feat(tmux-monitor): add a unified multi-host view (#1520)

plugins/tmux-monitor/tests/frontend/monitor-storage.test.ts

@@ -0,0 +1,32 @@
+import { beforeEach, describe, expect, it } from "vitest";
+import {
+  readExpanded,
+  readSelectedPane,
+  readMonitorValue,
+  saveMonitorValue,
+} from "../../src/frontend/monitor-storage";
+
+beforeEach(() => localStorage.clear());
+describe("per-host monitor preferences", () => {
+  it("keeps identically named sessions and panes separate by host", () => {
+    saveMonitorValue("expanded-1", ["same"]);
+    saveMonitorValue("expanded-2", []);
+    saveMonitorValue("pane-1", {
+      paneId: "%0",
+      sessionName: "same",
+      windowIndex: 0,
+    });
+    expect(readExpanded(1)).toEqual(new Set(["same"]));
+    expect(readExpanded(2)).toEqual(new Set());
+    expect(readSelectedPane(1)?.paneId).toBe("%0");
+    expect(readSelectedPane(2)).toBeNull();
+  });
+  it("tolerates invalid or obsolete stored values", () => {
+    localStorage.setItem("termix-tmux-monitor-filter", "{broken");
+    expect(readMonitorValue("filter", "")).toBe("");
+    saveMonitorValue("pane-1", { paneId: "%0", windowIndex: "0" });
+    expect(readSelectedPane(1)).toBeNull();
+    saveMonitorValue("expanded-1", ["same", null, 3]);
+    expect(readExpanded(1)).toEqual(new Set(["same"]));
+  });
+});