test: fix

Author: alexander-akait

package.json

@@ -21,7 +21,7 @@
     "fix:js": "npm run lint:js -- --fix",
     "fix": "npm-run-all fix:js fmt",
     "commitlint": "commitlint --from=master",
-    "test:only": "jest --forceExit",
+    "test:only": "jest",
     "test:coverage": "npm run test:only -- --coverage",
     "test:watch": "npm run test:coverage --watch",
     "test": "npm run test:coverage",

test/server/Server.test.js

@@ -127,6 +127,8 @@ describe('Server', () => {
     const emitError = () => server.server.emit('error', new Error('Error !!!'));
 
     expect(emitError).toThrowError();
+
+    server.close();
   });
 
   // issue: https://github.com/webpack/webpack-dev-server/issues/1724