58 lines
2.2 KiB
C#
58 lines
2.2 KiB
C#
using Microsoft.Extensions.Logging.Abstractions;
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using Musify.Infrastructure.Services;
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using SixLabors.ImageSharp;
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using SixLabors.ImageSharp.PixelFormats;
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using Xunit;
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namespace Musify.Infrastructure.Tests.Services;
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public sealed class PictureServiceTests
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{
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private static PictureService CreateService() => new(NullLogger<PictureService>.Instance);
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private static MemoryStream CreateSourceImage(int width, int height)
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{
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using var image = new Image<Rgba32>(width, height, new Rgba32(255, 0, 0));
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var stream = new MemoryStream();
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image.SaveAsPng(stream);
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stream.Position = 0;
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return stream;
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}
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[Fact]
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public async Task ResizePictureAsWebpAsync_LargerThanTarget_ShrinksToFitWithinTheRequestedBox()
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{
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using var source = CreateSourceImage(800, 600);
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await using var resized = await CreateService().ResizePictureAsWebpAsync(source, 200, 200, TestContext.Current.CancellationToken);
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using var result = await Image.LoadAsync(resized, TestContext.Current.CancellationToken);
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Assert.InRange(result.Width, 1, 200);
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Assert.InRange(result.Height, 1, 200);
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Assert.True(result.Width == 200 || result.Height == 200, "expected the longer side to land exactly on the target box");
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}
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[Fact]
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public async Task ResizePictureAsWebpAsync_ReturnsAValidWebpStream()
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{
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using var source = CreateSourceImage(100, 100);
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await using var resized = await CreateService().ResizePictureAsWebpAsync(source, 50, 50, TestContext.Current.CancellationToken);
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var format = await Image.DetectFormatAsync(resized, TestContext.Current.CancellationToken);
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Assert.Equal("WEBP", format?.Name, ignoreCase: true);
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}
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[Fact]
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public async Task ResizePictureAsWebpAsync_PreservesAspectRatio()
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{
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using var source = CreateSourceImage(400, 200);
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await using var resized = await CreateService().ResizePictureAsWebpAsync(source, 100, 100, TestContext.Current.CancellationToken);
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using var result = await Image.LoadAsync(resized, TestContext.Current.CancellationToken);
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Assert.Equal(100, result.Width);
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Assert.Equal(50, result.Height);
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}
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}
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