Clean history after every test that changes history

spec/javascripts/environments/environment_spec.js

@@ -91,6 +91,10 @@ describe('Environment', () => {
       });
 
       describe('pagination', () => {
+        afterEach(() => {
+          window.history.pushState({}, null, '');
+        });
+
         it('should render pagination', (done) => {
           setTimeout(() => {
             expect(

spec/javascripts/lib/utils/common_utils_spec.js

@@ -46,6 +46,10 @@ require('~/lib/utils/common_utils');
         spyOn(window.document, 'getElementById').and.callThrough();
       });
 
+      afterEach(() => {
+        window.history.pushState({}, null, '');
+      });
+
       function expectGetElementIdToHaveBeenCalledWith(elementId) {
         expect(window.document.getElementById).toHaveBeenCalledWith(elementId);
       }
@@ -80,6 +84,10 @@ require('~/lib/utils/common_utils');
         window.history.pushState({}, null, '?scope=all&p=2');
       });
 
+      afterEach(() => {
+        window.history.pushState({}, null, '');
+      });
+
       it('should return valid parameter', () => {
         const value = gl.utils.getParameterByName('scope');
         expect(value).toBe('all');

spec/javascripts/vue_shared/components/table_pagination_spec.js

@@ -124,6 +124,10 @@ describe('Pagination component', () => {
 });
 
 describe('paramHelper', () => {
+  afterEach(() => {
+    window.history.pushState({}, null, '');
+  });
+
   it('can parse url parameters correctly', () => {
     window.history.pushState({}, null, '?scope=all&p=2');