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176 lines
8.3 KiB
C#
176 lines
8.3 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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#nullable disable
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using System;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using NUnit.Framework;
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using osu.Framework.Allocation;
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using osu.Framework.Bindables;
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using osu.Framework.Extensions;
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using osu.Framework.Testing;
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using osu.Game.Beatmaps;
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using osu.Game.Rulesets;
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using osu.Game.Rulesets.Mods;
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using osu.Game.Rulesets.Osu.Mods;
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using osu.Game.Tests.Beatmaps.IO;
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using osu.Game.Tests.Visual;
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namespace osu.Game.Tests.Beatmaps
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{
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[HeadlessTest]
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public class TestSceneBeatmapDifficultyCache : OsuTestScene
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{
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public const double BASE_STARS = 5.55;
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private static readonly Guid guid = Guid.NewGuid();
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private BeatmapSetInfo importedSet;
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private TestBeatmapDifficultyCache difficultyCache;
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private IBindable<StarDifficulty?> starDifficultyBindable;
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[BackgroundDependencyLoader]
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private void load(OsuGameBase osu)
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{
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importedSet = BeatmapImportHelper.LoadQuickOszIntoOsu(osu).GetResultSafely();
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}
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[SetUpSteps]
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public void SetUpSteps()
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{
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AddStep("setup difficulty cache", () =>
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{
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SelectedMods.Value = Array.Empty<Mod>();
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Child = difficultyCache = new TestBeatmapDifficultyCache();
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starDifficultyBindable = difficultyCache.GetBindableDifficulty(importedSet.Beatmaps.First());
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});
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AddUntilStep($"star difficulty -> {BASE_STARS}", () => starDifficultyBindable.Value?.Stars == BASE_STARS);
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}
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[Test]
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public void TestStarDifficultyChangesOnModSettings()
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{
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OsuModDoubleTime dt = null;
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AddStep("set computation function", () => difficultyCache.ComputeDifficulty = lookup =>
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{
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var modRateAdjust = (ModRateAdjust)lookup.OrderedMods.SingleOrDefault(mod => mod is ModRateAdjust);
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return new StarDifficulty(BASE_STARS + modRateAdjust?.SpeedChange.Value ?? 0, 0);
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});
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AddStep("change selected mod to DT", () => SelectedMods.Value = new[] { dt = new OsuModDoubleTime { SpeedChange = { Value = 1.5 } } });
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AddUntilStep($"star difficulty -> {BASE_STARS + 1.5}", () => starDifficultyBindable.Value?.Stars == BASE_STARS + 1.5);
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AddStep("change DT speed to 1.25", () => dt.SpeedChange.Value = 1.25);
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AddUntilStep($"star difficulty -> {BASE_STARS + 1.25}", () => starDifficultyBindable.Value?.Stars == BASE_STARS + 1.25);
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AddStep("change selected mod to NC", () => SelectedMods.Value = new[] { new OsuModNightcore { SpeedChange = { Value = 1.75 } } });
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AddUntilStep($"star difficulty -> {BASE_STARS + 1.75}", () => starDifficultyBindable.Value?.Stars == BASE_STARS + 1.75);
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}
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[Test]
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public void TestStarDifficultyAdjustHashCodeConflict()
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{
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OsuModDifficultyAdjust difficultyAdjust = null;
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AddStep("set computation function", () => difficultyCache.ComputeDifficulty = lookup =>
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{
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var modDifficultyAdjust = (ModDifficultyAdjust)lookup.OrderedMods.SingleOrDefault(mod => mod is ModDifficultyAdjust);
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return new StarDifficulty(BASE_STARS * (modDifficultyAdjust?.OverallDifficulty.Value ?? 1), 0);
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});
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AddStep("change selected mod to DA", () => SelectedMods.Value = new[] { difficultyAdjust = new OsuModDifficultyAdjust() });
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AddUntilStep($"star difficulty -> {BASE_STARS}", () => starDifficultyBindable.Value?.Stars == BASE_STARS);
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AddStep("change DA difficulty to 0.5", () => difficultyAdjust.OverallDifficulty.Value = 0.5f);
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AddUntilStep($"star difficulty -> {BASE_STARS * 0.5f}", () => starDifficultyBindable.Value?.Stars == BASE_STARS / 2);
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// hash code of 0 (the value) conflicts with the hash code of null (the initial/default value).
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// it's important that the mod reference and its underlying bindable references stay the same to demonstrate this failure.
