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import { createElement, render, Component } from 'preact';
import 'preact/debug';
import { setupScratch, teardown } from '../../../test/_util/helpers';
/** @jsx createElement */
// This test is not part of component-stack.test.js to avoid it being
// transpiled with '@babel/plugin-transform-react-jsx-source' enabled.
describe('component stack', () => {
/** @type {HTMLDivElement} */
let scratch;
let errors = [];
let warnings = [];
beforeEach(() => {
scratch = setupScratch();
errors = [];
warnings = [];
sinon.stub(console, 'error').callsFake(e => errors.push(e));
sinon.stub(console, 'warn').callsFake(w => warnings.push(w));
});
afterEach(() => {
console.error.restore();
console.warn.restore();
teardown(scratch);
});
it('should print a warning when "@babel/plugin-transform-react-jsx-source" is not installed', () => {
function Foo() {
return <Thrower />;
}
class Thrower extends Component {
constructor(props) {
super(props);
this.setState({ foo: 1 });
}
render() {
return <div>foo</div>;
}
}
render(<Foo />, scratch);
expect(
warnings[0].indexOf('@babel/plugin-transform-react-jsx-source') > -1
).to.equal(true);
});
});
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