ConcatenateFilesTest.cs

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using Microsoft.AspNetCore.StaticWebAssets.Tasks;
using Microsoft.Build.Framework;
using Microsoft.Build.Utilities;
 
namespace Microsoft.NET.Sdk.Razor.Test
{
    public class ConcatenateCssFilesTest
    {
        private static readonly string BundleContent =
    @"/* _content/Test/TestFiles/Generated/Counter.razor.rz.scp.css */
.counter {
    font-size: 2rem;
}
/* _content/Test/TestFiles/Generated/Index.razor.rz.scp.css */
.index {
    font-weight: bold;
}
";
 
        private static readonly string BundleWithImportsContent = """
            @import '_content/Test/TestFiles/Generated/lib.bundle.scp.css';
            @import '_content/Test/TestFiles/Generated/package.bundle.scp.css';
 
            /* _content/Test/TestFiles/Generated/Counter.razor.rz.scp.css */
            .counter {
                font-size: 2rem;
            }
            /* _content/Test/TestFiles/Generated/Index.razor.rz.scp.css */
            .index {
                font-weight: bold;
            }
            """;
 
        private static readonly string UpdatedBundleContent =
    @"/* _content/Test/TestFiles/Generated/Counter.razor.rz.scp.css */
.counter {
    font-size: 2rem;
}
/* _content/Test/TestFiles/Generated/FetchData.razor.rz.scp.css */
.fetchData {
    font-family: Helvetica;
}
/* _content/Test/TestFiles/Generated/Index.razor.rz.scp.css */
.index {
    font-weight: bold;
}
";
 
        [Fact]
        public void BundlesScopedCssFiles_ProducesEmpyBundleIfNoFilesAvailable()
        {
            // Arrange
            var expectedFile = Path.Combine(Directory.GetCurrentDirectory(), $"{Guid.NewGuid():N}.css");
            var taskInstance = new ConcatenateCssFiles()
            {
                ScopedCssFiles = Array.Empty<ITaskItem>(),
                ProjectBundles = Array.Empty<ITaskItem>(),
                OutputFile = expectedFile
            };
 
            // Act
            var result = taskInstance.Execute();
 
            // Assert
            result.Should().BeTrue();
            File.Exists(expectedFile).Should().BeTrue();
            File.ReadAllText(expectedFile).Should().BeEmpty();
        }
 
        [Fact]
        public void BundlesScopedCssFiles_ProducesBundle()
        {
            // Arrange
            var expectedFile = Path.Combine(Directory.GetCurrentDirectory(), $"{Guid.NewGuid():N}.css");
            var taskInstance = new ConcatenateCssFiles()
            {
                ScopedCssFiles = new[]
                {
                    CreateStaticAsset(
                        "TestFiles/Generated/Counter.razor.rz.scp.css",
                        "_content/Test/",
                        "TestFiles/Generated/Counter.razor.rz.scp.css"),
                    CreateStaticAsset(
                        "TestFiles/Generated/Index.razor.rz.scp.css",
                        "_content/Test/",
                        "TestFiles/Generated/Index.razor.rz.scp.css"),
                },
                ProjectBundles = Array.Empty<ITaskItem>(),
                OutputFile = expectedFile
            };
 
            // Act
            var result = taskInstance.Execute();
 
            // Assert
            result.Should().BeTrue();
            File.Exists(expectedFile).Should().BeTrue();
 
            var actualContents = File.ReadAllText(expectedFile);
            actualContents.Should().Contain(BundleContent);
        }
 
        private static TaskItem CreateEndpoint(string route) =>
            new TaskItem(route);
 
        private static TaskItem CreateStaticAsset(string identity, string basePath, string relativePath) =>
            new TaskItem(
                identity,
                new Dictionary<string, string>
                {
                    ["BasePath"] = basePath,
                    ["RelativePath"] = relativePath,
                    ["SourceType"] = "Discovered",
                    ["SourceId"] = "MyLibrary",
                    ["ContentRoot"] = Path.Combine(AppContext.BaseDirectory, "staticwebassets"),
                    ["AssetKind"] = "All",
                    ["AssetMode"] = "All",
                    ["AssetRole"] = "Primary",
                    ["RelatedAsset"] = "",
                    ["AssetTraitName"] = "",
                    ["AssetTraitValue"] = "",
                    ["OriginalItemSpec"] = identity,
                    ["Fingerprint"] = $"{Path.GetFileNameWithoutExtension(identity)}-fingerprint",
                    ["Integrity"] = $"{Path.GetFileNameWithoutExtension(identity)}-integrity",
                    ["CopyToOutputDirectory"] = "Never",
                    ["CopyToPublishDirectory"] = "PreserveNewest"
                });
 
