fix(e2e): improve smoke test stability (#14672)

Author: sarayev

.github/actions/run-smoke-tests/action.yml

@@ -67,7 +67,17 @@ runs:
 
     - name: Run Smoke Tests
       shell: bash
-      run: yarn smoketest -- --forceExit --no-cache --maxWorkers=2
+      run: |
+        set +e
+        yarn smoketest -- --forceExit --no-cache --maxWorkers=2
+        EXIT_CODE=$?
+        if [ $EXIT_CODE -ne 0 ]; then
+          echo "::warning::Smoke tests failed on first attempt (exit code $EXIT_CODE). Retrying in 30s..."
+          sleep 30
+          yarn smoketest -- --forceExit --no-cache --maxWorkers=2
+          EXIT_CODE=$?
+        fi
+        exit $EXIT_CODE
       env:
         CLI_REGION: ${{ inputs.region }}
         CI: true

packages/amplify-e2e-tests/src/__tests__/smoke-tests/smoketest-amplify-app.test.ts

@@ -12,6 +12,8 @@ import {
 } from '../../amplify-app-helpers/amplify-app-validation';
 import execa from 'execa';
 
+jest.retryTimes(1);
+
 describe('amplify-app platform tests', () => {
   let projRoot: string;
 

packages/amplify-e2e-tests/src/__tests__/smoke-tests/smoketest-ios.test.ts

@@ -10,6 +10,8 @@ import {
 import * as fs from 'fs/promises';
 import * as path from 'path';
 
+jest.retryTimes(1);
+
 describe('Smoke Test - iOS', () => {
   if (process.platform == 'darwin') {
     let projRoot: string;

packages/amplify-e2e-tests/src/__tests__/smoke-tests/smoketest.test.ts

@@ -3,7 +3,7 @@ import * as path from 'path';
 import * as fs from 'fs-extra';
 import * as os from 'os';
 import { getCLIPath, initJSProjectWithProfile, nspawn as spawn } from '@aws-amplify/amplify-e2e-core';
-jest.retryTimes(0);
+jest.retryTimes(1);
 
 export type SmoketestArgs = {
   projectDirectory: string;