├── .env
├── .gitignore
├── .jshintrc
├── README.md
├── bin
    └── env_setup
├── package-lock.json
├── package.json
├── public
    ├── index.html
    └── manifest.json
└── src
    ├── App.css
    ├── App.js
    ├── App.test.js
    ├── components
        └── kanban-board
        │   ├── index.css
        │   └── index.js
    ├── index.css
    ├── index.js
    └── registerServiceWorker.js


/.env:
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1 | CI=true
2 | 


--------------------------------------------------------------------------------
/.gitignore:
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 1 | # See https://help.github.com/ignore-files/ for more about ignoring files.
 2 | 
 3 | # dependencies
 4 | /node_modules
 5 | 
 6 | # testing
 7 | /coverage
 8 | 
 9 | # production
10 | /build
11 | 
12 | # misc
13 | .DS_Store
14 | .env.local
15 | .env.development.local
16 | .env.test.local
17 | .env.production.local
18 | 
19 | npm-debug.log*
20 | yarn-debug.log*
21 | yarn-error.log*
22 | 
23 | # IDEs and editors
24 | /.idea
25 | .project
26 | .classpath
27 | .c9/
28 | *.launch
29 | .settings/
30 | *.sublime-workspace


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/.jshintrc:
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1 | {
2 |   "node": true,
3 |   "browser": true,
4 |   "esnext": true
5 | }
6 | 


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/README.md:
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 1 | # Kanban Board
 2 | 
 3 | ## Environment 
 4 | 
 5 | - React Version: 16.13.1
 6 | - Node Version: ^12.18.3
 7 | - Default Port: 8000
 8 | 
 9 | ## Application Demo:
10 | 
11 | ![](https://hrcdn.net/s3_pub/istreet-assets/37zptS0rawKe-0opLDKgaA/kanban-easy.gif)
12 | 
13 | ## Functionality Requirements
14 | 
15 | - The component board contains 4 stages of tasks in sequence - 'Backlog', 'To Do', 'Ongoing' and 'Done'.
16 | 
17 | - An array of tasks is passed as a prop to the component.
18 | 
19 | - In every individual stage, the tasks are rendered as a list `<ul>` where each task is a single list item `<li>` which displays the name of the task.
20 |     
21 | - Each task list item has 2 icon buttons at the right -
22 |     1. Back button - This moves the task to the previous stage in sequence, if any. This button is disabled if the task is in the first stage.
23 |     2. Forward button - This moves the task to the next stage in sequence, if any. This button is disabled if the task is in the last stage.
24 | 
25 | - Each task has 2 properties -
26 |     1. name - name of task. This is the unique identification for every task. [STRING] 
27 |     2. stage - stage of task [NUMBER] (0 represents Backlog stage, 1 represents To Do stage, 2 represents Ongoing stage, 3 represents Done stage).
28 | 
29 | 
30 | ## Testing Requirements
31 | 
32 | - `<ul>` for 'Backlog' stage should have the data-test-id attribute 'stage-0'.
33 | - `<ul>` for 'To Do' stage should have the data-test-id attribute 'stage-1'.
34 | - `<ul>` for 'Ongoing' stage should have the data-test-id attribute 'stage-2'.
35 | - `<ul>` for 'Done' stage should have the data-test-id attribute 'stage-3'.
36 | - Every single `<li>` task should have below:
37 |   1. The `<span>` containing the name should have data-test-id attribute 'TASK_NAME-name' where TASK_NAME is the name of the task joined by hyphen symbol. For example, for the task named "task 0", it should be 'task-0-name'. For the task named "abc", it should be 'abc-name'.
38 |   2. The back button should have data-test-id attribute 'TASK_NAME-back' where TASK_NAME is the name of the task joined by hyphen symbol. For example, for the task named "task 0", it should be 'task-0-back'. For the task named "abc", it should be 'abc-back'.
39 |   3. The forward button should have data-test-id attribute 'TASK_NAME-forward' where TASK_NAME is the name of the task joined by hyphen symbol. For example, for the task named "task 0", it should be 'task-0-forward'. For the task named "abc", it should be 'abc-forward'.
40 | 
41 | ## Project Specifications
42 | 
43 | **Read Only Files**
44 | - src/App.test.js
45 | 
46 | **Commands**
47 | - run: 
48 | ```bash
49 | bash bin/env_setup && . $HOME/.nvm/nvm.sh && npm start
50 | ```
51 | - install: 
52 | ```bash
53 | bash bin/env_setup && . $HOME/.nvm/nvm.sh && npm install
54 | ```
55 | - test: 
56 | ```bash
57 | bash bin/env_setup && . $HOME/.nvm/nvm.sh && npm test
58 | ```
59 | 


