add regression tests

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

@@ -0,0 +1,50 @@
+// 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.Collections.Generic;
+using osu.Game.Rulesets.Mania.Beatmaps;
+using NUnit.Framework;
+
+namespace osu.Game.Rulesets.Mania.Tests
+{
+    [TestFixture]
+    public class ManiaColumnTypeTest
+    {
+        [TestCase(new[]
+        {
+            ColumnType.Special
+        }, 1)]
+        [TestCase(new[]
+        {
+            ColumnType.Odd,
+            ColumnType.Even,
+            ColumnType.Even,
+            ColumnType.Odd
+        }, 4)]
+        [TestCase(new[]
+        {
+            ColumnType.Odd,
+            ColumnType.Even,
+            ColumnType.Odd,
+            ColumnType.Special,
+            ColumnType.Odd,
+            ColumnType.Even,
+            ColumnType.Odd
+        }, 7)]
+        public void Test(IEnumerable<ColumnType> expected, int columns)
+        {
+            var definition = new StageDefinition
+            {
+                Columns = columns
+            };
+            var results = getResults(definition);
+            Assert.AreEqual(expected, results);
+        }
+
+        private IEnumerable<ColumnType> getResults(StageDefinition definition)
+        {
+            for (var i = 0; i < definition.Columns; i++)
+                yield return definition.GetTypeOfColumn(i);
+        }
+    }
+}