反応アプリケーションを作成するために create-react-app (typescript) を使用していますが、React コンポーネントをテストするために jest の代わりにモカ + 酵素を使用したいと考えていました。
この前は、このテストスクリプトを使用していました
"test" :"NODE_ENV=development mocha --watch-extensions tsx --watch --require ignore-styles --require babel-core/register ./src/*.test.tsx".
しかし、モカはインポートしている tsx ファイルを理解していません。
テスト スクリプト:
"test": "NODE_ENV=development mocha -r babel-core/register -r ts-node/register src/*.test.tsx".
エラー :
TSError: Γ¿» Unable to compile TypeScript
src\ComponentTest.test.ts (7,34): Parameter 'obj' implicitly has an 'any'
type. (7006)
src\ComponentTest.test.ts (7,237): Property 'default' does not exist on type
'{}'. (2339)
at getOutput (E:\AssetWise\BeConnect_AssetWiseConncet\AssetWiseCONNECT\src\Client\assetwiseconnect\node_modules\ts-node\src\index.ts:330:15)
at Object.compile (E:\AssetWise\BeConnect_AssetWiseConncet\AssetWiseCONNECT\src\Client\assetwiseconnect\node_modules\ts-node\src\index.ts:518:11)
at Module.m._compile (E:\AssetWise\BeConnect_AssetWiseConncet\AssetWiseCONNECT\src\Client\assetwiseconnect\node_modules\ts-node\src\index.ts:403:43)
at loader (E:\AssetWise\BeConnect_AssetWiseConncet\AssetWiseCONNECT\src\Client\assetwiseconnect\node_modules\babel-register\lib\node.js:144:5)
at require.extensions.(anonymous function) (E:\AssetWise\BeConnect_AssetWiseConncet\AssetWiseCONNECT\src\Client\assetwiseconnect\node_modules\babel-register\lib\node.js:154:7)
at Object.require.extensions.(anonymous function) [as .ts] (E:\AssetWise\BeConnect_AssetWiseConncet\AssetWiseCONNECT\src\Client\assetwiseconnect\node_modules\ts-node\src\index.ts:406:12)
at Module.load (module.js:554:32)
at tryModuleLoad (module.js:497:12)
at Function.Module._load (module.js:489:3)
at Module.require (module.js:579:17)
at require (internal/module.js:11:18)
at E:\AssetWise\BeConnect_AssetWiseConncet\AssetWiseCONNECT\src\Client\assetwiseconnect\node_modules\mocha\lib\mocha.js:250:27
at Array.forEach (<anonymous>)
at Mocha.loadFiles (E:\AssetWise\BeConnect_AssetWiseConncet\AssetWiseCONNECT\src\Client\assetwiseconnect\node_modules\mocha\lib\mocha.js:247:14)
at Mocha.run (E:\AssetWise\BeConnect_AssetWiseConncet\AssetWiseCONNECT\src\Client\assetwiseconnect\node_modules\mocha\lib\mocha.js:576:10)
at Object.<anonymous> (E:\AssetWise\BeConnect_AssetWiseConncet\AssetWiseCONNECT\src\Client\assetwiseconnect\node_modules\mocha\bin\_mocha:637:18)
at Module._compile (module.js:635:30)
at Object.Module._extensions..js (module.js:646:10)
at Module.load (module.js:554:32)
at tryModuleLoad (module.js:497:12)
at Function.Module._load (module.js:489:3)
at Function.Module.runMain (module.js:676:10)
at startup (bootstrap_node.js:187:16)
at bootstrap_node.js:608:3
テスト ファイル:
import * as expect from 'chai';
import * as React from 'react';
import * as enzyme from 'enzyme';
import App from './App';
import * as Adapter from 'enzyme-adapter-react-16';
enzyme.configure({adapter : new Adapter()});
describe('simple test with mocha', () => {
it('should pass' , () => {
// tslint:disable-next-line:no-unused-expression
expect.expect(true).to.be.true;
});
});
describe('testing react components', () => {
const wrapper = enzyme.shallow(<App/>);
expect.expect(wrapper.find('div')).to.have.length(1);
});
アプリ コンポーネント:
import * as React from 'react';
import './App.css';
const logo = require('./logo.svg');
class App extends React.Component {
render() {
return (
<div className="App">
<header className="App-header">
<img src={logo} className="App-logo" alt="logo" />
<h1 className="App-title">Welcome to React</h1>
</header>
<Sample/>
</div>
);
}
}
export default App;