        [Fact]
        public void BundlesScopedCssFiles_IncludesOtherBundles()
        {
            // Arrange
            var expectedFile = Path.Combine(Directory.GetCurrentDirectory(), $"{Guid.NewGuid():N}.css");
            var taskInstance = new ConcatenateCssFiles()
            {
                ScopedCssFiles = new[]
                {
                    CreateStaticAsset(
                        "TestFiles/Generated/Counter.razor.rz.scp.css",
                        "_content/Test/",
                        "TestFiles/Generated/Counter.razor.rz.scp.css"),
                    CreateStaticAsset(
                        "TestFiles/Generated/Index.razor.rz.scp.css",
                        "_content/Test/",
                        "TestFiles/Generated/Index.razor.rz.scp.css"),
                },
                ProjectBundles = new[]
                {
                    CreateEndpoint("_content/Test/TestFiles/Generated/lib.bundle.scp.css"),
                    CreateEndpoint("_content/Test/TestFiles/Generated/package.bundle.scp.css"),
                },
                ScopedCssBundleBasePath = "/",
                OutputFile = expectedFile
            };
 
            // Act
            var result = taskInstance.Execute();
 
            // Assert
            result.Should().BeTrue();
            File.Exists(expectedFile).Should().BeTrue();
 
            var actualContents = File.ReadAllText(expectedFile);
            actualContents.Should().Contain(BundleWithImportsContent);
        }
 
        [Theory]
        [InlineData("", "", "TestFiles/Generated/lib.bundle.scp.css")]
        [InlineData("/", "/", "TestFiles/Generated/lib.bundle.scp.css")]
        [InlineData("app", "_content", "../_content/TestFiles/Generated/lib.bundle.scp.css")]
        [InlineData("app", "/_content", "../_content/TestFiles/Generated/lib.bundle.scp.css")]
        [InlineData("app", "/_content/", "../_content/TestFiles/Generated/lib.bundle.scp.css")]
        [InlineData("/app", "_content", "../_content/TestFiles/Generated/lib.bundle.scp.css")]
        [InlineData("/app", "/_content", "../_content/TestFiles/Generated/lib.bundle.scp.css")]
        [InlineData("/app", "/_content/", "../_content/TestFiles/Generated/lib.bundle.scp.css")]
        [InlineData("app/", "_content", "../_content/TestFiles/Generated/lib.bundle.scp.css")]
        [InlineData("app/", "/_content", "../_content/TestFiles/Generated/lib.bundle.scp.css")]
        [InlineData("app/", "/_content/", "../_content/TestFiles/Generated/lib.bundle.scp.css")]
        [InlineData("/company/app/", "_content", "../../_content/TestFiles/Generated/lib.bundle.scp.css")]
        [InlineData("/company/app/", "/_content", "../../_content/TestFiles/Generated/lib.bundle.scp.css")]
        [InlineData("/company/app/", "/_content/", "../../_content/TestFiles/Generated/lib.bundle.scp.css")]
        public void BundlesScopedCssFiles_HandlesBasePathCombinationsCorrectly(string finalBasePath, string libraryBasePath, string expectedImport)
        {
            // Arrange
            var expectedContent = BundleWithImportsContent
                .Replace("_content/Test/TestFiles/Generated/lib.bundle.scp.css", expectedImport)
                .Replace("@import '_content/Test/TestFiles/Generated/package.bundle.scp.css';", "")
                .Replace("\r\n", "\n")
                .Replace("\n\n", "\n");
 
            var expectedFile = Path.Combine(Directory.GetCurrentDirectory(), $"{Guid.NewGuid():N}.css");
            var taskInstance = new ConcatenateCssFiles()
            {
                ScopedCssFiles = new[]
                {
                    CreateStaticAsset(
                        "TestFiles/Generated/Counter.razor.rz.scp.css",
                        "_content/Test/",
                        "TestFiles/Generated/Counter.razor.rz.scp.css"),
                    CreateStaticAsset(
                        "TestFiles/Generated/Index.razor.rz.scp.css",
                        "_content/Test/",
                        "TestFiles/Generated/Index.razor.rz.scp.css"),
                },
                ProjectBundles = new[]
                {
                    CreateEndpoint(StaticWebAsset.CombineNormalizedPaths("",libraryBasePath,"TestFiles/Generated/lib.bundle.scp.css", '/'))
                },
                ScopedCssBundleBasePath = finalBasePath,
                OutputFile = expectedFile
            };
 
            // Act
            var result = taskInstance.Execute();
 
            // Assert
            result.Should().BeTrue();
            File.Exists(expectedFile).Should().BeTrue();
 
            var actualContents = File.ReadAllText(expectedFile);
            actualContents.Should().BeVisuallyEquivalentTo(expectedContent);
        }
 
