mirror of https://github.com/ppy/osu
113 lines
3.8 KiB
C#
113 lines
3.8 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text;
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using NUnit.Framework;
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using osu.Framework.Audio.Track;
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using osu.Framework.Graphics.Textures;
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using osu.Game.Beatmaps;
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using osu.Game.Beatmaps.ControlPoints;
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using osu.Game.Beatmaps.Formats;
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using osu.Game.IO;
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using osu.Game.IO.Serialization;
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using osu.Game.Rulesets.Catch;
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using osu.Game.Rulesets.Mania;
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using osu.Game.Rulesets.Osu;
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using osu.Game.Rulesets.Taiko;
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using osu.Game.Tests.Resources;
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namespace osu.Game.Tests.Beatmaps.Formats
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{
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[TestFixture]
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public class LegacyBeatmapEncoderTest
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{
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private static IEnumerable<string> allBeatmaps => TestResources.GetStore().GetAvailableResources().Where(res => res.EndsWith(".osu"));
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[TestCaseSource(nameof(allBeatmaps))]
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public void TestEncodeDecodeStability(string name)
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{
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var decoded = decodeFromLegacy(TestResources.GetStore().GetStream(name));
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var decodedAfterEncode = decodeFromLegacy(encodeToLegacy(decoded));
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sort(decoded);
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sort(decodedAfterEncode);
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Assert.That(decodedAfterEncode.Serialize(), Is.EqualTo(decoded.Serialize()));
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}
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private void sort(IBeatmap beatmap)
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{
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// Sort control points to ensure a sane ordering, as they may be parsed in different orders. This works because each group contains only uniquely-typed control points.
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foreach (var g in beatmap.ControlPointInfo.Groups)
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{
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ArrayList.Adapter((IList)g.ControlPoints).Sort(
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Comparer<ControlPoint>.Create((c1, c2) => string.Compare(c1.GetType().ToString(), c2.GetType().ToString(), StringComparison.Ordinal)));
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}
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}
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private IBeatmap decodeFromLegacy(Stream stream)
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{
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using (var reader = new LineBufferedReader(stream))
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return convert(new LegacyBeatmapDecoder { ApplyOffsets = false }.Decode(reader));
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}
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private Stream encodeToLegacy(IBeatmap beatmap)
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{
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var stream = new MemoryStream();
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using (var writer = new StreamWriter(stream, Encoding.UTF8, 1024, true))
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new LegacyBeatmapEncoder(beatmap).Encode(writer);
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stream.Position = 0;
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return stream;
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}
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private IBeatmap convert(IBeatmap beatmap)
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{
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switch (beatmap.BeatmapInfo.RulesetID)
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{
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case 0:
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beatmap.BeatmapInfo.Ruleset = new OsuRuleset().RulesetInfo;
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break;
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case 1:
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beatmap.BeatmapInfo.Ruleset = new TaikoRuleset().RulesetInfo;
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break;
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case 2:
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beatmap.BeatmapInfo.Ruleset = new CatchRuleset().RulesetInfo;
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break;
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case 3:
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beatmap.BeatmapInfo.Ruleset = new ManiaRuleset().RulesetInfo;
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break;
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}
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return new TestWorkingBeatmap(beatmap).GetPlayableBeatmap(beatmap.BeatmapInfo.Ruleset);
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}
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private class TestWorkingBeatmap : WorkingBeatmap
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{
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private readonly IBeatmap beatmap;
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public TestWorkingBeatmap(IBeatmap beatmap)
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: base(beatmap.BeatmapInfo, null)
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{
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this.beatmap = beatmap;
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}
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protected override IBeatmap GetBeatmap() => beatmap;
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protected override Texture GetBackground() => throw new NotImplementedException();
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protected override Track GetTrack() => throw new NotImplementedException();
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}
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}
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}
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