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/bin/env_setup:
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1 | #!/usr/bin/env bash
2 | 
3 | curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash
4 | export NVM_DIR="$([ -z "${XDG_CONFIG_HOME-}" ] && printf %s "${HOME}/.nvm" || printf %s "${XDG_CONFIG_HOME}/nvm")"
5 | [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm
6 | nvm install v12
7 | nvm use v12
8 | echo "install complete"
9 | exit 0


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/package.json:
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 1 | {
 2 |   "name": "kanban-board-react-easy",
 3 |   "version": "0.1.0",
 4 |   "private": true,
 5 |   "dependencies": {
 6 |     "@testing-library/jest-dom": "^5.11.0",
 7 |     "@testing-library/react": "^10.4.7",
 8 |     "create-react-app": "^3.4.1",
 9 |     "h8k-components": "^1.0.0",
10 |     "h8k-design": "^1.0.16",
11 |     "react": "^16.13.1",
12 |     "react-dom": "^16.13.1",
13 |     "react-scripts": "3.4.1",
14 |     "save": "^2.3.1"
15 |   },
16 |   "scripts": {
17 |     "prestart": "npm install",
18 |     "pretest": "npm install",
19 |     "start": "cross-env HOST=0.0.0.0 PORT=8000 ./node_modules/.bin/react-scripts start",
20 |     "test": "cross-env CI=true ./node_modules/.bin/react-scripts test --verbose --env=jsdom --testResultsProcessor ./node_modules/jest-junit"
21 |   },
22 |   "devDependencies": {
23 |     "chai": "^4.2.0",
24 |     "cross-env": "^7.0.2",
25 |     "expect": "^26.1.0",
26 |     "jest-junit": "^11.1.0",
27 |     "react-test-renderer": "^16.13.1"
28 |   },
29 |   "browserslist": {
30 |     "production": [
31 |       ">0.2%",
32 |       "not dead",
33 |       "not op_mini all"
34 |     ],
35 |     "development": [
36 |       "last 1 chrome version",
37 |       "last 1 firefox version",
38 |       "last 1 safari version"
39 |     ]
40 |   }
41 | }
42 | 


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/public/index.html:
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 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 |   <head>
 4 |     <meta charset="utf-8">
 5 |     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
 6 |     <meta name="theme-color" content="#000000">
 7 |     <!--
 8 |       manifest.json provides metadata used when your web app is added to the
 9 |       homescreen on Android. See https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/
10 |     -->
11 |     <link rel="manifest" href="%PUBLIC_URL%/manifest.json">
12 |     <link rel="shortcut icon" href="https://cdn.jsdelivr.net/npm/h8k-design@latest/dist/assets/favicon.ico">
13 |     <!-- <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons" /> -->
14 |     <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
15 |     <!--
16 |       Notice the use of %PUBLIC_URL% in the tags above.
17 |       It will be replaced with the URL of the `public` folder during the build.
18 |       Only files inside the `public` folder can be referenced from the HTML.
19 | 
20 |       Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
21 |       work correctly both with client-side routing and a non-root public URL.
22 |       Learn how to configure a non-root public URL by running `npm run build`.
23 |     -->
24 |     <title>React App</title>
25 |   </head>
26 |   <body>
27 |     <noscript>
28 |       You need to enable JavaScript to run this app.
29 |     </noscript>
30 |     <div id="root"></div>
31 |     <!--
32 |       This HTML file is a template.
33 |       If you open it directly in the browser, you will see an empty page.
34 | 
35 |       You can add webfonts, meta tags, or analytics to this file.
36 |       The build step will place the bundled scripts into the <body> tag.
37 | 
38 |       To begin the development, run `npm start` or `yarn start`.
39 |       To create a production bundle, use `npm run build` or `yarn build`.
40 |     -->
41 |   </body>
42 | </html>
43 | 


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/public/manifest.json:
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 1 | {
 2 |   "short_name": "React App",
 3 |   "name": "Create React App Sample",
 4 |   "icons": [
 5 |     {
 6 |       "src": "favicon.ico",
 7 |       "sizes": "64x64 32x32 24x24 16x16",
 8 |       "type": "image/x-icon"
 9 |     }
10 |   ],
11 |   "start_url": "./index.html",
12 |   "display": "standalone",
13 |   "theme_color": "#000000",
14 |   "background_color": "#ffffff"
15 | }
16 | 


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/src/App.css:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/gesuvs/hackerrank-challenge-react/374c690417df236cdd72c2a5ba4fcc580b2fcbf1/src/App.css


