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Warren Buckley
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Merge pull request #61 from Matthew-Wise/feature/optional-link
Added tests for LinkTagHelper
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4 files changed

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‎Our.Umbraco.TagHelpers.Tests/Helpers/TestContextHelpers.cs

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using Microsoft.AspNetCore.Razor.TagHelpers;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace Our.Umbraco.TagHelpers.Tests.Helpers
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{
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internal static class TestContextHelpers
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{
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public static TagHelperContext GetTagHelperContext(string id = "testid")
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{
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return new TagHelperContext(
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tagName: "p",
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allAttributes: new TagHelperAttributeList(),
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items: new Dictionary<object, object>(),
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uniqueId: id);
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}
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public static TagHelperOutput GetTagHelperOutput(
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string tagName = "p",
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TagHelperAttributeList attributes = null,
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string childContent = "some child content")
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{
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attributes ??= new TagHelperAttributeList();
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return new TagHelperOutput(
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tagName,
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attributes,
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getChildContentAsync: (useCachedResult, encoder) =>
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{
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var tagHelperContent = new DefaultTagHelperContent();
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var content = tagHelperContent.SetHtmlContent(childContent);
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return Task.FromResult(content);
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});
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}
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}
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}

‎Our.Umbraco.TagHelpers.Tests/IncludeIfTagHelperTests.cs

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@@ -1,9 +1,7 @@
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using Microsoft.AspNetCore.Razor.TagHelpers;
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using NUnit.Framework;
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using System;
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using System.Collections.Generic;
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using Our.Umbraco.TagHelpers;
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using System.Threading.Tasks;
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using Our.Umbraco.TagHelpers.Tests.Helpers;
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namespace Our.Umbraco.TagHelpers.Tests
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{
@@ -15,8 +13,8 @@ public async Task Given_Predicate_Return_Contents_Or_Empty(bool predicate, strin
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{
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// Arrange
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var id = "unique-id";
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var tagHelperContext = GetTagHelperContext(id);
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var tagHelperOutput = GetTagHelperOutput(
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var tagHelperContext = TestContextHelpers.GetTagHelperContext(id);
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var tagHelperOutput = TestContextHelpers.GetTagHelperOutput(
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attributes: new TagHelperAttributeList(),
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childContent: childContent);
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tagHelperOutput.Content.SetContent(childContent);
@@ -31,32 +29,5 @@ public async Task Given_Predicate_Return_Contents_Or_Empty(bool predicate, strin
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// Assert
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Assert.AreEqual(expected, content);
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}
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private static TagHelperContext GetTagHelperContext(string id = "testid")
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{
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return new TagHelperContext(
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tagName: "p",
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allAttributes: new TagHelperAttributeList(),
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items: new Dictionary<object, object>(),
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uniqueId: id);
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}
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private static TagHelperOutput GetTagHelperOutput(
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string tagName = "p",
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TagHelperAttributeList attributes = null,
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string childContent = "some child content")
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{
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attributes = attributes ?? new TagHelperAttributeList { { "attr", "value" } };
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return new TagHelperOutput(
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tagName,
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attributes,
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getChildContentAsync: (useCachedResult, encoder) =>
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{
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var tagHelperContent = new DefaultTagHelperContent();
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var content = tagHelperContent.SetHtmlContent(childContent);
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return Task.FromResult<TagHelperContent>(content);
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});
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}
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}
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}

