M1/#293: cover LibraryConfig env + yaml

internal/config/config_test.go

@@ -94,3 +94,49 @@ func TestAdminBootstrapEnvOverrides(t *testing.T) {
 		t.Errorf("admin password = %q", cfg.Auth.AdminBootstrap.Password)
 	}
 }
+
+func TestLibraryEnvOverrides(t *testing.T) {
+	t.Setenv("SMARTMUSIC_LIBRARY_SCAN_PATHS", "/music:/other::/third")
+	t.Setenv("SMARTMUSIC_LIBRARY_SCAN_ON_STARTUP", "true")
+
+	cfg, err := Load("")
+	if err != nil {
+		t.Fatalf("Load: %v", err)
+	}
+	want := []string{"/music", "/other", "/third"}
+	if len(cfg.Library.ScanPaths) != len(want) {
+		t.Fatalf("scan_paths = %v, want %v", cfg.Library.ScanPaths, want)
+	}
+	for i, p := range want {
+		if cfg.Library.ScanPaths[i] != p {
+			t.Errorf("scan_paths[%d] = %q, want %q", i, cfg.Library.ScanPaths[i], p)
+		}
+	}
+	if !cfg.Library.ScanOnStartup {
+		t.Error("scan_on_startup = false, want true")
+	}
+}
+
+func TestLibraryYAMLLoads(t *testing.T) {
+	dir := t.TempDir()
+	path := filepath.Join(dir, "config.yaml")
+	content := []byte(`library:
+  scan_paths:
+    - /srv/music
+    - /mnt/archive
+  scan_on_startup: true
+`)
+	if err := os.WriteFile(path, content, 0o644); err != nil {
+		t.Fatal(err)
+	}
+	cfg, err := Load(path)
+	if err != nil {
+		t.Fatalf("Load: %v", err)
+	}
+	if len(cfg.Library.ScanPaths) != 2 || cfg.Library.ScanPaths[0] != "/srv/music" {
+		t.Errorf("scan_paths = %v", cfg.Library.ScanPaths)
+	}
+	if !cfg.Library.ScanOnStartup {
+		t.Error("scan_on_startup = false")
+	}
+}