Merge branch 'winh-jestify-security-dashboard-filter-spec-ee' into 'master'

Move security dashboard filter test to Jest

See merge request gitlab-org/gitlab-ee!12518

ee/spec/javascripts/security_dashboard/components/filter_spec.js → ee/spec/frontend/security_dashboard/components/filter_spec.js

 import Vue from 'vue';
 import component from 'ee/security_dashboard/components/filter.vue';
 import createStore from 'ee/security_dashboard/store';
-import { mountComponentWithStore } from 'spec/helpers/vue_mount_component_helper';
+import { mountComponentWithStore } from 'helpers/vue_mount_component_helper';
 
 describe('Filter component', () => {
   let vm;

spec/frontend/environment.js

@@ -38,6 +38,16 @@ class CustomEnvironment extends JSDOMEnvironment {
     this.global.fixturesBasePath = `${process.cwd()}/${
       IS_EE ? 'ee/' : ''
     }spec/javascripts/fixtures`;
+
+    // Not yet supported by JSDOM: https://github.com/jsdom/jsdom/issues/317
+    this.global.document.createRange = () => ({
+      setStart: () => {},
+      setEnd: () => {},
+      commonAncestorContainer: {
+        nodeName: 'BODY',
+        ownerDocument: this.global.document,
+      },
+    });
   }
 
   async teardown() {