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/src/App.js:
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 1 | import React, { Component } from 'react';
 2 | import './App.css';
 3 | import KanbanBoard from './components/kanban-board/index.js';
 4 | import 'h8k-components';
 5 | 
 6 | const title = "Kanban Board";
 7 | 
 8 | class App extends Component {
 9 |   render() {
10 |     return (
11 |       <div>
12 |         <h8k-navbar header={title}></h8k-navbar>
13 |         <KanbanBoard tasks={this.props.tasks}/>
14 |       </div>
15 |     );
16 |   }
17 | }
18 | 
19 | export default App;
20 | 


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/src/App.test.js:
--------------------------------------------------------------------------------
  1 | import React from 'react';
  2 | import App from './App';
  3 | import { render, fireEvent, cleanup } from '@testing-library/react';
  4 | 
  5 | import '@testing-library/jest-dom/extend-expect';
  6 | 
  7 | const renderApp = () => render(<App/>);
  8 | 
  9 | afterEach(() => {
 10 | 	cleanup()
 11 | });
 12 | 
 13 | // elements in App by data-testids
 14 | const testIds = {
 15 | 	stages: ['stage-0', 'stage-1', 'stage-2', 'stage-3'],
 16 | };
 17 | 
 18 | test('For each task in stage 0 and stage 1, backward and forward buttons are correctly enabled/disabled', () => {
 19 | 	const tasks = [
 20 | 		{ name: 'task 1', stage: 0 },
 21 | 		{ name: 'task 2', stage: 0 },
 22 | 		{ name: 'task 3', stage: 0 },
 23 | 		{ name: 'task 4', stage: 1 },
 24 | 		{ name: 'task 5', stage: 1 },
 25 | 		{ name: 'task 6', stage: 1 },
 26 | 		{ name: 'task 7', stage: 2 },
 27 | 		{ name: 'task 8', stage: 2 },
 28 | 		{ name: 'task 9', stage: 3 },
 29 | 		{ name: 'task 10', stage: 3 },
 30 | 	];
 31 | 	
 32 | 	const renderApp = () => render(<App tasks={tasks}/>);
 33 |   	const { getByTestId } = renderApp();
 34 | 
 35 | 	const backlogStage = getByTestId(testIds.stages[0]);
 36 |     expect(backlogStage.children.length).toEqual(3);
 37 | 
 38 |     expect(backlogStage.contains(getByTestId('task-1-name'))).toBe(true);
 39 |     expect(backlogStage.contains(getByTestId('task-2-name'))).toBe(true);
 40 |     expect(backlogStage.contains(getByTestId('task-3-name'))).toBe(true);
 41 | 
 42 |     expect(getByTestId('task-1-name').innerHTML).toBe('task 1');
 43 |     expect(getByTestId('task-1-back').hasAttribute('disabled')).toEqual(true);
 44 |     expect(getByTestId('task-1-forward').hasAttribute('disabled')).toBeFalsy();
 45 | 
 46 |     expect(getByTestId('task-2-name').innerHTML).toBe('task 2');
 47 |     expect(getByTestId('task-2-back').hasAttribute('disabled')).toEqual(true);
 48 |     expect(getByTestId('task-2-forward').hasAttribute('disabled')).toBeFalsy();
 49 | 
 50 |     expect(getByTestId('task-3-name').innerHTML).toBe('task 3');
 51 |     expect(getByTestId('task-3-back').hasAttribute('disabled')).toEqual(true);
 52 |     expect(getByTestId('task-3-forward').hasAttribute('disabled')).toBeFalsy();
 53 | 
 54 |     const toDoStage = getByTestId(testIds.stages[1]);
 55 | 
 56 |     expect(toDoStage.children.length).toBe(3);
 57 |     expect(toDoStage.contains(getByTestId('task-4-name'))).toBe(true);
 58 |     expect(toDoStage.contains(getByTestId('task-5-name'))).toBe(true);
 59 |     expect(toDoStage.contains(getByTestId('task-6-name'))).toBe(true);
 60 | 
 61 |     expect(getByTestId('task-4-name').innerHTML).toBe('task 4');
 62 |     expect(getByTestId('task-4-back').hasAttribute('disabled')).toBeFalsy();
