680 lines
24 KiB
C#
680 lines
24 KiB
C#
// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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using System.Threading.Tasks;
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using Microsoft.AspNet.Mvc.Rendering;
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using Microsoft.AspNet.PageExecutionInstrumentation;
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using Microsoft.AspNet.PipelineCore;
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using Microsoft.AspNet.Testing;
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using Moq;
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using Xunit;
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namespace Microsoft.AspNet.Mvc.Razor
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{
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public class RazorPageTest
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{
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private readonly RenderAsyncDelegate _nullRenderAsyncDelegate = async writer => { };
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[Fact]
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public async Task WritingScopesRedirectContentWrittenToViewContextWriter()
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{
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// Arrange
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var viewContext = CreateViewContext();
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var page = CreatePage(v =>
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{
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v.Write("Hello Prefix");
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v.StartWritingScope();
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v.Write("Hello from Output");
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v.ViewContext.Writer.Write("Hello from view context writer");
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var scopeValue = v.EndWritingScope();
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v.Write("From Scope: " + scopeValue.ToString());
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});
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// Act
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await page.ExecuteAsync();
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var pageOutput = page.Output.ToString();
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// Assert
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Assert.Equal("Hello PrefixFrom Scope: Hello from OutputHello from view context writer", pageOutput);
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}
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[Fact]
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public async Task WritingScopesRedirectsContentWrittenToOutput()
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{
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// Arrange
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var viewContext = CreateViewContext();
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var page = CreatePage(v =>
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{
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v.Write("Hello Prefix");
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v.StartWritingScope();
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v.Write("Hello In Scope");
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var scopeValue = v.EndWritingScope();
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v.Write("From Scope: " + scopeValue.ToString());
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});
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// Act
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await page.ExecuteAsync();
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var pageOutput = page.Output.ToString();
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// Assert
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Assert.Equal("Hello PrefixFrom Scope: Hello In Scope", pageOutput);
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}
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[Fact]
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public async Task WritingScopesCanNest()
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{
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// Arrange
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var viewContext = CreateViewContext();
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var page = CreatePage(v =>
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{
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v.Write("Hello Prefix");
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v.StartWritingScope();
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v.Write("Hello In Scope Pre Nest");
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v.StartWritingScope();
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v.Write("Hello In Nested Scope");
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var scopeValue1 = v.EndWritingScope();
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v.Write("Hello In Scope Post Nest");
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var scopeValue2 = v.EndWritingScope();
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v.Write("From Scopes: " + scopeValue2.ToString() + scopeValue1.ToString());
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});
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// Act
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await page.ExecuteAsync();
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var pageOutput = page.Output.ToString();
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// Assert
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Assert.Equal("Hello PrefixFrom Scopes: Hello In Scope Pre NestHello In Scope Post NestHello In Nested Scope", pageOutput);
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}
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[Fact]
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public async Task StartNewWritingScope_CannotFlushInWritingScope()
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{
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// Arrange
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var viewContext = CreateViewContext();
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var page = CreatePage(v =>
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{
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v.StartWritingScope();
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v.FlushAsync();
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});
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// Act
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var ex = await Assert.ThrowsAsync<InvalidOperationException>(
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() => page.ExecuteAsync());
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// Assert
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Assert.Equal("You cannot flush while inside a writing scope.", ex.Message);
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}
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[Fact]
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public async Task StartNewWritingScope_CannotEndWritingScopeWhenNoWritingScope()
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{
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// Arrange
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var viewContext = CreateViewContext();
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var page = CreatePage(v =>
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{
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v.EndWritingScope();
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});
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// Act
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var ex = await Assert.ThrowsAsync<InvalidOperationException>(
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() => page.ExecuteAsync());
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// Assert
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Assert.Equal("There is no active writing scope to end.", ex.Message);
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}
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[Fact]
