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即使我使用afterEach,我仍然得到以下错误:试图包装已经包裹的setTimeout.What我做错了吗?我正在使用ava来做这个单元测试。我试图创建的测试非常简单。它几乎检查渲染和点击操作。还有一个测试来检查setTimeOut函数是否被调用了正确的参数。使用Ava进行React单元测试:为什么函数已经打包?
import test from 'ava';
import React from 'react';
import { CartMessage } from 'components/Cart/CartMessage';
import { shallow, mount } from 'enzyme';
import { spy, stub } from 'sinon';
let props;
let popError;
let cartmessage;
let timeoutSpy;
test.beforeEach(() => {
props = {
message: 'testing',
count: 2,
popError: stub().returns(Promise.resolve()),
};
cartmessage = shallow(<CartMessage {...props}/>)
timeoutSpy = spy(window, 'setTimeout');
});
test.afterEach(()=>{
timeoutSpy.restore()
})
test('renders okay?', (t) => {
t.truthy(Cartmessage)
});
test('componentDidMount calls setTimeout with proper args', t => {
t.true(timeoutSpy.calledWithExactly(() => this.setState({ MessageOpen: true }), 1))
})
test('onClose called?', t => {
const wrapper = shallow(<CartMessage {...props} />);
wrapper.find('i').simulate('click');
t.true(timeoutSpy.calledWithExactly(this.props.popError, 1))
})
test('timeout i called with the right args', (t) => {
t.true(timeoutSpy.calledWithExactly(this.props.popError, 1));
})