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osu-lazer/osu.Game.Tests/Beatmaps/IO/LegacyBeatmapExporterTest.cs
Bartłomiej Dach dfa32302ac
Add test case covering stability of compatibility export operation
This is important as the format will be used more when lazer beatmap
submission comes online, and its stability is a useful property for
that.

Included archive contains an `.osu` with a few fractional-millisecond
timing points and objects, as well as a multi-segment-type slider. That
should cover the range of all possible modifications that the
compatibility exporter currently performs.
2024-11-20 13:26:54 +01:00

107 lines
4.7 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System.IO;
using System.Text;
using NUnit.Framework;
using osu.Framework.Allocation;
using osu.Framework.Extensions;
using osu.Framework.Extensions.ObjectExtensions;
using osu.Framework.Testing;
using osu.Game.Beatmaps;
using osu.Game.Database;
using osu.Game.IO.Archives;
using osu.Game.Tests.Resources;
using osu.Game.Tests.Visual;
using MemoryStream = System.IO.MemoryStream;
namespace osu.Game.Tests.Beatmaps.IO
{
[HeadlessTest]
public partial class LegacyBeatmapExporterTest : OsuTestScene
{
[Resolved]
private BeatmapManager beatmaps { get; set; } = null!;
[Test]
public void TestObjectsSnappedAfterTruncatingExport()
{
IWorkingBeatmap beatmap = null!;
MemoryStream outStream = null!;
// Ensure importer encoding is correct
AddStep("import beatmap", () => beatmap = importBeatmapFromArchives(@"decimal-timing-beatmap.olz"));
AddAssert("timing point has decimal offset", () => beatmap.Beatmap.ControlPointInfo.TimingPoints[0].Time, () => Is.EqualTo(284.725).Within(0.001));
AddAssert("kiai has decimal offset", () => beatmap.Beatmap.ControlPointInfo.EffectPoints[0].Time, () => Is.EqualTo(28520.019).Within(0.001));
AddAssert("hit object has decimal offset", () => beatmap.Beatmap.HitObjects[0].StartTime, () => Is.EqualTo(28520.019).Within(0.001));
// Ensure exporter legacy conversion is correct
AddStep("export", () =>
{
outStream = new MemoryStream();
new LegacyBeatmapExporter(LocalStorage)
.ExportToStream((BeatmapSetInfo)beatmap.BeatmapInfo.BeatmapSet!, outStream, null);
});
AddStep("import beatmap again", () => beatmap = importBeatmapFromStream(outStream));
AddAssert("timing point has truncated offset", () => beatmap.Beatmap.ControlPointInfo.TimingPoints[0].Time, () => Is.EqualTo(284).Within(0.001));
AddAssert("kiai is snapped", () => beatmap.Beatmap.ControlPointInfo.EffectPoints[0].Time, () => Is.EqualTo(28519).Within(0.001));
AddAssert("hit object is snapped", () => beatmap.Beatmap.HitObjects[0].StartTime, () => Is.EqualTo(28519).Within(0.001));
}
[Test]
public void TestExportStability()
{
IWorkingBeatmap beatmap = null!;
MemoryStream firstExport = null!;
MemoryStream secondExport = null!;
// Ensure importer encoding is correct
AddStep("import beatmap", () => beatmap = importBeatmapFromArchives(@"legacy-export-stability-test.olz"));
AddStep("export once", () =>
{
firstExport = new MemoryStream();
new LegacyBeatmapExporter(LocalStorage)
.ExportToStream((BeatmapSetInfo)beatmap.BeatmapInfo.BeatmapSet!, firstExport, null);
});
AddStep("import beatmap again", () => beatmap = importBeatmapFromStream(firstExport));
AddStep("export again", () =>
{
secondExport = new MemoryStream();
new LegacyBeatmapExporter(LocalStorage)
.ExportToStream((BeatmapSetInfo)beatmap.BeatmapInfo.BeatmapSet!, secondExport, null);
});
const string osu_filename = @"legacy export - stability test (spaceman_atlas) [].osu";
AddAssert("exports are identical",
() => getStringContentsOf(osu_filename, firstExport.GetBuffer()),
() => Is.EqualTo(getStringContentsOf(osu_filename, secondExport.GetBuffer())));
string getStringContentsOf(string filename, byte[] archiveBytes)
{
using var memoryStream = new MemoryStream(archiveBytes);
using var archiveReader = new ZipArchiveReader(memoryStream);
byte[] fileContent = archiveReader.GetStream(filename).ReadAllBytesToArray();
return Encoding.UTF8.GetString(fileContent);
}
}
private IWorkingBeatmap importBeatmapFromStream(Stream stream)
{
var imported = beatmaps.Import(new ImportTask(stream, "filename.osz")).GetResultSafely();
return imported.AsNonNull().PerformRead(s => beatmaps.GetWorkingBeatmap(s.Beatmaps[0]));
}
private IWorkingBeatmap importBeatmapFromArchives(string filename)
{
var imported = beatmaps.Import(new ImportTask(TestResources.OpenResource($@"Archives/{filename}"), filename)).GetResultSafely();
return imported.AsNonNull().PerformRead(s => beatmaps.GetWorkingBeatmap(s.Beatmaps[0]));
}
}
}