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public async Task DefineSection_ThrowsIfSectionIsAlreadyDefined()
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{
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// Arrange
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var viewContext = CreateViewContext();
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var page = CreatePage(v =>
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{
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v.DefineSection("qux", _nullRenderAsyncDelegate);
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v.DefineSection("qux", _nullRenderAsyncDelegate);
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});
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// Act
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var ex = await Assert.ThrowsAsync<InvalidOperationException>(
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() => page.ExecuteAsync());
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// Assert
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Assert.Equal("Section 'qux' is already defined.", ex.Message);
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}
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[Fact]
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public async Task RenderSection_RendersSectionFromPreviousPage()
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{
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// Arrange
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var expected = "Hello world";
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var viewContext = CreateViewContext();
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var page = CreatePage(v =>
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{
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v.Write(v.RenderSection("bar"));
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});
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page.PreviousSectionWriters = new Dictionary<string, RenderAsyncDelegate>
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{
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{ "bar", writer => writer.WriteAsync(expected) }
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};
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// Act
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await page.ExecuteAsync();
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// Assert
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Assert.Equal(expected, page.RenderedContent);
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}
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[Fact]
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public async Task RenderSection_ThrowsIfPreviousSectionWritersIsNotSet()
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{
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// Arrange
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Exception ex = null;
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var page = CreatePage(v =>
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{
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ex = Assert.Throws<InvalidOperationException>(() => v.RenderSection("bar"));
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});
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// Act
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await page.ExecuteAsync();
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// Assert
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Assert.Equal("RenderSection can only be called from a layout page.",
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ex.Message);
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}
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[Fact]
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public async Task RenderSection_ThrowsIfRequiredSectionIsNotFound()
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{
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// Arrange
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var page = CreatePage(v =>
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{
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v.RenderSection("bar");
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});
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page.PreviousSectionWriters = new Dictionary<string, RenderAsyncDelegate>
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{
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{ "baz", _nullRenderAsyncDelegate }
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};
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// Act
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var ex = await Assert.ThrowsAsync<InvalidOperationException>(() => page.ExecuteAsync());
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// Assert
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Assert.Equal("Section 'bar' is not defined.", ex.Message);
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}
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[Fact]
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public void IsSectionDefined_ThrowsIfPreviousSectionWritersIsNotRegistered()
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{
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// Arrange
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var page = CreatePage(v => { });
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// Act and Assert
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ExceptionAssert.Throws<InvalidOperationException>(() => page.IsSectionDefined("foo"),
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"IsSectionDefined can only be called from a layout page.");
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}
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[Fact]
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public async Task IsSectionDefined_ReturnsFalseIfSectionNotDefined()
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{
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// Arrange
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bool? actual = null;
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var page = CreatePage(v =>
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{
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actual = v.IsSectionDefined("foo");
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v.RenderSection("baz");
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v.RenderBodyPublic();
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});
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page.PreviousSectionWriters = new Dictionary<string, RenderAsyncDelegate>
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{
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{ "baz", _nullRenderAsyncDelegate }
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};
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page.RenderBodyDelegate = CreateBodyAction("body-content");
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// Act
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await page.ExecuteAsync();
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// Assert
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Assert.Equal(false, actual);
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}
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[Fact]
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public async Task IsSectionDefined_ReturnsTrueIfSectionDefined()
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{
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// Arrange
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bool? actual = null;
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var page = CreatePage(v =>
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{
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actual = v.IsSectionDefined("baz");
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v.RenderSection("baz");
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v.RenderBodyPublic();
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});
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page.PreviousSectionWriters = new Dictionary<string, RenderAsyncDelegate>
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{
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{ "baz", _nullRenderAsyncDelegate }
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};
