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

plugins/tmux-monitor/tests/frontend/session-tree-selection.test.tsx

@@ -0,0 +1,50 @@
+import { afterEach, expect, it, vi } from "vitest";
+import { cleanup, fireEvent, render, screen } from "@testing-library/react";
+import { SessionTree } from "../../src/frontend/SessionTree";
+vi.mock("@termix/plugin-sdk/frontend", async (original) => ({
+  ...(await original<object>()),
+  useTranslation: () => ({ t: (key: string) => key }),
+}));
+afterEach(cleanup);
+it("selects a session by its label while the chevron only changes expansion", () => {
+  const select = vi.fn();
+  const toggle = vi.fn();
+  const noop = () => {};
+  render(
+    <SessionTree
+      sessions={[
+        {
+          name: "same",
+          created: 1,
+          lastActivity: 1,
+          attachedClients: 0,
+          windows: [],
+          tags: [],
+        },
+      ]}
+      expandedSessions={new Set()}
+      onToggleSession={toggle}
+      selectedPaneId={null}
+      onSelectPane={noop}
+      metricsByPane={new Map()}
+      metricsBySession={new Map()}
+      onSelectSession={select}
+      onEditTags={noop}
+      onAttachSession={noop}
+      onNewWindow={noop}
+      onRenameSession={noop}
+      onKillSession={noop}
+      onKillPane={noop}
+      onSplitPane={noop}
+      onKillWindow={noop}
+      compact={false}
+      now={1}
+    />,
+  );
+  fireEvent.click(screen.getByText("same"));
+  expect(select).toHaveBeenCalledExactlyOnceWith("same");
+  expect(toggle).not.toHaveBeenCalled();
+  fireEvent.click(screen.getByLabelText("tmuxMonitor.toggleSession"));
+  expect(toggle).toHaveBeenCalledExactlyOnceWith("same");
+  expect(select).toHaveBeenCalledOnce();
+});