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react.html
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<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>React Demo</title>
<style media="screen" src="https://unpkg.com/[email protected]/mocha.css"></style>
<script src="https://unpkg.com/babel-standalone@latest/babel.min.js"></script>
<script crossorigin src="https://unpkg.com/react@16/umd/react.production.min.js"></script>
<script crossorigin src="https://unpkg.com/react-dom@16/umd/react-dom.production.min.js"></script>
<script src="https://unpkg.com/[email protected]/chai.js"></script>
<script src="https://unpkg.com/[email protected]/mocha.js"></script>
<style media="screen">
.messageBox {
border: 1px solid;
background-color: #eebbbb;
margin: 1em;
padding: 2em;
}
.error{
border-color: red;
background-color: #eebbbb;
}
.success{
border-color: blue;
background-color: #bbeebb;
}
.hidden{
display: none;
}
</style>
</head>
<body>
<main id="content"></main>
<div id="mocha"></div>
</body>
<script type="text/babel" data-presets="react">
class NameInput extends React.Component {
constructor(props) {
super(props);
this.state ={
message:{
type: undefined,
body: undefined
}
}
//Binding events.
this.buttonClicked = this.buttonClicked.bind(this);
}
buttonClicked(evt){
let name = this.refs.nameInput.value;
this.setState({
message: {
type: name ? "success" : "error",
body: name ? "Welcome to React, "+name : "You must enter a name."
}
});
}
render() {
let msg = this.state.message;
return (
<div>
<label>Name: <input ref="nameInput" type="text" /></label>
<button id="inputButton" onClick={this.buttonClicked}>Click Me</button>
<MessageBox type={msg.type} message={msg.body}/>
</div>
)
}
}
class MessageBox extends React.Component {
render() {
return (
<div class={"messageBox "+ (this.props.type || "hidden")}>
{this.props.message}
</div>
)
}
}
ReactDOM.render(<NameInput/>,document.getElementById('content'));
</script>
<script type="text/babel" data-presets="react">
const assert = chai.assert;
mocha.ui("bdd");
mocha.reporter("html");
describe("Example Tests", ()=>{
it("Proved that math works.", () => {
assert.equal(5,3+2,"Math works.");
assert.notEqual(6,3+2,"Math works.");
});
it("Found our Component", () => {
assert.isDefined(MessageBox, "Our messageBox is defined.");
});
it("Lets test a function.", () => {
let myName = "Ankit";
const greet = (name) => "Hello "+ name + "!";
assert.include(greet(myName),myName,"Greeting includes name.");
});
});
describe("Document Tests..", () => {
it("Render an empty box",()=>{
let msgbox = document.querySelector(".messageBox");
assert.isDefined(msgbox, "MessageBox is in the document.");
assert.include(msgbox.classList.value,"hidden","MessageBox is hidden.");
assert.equal(msgbox.innerText,"","MessageBox is empty.");
});
it("Render a error when name is empty",() => {
let msgbox = document.querySelector(".messageBox");
let button = document.querySelector("#inputButton");
button.click();
assert.include(msgbox.classList.value,"error", "MessageBox is type of error");
});
});
mocha.run()
</script>
</html>