test(maintenance): migrate testing utils to vitest (aws-powertools#2940)

Author: dreamorosi

packages/testing/jest.config.cjs

@@ -8,9 +8,8 @@
   },
   "private": true,
   "scripts": {
-    "test": "npm run test:unit",
-    "test:unit": "jest --group=unit --detectOpenHandles --verbose",
-    "jest": "jest --detectOpenHandles --verbose",
+    "test": "vitest --run",
+    "test:unit": "vitest --run",
     "test:e2e": "echo 'Not implemented'",
     "watch": "jest --watch",
     "build:cjs": "tsc --build tsconfig.json && echo '{ \"type\": \"commonjs\" }' > lib/cjs/package.json",
@@ -97,4 +96,4 @@
     "aws-cdk-lib": "^2.152.0",
     "esbuild": "^0.23.0"
   }
-}
+}

packages/testing/package.json

@@ -1,9 +1,4 @@
-/**
- * Test InvocationLogs class
- *
- * @group unit/commons/invocationLogs
- *
- */
+import { beforeEach, describe, expect, it } from 'vitest';
 import { TestInvocationLogs } from '../../src/TestInvocationLogs.js';
 
 const exampleLogs = `START RequestId: c6af9ac6-7b61-11e6-9a41-93e812345678 Version: $LATEST
@@ -15,7 +10,7 @@ END RequestId: c6af9ac6-7b61-11e6-9a41-93e812345678
 REPORT RequestId: c6af9ac6-7b61-11e6-9a41-93e812345678\tDuration: 2.16 ms\tBilled Duration: 3 ms\tMemory Size: 128 MB\tMax Memory Used: 57 MB\t`;
 
 describe('Constructor', () => {
-  test('it should parse base64 text correctly', () => {
+  it('parses base64 text correctly', () => {
     const invocationLogs = new TestInvocationLogs(
       Buffer.from(exampleLogs).toString('base64')
     );
@@ -33,29 +28,29 @@ describe('doesAnyFunctionLogsContains()', () => {
       Buffer.from(exampleLogs).toString('base64')
     );
   });
-  test('it should return true if the text appear in any logs', () => {
+  it('returns true if the text appear in any of the logs', () => {
     const phraseInMessage = 'This is';
     expect(invocationLogs.doesAnyFunctionLogsContains(phraseInMessage)).toBe(
       true
     );
   });
-  test('it should return false if the text does not appear in any logs', () => {
+  it('returns false if the text does not appear anywhere', () => {
     const phraseNotInMessage = 'A quick brown fox jumps over the lazy dog';
     expect(invocationLogs.doesAnyFunctionLogsContains(phraseNotInMessage)).toBe(
       false
     );
   });
 
-  test('it should return true for key in the log', () => {
+  it('returns true if the provided key appears in any of the logs', () => {
     const keyInLog = 'error';
     expect(invocationLogs.doesAnyFunctionLogsContains(keyInLog)).toBe(true);
   });
 
-  test('it should return true for a text in an error key', () => {
+  it('returns true it the provided text appears in an error key within the logs', () => {
     const textInError = '/var/task/index.js:2778';
     expect(invocationLogs.doesAnyFunctionLogsContains(textInError)).toBe(true);
   });
-  test('it should return false for the text that appears only on the ', () => {
+  it('excludes the report logs from the search', () => {
     const textInStartLine = 'Version: $LATEST';
     const textInEndLine = 'END RequestId';
     const textInReportLine = 'Billed Duration';
@@ -70,7 +65,7 @@ describe('doesAnyFunctionLogsContains()', () => {
     );
   });
 
-  test('it should apply filter log based on the given level', () => {
+  it('filters log based on the given level', () => {
     const debugLogHasWordINFO = invocationLogs.doesAnyFunctionLogsContains(
       'INFO',
       'DEBUG'
@@ -100,7 +95,7 @@ describe('getFunctionLogs()', () => {
     );
   });
 
-  test('it should retrive logs of the given level only', () => {
+  it('retrives logs of the given level only', () => {
     const infoLogs = invocationLogs.getFunctionLogs('INFO');
     expect(infoLogs.length).toBe(2);
     expect(infoLogs[0].includes('INFO')).toBe(true);
@@ -114,7 +109,7 @@ describe('getFunctionLogs()', () => {
     expect(errorLogs[0].includes('ERROR')).toBe(true);
   });
 
-  test('it should NOT return logs generated by Lambda service (e.g. START, END, and REPORT)', () => {
+  it("doesn't return logs generated by Lambda service (e.g. START, END, and REPORT)", () => {
     const errorLogs = invocationLogs.getFunctionLogs('ERROR');
     expect(errorLogs.length).toBe(1);
     expect(errorLogs[0].includes('START')).toBe(false);
@@ -124,7 +119,7 @@ describe('getFunctionLogs()', () => {
 });
 
 describe('parseFunctionLog()', () => {
-  test('it should return object with the correct values based on the given log', () => {
+  it('returns an object with the correct values based on the given log', () => {
     const rawLogStr =
       '{"cold_start":true,"function_arn":"arn:aws:lambda:eu-west-1:561912387782:function:loggerMiddyStandardFeatures-c555a2ec-1121-4586-9c04-185ab36ea34c","function_memory_size":128,"function_name":"loggerMiddyStandardFeatures-c555a2ec-1121-4586-9c04-185ab36ea34c","function_request_id":"7f586697-238a-4c3b-9250-a5f057c1119c","level":"DEBUG","message":"This is a DEBUG log but contains the word INFO some context and persistent key","service":"logger-e2e-testing","timestamp":"2022-01-27T16:04:39.323Z","persistentKey":"works"}';
 
@@ -146,7 +141,7 @@ describe('parseFunctionLog()', () => {
     });
   });
 
-  test('it should throw an error if receive incorrect formatted raw log string', () => {
+  it('throws an error if receive incorrect formatted raw log string', () => {
     const notJSONstring = 'not-json-string';
     expect(() => {
       TestInvocationLogs.parseFunctionLog(notJSONstring);

packages/testing/tests/helpers/populateEnvironmentVariables.ts

@@ -0,0 +1,10 @@
+import { defineProject } from 'vitest/config';
+
+export default defineProject({
+  resolve: {
+    conditions: ['source'],
+  },
+  test: {
+    environment: 'node',
+  },
+});