Rewrite round generation and add unit test

VocaluxeTests/PartyModeTests.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Vocaluxe.Base;
+using VocaluxeLib;
+using VocaluxeLib.PartyModes.Challenge;
+
+namespace VocaluxeTests
+{
+    [TestClass]
+    public class CPartyModeTests
+    {
+        [TestMethod]
+        public void TestRoundBoundaries()
+        {
+            // ReSharper disable ObjectCreationAsStatement
+            new CChallengeRounds(1, 1, 1); // Should succeed
+            // ReSharper restore ObjectCreationAsStatement
+            for (int inv = -1; inv <= 0; inv++)
+            {
+                int invL = inv;
+                CTestHelpers.AssertFail<ArgumentException>(() => new CChallengeRounds(invL, 1, 1));
+                CTestHelpers.AssertFail<ArgumentException>(() => new CChallengeRounds(1, invL, 1));
+                CTestHelpers.AssertFail<ArgumentException>(() => new CChallengeRounds(1, 1, invL));
+            }
+        }
+
+        private static void _CheckRounds(CChallengeRounds rounds, int numPlayer)
+        {
+            List<int> numSongs = new List<int>(numPlayer);
+            for (int i = 0; i < numPlayer; i++)
+                numSongs.Add(0);
+            for (int i = 0; i < rounds.Count; i++)
+            {
+                foreach (int player in rounds[i].Players)
+                {
+                    Assert.IsTrue(player >= 0 && player < numPlayer);
+                    numSongs[player]++;
+                }
+            }
+            Assert.IsTrue(numSongs.Min() == numSongs.Max(), "Some players have more songs than others");
+        }
+
+        [TestMethod]
+        public void TestRoundGeneration()
+        {
+            CBase.Game = new CBGame();
+            CLog.Init();
+            CBase.Log = new CBlog();
+            for (int i = 0; i < 10; i++)
+            {
+                for (int numPlayer = 1; numPlayer <= 20; numPlayer++)
+                {
+                    for (int numMic = 1; numMic <= 6; numMic++)
+                    {
+                        int roundFactor = (numPlayer % numMic == 0) ? numPlayer / numMic : numPlayer;
+                        for (int numRounds = roundFactor; numRounds <= 100 && numRounds <= roundFactor * 5; numRounds += roundFactor)
+                        {
+                            CChallengeRounds rounds = new CChallengeRounds(numRounds, numPlayer, numMic);
+                            Assert.IsTrue(rounds.Count >= numRounds);
+                            _CheckRounds(rounds, numPlayer);
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

VocaluxeTests/VocaluxeTests.csproj

@@ -73,9 +73,14 @@
     <Compile Include="CTestHelpers.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="CombinatoricsTest.cs" />
+    <Compile Include="PartyModeTests.cs" />
     <Compile Include="XmlSerializerTest.cs" />
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\PartyModes\PartyModeChallenge\PartyModeChallenge.csproj">
+      <Project>{5a4053f1-5ad5-441f-b254-d97a088127b6}</Project>
+      <Name>PartyModeChallenge</Name>
+    </ProjectReference>
     <ProjectReference Include="..\VocaluxeLib\VocaluxeLib.csproj">
       <Project>{d2b6ddef-e0e1-4ddf-a73a-e6acef5c95ec}</Project>
       <Name>VocaluxeLib</Name>