 63 |     expect(getByTestId('task-4-forward').hasAttribute('disabled')).toBeFalsy();
 64 | 
 65 |     expect(getByTestId('task-5-name').innerHTML).toBe('task 5');
 66 |     expect(getByTestId('task-5-back').hasAttribute('disabled')).toBeFalsy();
 67 |     expect(getByTestId('task-5-forward').hasAttribute('disabled')).toBeFalsy();
 68 | 
 69 |     expect(getByTestId('task-6-name').innerHTML).toBe('task 6');
 70 |     expect(getByTestId('task-6-back').hasAttribute('disabled')).toBeFalsy();
 71 |     expect(getByTestId('task-6-forward').hasAttribute('disabled')).toBeFalsy();
 72 | });
 73 | 
 74 | test('For each task in stage 2 and stage 3, backward and forward buttons are correctly enabled/disabled', () => {
 75 | 	const tasks = [
 76 | 		{ name: 'task 1', stage: 0 },
 77 | 		{ name: 'task 2', stage: 0 },
 78 | 		{ name: 'task 3', stage: 0 },
 79 | 		{ name: 'task 4', stage: 1 },
 80 | 		{ name: 'task 5', stage: 1 },
 81 | 		{ name: 'task 6', stage: 1 },
 82 | 		{ name: 'task 7', stage: 2 },
 83 | 		{ name: 'task 8', stage: 2 },
 84 | 		{ name: 'task 9', stage: 3 },
 85 | 		{ name: 'task 10', stage: 3 },
 86 | 	];
 87 | 	
 88 | 	const renderApp = () => render(<App tasks={tasks}/>);
 89 |   	const { getByTestId } = renderApp();
 90 | 
 91 | 	const onGoingStage = getByTestId(testIds.stages[2]);
 92 | 
 93 | 	expect(onGoingStage.children.length).toBe(2);
 94 | 	expect(onGoingStage.contains(getByTestId('task-7-name'))).toBe(true);
 95 | 	expect(onGoingStage.contains(getByTestId('task-8-name'))).toBe(true);
 96 | 
 97 | 	expect(getByTestId('task-7-name').innerHTML).toBe('task 7');
 98 | 	expect(getByTestId('task-8-back').hasAttribute('disabled')).toBeFalsy();
 99 | 	expect(getByTestId('task-8-forward').hasAttribute('disabled')).toBeFalsy();
100 | 
101 | 	expect(getByTestId('task-8-name').innerHTML).toBe('task 8');
102 | 	expect(getByTestId('task-8-back').hasAttribute('disabled')).toBeFalsy();
103 | 	expect(getByTestId('task-8-forward').hasAttribute('disabled')).toBeFalsy();
104 | 
105 | 	const doneStage = getByTestId(testIds.stages[3]);
106 | 
107 | 	expect(doneStage.children.length).toBe(2);
108 | 	expect(doneStage.contains(getByTestId('task-9-name'))).toBe(true);
109 | 	expect(doneStage.contains(getByTestId('task-10-name'))).toBe(true);
110 | 
111 | 	expect(getByTestId('task-9-name').innerHTML).toBe('task 9');
112 | 	expect(getByTestId('task-9-back').hasAttribute('disabled')).toBeFalsy();
113 | 	expect(getByTestId('task-9-forward').hasAttribute('disabled')).toEqual(true);
114 | 
115 | 	expect(getByTestId('task-10-name').innerHTML).toBe('task 10');
116 | 	expect(getByTestId('task-10-back').hasAttribute('disabled')).toBeFalsy();
117 | 	expect(getByTestId('task-10-forward').hasAttribute('disabled')).toEqual(true);
118 | });
119 | 
120 | test('For a task in stage 0, can be moved forward till stage 4 and buttons are correctly enabled and disabled in stage 4', () => {
121 | 	const tasks = [
122 | 		{ name: 'task 1', stage: 0 },
123 | 		{ name: 'task 2', stage: 0 },
124 | 		{ name: 'task 3', stage: 0 },
125 | 		{ name: 'task 4', stage: 1 },
126 | 		{ name: 'task 5', stage: 1 },
127 | 		{ name: 'task 6', stage: 1 },
128 | 		{ name: 'task 7', stage: 2 },
129 | 		{ name: 'task 8', stage: 2 },
130 | 		{ name: 'task 9', stage: 3 },
131 | 		{ name: 'task 10', stage: 3 },
132 | 	];
133 | 	
134 | 	const renderApp = () => render(<App tasks={tasks}/>);
135 | 	const { getByTestId } = renderApp();
136 | 
137 | 	const backlogStage = getByTestId(testIds.stages[0]);
