gramps
51d9dd09c7
My own regression from the previous commit: the plate Border WRAPPED the bar's content and its Visibility was bound to BarBackgroundEnabled — so with the plate off (the default) the preview collapsed the entire social bar. Nothing was wrong with the data; the element was there and invisible. Fix: the wrapper is always laid out. "Plate off" now means a TRANSPARENT background (`SocialBarBackgroundBrush` returns Transparent when disabled) and zero padding, "on" means the colour/opacity plate with 18,6 padding — which also matches what the renderer bakes for the output, so preview and broadcast agree. Guard (new fact in SocialBarAppearanceTests): the preview must never visibility-gate the bar on BarBackgroundEnabled, the wrapper must bind SocialBarBackgroundBrush, and the plate's switching must be Padding.
93 lines
4.2 KiB
C#
93 lines
4.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Threading;
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using System.Windows.Media;
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using Xunit;
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using ytLive.Models;
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using ytLive.Services;
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using ytLive.Services.Compositor;
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namespace ytLive.Tests;
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/// <summary>The creator (2026-10-30): the social bar was hard-wired white-on-transparent. It now
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/// takes a text colour, an optional background plate with its own colour and opacity, and a text
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/// drop shadow — set in the Socials drawer.
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///
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/// <para>These knobs are painting rules, so the test paints the real strip and inspects its
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/// pixels. Anything less would pass while the bar rendered unchanged.</para></summary>
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public class SocialBarAppearanceTests
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{
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private static readonly List<SocialEntry> Entries = new()
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{
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new SocialEntry { Service = SocialService.YouTube, Handle = "creator", ProfileUrl = "https://youtube.com/@creator" },
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};
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[Fact]
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public void The_bar_paints_the_chosen_text_colour_plate_and_shadow()
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{
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Exception? failure = null;
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var results = new List<string>();
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var thread = new Thread(() =>
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{
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try
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{
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// 1. Default look: white glyphs, no plate, no shadow.
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var plain = Render(SocialBarStyle.Default);
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Assert.NotNull(plain);
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Assert.True(Count(plain!, (r, g, b, a) => r > 200 && g > 200 && b > 200 && a > 200) > 0,
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"white glyphs must be painted by default");
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Assert.Equal(0, Count(plain!, (r, g, b, a) => b > 150 && r < 80 && g < 80));
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// 2. Text colour: red glyphs, nothing white.
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var red = Render(new SocialBarStyle("#FF0000", false, "#000000", 0.55, false));
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Assert.True(Count(red!, (r, g, b, a) => r > 180 && g < 80 && b < 80 && a > 200) > 0,
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"the text colour must reach the glyph pixels");
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Assert.Equal(0, Count(red!, (r, g, b, a) => r > 200 && g > 200 && b > 200 && a > 200));
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// 3. Plate: blue at 55% — half-transparent blue pixels must appear.
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var plated = Render(new SocialBarStyle("#FFFFFF", true, "#0000FF", 0.55, false));
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Assert.True(Count(plated!, (r, g, b, a) => b > 150 && r < 60 && g < 60 && a is > 100 and < 170) > 200,
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"the plate must fill with its colour at the chosen opacity");
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// 4. Shadow: dark semi-transparent pixels appear beside the glyphs.
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var shadowed = Render(new SocialBarStyle("#FFFFFF", false, "#000000", 0.55, true));
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Assert.True(Count(shadowed!, (r, g, b, a) => r < 60 && g < 60 && b < 60 && a is > 0 and < 200)
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> Count(plain!, (r, g, b, a) => r < 60 && g < 60 && b < 60 && a is > 0 and < 200),
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"the drop shadow must add dark pixels behind the glyphs");
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}
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catch (Exception ex) { failure = ex; }
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});
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thread.SetApartmentState(ApartmentState.STA);
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thread.Start();
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thread.Join();
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Assert.Null(failure);
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}
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[Fact]
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public void The_preview_bar_is_never_hidden_by_the_plate_switch()
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{
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// Regression, 2026-10-30: the plate Border wrapped the whole bar and its Visibility was
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// bound to BarBackgroundEnabled, so turning the plate off (the default) removed the bar
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// from the preview entirely. "Plate off" must mean a transparent plate.
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var preview = SourceAssert.Text("Controls", "PreviewPane.xaml");
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Assert.DoesNotContain("Socials.BarBackgroundEnabled, Converter={StaticResource BoolToVis}", preview);
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Assert.Contains("{Binding SocialBarBackgroundBrush}", preview);
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// The plate's PADDING is what switches with the toggle, not the element's presence.
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Assert.Contains("<Setter Property=\"Padding\" Value=\"18,6\"/>", preview);
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}
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private static VideoFrame? Render(SocialBarStyle style) => SocialBarRenderer.Render(Entries, style);
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private static int Count(VideoFrame frame, Func<int, int, int, int, bool> predicate)
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{
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var hits = 0;
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for (var i = 0; i < frame.BgraPixels.Length; i += 4)
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if (predicate(frame.BgraPixels[i + 2], frame.BgraPixels[i + 1], frame.BgraPixels[i], frame.BgraPixels[i + 3]))
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hits++;
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return hits;
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}
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}
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