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AddStep("change DA difficulty to 0", () => difficultyAdjust.OverallDifficulty.Value = 0);
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AddUntilStep("star difficulty -> 0", () => starDifficultyBindable.Value?.Stars == 0);
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}
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[Test]
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public void TestKeyEqualsWithDifferentModInstances()
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{
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var key1 = new BeatmapDifficultyCache.DifficultyCacheLookup(new BeatmapInfo { ID = guid }, new RulesetInfo { OnlineID = 0 }, new Mod[] { new OsuModHardRock(), new OsuModHidden() });
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var key2 = new BeatmapDifficultyCache.DifficultyCacheLookup(new BeatmapInfo { ID = guid }, new RulesetInfo { OnlineID = 0 }, new Mod[] { new OsuModHardRock(), new OsuModHidden() });
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Assert.That(key1, Is.EqualTo(key2));
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Assert.That(key1.GetHashCode(), Is.EqualTo(key2.GetHashCode()));
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}
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[Test]
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public void TestKeyEqualsWithDifferentModOrder()
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{
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var key1 = new BeatmapDifficultyCache.DifficultyCacheLookup(new BeatmapInfo { ID = guid }, new RulesetInfo { OnlineID = 0 }, new Mod[] { new OsuModHardRock(), new OsuModHidden() });
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var key2 = new BeatmapDifficultyCache.DifficultyCacheLookup(new BeatmapInfo { ID = guid }, new RulesetInfo { OnlineID = 0 }, new Mod[] { new OsuModHidden(), new OsuModHardRock() });
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Assert.That(key1, Is.EqualTo(key2));
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Assert.That(key1.GetHashCode(), Is.EqualTo(key2.GetHashCode()));
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}
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[Test]
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public void TestKeyDoesntEqualWithDifferentModSettings()
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{
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var key1 = new BeatmapDifficultyCache.DifficultyCacheLookup(new BeatmapInfo { ID = guid }, new RulesetInfo { OnlineID = 0 }, new Mod[] { new OsuModDoubleTime { SpeedChange = { Value = 1.1 } } });
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var key2 = new BeatmapDifficultyCache.DifficultyCacheLookup(new BeatmapInfo { ID = guid }, new RulesetInfo { OnlineID = 0 }, new Mod[] { new OsuModDoubleTime { SpeedChange = { Value = 1.9 } } });
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Assert.That(key1, Is.Not.EqualTo(key2));
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Assert.That(key1.GetHashCode(), Is.Not.EqualTo(key2.GetHashCode()));
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}
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[Test]
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public void TestKeyEqualWithMatchingModSettings()
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{
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var key1 = new BeatmapDifficultyCache.DifficultyCacheLookup(new BeatmapInfo { ID = guid }, new RulesetInfo { OnlineID = 0 }, new Mod[] { new OsuModDoubleTime { SpeedChange = { Value = 1.25 } } });
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var key2 = new BeatmapDifficultyCache.DifficultyCacheLookup(new BeatmapInfo { ID = guid }, new RulesetInfo { OnlineID = 0 }, new Mod[] { new OsuModDoubleTime { SpeedChange = { Value = 1.25 } } });
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Assert.That(key1, Is.EqualTo(key2));
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Assert.That(key1.GetHashCode(), Is.EqualTo(key2.GetHashCode()));
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}
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[TestCase(1.3, DifficultyRating.Easy)]
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[TestCase(1.993, DifficultyRating.Easy)]
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[TestCase(1.998, DifficultyRating.Normal)]
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[TestCase(2.4, DifficultyRating.Normal)]
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[TestCase(2.693, DifficultyRating.Normal)]
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[TestCase(2.698, DifficultyRating.Hard)]
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[TestCase(3.5, DifficultyRating.Hard)]
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[TestCase(3.993, DifficultyRating.Hard)]
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[TestCase(3.997, DifficultyRating.Insane)]
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[TestCase(5.0, DifficultyRating.Insane)]
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[TestCase(5.292, DifficultyRating.Insane)]
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[TestCase(5.297, DifficultyRating.Expert)]
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[TestCase(6.2, DifficultyRating.Expert)]
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[TestCase(6.493, DifficultyRating.Expert)]
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[TestCase(6.498, DifficultyRating.ExpertPlus)]
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[TestCase(8.3, DifficultyRating.ExpertPlus)]
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public void TestDifficultyRatingMapping(double starRating, DifficultyRating expectedBracket)
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{
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var actualBracket = StarDifficulty.GetDifficultyRating(starRating);
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Assert.AreEqual(expectedBracket, actualBracket);
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}
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private class TestBeatmapDifficultyCache : BeatmapDifficultyCache
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{
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public Func<DifficultyCacheLookup, StarDifficulty> ComputeDifficulty { get; set; }
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protected override Task<StarDifficulty?> ComputeValueAsync(DifficultyCacheLookup lookup, CancellationToken token = default)
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{
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return Task.FromResult<StarDifficulty?>(ComputeDifficulty?.Invoke(lookup) ?? new StarDifficulty(BASE_STARS, 0));
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}
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}
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}
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}
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