test(maintenance): switch tracer to vitest

.github/workflows/reusable-run-linting-check-and-unit-tests.yml

@@ -47,6 +47,7 @@ jobs:
           "packages/idempotency",
           "packages/jmespath",
           "packages/logger",
+          "packages/tracer",
         ]
       fail-fast: false
     steps:
@@ -89,14 +90,12 @@ jobs:
           nodeVersion: ${{ matrix.version }}
       - name: Run linting
         run: |
-          npm run lint -w -w packages/tracer \
-            -w packages/metrics \
+          npm run lint -w packages/metrics \
             -w packages/parameters \
             -w packages/parser
       - name: Run unit tests
         run: |
-          npm t -w packages/tracer \
-            -w packages/metrics \
+          npm t -w packages/metrics \
             -w packages/parameters \
             -w packages/parser
   check-examples:

.husky/pre-push

@@ -1,6 +1,5 @@
 npm t \
   -w packages/metrics \
-  -w packages/tracer \
   -w packages/parameters \
   -w packages/parser
 

packages/logger/tests/unit/initializeLogger.test.ts

@@ -152,7 +152,7 @@ describe('Log levels', () => {
           level: 'INFO',
           message: 'Hello, world!',
           sampling_rate: 0,
-          service: 'service_undefined',
+          service: 'hello-world',
           timestamp: '2016-06-20T12:08:10.000Z',
           xray_trace_id: '1-abcdef12-3456abcdef123456abcdef12',
         },

packages/testing/src/setupEnv.ts

@@ -123,3 +123,5 @@ if (
   process.env.AWS_REGION = 'eu-west-1';
 }
 process.env._HANDLER = 'index.handler';
+process.env.POWERTOOLS_SERVICE_NAME = 'hello-world';
+process.env.AWS_XRAY_LOGGING_LEVEL = 'silent';

packages/tracer/package.json

@@ -10,13 +10,14 @@
     "access": "public"
   },
   "scripts": {
-    "test": "npm run test:unit",
-    "test:unit": "jest --group=unit --detectOpenHandles --coverage --verbose",
-    "jest": "jest --detectOpenHandles --verbose",
-    "test:e2e:nodejs18x": "RUNTIME=nodejs18x jest --group=e2e",
-    "test:e2e:nodejs20x": "RUNTIME=nodejs20x jest --group=e2e",
-    "test:e2e": "jest --group=e2e",
-    "watch": "jest --watch",
+    "test": "vitest --run tests/unit",
+    "test:unit": "vitest --run tests/unit",
+    "test:unit:coverage": "vitest --run tests/unit --coverage.enabled --coverage.thresholds.100 --coverage.include='src/**'",
+    "test:unit:types": "echo 'Not Implemented'",
+    "test:unit:watch": "vitest tests/unit",
+    "test:e2e:nodejs18x": "RUNTIME=nodejs18x vitest --run tests/e2e",
+    "test:e2e:nodejs20x": "RUNTIME=nodejs20x vitest --run tests/e2e",
+    "test:e2e": "vitest --run tests/e2e",
     "build:cjs": "tsc --build tsconfig.json && echo '{ \"type\": \"commonjs\" }' > lib/cjs/package.json",
     "build:esm": "tsc --build tsconfig.esm.json && echo '{ \"type\": \"module\" }' > lib/esm/package.json",
     "build": "npm run build:esm & npm run build:cjs",

packages/tracer/src/Tracer.ts

@@ -321,7 +321,7 @@ class Tracer extends Utility implements TracerInterface {
    * @deprecated Use {@link captureAWSv3Client} instead.
    * @param service - AWS SDK v2 client
    */
-  public captureAWSClient<T>(service: T): T {
+  /* v8 ignore start */ public captureAWSClient<T>(service: T): T {
     if (!this.isTracingEnabled()) return service;
 
     try {
@@ -338,7 +338,7 @@ class Tracer extends Utility implements TracerInterface {
         throw error;
       }
     }
-  }
+  } /* v8 ignore stop */
 
   /**
    * Patch an AWS SDK v3 client and create traces when your application makes calls to that AWS service.

packages/tracer/tests/e2e/decorator.test.ts

@@ -1,14 +1,10 @@
-/**
- * Test tracer when using the decorator instrumentation
- *
- * @group e2e/tracer/decorator
- */
 import { join } from 'node:path';
 import { TestStack } from '@aws-lambda-powertools/testing-utils';
 import { TestDynamodbTable } from '@aws-lambda-powertools/testing-utils/resources/dynamodb';
 import { TestNodejsFunction } from '@aws-lambda-powertools/testing-utils/resources/lambda';
 import { getTraces } from '@aws-lambda-powertools/testing-utils/utils/xray-traces';
 import type { EnrichedXRayTraceDocumentParsed } from 'packages/testing/lib/cjs/types.js';
+import { afterAll, beforeAll, describe, expect, it } from 'vitest';
 import { invokeAllTestCases } from '../helpers/invokeAllTests.js';
 import {
   RESOURCE_NAME_PREFIX,

