From 9b1ebc1d7ad00c3c85dd4893434d3992674d1a26 Mon Sep 17 00:00:00 2001
From: Fusion <noreply@runfusion.ai>
Date: Wed, 13 May 2026 05:09:27 -0700
Subject: [PATCH] =?UTF-8?q?feat(FN-4298):=20complete=20Step=201=20?=
 =?UTF-8?q?=E2=80=94=20add=20default=20worktree=20liveness=20helper=20mock?=
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Fusion-Task-Id: FN-4298
Fusion-Task-Lineage: 25d48169-58be-42f9-aafc-4b47db554e57
---
 packages/engine/src/__tests__/executor-test-helpers.ts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/packages/engine/src/__tests__/executor-test-helpers.ts b/packages/engine/src/__tests__/executor-test-helpers.ts
index 347c55998..dc7cb96fa 100644
--- a/packages/engine/src/__tests__/executor-test-helpers.ts
+++ b/packages/engine/src/__tests__/executor-test-helpers.ts
@@ -106,6 +106,13 @@ vi.mock("../worktree-names.js", async () => {
     generateWorktreeName: vi.fn().mockReturnValue("swift-falcon"),
   };
 });
+vi.mock("../worktree-pool.js", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("../worktree-pool.js")>();
+  return {
+    ...actual,
+    isUsableTaskWorktree: vi.fn().mockResolvedValue(true),
+  };
+});
 
 vi.mock("node:child_process", async () => {
   const { promisify } = await import("node:util");
@@ -230,6 +237,7 @@ import { withRateLimitRetry } from "../rate-limit-retry.js";
 import { execSync } from "node:child_process";
 import { existsSync, realpathSync } from "node:fs";
 import { hydrateWorktreeDb } from "../worktree-db-hydrate.js";
+import { isUsableTaskWorktree } from "../worktree-pool.js";
 
 export const mockedCreateFnAgent = vi.mocked(createFnAgent);
 export const mockedSessionManager = vi.mocked(SessionManager);
@@ -241,6 +249,7 @@ export const mockedExecSync = vi.mocked(execSync);
 export const mockedExistsSync = vi.mocked(existsSync);
 export const mockedRealpathSync = vi.mocked(realpathSync);
 export const mockedHydrateWorktreeDb = vi.mocked(hydrateWorktreeDb);
+export const mockedIsUsableTaskWorktree = vi.mocked(isUsableTaskWorktree);
 
 export type EventListener = (...args: unknown[]) => void;