Use vitest globals (#27102)

Enable [globals](https://vitest.dev/config/#globals) in vitest, reducing
the noise in test files.

Author: silverwind

.eslintrc.yaml

@@ -18,6 +18,7 @@ plugins:
   - eslint-plugin-regexp
   - eslint-plugin-sonarjs
   - eslint-plugin-unicorn
+  - eslint-plugin-vitest-globals
   - eslint-plugin-wc
 
 env:
@@ -45,6 +46,9 @@ overrides:
   - files: ["*.config.*"]
     rules:
       import/no-unused-modules: [0]
+  - files: ["**/*.test.*", "web_src/js/test/setup.js"]
+    env:
+      vitest-globals/env: true
   - files: ["web_src/js/modules/fetch.js", "web_src/js/standalone/**/*"]
     rules:
       no-restricted-syntax: [2, WithStatement, ForInStatement, LabeledStatement, SequenceExpression]

package-lock.json

@@ -66,6 +66,7 @@
     "eslint-plugin-regexp": "1.15.0",
     "eslint-plugin-sonarjs": "0.21.0",
     "eslint-plugin-unicorn": "48.0.1",
+    "eslint-plugin-vitest-globals": "1.4.0",
     "eslint-plugin-vue": "9.17.0",
     "eslint-plugin-vue-scoped-css": "2.5.0",
     "eslint-plugin-wc": "2.0.3",

package.json

@@ -11,6 +11,7 @@ export default defineConfig({
     open: false,
     allowOnly: true,
     passWithNoTests: true,
+    globals: true,
     watch: false,
   },
   plugins: [

vitest.config.js

@@ -1,4 +1,3 @@
-import {test, expect} from 'vitest';
 import {parseIssueListQuickGotoLink} from './common-issue-list.js';
 
 test('parseIssueListQuickGotoLink', () => {

web_src/js/features/common-issue-list.test.js

@@ -1,4 +1,3 @@
-import {test, expect} from 'vitest';
 import {singleAnchorRegex, rangeAnchorRegex} from './repo-code.js';
 
 test('singleAnchorRegex', () => {

web_src/js/features/repo-code.test.js

@@ -1,4 +1,3 @@
-import {describe, expect, test} from 'vitest';
 import {strSubMatch, calcMatchedWeight, filterRepoFilesWeighted} from './repo-findfile.js';
 
 describe('Repo Find Files', () => {

web_src/js/features/repo-findfile.test.js

@@ -1,4 +1,3 @@
-import {test, expect} from 'vitest';
 import {GET, POST, PATCH, PUT, DELETE} from './fetch.js';
 
 // tests here are only to satisfy the linter for unused functions

web_src/js/modules/fetch.test.js

@@ -1,4 +1,3 @@
-import {test, expect} from 'vitest';
 import {showInfoToast, showErrorToast, showWarningToast} from './toast.js';
 
 test('showInfoToast', async () => {

web_src/js/modules/toast.test.js

@@ -1,4 +1,3 @@
-import {expect, test} from 'vitest';
 import {renderAnsi} from './ansi.js';
 
 test('renderAnsi', () => {