feat(workspace): add localStorage helper for split-view layout state

2026-08-14 11:25:37 +07:00
parent fa416b5e6b
commit 18a1ecb6f9
2 changed files with 92 additions and 0 deletions
@@ -0,0 +1,38 @@
+import { describe, it, expect, beforeEach } from "vitest";
+import {
+  readSplitViewState,
+  writeSplitViewState,
+  defaultSplitViewState,
+} from "../splitViewStorage";
+
+describe("splitViewStorage", () => {
+  beforeEach(() => {
+    localStorage.clear();
+  });
+
+  it("returns the default state when nothing is stored", () => {
+    expect(readSplitViewState()).toEqual(defaultSplitViewState());
+  });
+
+  it("defaults to a single unselected pane", () => {
+    expect(defaultSplitViewState()).toEqual({ layout: 1, paneLaneIds: [null] });
+  });
+
+  it("round-trips a written state", () => {
+    writeSplitViewState({ layout: 4, paneLaneIds: [1, 2, null, null] });
+    expect(readSplitViewState()).toEqual({ layout: 4, paneLaneIds: [1, 2, null, null] });
+  });
+
+  it("falls back to the default when stored JSON is malformed", () => {
+    localStorage.setItem("ccam.workspace.splitView", "{not json");
+    expect(readSplitViewState()).toEqual(defaultSplitViewState());
+  });
+
+  it("falls back to the default when the stored layout is not 1, 2, or 4", () => {
+    localStorage.setItem(
+      "ccam.workspace.splitView",
+      JSON.stringify({ layout: 3, paneLaneIds: [] })
+    );
+    expect(readSplitViewState()).toEqual(defaultSplitViewState());
+  });
+});