add shel

tests/HSchool.Content.Tests/PeopleDefTests.cs

@@ -23,6 +23,9 @@ public class PeopleDefTests
         Assert.Equal("Славянский", catalog.Label("ru", catalog.NameSets["Slavic"]));
         Assert.Equal("Slavic", catalog.Label("en", catalog.NameSets["Slavic"]));
         Assert.Equal("Усидчивый", catalog.Label("ru", catalog.Traits["Diligent"]));
+        Assert.True(catalog.Subjects.ContainsKey("PrimarySchool"));
+        Assert.Equal("Начальные классы", catalog.Label("ru", catalog.Subjects["PrimarySchool"]));
+        Assert.Equal("Primary", catalog.Label("en", catalog.Subjects["PrimarySchool"]));
     }
 
     [Fact]
@@ -147,6 +150,30 @@ public class PeopleDefTests
         Assert.Contains("Ghost", ex.Message);
     }
 
+    [Fact]
+    public void Subject_UnknownSkill_FailsTheCatalog()
+    {
+        var ex = Assert.Throws<ContentLoadException>(() => _loader.Load(
+            [CatalogLoader.CorePackId],
+            [
+                PackDocuments.Def(CatalogLoader.CorePackId, "skills", "math", """{ "defName": "Mathematics" }"""),
+                PackDocuments.Def(
+                    CatalogLoader.CorePackId,
+                    "subjects",
+                    "ghost",
+                    """
+                    {
+                      "defName": "GhostSubject",
+                      "grades": { "min": 1, "max": 4 },
+                      "hoursPerWeek": 2,
+                      "skills": [{ "skill": "Missing", "share": 1 }]
+                    }
+                    """),
+            ]));
+
+        Assert.Contains("Missing", ex.Message);
+    }
+
     [Fact]
     public void OneWayIncompatibility_IsMutual()
     {