edited tests for no fail and added new Tag test

src/elements/Preview/Previw.test.js

@@ -22,7 +22,7 @@ describe('<Preview/>', function () {
         const wrapper = shallow(<Preview/>);
         wrapper.setProps({
             viewbinding: {
-                showVideo: () => {
+                changeRootElement: () => {
                     func()
                 }
             }

src/elements/Tag/Tag.test.js

@@ -5,6 +5,14 @@ import "@testing-library/jest-dom"
 import {shallow} from 'enzyme'
 
 describe('<Tag/>', function () {
+    function prepareFetchApi(response) {
+        const mockJsonPromise = Promise.resolve(response);
+        const mockFetchPromise = Promise.resolve({
+            json: () => mockJsonPromise,
+        });
+        return (jest.fn().mockImplementation(() => mockFetchPromise));
+    }
+
     it('renders without crashing ', function () {
         const wrapper = shallow(<Tag>test</Tag>);
         wrapper.unmount();
@@ -14,4 +22,22 @@ describe('<Tag/>', function () {
         const wrapper = shallow(<Tag>test</Tag>);
         expect(wrapper.children().text()).toBe("test");
     });
+
+    it('click event triggered and setvideo callback called', done => {
+        global.fetch = prepareFetchApi({});
+        const func = jest.fn();
+
+        const wrapper = shallow(<Tag
+            contentbinding={func}>test</Tag>);
+
+        wrapper.simulate("click");
+
+        process.nextTick(() => {
+            // state to be set correctly with response
+            expect(func).toBeCalledTimes(1);
+
+            global.fetch.mockClear();
+            done();
+        });
+    });
 });

src/pages/HomePage/HomePage.test.js

@@ -1,4 +1,4 @@
-import {shallow} from "enzyme";
+import {shallow, mount} from "enzyme";
 import React from "react";
 import HomePage from "./HomePage";
 import VideoContainer from "../../elements/VideoContainer/VideoContainer";
@@ -23,7 +23,8 @@ describe('<HomePage/>', function () {
     });
 
     it('ckeck default tag click events', function () {
-        const wrapper = shallow(<HomePage/>);
+        // todo mount bad here maybe delete this test
+        const wrapper = mount(<HomePage/>);
         global.fetch = prepareFetchApi({});
 
         expect(global.fetch).toBeCalledTimes(0);

src/pages/Player/Player.test.js

@@ -99,7 +99,7 @@ describe('<Player/>', function () {
 
         wrapper.setProps({
             viewbinding: {
-                hideVideo: () => {
+                returnToLastElement: () => {
                     func()
                 }
             }