Sorting changes

internal/project/project_test.go

@@ -885,7 +885,7 @@ func TestValidateLayoutAcceptsGeneratedTopData2DAConfig(t *testing.T) {
 							PartsRows: PartsRowsConfig{
 								RowDefaults: map[string]string{"COSTMODIFIER": "0"},
 								ACBonus: PartsRowsACBonusConfig{
-									Default: PartsRowsACBonusPolicy{Strategy: "descending_row_id_sort_key", MaxRowID: 999, Divisor: 100, Format: "%.2f"},
+									Default: PartsRowsACBonusPolicy{Strategy: "ascending_row_id_sort_key", Divisor: 100, Format: "%.2f"},
 									Datasets: map[string]PartsRowsACBonusPolicy{
 										"chest": {Strategy: "fixed", Value: "0.00"},
 									},
@@ -907,6 +907,44 @@ func TestValidateLayoutAcceptsGeneratedTopData2DAConfig(t *testing.T) {
 	}
 }
 
+func TestValidateLayoutAcceptsGeneratedPartsRowsNullUndiscoveredWithoutACBonusPolicy(t *testing.T) {
+	root := t.TempDir()
+	mkdirAll(t, filepath.Join(root, "assets"))
+	mkdirAll(t, filepath.Join(root, "build"))
+	proj := Project{
+		Root: root,
+		Config: Config{
+			Module: ModuleConfig{Name: "Test", ResRef: "testmod"},
+			Paths:  PathConfig{Assets: "assets"},
+			Generated: GeneratedConfig{
+				TopData2DA: []GeneratedTopData2DAConfig{
+					{
+						ID:              "parts",
+						Source:          "topdata",
+						Output:          "{paths.cache}/generated-assets/parts-2da",
+						IncludeDatasets: []string{"parts/**"},
+						PackageRoot:     "part",
+						Autogen: AutogenConsumerConfig{
+							ID:      "parts",
+							Mode:    "parts_rows",
+							Root:    "part",
+							Include: []string{"**/*.mdl"},
+							Derive:  AutogenDeriveConfig{Kind: "trailing_numeric_suffix", GroupFrom: "first_path_segment"},
+							PartsRows: PartsRowsConfig{
+								NullUndiscoveredRows: true,
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+
+	if err := proj.ValidateLayout(); err != nil {
+		t.Fatalf("ValidateLayout returned error: %v", err)
+	}
+}
+
 func TestValidateLayoutRejectsEscapingGeneratedTopData2DAConfig(t *testing.T) {
 	root := t.TempDir()
 	mkdirAll(t, filepath.Join(root, "assets"))