Add mania sample conversion test

osu.Game.Rulesets.Mania.Tests/ManiaBeatmapSampleConversionTest.cs

@@ -0,0 +1,72 @@
+// 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;
+using System.Collections.Generic;
+using System.Linq;
+using NUnit.Framework;
+using osu.Framework.Utils;
+using osu.Game.Audio;
+using osu.Game.Rulesets.Mania.Objects;
+using osu.Game.Rulesets.Objects;
+using osu.Game.Tests.Beatmaps;
+
+namespace osu.Game.Rulesets.Mania.Tests
+{
+    [TestFixture]
+    public class ManiaBeatmapSampleConversionTest : BeatmapConversionTest<ConvertMapping<SampleConvertValue>, SampleConvertValue>
+    {
+        protected override string ResourceAssembly => "osu.Game.Rulesets.Mania";
+
+        public void Test(string name) => base.Test(name);
+
+        protected override IEnumerable<SampleConvertValue> CreateConvertValue(HitObject hitObject)
+        {
+            yield return new SampleConvertValue
+            {
+                StartTime = hitObject.StartTime,
+                EndTime = hitObject.GetEndTime(),
+                Column = ((ManiaHitObject)hitObject).Column,
+                NodeSamples = getSampleNames((hitObject as HoldNote)?.NodeSamples)
+            };
+        }
+
+        private IList<IList<string>> getSampleNames(List<IList<HitSampleInfo>> hitSampleInfo)
+            => hitSampleInfo?.Select(samples =>
+                                (IList<string>)samples.Select(sample => sample.LookupNames.First()).ToList())
+                            .ToList();
+
+        protected override Ruleset CreateRuleset() => new ManiaRuleset();
+    }
+
+    public struct SampleConvertValue : IEquatable<SampleConvertValue>
+    {
+        /// <summary>
+        /// A sane value to account for osu!stable using ints everywhere.
+        /// </summary>
+        private const float conversion_lenience = 2;
+
+        public double StartTime;
+        public double EndTime;
+        public int Column;
+        public IList<IList<string>> NodeSamples;
+
+        public bool Equals(SampleConvertValue other)
+            => Precision.AlmostEquals(StartTime, other.StartTime, conversion_lenience)
+               && Precision.AlmostEquals(EndTime, other.EndTime, conversion_lenience)
+               && samplesEqual(NodeSamples, other.NodeSamples);
+
+        private static bool samplesEqual(ICollection<IList<string>> first, ICollection<IList<string>> second)
+        {
+            if (first == null && second == null)
+                return true;
+
+            // both items can't be null now, so if any single one is, then they're not equal
+            if (first == null || second == null)
+                return false;
+
+            return first.Count == second.Count
+                   && first.Zip(second).All(samples => samples.First.SequenceEqual(samples.Second));
+        }
+    }
+}