138 | 	const toDoStage = getByTestId(testIds.stages[1]);
139 | 	const onGoingStage = getByTestId(testIds.stages[2]);
140 | 	const doneStage = getByTestId(testIds.stages[3]);
141 | 
142 | 	const taskName = 'task 1';
143 |     const taskId = `${taskName.split(' ').join('-')}-name`;
144 |     const taskForwardIconId = `${taskName.split(' ').join('-')}-forward`;
145 | 
146 |     expect(backlogStage.contains(getByTestId(taskId))).toBe(true);
147 |     expect(toDoStage.contains(getByTestId(taskId))).toBe(false);
148 |     expect(onGoingStage.contains(getByTestId(taskId))).toBe(false);
149 |     expect(doneStage.contains(getByTestId(taskId))).toBe(false);
150 | 
151 | 	fireEvent.click(getByTestId(taskForwardIconId));
152 | 
153 |     expect(backlogStage.contains(getByTestId(taskId))).toBe(false);
154 |     expect(toDoStage.contains(getByTestId(taskId))).toBe(true);
155 |     expect(onGoingStage.contains(getByTestId(taskId))).toBe(false);
156 |     expect(doneStage.contains(getByTestId(taskId))).toBe(false);
157 | 
158 |     fireEvent.click(getByTestId(taskForwardIconId));
159 | 
160 |     expect(backlogStage.contains(getByTestId(taskId))).toBe(false);
161 |     expect(toDoStage.contains(getByTestId(taskId))).toBe(false);
162 |     expect(onGoingStage.contains(getByTestId(taskId))).toBe(true);
163 |     expect(doneStage.contains(getByTestId(taskId))).toBe(false);
164 | 
165 | 	fireEvent.click(getByTestId(taskForwardIconId));
166 | 	
167 |     expect(backlogStage.contains(getByTestId(taskId))).toBe(false);
168 |     expect(toDoStage.contains(getByTestId(taskId))).toBe(false);
169 |     expect(onGoingStage.contains(getByTestId(taskId))).toBe(false);
170 |     expect(doneStage.contains(getByTestId(taskId))).toBe(true);
171 |     expect(getByTestId('task-1-back').hasAttribute('disabled')).toBeFalsy();
172 |     expect(getByTestId('task-1-forward').hasAttribute('disabled')).toEqual(true);
173 | });
174 | 
175 | test('For a task in stage 4, can be moved backward till stage 0 and check for buttons are enabled/disabled correctly', () => {
176 | 	const tasks = [
177 | 		{ name: 'task 1', stage: 0 },
178 | 		{ name: 'task 2', stage: 0 },
179 | 		{ name: 'task 3', stage: 0 },
180 | 		{ name: 'task 4', stage: 1 },
181 | 		{ name: 'task 5', stage: 1 },
182 | 		{ name: 'task 6', stage: 1 },
183 | 		{ name: 'task 7', stage: 2 },
184 | 		{ name: 'task 8', stage: 2 },
185 | 		{ name: 'task 9', stage: 3 },
186 | 		{ name: 'task 10', stage: 3 },
187 | 	];
188 | 	
189 | 	const renderApp = () => render(<App tasks={tasks}/>);
190 | 	const { getByTestId } = renderApp();
191 | 
192 | 	const backlogStage = getByTestId(testIds.stages[0]);
193 | 	const toDoStage = getByTestId(testIds.stages[1]);
194 | 	const onGoingStage = getByTestId(testIds.stages[2]);
195 | 	const doneStage = getByTestId(testIds.stages[3]);
196 | 
197 | 	const taskName = 'task 9';
198 |     const taskId = `${taskName.split(' ').join('-')}-name`;
199 | 	const taskBackIconId = `${taskName.split(' ').join('-')}-back`;
200 | 	
201 | 	expect(backlogStage.contains(getByTestId(taskId))).toBe(false);
202 |     expect(toDoStage.contains(getByTestId(taskId))).toBe(false);
203 |     expect(onGoingStage.contains(getByTestId(taskId))).toBe(false);
204 |     expect(doneStage.contains(getByTestId(taskId))).toBe(true);
205 | 
206 | 	fireEvent.click(getByTestId(taskBackIconId));
207 | 
208 |     expect(backlogStage.contains(getByTestId(taskId))).toBe(false);
