Configuration hardening

internal/app/app_test.go

@@ -198,6 +198,80 @@ func TestRunBuildHAKsVerboseListsMappings(t *testing.T) {
 	}
 }
 
+func TestRunMusicScanUsesConfiguredDatasetsWithoutWriting(t *testing.T) {
+	root := t.TempDir()
+	mkdirAll(t, filepath.Join(root, "assets", "audio", "westgate"))
+	mkdirAll(t, filepath.Join(root, "build"))
+	writeFile(t, filepath.Join(root, "nwn-tool.yaml"), `
+module:
+  name: Test Module
+  resref: testmod
+paths:
+  assets: assets
+  build: build
+music:
+  datasets:
+    westgate_audio:
+      source: audio/westgate
+      output: generated/music
+      prefix: wg_
+`)
+	writeFile(t, filepath.Join(root, "assets", "audio", "westgate", "Theme Song.mp3"), "source-mp3")
+
+	var stdout bytes.Buffer
+	ctx := context{
+		stdout: &stdout,
+		stderr: &bytes.Buffer{},
+		cwd:    root,
+		args:   []string{"music", "scan", "--dataset", "westgate_audio"},
+	}
+
+	if err := runMusic(ctx); err != nil {
+		t.Fatalf("runMusic failed: %v", err)
+	}
+	output := stdout.String()
+	if !strings.Contains(output, "music scan") || !strings.Contains(output, "tracks: 1") {
+		t.Fatalf("unexpected music scan output: %q", output)
+	}
+	if _, err := os.Stat(filepath.Join(root, ".cache", "credits")); !os.IsNotExist(err) {
+		t.Fatalf("music scan should not write credits artifacts, stat err=%v", err)
+	}
+}
+
+func TestRunMusicListDatasets(t *testing.T) {
+	root := t.TempDir()
+	mkdirAll(t, filepath.Join(root, "assets"))
+	mkdirAll(t, filepath.Join(root, "build"))
+	writeFile(t, filepath.Join(root, "nwn-tool.yaml"), `
+module:
+  name: Test Module
+  resref: testmod
+paths:
+  assets: assets
+music:
+  datasets:
+    westgate_audio:
+      source: audio/westgate
+      output: generated/music
+      prefix: wg_
+`)
+
+	var stdout bytes.Buffer
+	ctx := context{
+		stdout: &stdout,
+		stderr: &bytes.Buffer{},
+		cwd:    root,
+		args:   []string{"music", "list-datasets"},
+	}
+
+	if err := runMusic(ctx); err != nil {
+		t.Fatalf("runMusic failed: %v", err)
+	}
+	if !strings.Contains(stdout.String(), "westgate_audio: source=audio/westgate output=generated/music prefix=wg_") {
+		t.Fatalf("unexpected dataset list: %q", stdout.String())
+	}
+}
+
 func TestRunConfigEffectiveJSONShowsDefaultsAndProvenance(t *testing.T) {
 	root := t.TempDir()
 	writeFile(t, filepath.Join(root, "nwn-tool.yaml"), `