Add test cases for move order

MultiversalDiplomacy/Model/Regex.cs

@@ -19,7 +19,7 @@ public class OrderRegex(World world)
 
     public string FullLocation => $"(?:{Timeline}-)?{world.Map.ProvinceRegex}(?:{SlashLocation}|{ParenLocation})?(?:@{Turn})?";
 
-    public string UnitSpec => $"(?:(?:{world.Map.PowerRegex} )?{Type} )?{FullLocation}";
+    public string UnitSpec => $"(?:{Type} )?{FullLocation}";
 
     public const string HoldVerb = "(h|hold|holds)";
 
@@ -27,59 +27,59 @@ public class OrderRegex(World world)
 
     public const string ViaConvoy = "(convoy|via convoy|by convoy)";
 
-    public Regex Hold => new($"^{Unit} {HoldVerb}$");
+    public Regex Hold => new(
+        $"^{UnitSpec} {HoldVerb}$",
+        RegexOptions.IgnoreCase);
 
     public static (
-        string power,
         string type,
         string timeline,
         string province,
         string location,
         string turn,
-        string verb)
-        ParseHold(Match match)
-            => (match.Groups[1].Value,
+        string holdVerb)
+        ParseHold(Match match) => (
+            match.Groups[1].Value,
             match.Groups[2].Value,
             match.Groups[3].Value,
-                match.Groups[4].Value,
-                match.Groups[5].Length > 0
-                    ? match.Groups[5].Value
-                    : match.Groups[6].Value,
-                match.Groups[7].Value,
-                match.Groups[8].Value);
+            match.Groups[4].Length > 0
+                ? match.Groups[4].Value
+                : match.Groups[5].Value,
+            match.Groups[6].Value,
+            match.Groups[7].Value);
 
-    public Regex Move => new($"^{UnitSpec} {MoveVerb} {FullLocation}$(?: {ViaConvoy})?");
+    public Regex Move => new(
+        $"^{UnitSpec} {MoveVerb} {FullLocation}(?: {ViaConvoy})?$",
+        RegexOptions.IgnoreCase);
 
     public static (
-        string power,
         string type,
         string timeline,
         string province,
         string location,
         string turn,
-        string verb,
-        string timeline2,
-        string province2,
-        string location2,
-        string turn2,
+        string moveVerb,
+        string destTimeline,
+        string destProvince,
+        string destLocation,
+        string destTurn,
         string viaConvoy)
-        ParseMove(Match match)
-            => (match.Groups[1].Value,
+        ParseMove(Match match) => (
+            match.Groups[1].Value,
             match.Groups[2].Value,
             match.Groups[3].Value,
-                match.Groups[4].Value,
-                match.Groups[5].Length > 0
-                    ? match.Groups[5].Value
-                    : match.Groups[6].Value,
+            match.Groups[4].Length > 0
+                ? match.Groups[4].Value
+                : match.Groups[5].Value,
+            match.Groups[6].Value,
             match.Groups[7].Value,
             match.Groups[8].Value,
             match.Groups[9].Value,
-                match.Groups[10].Value,
-                match.Groups[11].Length > 1
-                    ? match.Groups[11].Value
-                    : match.Groups[12].Value,
-                match.Groups[13].Value,
-                match.Groups[14].Value);
+            match.Groups[10].Length > 0
+                ? match.Groups[10].Value
+                : match.Groups[11].Value,
+            match.Groups[12].Value,
+            match.Groups[13].Value);
 
     public static bool TryParseUnit(World world, string unitSpec, [NotNullWhen(true)] out Unit? newUnit)
     {

MultiversalDiplomacyTests/RegexTest.cs

@@ -1,5 +1,3 @@
-using System.Text.RegularExpressions;
-
 using NUnit.Framework;
 
 using MultiversalDiplomacy.Model;
@@ -8,62 +6,96 @@ namespace MultiversalDiplomacyTests;
 
 public class RegexTest
 {
-    [Test]
-    public void UnitTokenizer()
+    private static TestCaseData Test(string order, params string[] expected)
+        => new TestCaseData(order, expected).SetName($"{{m}}(\"{order}\")");
+
+    static IEnumerable<TestCaseData> HoldRegexMatchesTestCases()
     {
-        World world = World.WithStandardMap();
-        OrderRegex re = new(world);
+        // Full specification
+        yield return Test(
+            "Army a-Munich/l@0 holds",
+            "Army", "a", "Munich", "l", "0", "holds");
+        // Case insensitivity
+        yield return Test(
+            "fleet B-lon/C@0 H",
+            "fleet", "B", "lon", "C", "0", "H");
+        // All optionals missing
+        yield return Test(
+            "ROM h",
+            "", "", "ROM", "", "", "h");
+        // No confusion of unit type and timeline
+        yield return Test(
+            "A F-STP hold",
+            "A", "F", "STP", "", "", "hold");
+        // Province with space in name
+        yield return Test(
+            "Fleet North Sea Hold",
+            "Fleet", "", "North Sea", "", "", "Hold");
+        // Parenthesis location
+        yield return Test(
+            "F Spain(nc) holds",
+            "F", "", "Spain", "nc", "", "holds");
+    }
 
