perf(test): fold restart recovery helper into spawn utils suite

src/process/restart-recovery.test.ts

@@ -1,18 +0,0 @@
-import { describe, expect, it, vi } from "vitest";
-import { createRestartIterationHook } from "./restart-recovery.js";
-
-describe("restart-recovery", () => {
-  it("skips recovery on first iteration and runs on subsequent iterations", () => {
-    const onRestart = vi.fn();
-    const onIteration = createRestartIterationHook(onRestart);
-
-    expect(onIteration()).toBe(false);
-    expect(onRestart).not.toHaveBeenCalled();
-
-    expect(onIteration()).toBe(true);
-    expect(onRestart).toHaveBeenCalledTimes(1);
-
-    expect(onIteration()).toBe(true);
-    expect(onRestart).toHaveBeenCalledTimes(2);
-  });
-});

src/process/spawn-utils.test.ts

@@ -2,6 +2,7 @@ import type { ChildProcess } from "node:child_process";
 import { EventEmitter } from "node:events";
 import { PassThrough } from "node:stream";
 import { describe, expect, it, vi } from "vitest";
+import { createRestartIterationHook } from "./restart-recovery.js";
 import { spawnWithFallback } from "./spawn-utils.js";
 
 function createStubChild() {
@@ -61,3 +62,19 @@ describe("spawnWithFallback", () => {
     expect(spawnMock).toHaveBeenCalledTimes(1);
   });
 });
+
+describe("restart-recovery", () => {
+  it("skips recovery on first iteration and runs on subsequent iterations", () => {
+    const onRestart = vi.fn();
+    const onIteration = createRestartIterationHook(onRestart);
+
+    expect(onIteration()).toBe(false);
+    expect(onRestart).not.toHaveBeenCalled();
+
+    expect(onIteration()).toBe(true);
+    expect(onRestart).toHaveBeenCalledTimes(1);
+
+    expect(onIteration()).toBe(true);
+    expect(onRestart).toHaveBeenCalledTimes(2);
+  });
+});