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page.RenderBodyDelegate = CreateBodyAction("body-content");
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// Act
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await page.ExecuteAsync();
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// Assert
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Assert.Equal(true, actual);
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}
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[Fact]
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public async Task RenderSection_ThrowsIfSectionIsRenderedMoreThanOnce()
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{
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// Arrange
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var expected = new HelperResult(action: null);
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var page = CreatePage(v =>
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{
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v.RenderSection("header");
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v.RenderSection("header");
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});
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page.PreviousSectionWriters = new Dictionary<string, RenderAsyncDelegate>
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{
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{ "header", _nullRenderAsyncDelegate }
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};
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// Act
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var ex = await Assert.ThrowsAsync<InvalidOperationException>(page.ExecuteAsync);
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// Assert
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Assert.Equal("The section named 'header' has already been rendered.", ex.Message);
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}
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[Fact]
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public async Task RenderSectionAsync_ThrowsIfSectionIsRenderedMoreThanOnce()
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{
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// Arrange
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var expected = new HelperResult(action: null);
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var page = CreatePage(async v =>
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{
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await v.RenderSectionAsync("header");
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await v.RenderSectionAsync("header");
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});
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page.PreviousSectionWriters = new Dictionary<string, RenderAsyncDelegate>
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{
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{ "header", _nullRenderAsyncDelegate }
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};
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// Act
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var ex = await Assert.ThrowsAsync<InvalidOperationException>(page.ExecuteAsync);
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// Assert
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Assert.Equal("The section named 'header' has already been rendered.", ex.Message);
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}
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[Fact]
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public async Task RenderSectionAsync_ThrowsIfSectionIsRenderedMoreThanOnce_WithSyncMethod()
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{
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// Arrange
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var expected = new HelperResult(action: null);
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var page = CreatePage(async v =>
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{
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v.RenderSection("header");
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await v.RenderSectionAsync("header");
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});
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page.PreviousSectionWriters = new Dictionary<string, RenderAsyncDelegate>
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{
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{ "header", _nullRenderAsyncDelegate }
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};
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// Act
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var ex = await Assert.ThrowsAsync<InvalidOperationException>(page.ExecuteAsync);
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// Assert
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Assert.Equal("The section named 'header' has already been rendered.", ex.Message);
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}
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[Fact]
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public async Task RenderSectionAsync_ThrowsIfNotInvokedFromLayoutPage()
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{
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// Arrange
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var expected = new HelperResult(action: null);
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var page = CreatePage(async v =>
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{
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await v.RenderSectionAsync("header");
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});
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// Act
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var ex = await Assert.ThrowsAsync<InvalidOperationException>(page.ExecuteAsync);
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// Assert
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Assert.Equal("RenderSectionAsync can only be called from a layout page.", ex.Message);
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}
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[Fact]
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public async Task EnsureBodyAndSectionsWereRendered_ThrowsIfDefinedSectionIsNotRendered()
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{
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// Arrange
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var page = CreatePage(v =>
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{
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v.RenderSection("sectionA");
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});
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page.PreviousSectionWriters = new Dictionary<string, RenderAsyncDelegate>
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{
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{ "header", _nullRenderAsyncDelegate },
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{ "footer", _nullRenderAsyncDelegate },
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{ "sectionA", _nullRenderAsyncDelegate },
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};
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// Act
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await page.ExecuteAsync();
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var ex = Assert.Throws<InvalidOperationException>(() => page.EnsureBodyAndSectionsWereRendered());
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// Assert
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Assert.Equal("The following sections have been defined but have not been rendered: 'header, footer'.",
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ex.Message);
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}
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[Fact]
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public async Task EnsureBodyAndSectionsWereRendered_ThrowsIfRenderBodyIsNotCalledFromPage()
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{
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// Arrange
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var expected = new HelperResult(action: null);
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var page = CreatePage(v =>
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{
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});