packages/tracer/tests/e2e/manual.test.ts

@@ -1,14 +1,10 @@
-/**
- * Test tracer when instrumenting the lambda function manually
- *
- * @group e2e/tracer/manual
- */
 import { join } from 'node:path';
 import { TestStack } from '@aws-lambda-powertools/testing-utils';
 import { TestDynamodbTable } from '@aws-lambda-powertools/testing-utils/resources/dynamodb';
 import { TestNodejsFunction } from '@aws-lambda-powertools/testing-utils/resources/lambda';
 import { getTraces } from '@aws-lambda-powertools/testing-utils/utils/xray-traces';
 import type { EnrichedXRayTraceDocumentParsed } from 'packages/testing/lib/cjs/types.js';
+import { afterAll, beforeAll, describe, expect, it } from 'vitest';
 import { invokeAllTestCases } from '../helpers/invokeAllTests.js';
 import {
   RESOURCE_NAME_PREFIX,

packages/tracer/tests/e2e/middy.test.ts

@@ -1,14 +1,10 @@
-/**
- * Test tracer when using the Middy.js instrumentation
- *
- * @group e2e/tracer/middy
- */
 import { join } from 'node:path';
 import { TestStack } from '@aws-lambda-powertools/testing-utils';
 import { TestDynamodbTable } from '@aws-lambda-powertools/testing-utils/resources/dynamodb';
 import { TestNodejsFunction } from '@aws-lambda-powertools/testing-utils/resources/lambda';
 import { getTraces } from '@aws-lambda-powertools/testing-utils/utils/xray-traces';
 import type { EnrichedXRayTraceDocumentParsed } from 'packages/testing/lib/cjs/types.js';
+import { afterAll, beforeAll, describe, expect, it } from 'vitest';
 import { invokeAllTestCases } from '../helpers/invokeAllTests.js';
 import {
   RESOURCE_NAME_PREFIX,

packages/tracer/tests/unit/EnvironmentVariablesService.test.ts

@@ -1,15 +1,11 @@
-/**
- * Test EnvironmentVariablesService class
- *
- * @group unit/tracer/all
- */
+import { afterAll, beforeEach, describe, expect, it, vi } from 'vitest';
 import { EnvironmentVariablesService } from '../../src/config/EnvironmentVariablesService.js';
 
 describe('Class: EnvironmentVariablesService', () => {
   const ENVIRONMENT_VARIABLES = process.env;
 
   beforeEach(() => {
-    jest.resetModules();
+    vi.resetModules();
     process.env = { ...ENVIRONMENT_VARIABLES };
   });
 
@@ -18,7 +14,7 @@ describe('Class: EnvironmentVariablesService', () => {
   });
 
   describe('Method: getTracingEnabled', () => {
-    test('It returns the value of the environment variable POWERTOOLS_TRACE_ENABLED', () => {
+    it('returns the value of the environment variable POWERTOOLS_TRACE_ENABLED', () => {
       // Prepare
       process.env.POWERTOOLS_TRACE_ENABLED = 'false';
       const service = new EnvironmentVariablesService();
@@ -32,7 +28,7 @@ describe('Class: EnvironmentVariablesService', () => {
   });
 
   describe('Method: getTracingCaptureResponse', () => {
-    test('It returns the value of the environment variable POWERTOOLS_TRACER_CAPTURE_RESPONSE', () => {
+    it('returns the value of the environment variable POWERTOOLS_TRACER_CAPTURE_RESPONSE', () => {
       // Prepare
       process.env.POWERTOOLS_TRACER_CAPTURE_RESPONSE = 'false';
       const service = new EnvironmentVariablesService();
@@ -46,7 +42,7 @@ describe('Class: EnvironmentVariablesService', () => {
   });
 
   describe('Method: getTracingCaptureError', () => {
-    test('It returns the value of the environment variable POWERTOOLS_TRACER_CAPTURE_ERROR', () => {
+    it('returns the value of the environment variable POWERTOOLS_TRACER_CAPTURE_ERROR', () => {
       // Prepare
       process.env.POWERTOOLS_TRACER_CAPTURE_ERROR = 'false';
       const service = new EnvironmentVariablesService();
@@ -60,7 +56,7 @@ describe('Class: EnvironmentVariablesService', () => {
   });
 
   describe('Method: getCaptureHTTPsRequests', () => {
-    test('It returns the value of the environment variable POWERTOOLS_TRACER_CAPTURE_HTTPS_REQUESTS', () => {
+    it('returns the value of the environment variable POWERTOOLS_TRACER_CAPTURE_HTTPS_REQUESTS', () => {
       // Prepare
       process.env.POWERTOOLS_TRACER_CAPTURE_HTTPS_REQUESTS = 'false';
       const service = new EnvironmentVariablesService();
@@ -74,7 +70,7 @@ describe('Class: EnvironmentVariablesService', () => {
   });
 
   describe('Method: getSamLocal', () => {
-    test('It returns the value of the environment variable AWS_SAM_LOCAL', () => {
+    it('returns the value of the environment variable AWS_SAM_LOCAL', () => {
       // Prepare
       process.env.AWS_SAM_LOCAL = 'true';
       const service = new EnvironmentVariablesService();
@@ -88,7 +84,7 @@ describe('Class: EnvironmentVariablesService', () => {
   });
 
   describe('Method: getAwsExecutionEnv', () => {
-    test('It returns the value of the environment variable AWS_EXECUTION_ENV', () => {
+    it('returns the value of the environment variable AWS_EXECUTION_ENV', () => {
       // Prepare
       process.env.AWS_EXECUTION_ENV = 'nodejs20.x';
       const service = new EnvironmentVariablesService();