Stats: stat sheets, formulas, archetypes, traits, stat pools, actions, conditions and sheet panel

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/StatLeafParserTests.cs

@@ -0,0 +1,63 @@
+namespace Cthangover.Mods.Stats.Tests
+{
+    using Cthangover.Core.Mods.Testing;
+    using Cthangover.Core.Scenes;
+
+
+    /// <summary>
+    /// The stats join the shared condition language: the forms authors write parse into
+    /// stats conditions, mix with flags and logic, and broken forms are syntax errors.
+    /// </summary>
+    public class StatLeafParserTests
+    {
+        [ModTest("conditions/forms_parse_into_stat_conditions")]
+        static void FormsParse(ModTestContext ctx)
+        {
+            var two = ConditionParser.Parse("stat(rpg_hero, str) >= 5") as StatCompareCondition;
+            ModAssert.NotNull(two, "stat(who, stat)");
+            ModAssert.Equal("rpg_hero", two.Who, "who");
+            ModAssert.Equal("str", two.Stat, "stat");
+            ModAssert.Equal(">=", two.Op, "op");
+            ModAssert.Equal(5, two.Value, "value");
+
+            var one = ConditionParser.Parse("stat(cha) < 3") as StatCompareCondition;
+            ModAssert.NotNull(one, "stat(stat)");
+            ModAssert.Null(one.Who, "the player");
+
+            var quoted = ConditionParser.Parse("stat('village/slime', atk) == 2") as StatCompareCondition;
+            ModAssert.Equal("village/slime", quoted?.Who, "quoted id with a slash");
+
+            var level = ConditionParser.Parse("level() > 1") as StatCompareCondition;
+            ModAssert.NotNull(level, "level()");
+            ModAssert.Null(level.Stat, "level compares no stat");
+
+            var archetype = ConditionParser.Parse("archetype(rpg_hero, mage)") as ArchetypeCondition;
+            ModAssert.Equal("mage", archetype?.Archetype, "archetype(who, id)");
+        }
+
+        [ModTest("conditions/mix_with_flags_and_logic")]
+        static void MixWithFlags(ModTestContext ctx)
+        {
+            var node = ConditionParser.Parse("door == \"open\" && (stat(str) >= 10 || !archetype(rogue))");
+            ModAssert.NotNull(node, "parsed");
+        }
+
+        [ModTest("conditions/broken_forms_are_errors")]
+        static void BrokenForms(ModTestContext ctx)
+        {
+            foreach (var broken in new[] { "stat(a, b, c) > 1", "stat(str)", "level(a, b) > 1", "stat(str) >= x", "archetype()" })
+            {
+                var threw = false;
+                try
+                {
+                    ConditionParser.Parse(broken);
+                }
+                catch (System.FormatException)
+                {
+                    threw = true;
+                }
+                ModAssert.True(threw, $"'{broken}' is a syntax error");
+            }
+        }
+    }
+}