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page.RenderBodyDelegate = CreateBodyAction("some content");
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// Act
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await page.ExecuteAsync();
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var ex = Assert.Throws<InvalidOperationException>(() => page.EnsureBodyAndSectionsWereRendered());
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// Assert
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Assert.Equal("RenderBody must be called from a layout page.", ex.Message);
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}
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[Fact]
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public async Task ExecuteAsync_RendersSectionsAndBody()
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{
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// Arrange
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var expected = string.Join(Environment.NewLine,
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"Layout start",
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"Header section",
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"Async Header section",
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"body content",
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"Async Footer section",
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"Footer section",
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"Layout end");
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var page = CreatePage(async v =>
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{
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v.WriteLiteral("Layout start" + Environment.NewLine);
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v.Write(v.RenderSection("header"));
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v.Write(await v.RenderSectionAsync("async-header"));
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v.Write(v.RenderBodyPublic());
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v.Write(await v.RenderSectionAsync("async-footer"));
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v.Write(v.RenderSection("footer"));
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v.WriteLiteral("Layout end");
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});
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page.RenderBodyDelegate = CreateBodyAction("body content" + Environment.NewLine);
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page.PreviousSectionWriters = new Dictionary<string, RenderAsyncDelegate>
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{
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{
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"footer", writer => writer.WriteLineAsync("Footer section")
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},
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{
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"header", writer => writer.WriteLineAsync("Header section")
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},
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{
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"async-header", writer => writer.WriteLineAsync("Async Header section")
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},
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{
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"async-footer", writer => writer.WriteLineAsync("Async Footer section")
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},
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};
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// Act
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await page.ExecuteAsync();
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// Assert
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var actual = page.RenderedContent;
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Assert.Equal(expected, actual);
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}
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[Fact]
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public async Task Href_ReadsUrlHelperFromServiceCollection()
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{
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// Arrange
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var expected = "urlhelper-url";
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var helper = new Mock<IUrlHelper>();
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helper.Setup(h => h.Content("url"))
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.Returns(expected)
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.Verifiable();
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var page = CreatePage(v =>
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{
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v.Write(v.Href("url"));
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});
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var services = new Mock<IServiceProvider>();
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services.Setup(s => s.GetService(typeof(IUrlHelper)))
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.Returns(helper.Object);
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page.Context.RequestServices = services.Object;
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// Act
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await page.ExecuteAsync();
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// Assert
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var actual = page.RenderedContent;
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Assert.Equal(expected, actual);
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helper.Verify();
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}
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[Fact]
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public async Task FlushAsync_InvokesFlushOnWriter()
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{
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// Arrange
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var writer = new Mock<TextWriter>();
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var context = CreateViewContext(writer.Object);
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var page = CreatePage(async p =>
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{
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await p.FlushAsync();
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}, context);
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// Act
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await page.ExecuteAsync();
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// Assert
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writer.Verify(v => v.FlushAsync(), Times.Once());
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}
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[Fact]
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public async Task FlushAsync_ThrowsIfTheLayoutHasBeenSet()
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{
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// Arrange
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var expected = @"A layout page cannot be rendered after 'FlushAsync' has been invoked.";
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var writer = new Mock<TextWriter>();
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var context = CreateViewContext(writer.Object);
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var page = CreatePage(async p =>
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{
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p.Layout = "foo";
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await p.FlushAsync();
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}, context);
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// Act and Assert
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var ex = await Assert.ThrowsAsync<InvalidOperationException>(() => page.ExecuteAsync());
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Assert.Equal(expected, ex.Message);
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}
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[Fact]
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public async Task FlushAsync_DoesNotThrowWhenIsRenderingLayoutIsSet()
