Configure Jest using Typescript

This brings auto-completion to Jest configuration. See: jestjs/jest#10564 See: jestjs/jest#9636 (comment)
johnmartel · Oct 28, 2020 · 6841248 · 6841248
1 parent 943a0ba
commit 6841248
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Showing 4 changed files with 102 additions and 17 deletions.
diff --git a/jest.config.js → jest.config.ts b/jest.config.js → jest.config.ts
@@ -1,4 +1,6 @@
-module.exports = {
+import type { Config } from '@jest/types';
+
+const config: Config.InitialOptions = {
   collectCoverage: false,
   collectCoverageFrom: ['src/**/*.ts', '!src/octokitTypes.ts', '!lib/**', '!node_modules/**'],
   coverageDirectory: 'coverage',
@@ -17,3 +19,4 @@ module.exports = {
   testEnvironment: 'node',
   testPathIgnorePatterns: ['/fixtures/'],
 };
+export default config;
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -28,6 +28,7 @@
   },
   "homepage": "https://github.com/johnmartel/organization-membership-action#readme",
   "devDependencies": {
+    "@jest/types": "26.6.1",
     "@types/jest": "26.0.0",
     "@typescript-eslint/eslint-plugin": "2.34.0",
     "@typescript-eslint/parser": "2.34.0",
@@ -43,6 +44,7 @@
     "prettier": "2.1.2",
     "rimraf": "3.0.2",
     "ts-jest": "26.4.1",
+    "ts-node": "9.0.0",
     "typescript": "3.9.5"
   },
   "dependencies": {

diff --git a/tsconfig.json b/tsconfig.json
@@ -24,5 +24,8 @@
     "global.d.ts",
     "src/**/*"
   ],
-  "compileOnSave": false
+  "compileOnSave": false,
+  "tsNode": {
+    "compiler": "typescript"
+  }
 }