From 5c512b68613def02b56015c5d92cf210c0425e5c Mon Sep 17 00:00:00 2001
From: Julien <juliencaron@protonmail.com>
Date: Mon, 19 Sep 2022 18:26:12 +0200
Subject: [PATCH] refactor: simplify jest config

---
 jest.config.ts           | 38 +++++++++++---------------------------
 package.json             |  3 +--
 tests/file-mock.js       |  1 -
 tests/jest-preprocess.js |  5 -----
 tests/loadershim.js      | 13 -------------
 5 files changed, 12 insertions(+), 48 deletions(-)
 delete mode 100644 tests/file-mock.js
 delete mode 100644 tests/jest-preprocess.js
 delete mode 100644 tests/loadershim.js

diff --git a/jest.config.ts b/jest.config.ts
index babdc236..e49568cc 100644
--- a/jest.config.ts
+++ b/jest.config.ts
@@ -1,44 +1,28 @@
-import type { Config } from '@jest/types'
-import glob from 'glob'
-
-const packages = glob.sync(`./src`).map(p => p.replace(/^\./, `<rootDir>`))
+import type { Config } from 'jest'
 
 const ignoreDirs = [
-  'build/',
   'dist/',
   'node_modules/',
-  `\\.cache`,
   'scripts/',
-  'public/',
-  'generators/',
   'generated/',
   'website/',
   'tests/',
+  'packages/',
 ]
 
-const config: Config.InitialOptions = {
+export default async (): Promise<Config> => ({
+  preset: 'ts-jest',
   testEnvironment: 'jsdom',
-  testEnvironmentOptions: {
-    url: `http://localhost`,
-  },
-  roots: packages,
+  verbose: false,
+  silent: true,
+  roots: ['./src'],
   transform: {
-    '^.+\\.[jt]sx?$': `<rootDir>/tests/jest-preprocess.js`,
-  },
-  moduleNameMapper: {
-    '.+\\.(css|styl|less|sass|scss)$': `identity-obj-proxy`,
-    '.+\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$': `<rootDir>/tests/file-mock.js`,
+    '^.+\\.[t]sx?$': `ts-jest`,
   },
+  transformIgnorePatterns: ['<rootDir>/node_modules/'],
   testPathIgnorePatterns: ignoreDirs,
-  transformIgnorePatterns: [`node_modules/(?!(gatsby)/)`],
   coveragePathIgnorePatterns: ignoreDirs,
   coverageDirectory: '<rootDir>/coverage/',
-  globals: {
-    __PATH_PREFIX__: ``,
-  },
-  setupFiles: [`<rootDir>/tests/loadershim.js`],
-  testRegex: '(/__tests__/.*|(\\.|/)(test|spec))\\.([tj]sx?)$',
+  testRegex: '(/__tests__/.*|(\\.|/)(test|spec))\\.([t]sx?)$',
   moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
-}
-
-export default config
+})
diff --git a/package.json b/package.json
index d66e6da2..c6a925d1 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,6 @@
   "devDependencies": {
     "@testing-library/react": "^12.1.2",
     "@testing-library/react-hooks": "^7.0.2",
-    "@types/glob": "^8.0.0",
     "@types/jest": "^29.0.3",
     "@types/node": "^18.7.18",
     "@types/react": "^17.0.38",
@@ -60,11 +59,11 @@
     "eslint-plugin-tree-shaking": "^1.10.0",
     "jest": "^29.0.3",
     "jest-environment-jsdom": "^29.0.3",
-    "jest-preset-gatsby": "^1.0.134",
     "netlify-cli": "^11.8.0",
     "plop": "^3.0.5",
     "prettier": "^2.5.1",
     "rimraf": "^3.0.2",
+    "ts-jest": "^29.0.1",
     "ts-node": "^10.2.1",
     "typescript": "^4.5.5"
   },
diff --git a/tests/file-mock.js b/tests/file-mock.js
deleted file mode 100644
index 0e56c5b5..00000000
--- a/tests/file-mock.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = 'test-file-stub'
diff --git a/tests/jest-preprocess.js b/tests/jest-preprocess.js
deleted file mode 100644
index ef6b675d..00000000
--- a/tests/jest-preprocess.js
+++ /dev/null
@@ -1,5 +0,0 @@
-const babelOptions = {
-  presets: ['babel-preset-gatsby', '@babel/preset-typescript'],
-}
-
-module.exports = require('babel-jest').default.createTransformer(babelOptions)
diff --git a/tests/loadershim.js b/tests/loadershim.js
deleted file mode 100644
index a1347d9d..00000000
--- a/tests/loadershim.js
+++ /dev/null
@@ -1,13 +0,0 @@
-global.___loader = {
-  enqueue: jest.fn(),
-}
-
-global.console = {
-  warn: jest.fn(),
-
-  // Keep native behaviour for other methods, use those to print out things in your own tests, not `console.log`
-  error: console.error,
-  info: console.info,
-  debug: console.debug,
-  log: console.log,
-}