migrate jest to vitest

Author: npalm

lambdas/functions/ami-housekeeper/aws-vitest-setup.ts renamed to lambdas/aws-vitest-setup.ts

@@ -7,7 +7,7 @@
     "start": "ts-node-dev src/local.ts",
     "test": "NODE_ENV=test nx test",
     "test:watch": "NODE_ENV=test nx test --watch",
-    "lint": "yarn eslint src",
+    "lint": "eslint src",
     "watch": "ts-node-dev --respawn --exit-child src/local.ts",
     "build": "ncc build src/lambda.ts -o dist",
     "dist": "yarn build && cd dist && zip ../ami-housekeeper.zip index.js",
@@ -16,23 +16,12 @@
     "all": "yarn build && yarn format && yarn lint && yarn test"
   },
   "devDependencies": {
-    "@trivago/prettier-plugin-sort-imports": "^5.2.2",
     "@types/aws-lambda": "^8.10.146",
-    "@types/jest": "^29.5.14",
-    "@types/node": "^22.13.9",
-    "@typescript-eslint/eslint-plugin": "^8.25.0",
-    "@typescript-eslint/parser": "^8.25.0",
     "@vercel/ncc": "^0.38.3",
     "aws-sdk-client-mock": "^4.1.0",
     "aws-sdk-client-mock-jest": "^4.1.0",
     "eslint": "^8.57.0",
     "eslint-plugin-prettier": "5.2.3",
-    "jest": "^29.7.0",
-    "jest-mock": "^29.7.0",
-    "jest-mock-extended": "^3.0.7",
-    "nock": "^14.0.1",
-    "prettier": "3.4.2",
-    "ts-jest": "^29.2.5",
     "ts-node": "^10.9.2",
     "ts-node-dev": "^2.0.0"
   },
@@ -42,8 +31,7 @@
     "@aws-sdk/client-ec2": "^3.764.0",
     "@aws-sdk/client-ssm": "^3.759.0",
     "@aws-sdk/types": "^3.734.0",
-    "cron-parser": "^4.9.0",
-    "typescript": "^5.7.3"
+    "cron-parser": "^4.9.0"
   },
   "nx": {
     "includedScripts": [

lambdas/functions/ami-housekeeper/convert-to-vitest.js

@@ -14,11 +14,11 @@ import {
   SSMClient,
 } from '@aws-sdk/client-ssm';
 import { mockClient } from 'aws-sdk-client-mock';
+import 'aws-sdk-client-mock-jest/vitest';
 
 import { AmiCleanupOptions, amiCleanup, defaultAmiCleanupOptions } from './ami';
 import { describe, it, expect, beforeEach, vi } from 'vitest';
 
-
 process.env.AWS_REGION = 'eu-east-1';
 const deleteAmisOlderThenDays = 30;
 const date31DaysAgo = new Date(new Date().setDate(new Date().getDate() - (deleteAmisOlderThenDays + 1)));

lambdas/functions/ami-housekeeper/jest.config.ts

@@ -1,11 +1,9 @@
 import { logger } from '@aws-github-runner/aws-powertools-util';
 import { Context } from 'aws-lambda';
 
-
 import { AmiCleanupOptions, amiCleanup } from './ami';
 import { handler } from './lambda';
-import { describe, it, expect, beforeEach, beforeAll, vi } from 'vitest';
-
+import { describe, it, expect, beforeAll, vi } from 'vitest';
 
 vi.mock('./ami');
 vi.mock('@aws-github-runner/aws-powertools-util');
@@ -41,7 +39,6 @@ const context: Context = {
   },
 };
 
-// Docs for testing async with jest: https://jestjs.io/docs/tutorial-async
 describe('Housekeeper ami', () => {
   beforeAll(() => {
     vi.resetAllMocks();

lambdas/functions/ami-housekeeper/package.json

@@ -2,5 +2,8 @@
   "extends" : "../../tsconfig.json",
   "include": [
     "src/**/*"
+  ],
+  "exclude": [
+    "src/**/*.test.ts"
   ]
 }

lambdas/functions/ami-housekeeper/src/ami.test.ts

@@ -3,7 +3,7 @@ import defaultConfig from '../../vitest.base.config';
 
 export default mergeConfig(defaultConfig, {
   test: {
-    setupFiles: ['./aws-vitest-setup.ts'],
+    setupFiles: ['../../aws-vitest-setup.ts'],
     coverage: {
       include: ['src/**/*.ts'],
       exclude: ['src/**/*.test.ts', 'src/**/*.d.ts'],
@@ -12,7 +12,7 @@ export default mergeConfig(defaultConfig, {
         branches: 100,
         functions: 100,
         lines: 100,
-      }
+      },
     },
   },
 });

lambdas/functions/ami-housekeeper/src/lambda.test.ts

@@ -7,7 +7,7 @@
     "start": "ts-node-dev src/local.ts",
     "test": "NODE_ENV=test nx test",
     "test:watch": "NODE_ENV=test nx test --watch",
-    "lint": "yarn eslint src",
+    "lint": "eslint src",
     "watch": "ts-node-dev --respawn --exit-child --files src/local-down.ts",
     "build": "ncc build src/lambda.ts -o dist",
     "dist": "yarn build && cd dist && zip ../runners.zip index.js",
@@ -16,24 +16,12 @@
     "all": "yarn build && yarn format && yarn lint && yarn test"
   },
   "devDependencies": {
-    "@trivago/prettier-plugin-sort-imports": "^5.2.2",
     "@types/aws-lambda": "^8.10.146",
-    "@types/jest": "^29.5.14",
-    "@types/node": "^22.13.9",
-    "@typescript-eslint/eslint-plugin": "^8.25.0",
-    "@typescript-eslint/parser": "^8.25.0",
     "@vercel/ncc": "^0.38.3",
     "aws-sdk-client-mock": "^4.1.0",
     "aws-sdk-client-mock-jest": "^4.1.0",
-    "eslint": "^8.57.0",
-    "eslint-plugin-prettier": "5.2.3",
-    "jest": "^29.7.0",
-    "jest-mock": "^29.7.0",
-    "jest-mock-extended": "^3.0.7",
     "moment-timezone": "^0.5.47",
     "nock": "^14.0.1",
-    "prettier": "3.4.2",
-    "ts-jest": "^29.2.5",
     "ts-node": "^10.9.2",
     "ts-node-dev": "^2.0.0"
   },
@@ -50,8 +38,7 @@
     "@octokit/plugin-throttling": "8.2.0",
     "@octokit/rest": "20.1.2",
     "@octokit/types": "^13.8.0",
-    "cron-parser": "^4.9.0",
-    "typescript": "^5.7.3"
+    "cron-parser": "^4.9.0"
   },
   "nx": {
     "includedScripts": [