209 |     expect(toDoStage.contains(getByTestId(taskId))).toBe(false);
210 |     expect(onGoingStage.contains(getByTestId(taskId))).toBe(true);
211 |     expect(doneStage.contains(getByTestId(taskId))).toBe(false);
212 | 
213 |     fireEvent.click(getByTestId(taskBackIconId));
214 | 
215 |     expect(backlogStage.contains(getByTestId(taskId))).toBe(false);
216 |     expect(toDoStage.contains(getByTestId(taskId))).toBe(true);
217 |     expect(onGoingStage.contains(getByTestId(taskId))).toBe(false);
218 |     expect(doneStage.contains(getByTestId(taskId))).toBe(false);
219 | 
220 | 	fireEvent.click(getByTestId(taskBackIconId));
221 | 	
222 |     expect(backlogStage.contains(getByTestId(taskId))).toBe(true);
223 |     expect(toDoStage.contains(getByTestId(taskId))).toBe(false);
224 |     expect(onGoingStage.contains(getByTestId(taskId))).toBe(false);
225 |     expect(doneStage.contains(getByTestId(taskId))).toBe(false);
226 | 
227 |     expect(getByTestId('task-9-back').hasAttribute('disabled')).toEqual(true);
228 |     expect(getByTestId('task-1-forward').hasAttribute('disabled')).toBeFalsy();
229 | 
230 | });
231 | 
232 | test('after many forward and back operations, tasks are in correct state', () => {
233 | 	const tasks = [
234 | 		{ name: 'task 1', stage: 0 },
235 | 		{ name: 'task 2', stage: 0 },
236 | 		{ name: 'task 3', stage: 0 },
237 | 		{ name: 'task 4', stage: 1 },
238 | 		{ name: 'task 5', stage: 1 },
239 | 		{ name: 'task 6', stage: 1 },
240 | 		{ name: 'task 7', stage: 2 },
241 | 		{ name: 'task 8', stage: 2 },
242 | 		{ name: 'task 9', stage: 3 },
243 | 		{ name: 'task 10', stage: 3 },
244 | 	];
245 | 	
246 | 	const renderApp = () => render(<App tasks={tasks}/>);
247 | 	const { getByTestId } = renderApp();
248 | 
249 | 	fireEvent.click(getByTestId(`task-1-forward`));
250 | 	fireEvent.click(getByTestId(`task-2-forward`));
251 | 	fireEvent.click(getByTestId(`task-4-forward`));
252 | 	fireEvent.click(getByTestId(`task-5-forward`));
253 | 	fireEvent.click(getByTestId(`task-6-back`));
254 | 	fireEvent.click(getByTestId(`task-7-forward`));
255 | 	fireEvent.click(getByTestId(`task-8-back`));
256 | 	fireEvent.click(getByTestId(`task-9-back`));
257 | 	fireEvent.click(getByTestId(`task-10-back`));
258 | 
259 | 	const backlogStage = getByTestId(testIds.stages[0]);
260 | 	const toDoStage = getByTestId(testIds.stages[1]);
261 | 	const onGoingStage = getByTestId(testIds.stages[2]);
262 | 	const doneStage = getByTestId(testIds.stages[3]);
263 | 	
264 | 	expect(backlogStage.children.length).toBe(2);
265 |     expect(backlogStage.contains(getByTestId('task-3-name'))).toBe(true);
266 |     expect(backlogStage.contains(getByTestId('task-6-name'))).toBe(true);
267 | 
268 |     expect(toDoStage.children.length).toBe(3);
269 |     expect(toDoStage.contains(getByTestId('task-1-name'))).toBe(true);
270 |     expect(toDoStage.contains(getByTestId('task-2-name'))).toBe(true);
271 |     expect(toDoStage.contains(getByTestId('task-8-name'))).toBe(true);
272 | 
273 |     expect(onGoingStage.children.length).toBe(4);
274 |     expect(onGoingStage.contains(getByTestId('task-4-name'))).toBe(true);
275 |     expect(onGoingStage.contains(getByTestId('task-5-name'))).toBe(true);
276 |     expect(onGoingStage.contains(getByTestId('task-9-name'))).toBe(true);
277 |     expect(onGoingStage.contains(getByTestId('task-10-name'))).toBe(true);
278 | 
279 |     expect(doneStage.children.length).toBe(1);
280 |     expect(doneStage.contains(getByTestId('task-7-name'))).toBe(true);
281 | });


