Bump jest from 26.6.3 to 27.0.3 (#352)

* Bump jest from 26.6.3 to 27.0.3

Bumps [jest](https://github.com/facebook/jest) from 26.6.3 to 27.0.3.
- [Release notes](https://github.com/facebook/jest/releases)
- [Changelog](https://github.com/facebook/jest/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/jest/compare/v26.6.3...v27.0.3)

Signed-off-by: dependabot[bot] <support@github.com>

* Use jsdom test env

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Glen Cheney <cheney.glen@gmail.com>

jest.config.js

@@ -6,21 +6,14 @@ module.exports = {
   coverageDirectory: 'coverage',
 
   // An array of regexp pattern strings used to skip coverage collection
-  coveragePathIgnorePatterns: [
-    '/node_modules/',
-    '/test/',
-  ],
+  coveragePathIgnorePatterns: ['/node_modules/', '/test/'],
 
   // A list of reporter names that Jest uses when writing coverage reports
-  coverageReporters: [
-    'text',
-    'lcov',
-  ],
+  coverageReporters: ['text', 'lcov'],
 
   // An array of regexp pattern strings that are matched against all test paths,
   // matched tests are skipped
-  testPathIgnorePatterns: [
-    '<rootDir>/gulp/',
-    '/node_modules/',
-  ],
+  testPathIgnorePatterns: ['<rootDir>/gulp/', '/node_modules/'],
+
+  testEnvironment: 'jsdom',
 };

package.json

@@ -64,7 +64,7 @@
     "gulp-postcss": "^9.0.0",
     "gulp-sass": "^4.0.0",
     "gulp-shell": "^0.8.0",
-    "jest": "^26.1.0",
+    "jest": "^27.0.3",
     "postcss": "^8.2.8",
     "rollup": "^2.2.0",
     "rollup-plugin-terser": "^7.0.0",