Initial Commit

packages/media/audio/audio-timeline/src/engine/undo/undo.test.ts

@@ -0,0 +1,65 @@
+import { describe, expect, it } from "@suaveplan/testing/runner";
+import { findChangedTrackIds } from "./undo.js";
+
+describe("findChangedTrackIds", () => {
+    it("returns empty when tracks are identical", () => {
+        const t = {
+            id: "t1",
+            name: "A",
+            clips: [],
+            volume: 1,
+            pan: 0,
+            muted: false,
+            soloed: false,
+        };
+        expect(findChangedTrackIds([t], [{ ...t }])).toEqual([]);
+    });
+
+    it("detects removed tracks", () => {
+        const t = {
+            id: "t1",
+            name: "A",
+            clips: [],
+            volume: 1,
+            pan: 0,
+            muted: false,
+            soloed: false,
+        };
+        expect(findChangedTrackIds([t], [])).toEqual(["t1"]);
+    });
+
+    it("detects added tracks", () => {
+        const t = {
+            id: "t1",
+            name: "A",
+            clips: [],
+            volume: 1,
+            pan: 0,
+            muted: false,
+            soloed: false,
+        };
+        expect(findChangedTrackIds([], [t])).toEqual(["t1"]);
+    });
+
+    it("detects changed tracks", () => {
+        const a = {
+            id: "t1",
+            name: "A",
+            clips: [],
+            volume: 1,
+            pan: 0,
+            muted: false,
+            soloed: false,
+        };
+        const b = {
+            id: "t1",
+            name: "B",
+            clips: [],
+            volume: 1,
+            pan: 0,
+            muted: false,
+            soloed: false,
+        };
+        expect(findChangedTrackIds([a], [b])).toEqual(["t1"]);
+    });
+});