feat: implement native node fetch instrumentation

.circleci/config.yml

@@ -22,6 +22,12 @@ workflows:
           branches:
             ignore: master
 
+    - test-18:
+        context: common
+        filters:
+          branches:
+            ignore: master
+
     - lumigo-orb/is_environment_available:
         context: common
         filters:
@@ -64,6 +70,7 @@ workflows:
         context: common
         requires:
           - test
+          - test-18
           - lumigo-orb/integration-test-parallel
 
     - deploy:
@@ -107,11 +114,49 @@ jobs:
         command: npm run lint
     - run:
         name: code-coverage
-        command: npm test --coverage && codecov
+        command: npm test && codecov
     - store_artifacts:
         path: coverage
         prefix: coverage
 
+  test-18:
+    docker:
+      - image: node:18.20.3-bookworm-slim
+    environment:
+      - TZ: Asia/Jerusalem
+      - NODE_OPTIONS: --max_old_space_size=1500
+    resource_class: medium+
+    working_directory: ~/lumigo-node
+    steps:
+      - run:
+          name: show current node version
+          command: node --version
+      - run:
+          name: install openssl
+          command: apt-get update -y && apt-get install -y openssl
+      - checkout
+      - run:
+          name: install npm dependencies
+          command: npm install --legacy-peer-deps
+      - run:
+          name: install-npm-inner
+          command: |
+            pushd auto-instrument-handler
+              npm install
+            popd
+      - run:
+          name: prettier
+          command: npm run prettier:ci
+      - run:
+          name: check types
+          command: npm run check-types
+      - run:
+          name: test
+          command: npm test
+      - run:
+          name: eslint
+          command: npm run lint
+
   deploy:
     <<: *defaults
     environment:

jest.config.js

@@ -1,22 +1,40 @@
-module.exports = {
-  collectCoverage: true,
-  collectCoverageFrom: [
+module.exports = () => {
+  const [NODE_MAJOR_VERSION] = process.versions.node.split('.').map(Number);
+  let collectCoverageFrom = [
     '**/src/**/**/**/**.js',
     '**/src/**/**/**/**.ts',
     '!./src/tools/xmlToJson.js',
     '!./src/testdata/functions/**/**.js',
     '!./d_example/**/**',
-  ],
-  coverageDirectory: './coverage/',
-  coverageThreshold: {
+  ];
+  let coverageThreshold = {
     global: {
       lines: 99.7,
     },
-  },
-  modulePaths: ['<rootDir>/dist'],
-  roots: ['<rootDir>/src'],
-  setupFilesAfterEnv: ['./testUtils/jest.setup.js'],
-  globalSetup: './testUtils/prismaSetup.js',
-  silent: true,
-  watchPathIgnorePatterns: ['globalConfig'],
+  };
+
+  if (NODE_MAJOR_VERSION < 18) {
+    // fetch is not supported in Node.js versions lower than 18,
+    // so no need to check coverage for that version
+    collectCoverageFrom.push('!./src/hooks/fetch.ts');
+  }
+
+  if (NODE_MAJOR_VERSION > 14) {
+    // Some of our unit tests don't work on Node.js grater than 14,
+    // so the coverage is lower when running with these versions
+    coverageThreshold.global.lines = 98.4;
+  }
+
+  return {
+    collectCoverage: true,
+    collectCoverageFrom: collectCoverageFrom,
+    coverageDirectory: './coverage/',
+    coverageThreshold: coverageThreshold,
+    modulePaths: ['<rootDir>/dist'],
+    roots: ['<rootDir>/src'],
+    setupFilesAfterEnv: ['./testUtils/jest.setup.js'],
+    globalSetup: './testUtils/prismaSetup.js',
+    silent: true,
+    watchPathIgnorePatterns: ['globalConfig'],
+  };
 };