Move randomize option to jest.config.js

Author: tkrotoff

examples/node/jest.config.js

@@ -2,15 +2,18 @@
 
 /** @type {import('jest').Config} */
 const config = {
-  testEnvironment: 'node',
-
-  setupFilesAfterEnv: ['./jest.setup.ts'],
-
   // By default Jest allows for __tests__/*.js, *.spec.js and *.test.js
   // https://jestjs.io/docs/en/26.5/configuration#testregex-string--arraystring
   // Let's be strict and use *.test.js only
   testRegex: '\\.test\\.ts$',
 
+  // https://github.com/jestjs/jest/issues/4386#issuecomment-586028628
+  randomize: true,
+
+  testEnvironment: 'node',
+
+  setupFilesAfterEnv: ['./jest.setup.ts'],
+
   coverageThreshold: {
     global: {
       statements: 100,

examples/node/package.json

@@ -7,8 +7,8 @@
     "clean": "rm -rf build coverage",
     "clean:all": "npm run clean && rm -rf node_modules package-lock.json",
     "start": "ts-node index.ts",
-    "test": "jest --randomize --verbose",
-    "test:coverage": "jest --randomize --coverage",
+    "test": "jest --verbose",
+    "test:coverage": "jest --coverage",
     "tsc": "tsc",
     "npm:update": "npm run clean:all && npx npm-check-updates --upgrade && npm install"
   },

examples/web/jest.config.js

@@ -2,18 +2,21 @@
 
 /** @type {import('jest').Config} */
 const config = {
+  // By default Jest allows for __tests__/*.js, *.spec.js and *.test.js
+  // https://jestjs.io/docs/en/26.5/configuration#testregex-string--arraystring
+  // Let's be strict and use *.test.js only
+  testRegex: '\\.test\\.ts$',
+
+  // https://github.com/jestjs/jest/issues/4386#issuecomment-586028628
+  randomize: true,
+
   // FIXME https://github.com/jsdom/jsdom/issues/3363
   // FIXME https://github.com/jsdom/jsdom/issues/1724
   // https://github.com/facebook/jest/blob/v29.4.3/website/versioned_docs/version-29.4/Configuration.md#testenvironment-string
   testEnvironment: './FixJSDOMEnvironment.ts',
 
   setupFilesAfterEnv: ['./jest.setup.ts'],
 
-  // By default Jest allows for __tests__/*.js, *.spec.js and *.test.js
-  // https://jestjs.io/docs/en/26.5/configuration#testregex-string--arraystring
-  // Let's be strict and use *.test.js only
-  testRegex: '\\.test\\.ts$',
-
   coverageThreshold: {
     global: {
       statements: 100,

examples/web/package.json

@@ -8,8 +8,8 @@
     "clean:all": "npm run clean && rm -rf node_modules package-lock.json",
     "start": "webpack serve --mode=development --host 0.0.0.0",
     "build": "webpack --mode=development",
-    "test": "jest --randomize --verbose",
-    "test:coverage": "jest --randomize --coverage",
+    "test": "jest --verbose",
+    "test:coverage": "jest --coverage",
     "tsc": "tsc",
     "npm:update": "npm run clean:all && npx npm-check-updates --upgrade && npm install"
   },

jest.config.js

@@ -8,13 +8,16 @@ const esModules = ['node-fetch', 'data-uri-to-buffer', 'fetch-blob', 'formdata-p
 
 /** @type {import('jest').Config} */
 const config = {
-  setupFilesAfterEnv: ['./jest.setup.ts'],
-
   // By default Jest allows for __tests__/*.js, *.spec.js and *.test.js
   // https://jestjs.io/docs/en/26.5/configuration#testregex-string--arraystring
   // Let's be strict and use *.test.js only
   testRegex: '\\.test\\.ts$',
 
+  // https://github.com/jestjs/jest/issues/4386#issuecomment-586028628
+  randomize: true,
+
+  setupFilesAfterEnv: ['./jest.setup.ts'],
+
   transformIgnorePatterns: [`/node_modules/(?!${esModules.join('|')})`],
 
   testPathIgnorePatterns: [...defaults.testPathIgnorePatterns, '/examples/'],

package.json

@@ -35,11 +35,11 @@
     "start:example:node": "cd examples/node && npm run start",
     "test": "npm run test:node-fetch",
     "test:coverage": "npm run test:coverage:node-fetch",
-    "test:node-fetch": "NODE_EXTRA_CA_CERTS=./src/createTestServer/createTestServer.cert FETCH=node-fetch jest --randomize --verbose",
-    "test:coverage:node-fetch": "NODE_EXTRA_CA_CERTS=./src/createTestServer/createTestServer.cert FETCH=node-fetch jest --randomize --coverage",
-    "test:whatwg-fetch": "NODE_EXTRA_CA_CERTS=./src/createTestServer/createTestServer.cert FETCH=whatwg-fetch jest --env=jsdom --randomize --verbose",
-    "test:undici": "NODE_EXTRA_CA_CERTS=./src/createTestServer/createTestServer.cert FETCH=undici jest --randomize --verbose",
-    "test:coverage:whatwg-fetch": "NODE_EXTRA_CA_CERTS=./src/createTestServer/createTestServer.cert FETCH=whatwg-fetch jest --env=jsdom --randomize --coverage",
+    "test:node-fetch": "NODE_EXTRA_CA_CERTS=./src/createTestServer/createTestServer.cert FETCH=node-fetch jest --verbose",
+    "test:coverage:node-fetch": "NODE_EXTRA_CA_CERTS=./src/createTestServer/createTestServer.cert FETCH=node-fetch jest --coverage",
+    "test:whatwg-fetch": "NODE_EXTRA_CA_CERTS=./src/createTestServer/createTestServer.cert FETCH=whatwg-fetch jest --env=jsdom --verbose",
+    "test:undici": "NODE_EXTRA_CA_CERTS=./src/createTestServer/createTestServer.cert FETCH=undici jest --verbose",
+    "test:coverage:whatwg-fetch": "NODE_EXTRA_CA_CERTS=./src/createTestServer/createTestServer.cert FETCH=whatwg-fetch jest --env=jsdom --coverage",
     "test:e2e": "playwright test",
     "test:e2e:debug": "playwright test --debug",
     "test:coverage:examples": "npm run test:coverage:example:web && npm run test:coverage:example:node",