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{
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// Arrange
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var writer = new Mock<TextWriter>();
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var context = CreateViewContext(writer.Object);
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var page = CreatePage(p =>
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{
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p.Layout = "bar";
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p.DefineSection("test-section", async _ =>
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{
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await p.FlushAsync();
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});
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}, context);
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// Act
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await page.ExecuteAsync();
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page.IsLayoutBeingRendered = true;
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// Assert
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var renderAsyncDelegate = page.SectionWriters["test-section"];
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await Assert.DoesNotThrowAsync(() => renderAsyncDelegate(TextWriter.Null));
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}
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[Fact]
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public async Task WriteAttribute_CallsBeginAndEndContext_OnPageExecutionListenerContext()
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{
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// Arrange
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var page = CreatePage(p =>
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{
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p.WriteAttribute("href",
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new PositionTagged<string>("prefix", 0),
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new PositionTagged<string>("suffix", 34),
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new AttributeValue(new PositionTagged<string>("prefix", 0),
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new PositionTagged<object>("attr1-value", 8),
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literal: true),
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new AttributeValue(new PositionTagged<string>("prefix2", 22),
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new PositionTagged<object>("attr2", 29),
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literal: false));
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});
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var context = new Mock<IPageExecutionContext>(MockBehavior.Strict);
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var sequence = new MockSequence();
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context.InSequence(sequence).Setup(f => f.BeginContext(0, 6, true)).Verifiable();
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context.InSequence(sequence).Setup(f => f.EndContext()).Verifiable();
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context.InSequence(sequence).Setup(f => f.BeginContext(8, 14, true)).Verifiable();
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context.InSequence(sequence).Setup(f => f.EndContext()).Verifiable();
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context.InSequence(sequence).Setup(f => f.BeginContext(22, 7, true)).Verifiable();
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context.InSequence(sequence).Setup(f => f.EndContext()).Verifiable();
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context.InSequence(sequence).Setup(f => f.BeginContext(29, 5, false)).Verifiable();
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context.InSequence(sequence).Setup(f => f.EndContext()).Verifiable();
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context.InSequence(sequence).Setup(f => f.BeginContext(34, 6, true)).Verifiable();
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context.InSequence(sequence).Setup(f => f.EndContext()).Verifiable();
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page.PageExecutionContext = context.Object;
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// Act
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await page.ExecuteAsync();
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// Assert
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context.Verify();
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}
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[Fact]
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public async Task WriteAttribute_CallsBeginAndEndContext_OnPrefixAndSuffixValues()
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{
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// Arrange
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var page = CreatePage(p =>
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{
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p.WriteAttribute("href",
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new PositionTagged<string>("prefix", 0),
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new PositionTagged<string>("tail", 7));
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});
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var context = new Mock<IPageExecutionContext>(MockBehavior.Strict);
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var sequence = new MockSequence();
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context.InSequence(sequence).Setup(f => f.BeginContext(0, 6, true)).Verifiable();
|
|
context.InSequence(sequence).Setup(f => f.EndContext()).Verifiable();
|
|
context.InSequence(sequence).Setup(f => f.BeginContext(7, 4, true)).Verifiable();
|
|
context.InSequence(sequence).Setup(f => f.EndContext()).Verifiable();
|
|
page.PageExecutionContext = context.Object;
|
|
|
|
// Act
|
|
await page.ExecuteAsync();
|
|
|
|
// Assert
|
|
context.Verify();
|
|
}
|
|
|
|
[Fact]
|
|
public async Task Write_WithHtmlString_WritesValueWithoutEncoding()
|
|
{
|
|
// Arrange
|
|
var writer = new RazorTextWriter(TextWriter.Null, Encoding.UTF8);
|
|
var stringCollectionWriter = new StringCollectionTextWriter(Encoding.UTF8);
|
|
stringCollectionWriter.Write("text1");
|
|
stringCollectionWriter.Write("text2");
|
|
|
|
var page = CreatePage(p =>
|
|
{
|
|
p.Write(new HtmlString("Hello world"));
|
|
p.Write(new HtmlString(stringCollectionWriter));
|
|
});
|
|
page.ViewContext.Writer = writer;
|
|
|
|
// Act
|
|
await page.ExecuteAsync();
|
|
|
|
// Assert
|
|
var buffer = writer.BufferedWriter.Buffer;
|
|
Assert.Equal(2, buffer.BufferEntries.Count);
|
|
Assert.Equal("Hello world", buffer.BufferEntries[0]);
|
|
Assert.Same(stringCollectionWriter.Buffer.BufferEntries, buffer.BufferEntries[1]);
|
|
}
|
|
|
|
private static TestableRazorPage CreatePage(Action<TestableRazorPage> executeAction,
|
|
ViewContext context = null)
|
|
{
|
|
return CreatePage(page =>
|
|
{
|
|
executeAction(page);
|
|
return Task.FromResult(0);
|
|
}, context);
|
|
}
|
|
|
|
|
|
private static TestableRazorPage CreatePage(Func<TestableRazorPage, Task> executeAction,
|
|
ViewContext context = null)
|
|
{
|
|
context = context ?? CreateViewContext();
|
|
var view = new Mock<TestableRazorPage> { CallBase = true };
|
|
if (executeAction != null)
|
|
{
|
|
view.Setup(v => v.ExecuteAsync())
|
|
.Returns(() =>
|
|
{
|
|
return executeAction(view.Object);
|
|
});
|
|
}
|
|
|
|
view.Object.ViewContext = context;
|
|
return view.Object;
|
|
}
|
|
|
|
private static ViewContext CreateViewContext(TextWriter writer = null)
|
|
{
|
|
writer = writer ?? new StringWriter();
|
|
var actionContext = new ActionContext(new DefaultHttpContext(), routeData: null, actionDescriptor: null);
|
|
return new ViewContext(
|
|
actionContext,
|
|
Mock.Of<IView>(),
|
|
null,
|
|
writer);
|
|
}
|
|
|
|
private static Action<TextWriter> CreateBodyAction(string value)
|
|
{
|
|
return writer => writer.Write(value);
|
|
}
|
|
|
|
public abstract class TestableRazorPage : RazorPage
|
|
{
|
|
public string RenderedContent
|
|
{
|
|
get
|
|
{
|
|
var writer = Assert.IsType<StringWriter>(Output);
|
|
return writer.ToString();
|
|
}
|
|
}
|
|
|
|
public HelperResult RenderBodyPublic()
|
|
{
|
|
return base.RenderBody();
|
|
}
|
|
}
|
|
}
|
|
} |