The bundled faces were packaged but unused — no style referenced FontFamily.Sans, so the app still rendered Segoe UI. MainWindow now sets FontFamily from the token, which cascades to every child (dialogs follow in the sweep). Font packaging: six explicit <Resource> items instead of the Assets\Fonts\*.ttf glob, so the guard can name exactly what must ship. Investigation worth recording: a runtime assertion that the families resolve from pack://application:,,,/ would have needed an Application instance inside the test host, and without one WPF resolves the pack authority against the test host — every probe failed, including the app icon that demonstrably works. The resources ARE embedded (the lowercase `assets/fonts/inter-regular.ttf` entry is present in ytLive.g.resources); the assertion was removed rather than faked, and the real confirmation is a launch, which is a visual check. Guard remains structural: files are real binaries, each is a Resource in the csproj, the theme uses pack URIs, notices + both OFL texts are present, and no third family sneaks in.
69 lines
2.9 KiB
C#
69 lines
2.9 KiB
C#
using System;
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using System.IO;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading;
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using System.Windows;
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using System.Windows.Media;
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using Xunit;
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namespace ytLive.Tests;
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/// <summary>The DESIGN.md type standard names Inter and JetBrains Mono, and the creator ruled
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/// (2026-10-30) that they ship with the app rather than depending on what the machine happens to
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/// have installed. That makes them third-party assets with obligations, so this guard covers the
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/// whole chain: the files are present and unmodified, the project ships them as resources, the
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/// theme resolves them from the pack folder, and the OFL notice + license text travel with them.
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///
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/// <para>A missing font would otherwise fail silently — WPF falls back to a system face and the
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/// design standard quietly stops being true.</para></summary>
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public class BundledFontsTests
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{
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private static readonly string[] Files =
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{
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"Inter-Regular.ttf", "Inter-Medium.ttf", "Inter-SemiBold.ttf", "Inter-Bold.ttf",
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"JetBrainsMono-Medium.ttf", "JetBrainsMono-SemiBold.ttf",
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};
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[Fact]
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public void The_standard_typefaces_ship_bundled_with_their_OFL_notice()
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{
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// 1. The files are there and are real font binaries, not placeholders.
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foreach (var name in Files)
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{
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var path = SourceAssert.RepoPath("Assets", "Fonts", name);
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Assert.True(new FileInfo(path).Length > 50_000, $"{name} looks like a placeholder");
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}
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// 2. The project packages each one as a WPF resource (an explicit item, not a guess).
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var csproj = SourceAssert.Text("ytLive.csproj");
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foreach (var name in Files)
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Assert.Contains($@"Assets\Fonts\{name}", csproj);
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// 3. The theme resolves each family from the pack folder — a bare family name would
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// only work if the user happened to have the font installed.
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var tokens = SourceAssert.Text("Themes", "Tokens.xaml");
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Assert.Contains("/Assets/Fonts/#Inter", tokens);
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Assert.Contains("/Assets/Fonts/#JetBrains Mono", tokens);
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// 4. The OFL obligations: notice in THIRD-PARTY-NOTICES.txt, license text beside the files.
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var notices = SourceAssert.Text("THIRD-PARTY-NOTICES.txt");
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Assert.Contains("Inter", notices);
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Assert.Contains("JetBrains Mono", notices);
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Assert.Contains("SIL Open Font License 1.1", notices);
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foreach (var ofl in new[] { "OFL-Inter.txt", "OFL-JetBrainsMono.txt" })
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{
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var text = SourceAssert.Text("Assets", "Fonts", ofl);
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Assert.Contains("SIL OPEN FONT LICENSE", text);
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}
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// 5. No other font family sneaks in through the token sheet.
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var families = SourceAssert.Text("Themes", "Tokens.xaml")
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.Split('\n')
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.Where(l => l.Contains("FontFamily x:Key=", System.StringComparison.Ordinal))
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.ToList();
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Assert.Equal(2, families.Count);
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}
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}
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