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/src/components/kanban-board/index.css:
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 1 | .card {
 2 |     transition: height 0.5s ease-in-out;
 3 |     will-change: height;
 4 | }
 5 | 
 6 | .card-text {
 7 |     min-width: 236px;
 8 |     min-height: 350px;
 9 | }
10 | 
11 | h4 {
12 |     display: flex;
13 |     justify-content: center;
14 | }
15 | 
16 | ul {
17 |     padding-left: 0px;
18 |   }
19 | 
20 | .li-content {
21 | height: 25px;
22 | }


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/src/components/kanban-board/index.js:
--------------------------------------------------------------------------------
  1 | import React, { Component } from "react";
  2 | import "./index.css";
  3 | 
  4 | export default class KanbanBoard extends Component {
  5 |   constructor(props) {
  6 |     super(props);
  7 |     this.state = {
  8 |       tasks: [
  9 |         { name: 'task 0', stage: 0 },
 10 |         { name: 'task 1', stage: 0 },
 11 |         { name: 'task 2', stage: 0 },
 12 |         { name: 'task 3', stage: 0 },
 13 |         { name: 'task 4', stage: 1 },
 14 |         { name: 'task 5', stage: 1 },
 15 |         { name: 'task 6', stage: 1 },
 16 |         { name: 'task 7', stage: 2 },
 17 |         { name: 'task 8', stage: 2 },
 18 |         { name: 'task 9', stage: 3 },
 19 |       ]
 20 |     };
 21 |     this.stagesNames = ['Backlog', 'To Do', 'Ongoing', 'Done'];
 22 |   }
 23 | 
 24 |   componentDidMount(){
 25 |     console.log()
 26 |   }
 27 | 
 28 |   moveToForward = (task) => {
 29 |     const stateCopy = [...this.state.tasks];
 30 |     const [_, index] = task.name.split(" ");
 31 | 
 32 |     for (const s in stateCopy) {
 33 |       if (Number(s) === Number(index)) {
 34 |         task.stage += 1
 35 |       }
 36 |     }
 37 | 
 38 |     stateCopy[index] = task;
 39 |     this.setState({
 40 |       tasks: stateCopy
 41 |     })
 42 |   }
 43 | 
 44 |   moveToBack = (task) => {
 45 |     const stateCopy = [...this.state.tasks];
 46 |     const [_, index] = task.name.split(" ");
 47 | 
 48 |     for (const s in stateCopy) {
 49 |       if (Number(s) === Number(index)) {
 50 |         task.stage -= 1
 51 |       }
 52 |     }
 53 | 
 54 |     stateCopy[index] = task;
 55 |     this.setState({
 56 |       tasks: stateCopy
 57 |     })
 58 |   }
 59 | 
 60 | 
 61 | 
 62 |   render() {
 63 |     const { tasks } = this.state;
 64 | 
 65 |     let stagesTasks = [];
 66 |     for (let i = 0; i < this.stagesNames.length; ++i) {
 67 |       stagesTasks.push([]);
 68 |     }
 69 |     for (let task of tasks) {
 70 |       const stageId = task.stage;
 71 |       stagesTasks[stageId].push(task);
 72 |     }
 73 | 
 74 | 
 75 |     return (
 76 |       <div className="mt-20 layout-column justify-content-center align-items-center">
 77 |         <div className="mt-50 layout-row">
 78 |           {stagesTasks.map((tasks, i) => {
 79 |             return (
 80 |               <div className="card outlined ml-20 mt-0" key={`${i}`}>
 81 |                 <div className="card-text">
 82 |                   <h4>{this.stagesNames[i]}</h4>
 83 |                   <ul className="styled mt-50" data-testid={`stage-${i}`}>
 84 |                     {tasks.map((task, index) => {
 85 |                       return <li className="slide-up-fade-in" key={`${i}${index}`}>
 86 |                         <div className="li-content layout-row justify-content-between align-items-center">
 87 |                           <span data-testid={`${task.name.split(' ').join('-')}-name`}>{task.name}</span>
 88 |                           <div className="icons">
 89 |                             <button disabled={task.stage === Math.min(this.stagesNames[0].stage)} onClick={() => this.moveToBack(task)} className="icon-only x-small mx-2" data-testid={`${task.name.split(' ').join('-')}-back`}>
 90 |                               <i className="material-icons">arrow_back</i>
 91 |                             </button>
 92 |                             <button disabled={task.stage === Math.max(this.stagesNames[this.stagesNames.length-1].stage)} onClick={() => this.moveToForward(task)} className="icon-only x-small mx-2" data-testid={`${task.name.split(' ').join('-')}-forward`}>
 93 |                               <i className="material-icons">arrow_forward</i>
 94 |                             </button>
 95 |                           </div>
 96 |                         </div>
 97 |                       </li>
 98 |                     })}
 99 |                   </ul>
100 |                 </div>
101 |               </div>
102 |             )
103 |           })}
104 |         </div>
105 |       </div>
106 |     );
107 |   }
108 | }