‎Our.Umbraco.TagHelpers.Tests/LinkTagHelperTests.cs

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using System.IO;
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using System.Text.Encodings.Web;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Razor.TagHelpers;
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using NUnit.Framework;
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using Our.Umbraco.TagHelpers.Tests.Helpers;
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using Umbraco.Cms.Core.Models;
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namespace Our.Umbraco.TagHelpers.Tests
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{
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public class LinkTagHelperTests
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{
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private static readonly Link _onSiteLink = new() { Url = "/", Name = "example" };
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private static readonly Link _externalLink = new() { Url = "/", Name = "example", Target = "_blank", Type = LinkType.External };
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private TagHelperContext _tagHelperContext;
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[SetUp]
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public void SetUp()
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{
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_tagHelperContext = TestContextHelpers.GetTagHelperContext("link");
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}
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[TestCase("", "example")]
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[TestCase(null, "example")]
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[TestCase("content", "content")]
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public async Task Internal_Link_Renders_AnchorAroundContentOrLinkName(string childContent, string expectedContent)
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{
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var output = TestContextHelpers.GetTagHelperOutput("our-link", childContent: childContent);
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output.Content.SetContent(childContent);
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LinkTagHelper tagHelper = new() { Link = _onSiteLink };
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var markup = await GetMarkupAsync(tagHelper, output);
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Assert.AreEqual($"<a href=\"/\">{expectedContent}</a>", markup);
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}
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[TestCase("", "example")]
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[TestCase(null, "example")]
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[TestCase("content", "content")]
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public async Task External_Link_Renders_AnchorAroundContentOrLinkName(string childContent, string expectedContent)
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{
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var output = TestContextHelpers.GetTagHelperOutput("our-link", childContent: childContent);
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output.Content.SetContent(childContent);
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LinkTagHelper tagHelper = new() { Link = _externalLink };
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var markup = await GetMarkupAsync(tagHelper, output);
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Assert.AreEqual($"<a href=\"/\" target=\"_blank\" rel=\"noopener\">{expectedContent}</a>", markup);
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}
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[Test]
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public async Task NoUrl_WithoutFallback_RendersNothing()
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{
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var output = TestContextHelpers.GetTagHelperOutput("our-link", childContent: string.Empty);
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output.Content.SetContent(string.Empty);
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LinkTagHelper tagHelper = new() { Link = new() };
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var markup = await GetMarkupAsync(tagHelper, output);
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Assert.AreEqual(string.Empty, markup);
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}
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[Test]
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public async Task Null_Link_WithoutFallback_RendersNothing()
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{
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var output = TestContextHelpers.GetTagHelperOutput("our-link", childContent: string.Empty);
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output.Content.SetContent(string.Empty);
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LinkTagHelper tagHelper = new() { Link = null };
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var markup = await GetMarkupAsync(tagHelper, output);
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Assert.AreEqual(string.Empty, markup);
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}
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[TestCase("", "")]
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[TestCase(null, "")]
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[TestCase("content", "content")]
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public async Task Null_Link_WithFallback_NoElement_RendersContent(string childContent, string expectedContent)
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{
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var output = TestContextHelpers.GetTagHelperOutput("our-link", childContent: childContent);
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output.Content.SetContent(childContent);
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LinkTagHelper tagHelper = new() { Link = null, Fallback = true };
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var markup = await GetMarkupAsync(tagHelper, output);
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Assert.AreEqual(expectedContent, markup);
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}
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[TestCase("", "")]
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[TestCase(null, "")]
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[TestCase("content", "<div>content</div>")]
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public async Task Null_Link_WithFallback_AndElement_RendersContent(string childContent, string expectedContent)
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{
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var output = TestContextHelpers.GetTagHelperOutput("our-link", childContent: childContent);
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output.Content.SetContent(childContent);
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LinkTagHelper tagHelper = new() { Link = null, Fallback = true, FallbackElement = "div" };
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var markup = await GetMarkupAsync(tagHelper, output);
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Assert.AreEqual(expectedContent, markup);
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}
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private async Task<string> GetMarkupAsync(LinkTagHelper tagHelper, TagHelperOutput output)
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{
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await tagHelper.ProcessAsync(_tagHelperContext, output);
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using var txtWriter = new StringWriter();
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output.WriteTo(txtWriter, HtmlEncoder.Default);
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return txtWriter.ToString();
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}
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}
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}

‎Our.Umbraco.TagHelpers.Tests/Our.Umbraco.TagHelpers.Tests.csproj

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<Project Sdk="Microsoft.NET.Sdk">
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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>net5.0</TargetFramework>

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