1.5 PaletteEntry value type

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-06-07 14:09:15 +02:00
parent 7d9c7ba338
commit fa0081b923
3 changed files with 230 additions and 1 deletions
--- a/tests/FrameProcessor.Tests/PaletteEntryTests.cs
+++ b/tests/FrameProcessor.Tests/PaletteEntryTests.cs
@@ -0,0 +1,111 @@
+using System.Text.Json;
+using FrameProcessor.Domain;
+using SixLabors.ImageSharp;
+using SixLabors.ImageSharp.PixelFormats;
+
+namespace FrameProcessor.Tests;
+
+public class PaletteEntryTests
+{
+    [Fact]
+    public void JsonDeserialize_ParsesHexIntoColor()
+    {
+        const string json = """{ "name": "black", "color": "#1F2226", "deviceColor": "#000000" }""";
+
+        var entry = JsonSerializer.Deserialize<PaletteEntry>(json);
+
+        Assert.NotNull(entry);
+        Assert.Equal("black", entry!.Name);
+        Assert.Equal(new Rgba32(0x1F, 0x22, 0x26, 0xFF), entry.DisplayColor.ToPixel<Rgba32>());
+        Assert.Equal(new Rgba32(0x00, 0x00, 0x00, 0xFF), entry.DeviceColor.ToPixel<Rgba32>());
+    }
+
+    [Fact]
+    public void JsonDeserialize_HexWithoutHashIsAccepted()
+    {
+        const string json = """{ "name": "red", "color": "62201E", "deviceColor": "FF0000" }""";
+
+        var entry = JsonSerializer.Deserialize<PaletteEntry>(json);
+
+        Assert.NotNull(entry);
+        Assert.Equal(new Rgba32(0x62, 0x20, 0x1E, 0xFF), entry!.DisplayColor.ToPixel<Rgba32>());
+        Assert.Equal(new Rgba32(0xFF, 0x00, 0x00, 0xFF), entry.DeviceColor.ToPixel<Rgba32>());
+    }
+
+    [Fact]
+    public void JsonSerialize_EmitsHashPrefixedSixDigitHex()
+    {
+        var entry = new PaletteEntry(
+            "yellow",
+            Color.FromPixel(new Rgba32(0xC1, 0xBB, 0x1E, 0xFF)),
+            Color.FromPixel(new Rgba32(0xFF, 0xFF, 0x00, 0xFF)));
+
+        var json = JsonSerializer.Serialize(entry);
+
+        Assert.Contains("\"name\":\"yellow\"", json);
+        Assert.Contains("\"color\":\"#C1BB1E\"", json);
+        Assert.Contains("\"deviceColor\":\"#FFFF00\"", json);
+    }
+
+    [Fact]
+    public void JsonRoundTrip_PreservesValues()
+    {
+        var original = new PaletteEntry(
+            "blue",
+            Color.FromPixel(new Rgba32(0x23, 0x3F, 0x8E, 0xFF)),
+            Color.FromPixel(new Rgba32(0x00, 0x00, 0xFF, 0xFF)));
+
+        var json = JsonSerializer.Serialize(original);
+        var roundTripped = JsonSerializer.Deserialize<PaletteEntry>(json);
+
+        Assert.Equal(original, roundTripped);
+    }
+
+    [Theory]
+    [InlineData("""{ "color": "#000000", "deviceColor": "#000000" }""")]
+    [InlineData("""{ "name": "x", "deviceColor": "#000000" }""")]
+    [InlineData("""{ "name": "x", "color": "#000000" }""")]
+    public void JsonDeserialize_MissingField_Throws(string json)
+    {
+        Assert.Throws<JsonException>(() => JsonSerializer.Deserialize<PaletteEntry>(json));
+    }
+
+    [Theory]
+    [InlineData("""{ "name": "x", "color": "not-a-color", "deviceColor": "#000000" }""")]
+    [InlineData("""{ "name": "x", "color": "#000000", "deviceColor": "zzz" }""")]
+    [InlineData("""{ "name": "x", "color": "", "deviceColor": "#000000" }""")]
+    public void JsonDeserialize_InvalidHex_Throws(string json)
+    {
+        Assert.Throws<JsonException>(() => JsonSerializer.Deserialize<PaletteEntry>(json));
+    }
+
+    [Fact]
+    public void JsonDeserialize_EmptyName_Throws()
+    {
+        const string json = """{ "name": "", "color": "#000000", "deviceColor": "#000000" }""";
+
+        Assert.Throws<JsonException>(() => JsonSerializer.Deserialize<PaletteEntry>(json));
+    }
+
+    [Fact]
+    public void JsonDeserialize_UnknownFields_AreIgnored()
+    {
+        const string json = """{ "name": "black", "color": "#000000", "deviceColor": "#000000", "extra": 42 }""";
+
+        var entry = JsonSerializer.Deserialize<PaletteEntry>(json);
+
+        Assert.NotNull(entry);
+        Assert.Equal("black", entry!.Name);
+    }
+
+    [Fact]
+    public void Equality_BasedOnNameAndColors()
+    {
+        var a = new PaletteEntry("black", Color.Black, Color.Black);
+        var b = new PaletteEntry("black", Color.Black, Color.Black);
+        var c = new PaletteEntry("white", Color.Black, Color.Black);
+
+        Assert.Equal(a, b);
+        Assert.NotEqual(a, c);
+    }
+}