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/src/index.css:
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1 | @import '../node_modules/h8k-design/dist/index.css';
2 | 


--------------------------------------------------------------------------------
/src/index.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import ReactDOM from 'react-dom';
 3 | import './index.css';
 4 | import App from './App';
 5 | import registerServiceWorker from './registerServiceWorker';
 6 | import {applyPolyfills, defineCustomElements} from 'h8k-components/loader';
 7 | 
 8 | 
 9 | 
10 | ReactDOM.render(<App/>, document.getElementById('root'));
11 | registerServiceWorker();
12 | 
13 | applyPolyfills().then(() => {
14 |     defineCustomElements(window);
15 | })


--------------------------------------------------------------------------------
/src/registerServiceWorker.js:
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  1 | // In production, we register a service worker to serve assets from local cache.
  2 | 
  3 | // This lets the app load faster on subsequent visits in production, and gives
  4 | // it offline capabilities. However, it also means that developers (and users)
  5 | // will only see deployed updates on the "N+1" visit to a page, since previously
  6 | // cached resources are updated in the background.
  7 | 
  8 | // To learn more about the benefits of this model, read https://goo.gl/KwvDNy.
  9 | // This link also includes instructions on opting out of this behavior.
 10 | 
 11 | const isLocalhost = Boolean(
 12 |   window.location.hostname === 'localhost' ||
 13 |     // [::1] is the IPv6 localhost address.
 14 |     window.location.hostname === '[::1]' ||
 15 |     // 127.0.0.1/8 is considered localhost for IPv4.
 16 |     window.location.hostname.match(
 17 |       /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
 18 |     )
 19 | );
 20 | 
 21 | export default function register() {
 22 |   if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
 23 |     // The URL constructor is available in all browsers that support SW.
 24 |     const publicUrl = new URL(process.env.PUBLIC_URL, window.location);
 25 |     if (publicUrl.origin !== window.location.origin) {
 26 |       // Our service worker won't work if PUBLIC_URL is on a different origin
 27 |       // from what our page is served on. This might happen if a CDN is used to
 28 |       // serve assets; see https://github.com/facebookincubator/create-react-app/issues/2374
 29 |       return;
 30 |     }
 31 | 
 32 |     window.addEventListener('load', () => {
 33 |       const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
 34 | 
 35 |       if (isLocalhost) {
 36 |         // This is running on localhost. Lets check if a service worker still exists or not.
 37 |         checkValidServiceWorker(swUrl);
 38 | 
 39 |         // Add some additional logging to localhost, pointing developers to the
 40 |         // service worker/PWA documentation.
 41 |         navigator.serviceWorker.ready.then(() => {
 42 |           console.log(
 43 |             'This web app is being served cache-first by a service ' +
 44 |               'worker. To learn more, visit https://goo.gl/SC7cgQ'
 45 |           );
 46 |         });
 47 |       } else {
 48 |         // Is not local host. Just register service worker
 49 |         registerValidSW(swUrl);
 50 |       }
 51 |     });
 52 |   }
 53 | }
 54 | 
 55 | function registerValidSW(swUrl) {
 56 |   navigator.serviceWorker
 57 |     .register(swUrl)
 58 |     .then(registration => {
 59 |       registration.onupdatefound = () => {
 60 |         const installingWorker = registration.installing;
 61 |         installingWorker.onstatechange = () => {
 62 |           if (installingWorker.state === 'installed') {
 63 |             if (navigator.serviceWorker.controller) {
 64 |               // At this point, the old content will have been purged and
 65 |               // the fresh content will have been added to the cache.
 66 |               // It's the perfect time to display a "New content is
 67 |               // available; please refresh." message in your web app.
 68 |               console.log('New content is available; please refresh.');
 69 |             } else {
 70 |               // At this point, everything has been precached.
 71 |               // It's the perfect time to display a
 72 |               // "Content is cached for offline use." message.
 73 |               console.log('Content is cached for offline use.');
 74 |             }
 75 |           }
 76 |         };
 77 |       };
 78 |     })
 79 |     .catch(error => {
 80 |       console.error('Error during service worker registration:', error);
 81 |     });
 82 | }
 83 | 
 84 | function checkValidServiceWorker(swUrl) {
 85 |   // Check if the service worker can be found. If it can't reload the page.
 86 |   fetch(swUrl)
 87 |     .then(response => {
 88 |       // Ensure service worker exists, and that we really are getting a JS file.
 89 |       if (
 90 |         response.status === 404 ||
 91 |         response.headers.get('content-type').indexOf('javascript') === -1
 92 |       ) {
 93 |         // No service worker found. Probably a different app. Reload the page.
 94 |         navigator.serviceWorker.ready.then(registration => {
 95 |           registration.unregister().then(() => {
 96 |             window.location.reload();
 97 |           });
 98 |         });
 99 |       } else {
100 |         // Service worker found. Proceed as normal.
101 |         registerValidSW(swUrl);
102 |       }
103 |     })
104 |     .catch(() => {
105 |       console.log(
106 |         'No internet connection found. App is running in offline mode.'
107 |       );
108 |     });
109 | }
110 | 
111 | export function unregister() {
112 |   if ('serviceWorker' in navigator) {
113 |     navigator.serviceWorker.ready.then(registration => {
114 |       registration.unregister();
115 |     });
116 |   }
117 | }
118 | 


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