React测试库:无法选择资料UI DatePicker按钮
React测试库:无法选择资料UI DatePicker按钮
提问于 2020-05-22 13:45:23
我有一个React组件，它是围绕Material的KeyboardDatePicker的一个薄包装器。我正在尝试使用为其编写测试。我遇到的问题是我无法选择用来打开日历的按钮。我尝试过几个不同的问题。我还使用了debug()来确认按钮确实正在呈现。
以下是组件：
import React from 'react'
import MomentUtils from '@date-io/moment'
import {
KeyboardDatePicker,
MuiPickersUtilsProvider,
} from '@material-ui/pickers'
import { StyledDatePickerWrap } from './style'
const DatePicker = (props) => {
const {
handleDateChange,
label,
selectedDate,
disableFuture,
disablePast,
variant,
} = props
return (
<StyledDatePickerWrap>
<MuiPickersUtilsProvider utils={MomentUtils}>
<KeyboardDatePicker
disableFuture={disableFuture}
disablePast={disablePast}
label={label}
value={selectedDate}
variant={variant}
onChange={handleDateChange}
InputProps={{
disableUnderline: true,
}}
KeyboardButtonProps={{
'aria-label': 'change date',
'data-testid': 'changeDate',
}}
/>
</MuiPickersUtilsProvider>
</StyledDatePickerWrap>
)
}
DatePicker.defaultProps = {
variant: 'dialog',
disableFuture: true,
disablePast: false,
}
export default DatePicker下面是测试规范：
import React from 'react'
import { render, fireEvent } from 'Utils/test-utils'
import moment from 'moment'
import DatePicker from './DatePicker'
describe('DatePicker', () => {
const handleDateChange = jest.fn()
const selectedDate = moment('2020-05-21T19:25:00.000Z')
const props = {
handleDateChange,
selectedDate,
}
const { debug, queryByDisplayValue, getByTestId, queryByText } = render(
<DatePicker {...props} />
)
debug()
it('should render the correct Date', () => {
expect(queryByDisplayValue(/May 21st/)).not.toBeNull()
})
it('should render the "change date" button', () => {
// why can't I select this button?
// I've also tried by getByLabelText('change date') and even container.querySelector('button')
const button = getByTestId('changeDate')
fireEvent.click(button)
expect(queryByText('Thu, May 21')).not.toBeNull()
})
})下面是测试错误：
● DatePicker › should render the "change date" button
TestingLibraryElementError: Unable to find an element by: [data-testid="changeDate"]
<body />
26 | // why can't I select this button?
27 | // I've also tried by getByLabelText('change date') and even container.querySelector('button')
> 28 | const button = getByTestId('changeDate')
| ^
29 | fireEvent.click(button)
30 | expect(queryByText('Thu, May 21')).not.toBeNull()
31 | })
at Object.getElementError (node_modules/@testing-library/dom/dist/config.js:32:19)
at node_modules/@testing-library/dom/dist/query-helpers.js:76:38
at getByTestId (node_modules/@testing-library/dom/dist/query-helpers.js:59:17)
at Object.<anonymous> (src/Components/CaseManagement/DatePicker/DatePicker.spec.js:28:20)以下是调试调用的控制台输出：
● Console
console.log node_modules/@testing-library/react/dist/pure.js:94
<body>
<div>
<div
class="sc-bdVaJa eYAdNP"
>
<div
class="MuiFormControl-root MuiTextField-root"
>
<div
class="MuiInputBase-root MuiInput-root MuiInputBase-formControl MuiInput-formControl MuiInputBase-adornedEnd"
>
<input
aria-invalid="false"
class="MuiInputBase-input MuiInput-input MuiInputBase-inputAdornedEnd"
type="text"
value="May 21st"
/>
<div
class="MuiInputAdornment-root MuiInputAdornment-positionEnd"
>
<button
aria-label="change date"
class="MuiButtonBase-root MuiIconButton-root"
data-testid="changeDate"
tabindex="0"
type="button"
>
<span
class="MuiIconButton-label"
>
<svg
aria-hidden="true"
class="MuiSvgIcon-root"
focusable="false"
viewBox="0 0 24 24"
>
<path
d="M17 12h-5v5h5v-5zM16 1v2H8V1H6v2H5c-1.11 0-1.99.9-1.99 2L3 19c0 1.1.89 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2h-1V1h-2zm3 18H5V8h14v11z"
/>
<path
d="M0 0h24v24H0z"
fill="none"
/>
</svg>
</span>
<span
class="MuiTouchRipple-root"
/>
</button>
</div>
</div>
</div>
</div>
</div>
</body>注意到与debug()输出有关的以下：
- 按钮确实出现了，它有一个
data-testid和一个aria-label，这两个都不像data-testid那样工作--奇怪的格式设置-->和/>在HTML标记中的断行。这正常吗？也许这就是更大问题的症状？？
。
一如既往，提前感谢您！
回答 2
Stack Overflow用户
发布于 2020-12-29 18:16:34
你可以试试@aquinq发布的内容。我正在使用和你类似的代码，它起作用了：
这是TypeScript中的内容:我们在KeyboardButtonProps中设置了data-testid，如下所示：
<KeyboardDatePicker
{...props}
className={cls(styles.root, props.className)}
label="Fecha"
// https://github.com/mui-org/material-ui-pickers/issues/1651#issuecomment-614315006
autoOk={true}
variant="inline"
format="dd/MM/yyyy"
margin="normal"
id="date-picker-inline"
value={selectedDate}
name={name}
onChange={handleDateChange}
disablePast={disablePast}
disableFuture={disableFuture}
shouldDisableDate={shouldDisableDate}
KeyboardButtonProps={{
"aria-label": "change date",
...({ ["data-testid"]: "js-datepicker" } as any),
}}
InputLabelProps={{ shrink: true }}
/>我就是这样测试的：
describe("Tests the Anonymous version of the triage", () => {
it("Happy Path of the Triage will be completed successfully", async () => {
// The Triage Component has the <KeyboardDatePicker rendered inside it.
const renderer = await render(<Triage variant="ANONYMOUS" />);
const calendar = await waitFor(async () => renderer.getByTestId(FECHA));
await fireEvent.click(calendar);
// We get the 22nd day of the month:
const day = await waitFor(async () => renderer.getByText("22"));
// I'm wrapping
await act(async () => {
await fireEvent.click(day);
await fireEvent.click(continueBtn);
});
});
});Stack Overflow用户
发布于 2020-05-22 21:53:51
你试过等元素吗？
const button = await waitForElement(() => getByTestId('changeDate'))页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/61956478
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