fix: stabilize jest plugin integration tests

Author: V3RON

packages/jest/src/__tests__/harness.test.ts

@@ -481,6 +481,7 @@ describe('restart(testFilePath)', () => {
     const platformInstance = createPlatformRunner({
       restartApp,
       stopApp,
+      isAppRunning: vi.fn(async () => false),
       createAppMonitor: () => appMonitor.appMonitor,
     });
 
@@ -528,17 +529,17 @@ describe('restart(testFilePath)', () => {
     await flush();
 
     expect(stopApp).toHaveBeenCalledTimes(1);
-    expect(restartApp).toHaveBeenCalledTimes(1);
-    expect(restartApp).toHaveBeenNthCalledWith(1, {
-      extras: {
-        source: 'restart',
-      },
-    });
+    expect(restartApp).toHaveBeenCalledTimes(0);
 
     await vi.advanceTimersByTimeAsync(1_000);
     await flush();
 
     expect(restartApp).toHaveBeenCalledTimes(2);
+    expect(restartApp).toHaveBeenNthCalledWith(1, {
+      extras: {
+        source: 'restart',
+      },
+    });
     expect(restartApp).toHaveBeenNthCalledWith(2, {
       extras: {
         source: 'restart',

packages/jest/src/__tests__/index.test.ts

@@ -14,6 +14,9 @@ describe('JestHarness', () => {
       ensureAppReady: vi
         .fn()
         .mockRejectedValue(new StartupStallError(1500, 3)),
+      callHook: vi.fn(async () => undefined),
+      setRunState: vi.fn(),
+      getRunState: vi.fn(() => null),
       crashSupervisor: {
         beginTestRun: vi.fn(),
         waitForCrash: vi.fn(),

packages/jest/src/harness.ts

@@ -236,7 +236,7 @@ const getHarnessInternal = async (
   maybeLogMetroCacheReuse(config, platform, projectRoot);
   const pluginAbortController = new AbortController();
   const pluginManager = createHarnessPluginManager<HarnessConfig, HarnessPlatform>({
-    plugins: config.plugins as Array<
+    plugins: (config.plugins ?? []) as Array<
       HarnessPlugin<object, HarnessConfig, HarnessPlatform>
     >,
     projectRoot,

packages/jest/src/index.ts

@@ -114,8 +114,9 @@ export default class JestHarness implements CallbackTestRunnerInterface {
     const startTime = Date.now();
     const runId = randomUUID();
     const watchMode = this.#globalConfig.watch || this.#globalConfig.watchAll;
+    const rootDir = this.#globalConfig.rootDir ?? process.cwd();
     const testFiles = tests.map((test) =>
-      path.relative(this.#globalConfig.rootDir, test.path)
+      path.relative(rootDir, test.path)
     );
     const summary = createRunSummary();
     const updateRunState = (overrides: Partial<HarnessRunState> = {}) => {
@@ -157,7 +158,7 @@ export default class JestHarness implements CallbackTestRunnerInterface {
             return promise
               .then(async () => {
                 const relativeTestPath = path.relative(
-                  this.#globalConfig.rootDir,
+                  rootDir,
                   test.path
                 );
                 const testFileStartedAt = Date.now();