Add tests for release script (#11454)

* Install jest

* Configure jest script

* Fix eslintrc

* Add @types/jest

* Add test for validate-new-version

* Fix eslintrc

* Add workflow file

* Add node version

* cd to script/release

* Fix workflow file

* Fix version

* Ignore from root

* Update yarn.lock

* Set defaults.run.working-directory

Author: sosukesuzuki

.eslintrc.js

@@ -153,6 +153,7 @@ module.exports = {
         "tests/format/**/jsfmt.spec.js",
         "tests/config/**/*.js",
         "tests/integration/**/*.js",
+        "scripts/release/__tests__/**/*.spec.js",
       ],
       env: {
         jest: true,

.github/workflows/release-script-test.yml

@@ -0,0 +1,35 @@
+name: Release_Script_Test
+
+defaults:
+  run:
+    working-directory: scripts/release
+
+on:
+  push:
+    paths:
+      - "scripts/release/**"
+      - ".github/workflows/release-script-test.yml"
+  pull_request:
+    paths:
+      - "scripts/release/**"
+      - ".github/workflows/release-script-test.yml"
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/[email protected]
+
+      - name: Setup Node.js
+        uses: actions/[email protected]
+        with:
+          version: "14"
+          cache: "yarn"
+
+      - name: Install Dependencies
+        run: yarn install --frozen-lockfile
+
+      - name: Test
+        run: yarn test

jest.config.js

@@ -71,7 +71,11 @@ module.exports = {
     "prettier-local": "<rootDir>/tests/config/require-prettier.js",
     "prettier-standalone": "<rootDir>/tests/config/require-standalone.js",
   },
-  modulePathIgnorePatterns: ["<rootDir>/dist", "<rootDir>/website"],
+  modulePathIgnorePatterns: [
+    "<rootDir>/dist",
+    "<rootDir>/website",
+    "<rootDir>/scripts/release",
+  ],
   transform,
   watchPlugins: [
     "jest-watch-typeahead/filename",

package.json

@@ -98,6 +98,7 @@
     "@rollup/plugin-node-resolve": "13.0.4",
     "@rollup/plugin-replace": "3.0.0",
     "@types/estree": "0.0.50",
+    "@types/jest": "27.0.1",
     "babel-jest": "27.1.0",
     "babel-loader": "8.2.2",
     "benchmark": "2.1.4",

scripts/release/__tests__/steps/validate-new-version.spec.js

@@ -0,0 +1,15 @@
+import chalk from "chalk";
+import step from "../../steps/validate-new-version.js";
+
+describe("validate-new-version", () => {
+  it("throws error for invalid semver", () => {
+    expect(() => {
+      step({ version: "foo" });
+    }).toThrow("Invalid version specified");
+  });
+  it("throws error when version isn't greater than prev version", () => {
+    expect(() => {
+      step({ version: "0.0.1", previousVersion: "0.0.2" });
+    }).toThrow(`Version ${chalk.yellow("0.0.1")} has already been published`);
+  });
+});

scripts/release/package.json

@@ -1,6 +1,9 @@
 {
   "private": true,
   "type": "module",
+  "scripts": {
+    "test": "NODE_OPTIONS=--experimental-vm-modules jest"
+  },
   "dependencies": {
     "chalk": "4.1.2",
     "execa": "5.1.1",
@@ -9,5 +12,8 @@
     "outdent": "0.8.0",
     "semver": "7.3.5",
     "string-width": "5.0.0"
+  },
+  "devDependencies": {
+    "jest": "27.1.0"
   }
 }