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using System.IO;
using System.Linq;
using System.Text.Json;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using Xunit;
namespace Microsoft.AspNetCore.Components.WebAssembly.Build
{
public class PwaManifestTests
{
[Fact]
public async Task Build_ServiceWorkerAssetsManifest_Works()
{
// Arrange
var expectedExtensions = new[] { ".dll", ".pdb", ".js", ".wasm" };
using var project = ProjectDirectory.Create("standalone", additionalProjects: new[] { "razorclasslibrary" });
var result = await MSBuildProcessManager.DotnetMSBuild(project, args: "/p:ServiceWorkerAssetsManifest=service-worker-assets.js");
Assert.BuildPassed(result);
var buildOutputDirectory = project.BuildOutputDirectory;
Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "blazor.boot.json");
Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "blazor.webassembly.js");
Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "wasm", "dotnet.wasm");
Assert.FileCountEquals(result, 1, Path.Combine(buildOutputDirectory, "wwwroot", "_framework", "wasm"), "dotnet.*.js");
Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "_bin", "standalone.dll");
Assert.FileExists(result, buildOutputDirectory, "wwwroot", "_framework", "_bin", "Microsoft.Extensions.Logging.Abstractions.dll"); // Verify dependencies are part of the output.
var staticWebAssets = Assert.FileExists(result, buildOutputDirectory, "standalone.StaticWebAssets.xml");
Assert.FileContains(result, staticWebAssets, Path.Combine("netstandard2.1", "wwwroot"));
var serviceWorkerAssetsManifest = Assert.FileExists(result, buildOutputDirectory, "wwwroot", "service-worker-assets.js");
// Trim prefix 'self.assetsManifest = ' and suffix ';'
var manifestContents = File.ReadAllText(serviceWorkerAssetsManifest).TrimEnd()[22..^1];
var manifestContentsJson = JsonDocument.Parse(manifestContents);
Assert.True(manifestContentsJson.RootElement.TryGetProperty("assets", out var assets));
Assert.Equal(JsonValueKind.Array, assets.ValueKind);
var entries = assets.EnumerateArray().Select(e => e.GetProperty("url").GetString()).OrderBy(e => e).ToArray();
Assert.All(entries, e => expectedExtensions.Contains(Path.GetExtension(e)));
}
[Fact]
public async Task Publish_UpdatesServiceWorkerVersionHash_WhenSourcesChange()
{
// Arrange
using var project = ProjectDirectory.Create("standalone", additionalProjects: new[] { "razorclasslibrary" });
var result = await MSBuildProcessManager.DotnetMSBuild(project, "Publish", args: "/bl:initial.binlog /p:ServiceWorkerAssetsManifest=service-worker-assets.js");
Assert.BuildPassed(result);
var publishOutputDirectory = project.PublishOutputDirectory;
var serviceWorkerFile = Assert.FileExists(result, publishOutputDirectory, "wwwroot", "serviceworkers", "my-service-worker.js");
var version = File.ReadAllLines(serviceWorkerFile).Last();
var match = Regex.Match(version, "\\/\\* Manifest version: (.{8}) \\*\\/");
Assert.True(match.Success);
Assert.Equal(2, match.Groups.Count);
Assert.NotNull(match.Groups[1].Value);
var capture = match.Groups[1].Value;
// Act
var cssFile = Path.Combine(project.DirectoryPath, "LinkToWebRoot", "css", "app.css");
File.WriteAllText(cssFile, ".updated { }");
// Assert
var updatedResult = await MSBuildProcessManager.DotnetMSBuild(project, "Publish", args: "/bl:updated.binlog /p:ServiceWorkerAssetsManifest=service-worker-assets.js");
Assert.BuildPassed(result);
var updatedVersion = File.ReadAllLines(serviceWorkerFile).Last();
var updatedMatch = Regex.Match(updatedVersion, "\\/\\* Manifest version: (.{8}) \\*\\/");
Assert.True(updatedMatch.Success);
Assert.Equal(2, updatedMatch.Groups.Count);
Assert.NotNull(updatedMatch.Groups[1].Value);
var updatedCapture = updatedMatch.Groups[1].Value;
Assert.NotEqual(capture, updatedCapture);
}
[Fact]
public async Task Publish_DeterministicAcrossBuilds_WhenNoSourcesChange()
{
// Arrange
using var project = ProjectDirectory.Create("standalone", additionalProjects: new[] { "razorclasslibrary" });
var result = await MSBuildProcessManager.DotnetMSBuild(project, "Publish", args: "/bl:initial.binlog /p:ServiceWorkerAssetsManifest=service-worker-assets.js");
Assert.BuildPassed(result);
var publishOutputDirectory = project.PublishOutputDirectory;
var serviceWorkerFile = Assert.FileExists(result, publishOutputDirectory, "wwwroot", "serviceworkers", "my-service-worker.js");
var version = File.ReadAllLines(serviceWorkerFile).Last();
var match = Regex.Match(version, "\\/\\* Manifest version: (.{8}) \\*\\/");
Assert.True(match.Success);
Assert.Equal(2, match.Groups.Count);
Assert.NotNull(match.Groups[1].Value);
var capture = match.Groups[1].Value;
// Act && Assert
var updatedResult = await MSBuildProcessManager.DotnetMSBuild(project, "Publish", args: "/bl:updated.binlog /p:ServiceWorkerAssetsManifest=service-worker-assets.js");
Assert.BuildPassed(result);
var updatedVersion = File.ReadAllLines(serviceWorkerFile).Last();
var updatedMatch = Regex.Match(updatedVersion, "\\/\\* Manifest version: (.{8}) \\*\\/");
Assert.True(updatedMatch.Success);
Assert.Equal(2, updatedMatch.Groups.Count);
Assert.NotNull(updatedMatch.Groups[1].Value);
var updatedCapture = updatedMatch.Groups[1].Value;
Assert.Equal(capture, updatedCapture);
}
}
}
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