        [Fact]
        public void BundlesScopedCssFiles_BundlesFilesInOrder()
        {
            // Arrange
            var expectedFile = Path.Combine(Directory.GetCurrentDirectory(), $"{Guid.NewGuid():N}.css");
            var taskInstance = new ConcatenateCssFiles()
            {
                ScopedCssFiles = new[]
                {
                    CreateStaticAsset(
                        "TestFiles/Generated/Index.razor.rz.scp.css",
                        "_content/Test/",
                        "TestFiles/Generated/Index.razor.rz.scp.css"),
                    CreateStaticAsset(
                        "TestFiles/Generated/Counter.razor.rz.scp.css",
                        "_content/Test/",
                        "TestFiles/Generated/Counter.razor.rz.scp.css")
                },
                ProjectBundles = Array.Empty<ITaskItem>(),
                OutputFile = expectedFile
            };
 
            // Act
            var result = taskInstance.Execute();
 
            // Assert
            result.Should().BeTrue();
            File.Exists(expectedFile).Should().BeTrue();
 
            var actualContents = File.ReadAllText(expectedFile);
            actualContents.Should().Contain(BundleContent);
        }
 
        [Fact]
        public void BundlesScopedCssFiles_DoesNotOverrideBundleForSameContents()
        {
            // Arrange
            var expectedFile = Path.Combine(Directory.GetCurrentDirectory(), $"{Guid.NewGuid():N}.css");
            var taskInstance = new ConcatenateCssFiles()
            {
                ScopedCssFiles = new[]
                {
                    CreateStaticAsset(
                        "TestFiles/Generated/Index.razor.rz.scp.css",
                        "_content/Test/",
                        "TestFiles/Generated/Index.razor.rz.scp.css"),
                    CreateStaticAsset(
                        "TestFiles/Generated/Counter.razor.rz.scp.css",
                        "_content/Test/",
                        "TestFiles/Generated/Counter.razor.rz.scp.css")
                },
                ProjectBundles = Array.Empty<ITaskItem>(),
                OutputFile = expectedFile
            };
 
            // Act
            var result = taskInstance.Execute();
 
            var lastModified = File.GetLastWriteTimeUtc(expectedFile);
 
            taskInstance.Execute();
 
            // Assert
            result.Should().BeTrue();
            File.Exists(expectedFile).Should().BeTrue();
            var actualContents = File.ReadAllText(expectedFile);
            actualContents.Should().Contain(BundleContent);
 
            lastModified.Should().BeSameDateAs(File.GetLastWriteTimeUtc(expectedFile));
        }
 
        [Fact]
        public async System.Threading.Tasks.Task BundlesScopedCssFiles_UpdatesBundleWhenContentsChange()
        {
            // Arrange
            var expectedFile = Path.Combine(Directory.GetCurrentDirectory(), $"{Guid.NewGuid():N}.css");
            var taskInstance = new ConcatenateCssFiles()
            {
                ScopedCssFiles = new[]
                {
                    CreateStaticAsset(
                        "TestFiles/Generated/Index.razor.rz.scp.css",
                        "_content/Test/",
                        "TestFiles/Generated/Index.razor.rz.scp.css"),
                    CreateStaticAsset(
                        "TestFiles/Generated/Counter.razor.rz.scp.css",
                        "_content/Test/",
                        "TestFiles/Generated/Counter.razor.rz.scp.css")
                },
                ProjectBundles = Array.Empty<ITaskItem>(),
                OutputFile = expectedFile
            };
 
            // Act
            var result = taskInstance.Execute();
 
            var lastModified = File.GetLastWriteTimeUtc(expectedFile);
 
            taskInstance.ScopedCssFiles = new[]
            {
                CreateStaticAsset(
                    "TestFiles/Generated/Index.razor.rz.scp.css",
                    "_content/Test/",
                    "TestFiles/Generated/Index.razor.rz.scp.css"),
                CreateStaticAsset(
                    "TestFiles/Generated/Counter.razor.rz.scp.css",
                    "_content/Test/",
                    "TestFiles/Generated/Counter.razor.rz.scp.css"),
                CreateStaticAsset(
                    "TestFiles/Generated/FetchData.razor.rz.scp.css",
                    "_content/Test/",
                    "TestFiles/Generated/FetchData.razor.rz.scp.css"),
            };
 
            await System.Threading.Tasks.Task.Delay(1000);
            taskInstance.Execute();
 
            // Assert
            result.Should().BeTrue();
            File.Exists(expectedFile).Should().BeTrue();
            var actualContents = File.ReadAllText(expectedFile);
 
            actualContents.Should().Contain(UpdatedBundleContent);
            lastModified.Should().NotBe(File.GetLastWriteTimeUtc(expectedFile));
        }
    }
}
File: StaticWebAssets\ConcatenateFilesTest.cs	Web Access
Project: ..\..\..\test\Microsoft.NET.Sdk.StaticWebAssets.Tests\Microsoft.NET.Sdk.StaticWebAssets.Tests.csproj (Microsoft.NET.Sdk.StaticWebAssets.Tests)