-        var match = re.Hold.Match("Germany Army a-Munich/l@0 holds");
-        Assert.That(match.Success, Is.True);
-        var hold = OrderRegex.ParseHold(match);
-        Assert.That(hold.power, Is.EqualTo("Germany"));
-        Assert.That(hold.type, Is.EqualTo("Army"));
-        Assert.That(hold.timeline, Is.EqualTo("a"));
-        Assert.That(hold.province, Is.EqualTo("Munich"));
-        Assert.That(hold.location, Is.EqualTo("l"));
-        Assert.That(hold.turn, Is.EqualTo("0"));
-        Assert.That(hold.verb, Is.EqualTo("holds"));
+    [TestCaseSource(nameof(HoldRegexMatchesTestCases))]
+    public void HoldRegexMatches(string order, string[] expected)
+    {
+        OrderRegex re = new(World.WithStandardMap());
+        var match = re.Hold.Match(order);
+        Assert.True(match.Success, "Match failed");
+        var (type, timeline, province, location, turn, holdVerb) = OrderRegex.ParseHold(match);
+        string[] actual = [type, timeline, province, location, turn, holdVerb];
+        // Use EquivalentTo for more detailed error message
+        Assert.That(actual, Is.EquivalentTo(expected), "Unexpected parse results");
+        Assert.That(actual, Is.EqualTo(expected), "Unexpected parse results");
+    }
 
-        match = re.Hold.Match("F Venice hold");
-        Assert.That(match.Success, Is.True);
-        hold = OrderRegex.ParseHold(match);
-        Assert.That(hold.power, Is.EqualTo(""));
-        Assert.That(hold.type, Is.EqualTo("F"));
-        Assert.That(hold.timeline, Is.EqualTo(""));
-        Assert.That(hold.province, Is.EqualTo("Venice"));
-        Assert.That(hold.location, Is.EqualTo(""));
-        Assert.That(hold.turn, Is.EqualTo(""));
-        Assert.That(hold.verb, Is.EqualTo("hold"));
+    static IEnumerable<TestCaseData> MoveRegexMatchesTestCases()
+    {
+        static TestCaseData Test(string order, params string[] expected)
+            => new TestCaseData(order, expected).SetName($"{{m}}(\"{order}\")");
+        // Full specification
+        yield return Test(
+            "Army a-Munich/l@0 - a-Tyrolia/l@0",
+            "Army", "a", "Munich", "l", "0", "-", "a", "Tyrolia", "l", "0", "");
+        // Case insensitivity
+        yield return Test(
+            "fleet B-lon/C@0 - B-enc/W@0",
+            "fleet", "B", "lon", "C", "0", "-", "B", "enc", "W", "0", "");
+        // All optionals missing
+        yield return Test(
+            "ROM - VIE",
+            "", "", "ROM", "", "", "-", "", "VIE", "", "", "");
+        // No confusion of unit type and timeline
+        yield return Test(
+            "A F-STP - MOS",
+            "A", "F", "STP", "", "", "-", "", "MOS", "", "", "");
+        // Elements with spaces
+        yield return Test(
+            "Fleet Western Mediterranean Sea moves to Gulf of Lyons via convoy",
+            "Fleet", "", "Western Mediterranean Sea", "", "", "moves to", "", "Gulf of Lyons", "", "", "via convoy");
+        // Parenthesis location
+        yield return Test(
+            "F Spain(nc) - Spain(sc)",
+            "F", "", "Spain", "nc", "", "-", "", "Spain", "sc", "", "");
+        // Timeline designation spells out a province
+        yield return Test(
+            "A tyr-MUN(vie) - mun-TYR/vie",
+            "A", "tyr", "MUN", "vie", "", "-", "mun", "TYR", "vie", "", "");
+    }
 
-        match = re.Move.Match("F Gascony - Spain(nc)");
-        Assert.That(match.Success, Is.True);
-        var move = OrderRegex.ParseMove(match);
-        Assert.That(move.power, Is.EqualTo(""));
-        Assert.That(move.type, Is.EqualTo("F"));
-        Assert.That(move.timeline, Is.EqualTo(""));
-        Assert.That(move.province, Is.EqualTo("Gascony"));
-        Assert.That(move.location, Is.EqualTo(""));
-        Assert.That(move.turn, Is.EqualTo(""));
-        Assert.That(move.verb, Is.EqualTo("-"));
-        Assert.That(move.timeline2, Is.EqualTo(""));
-        Assert.That(move.province2, Is.EqualTo("Spain"));
-        Assert.That(move.location2, Is.EqualTo("nc"));
-        Assert.That(move.turn2, Is.EqualTo(""));
-
-        match = re.Move.Match("F North Sea - Picardy");
-        Assert.That(match.Success, Is.True);
-        move = OrderRegex.ParseMove(match);
-        Assert.That(move.power, Is.EqualTo(""));
-        Assert.That(move.type, Is.EqualTo("F"));
-        Assert.That(move.timeline, Is.EqualTo(""));
-        Assert.That(move.province, Is.EqualTo("North Sea"));
-        Assert.That(move.location, Is.EqualTo(""));
-        Assert.That(move.turn, Is.EqualTo(""));
-        Assert.That(move.verb, Is.EqualTo("-"));
-        Assert.That(move.timeline2, Is.EqualTo(""));
-        Assert.That(move.province2, Is.EqualTo("Picardy"));
-        Assert.That(move.location2, Is.EqualTo(""));
-        Assert.That(move.turn2, Is.EqualTo(""));
+    [TestCaseSource(nameof(MoveRegexMatchesTestCases))]
+    public void MoveRegexMatches(string order, string[] expected)
+    {
+        OrderRegex re = new(World.WithStandardMap());
+        var match = re.Move.Match(order);
+        Assert.True(match.Success, "Match failed");
+        var (type, timeline, province, location, turn, moveVerb,
+            destTimeline, destProvince, destLocation, destTurn, viaConvoy) = OrderRegex.ParseMove(match);
+        string[] actual = [type, timeline, province, location, turn, moveVerb,
+            destTimeline, destProvince, destLocation, destTurn, viaConvoy];
+        // Use EquivalentTo for more detailed error message
+        Assert.That(actual, Is.EquivalentTo(expected), "Unexpected parse results");
+        Assert.That(actual, Is.EqualTo(expected), "Unexpected parse results");
     }
 }