Migrate test/friendly-errors/*.js test files to Vitest

Author: Kocal

test/friendly-errors/formatters/missing-css-file.js renamed to test/friendly-errors/formatters/missing-css-file.test.js

@@ -9,7 +9,7 @@
 
 'use strict';
 
-const expect = require('chai').expect;
+import { describe, it, expect } from 'vitest';
 const formatter = require('../../../lib/friendly-errors/formatters/missing-css-file');
 
 describe('formatters/missing-css-file', () => {

test/friendly-errors/formatters/missing-loader.js renamed to test/friendly-errors/formatters/missing-loader.test.js

@@ -9,7 +9,7 @@
 
 'use strict';
 
-const expect = require('chai').expect;
+import { describe, it, expect } from 'vitest';
 const formatter = require('../../../lib/friendly-errors/formatters/missing-loader');
 
 describe('formatters/missing-loader', () => {

test/friendly-errors/transformers/missing-css-file.js renamed to test/friendly-errors/transformers/missing-css-file.test.js

@@ -9,7 +9,7 @@
 
 'use strict';
 
-const expect = require('chai').expect;
+import { describe, it, expect } from 'vitest';
 const transform = require('../../../lib/friendly-errors/transformers/missing-css-file');
 
 describe('transform/missing-css-file', () => {

test/friendly-errors/transformers/missing-loader.js renamed to test/friendly-errors/transformers/missing-loader.test.js

@@ -9,7 +9,7 @@
 
 'use strict';
 
-const expect = require('chai').expect;
+import { describe, it, expect } from 'vitest';
 const transformFactory = require('../../../lib/friendly-errors/transformers/missing-loader');
 const RuntimeConfig = require('../../../lib/config/RuntimeConfig');
 const WebpackConfig = require('../../../lib/WebpackConfig');