);
}
[Fact]
public async Task ViewsWithModelMetadataAttributes_CanRenderPostedValue()
{
// Arrange
var outputFile = "compiler/resources/TagHelpersWebSite.Employee.Details.AfterCreate.html";
var expectedContent =
await ResourceFile.ReadResourceAsync(_resourcesAssembly, outputFile, sourceFile: false);
var validPostValues = new Dictionary<string, string>
{
{ "FullName", "Boo" },
{ "Gender", "M" },
{ "Age", "22" },
{ "EmployeeId", "0" },
{ "JoinDate", "2014-12-01" },
{ "Email", "a@b.com" },
};
var postContent = new FormUrlEncodedContent(validPostValues);
// Act
var response = await Client.PostAsync("http://localhost/Employee/Create", postContent);
// Assert
Assert.Equal(HttpStatusCode.OK, response.StatusCode);
var responseContent = await response.Content.ReadAsStringAsync();
ResourceFile.UpdateOrVerify(_resourcesAssembly, outputFile, expectedContent, responseContent);
}
[Fact]
public async Task ViewsWithModelMetadataAttributes_CanHandleInvalidData()
{
// Arrange
var outputFile = "compiler/resources/TagHelpersWebSite.Employee.Create.Invalid.html";
var expectedContent =
await ResourceFile.ReadResourceAsync(_resourcesAssembly, outputFile, sourceFile: false);
var validPostValues = new Dictionary<string, string>
{
{ "FullName", "Boo" },
{ "Gender", "M" },
{ "Age", "1000" },
{ "EmployeeId", "0" },
{ "Email", "a@b.com" },
{ "Salary", "z" },
};
var postContent = new FormUrlEncodedContent(validPostValues);
// Act
var response = await Client.PostAsync("http://localhost/Employee/Create", postContent);
// Assert
Assert.Equal(HttpStatusCode.OK, response.StatusCode);
var responseContent = await response.Content.ReadAsStringAsync();
ResourceFile.UpdateOrVerify(_resourcesAssembly, outputFile, expectedContent, responseContent);
}
[Theory]
[InlineData("Index")]
[InlineData("CustomEncoder")]
[InlineData("NullEncoder")]
[InlineData("TwoEncoders")]
[InlineData("ThreeEncoders")]
public async Task EncodersPages_ReturnExpectedContent(string actionName)
{
// Arrange
var outputFile = $"compiler/resources/TagHelpersWebSite.Encoders.{ actionName }.html";
var expectedContent =
await ResourceFile.ReadResourceAsync(_resourcesAssembly, outputFile, sourceFile: false);
// Act
var response = await Client.GetAsync($"/Encoders/{ actionName }");
// Assert
Assert.Equal(HttpStatusCode.OK, response.StatusCode);
var responseContent = await response.Content.ReadAsStringAsync();
ResourceFile.UpdateOrVerify(_resourcesAssembly, outputFile, expectedContent, responseContent);
}
}
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