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ersatztv/ErsatzTV.Core.Tests/Images/ChannelLogoGeneratorTests.cs
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test: make channel logo generator testable
refs #39
2026-06-30 18:14:23 +02:00

42 lines
1.4 KiB
C#

using ErsatzTV.Core.Images;
using Microsoft.Extensions.Logging.Abstractions;
using NUnit.Framework;
using Shouldly;
using SkiaSharp;
namespace ErsatzTV.Core.Tests.Images;
[TestFixture]
public class ChannelLogoGeneratorTests
{
[TestCase("News", 100, 200)]
[TestCase("A Very Long Channel Name That Should Force Font Shrinking", 100, 200)]
[TestCase("Tall Logo", 180, 120)]
public void GenerateChannelLogo_WithInjectedAssets_ReturnsValidPngWithRequestedDimensions(
string text,
int logoHeight,
int logoWidth)
{
var generator = new ChannelLogoGenerator(
NullLogger<ChannelLogoGenerator>.Instance,
TestAssetPath("Resources", "Images", "ersatztv-500.png"),
TestAssetPath("Resources", "Fonts", "Sen.ttf"));
byte[] bytes = generator.GenerateChannelLogo(text, logoHeight, logoWidth, CancellationToken.None)
.Match(
Left: error => throw new AssertionException(error.Value),
Right: identity);
using var stream = new MemoryStream(bytes);
using var codec = SKCodec.Create(stream);
codec.ShouldNotBeNull();
codec.EncodedFormat.ShouldBe(SKEncodedImageFormat.Png);
codec.Info.Width.ShouldBe(logoWidth);
codec.Info.Height.ShouldBe(logoHeight);
}
private static string TestAssetPath(params string[] segments) =>
Path.Combine([TestContext.CurrentContext.TestDirectory, .. segments]);
}