javascript - React 测试库:无法更改 Material UI DatePicker 输入值
问题描述
我正在尝试使用 React 测试库更改 Material UI Datepicker Input 的值。但它似乎不适用于fireEvent.change()
.
import React from "react";
import { render, screen, waitFor, fireEvent } from "@testing-library/react";
import MomentUtils from "@date-io/moment";
import { DatePicker, MuiPickersUtilsProvider } from "@material-ui/pickers";
describe("DatePicker", () => {
test("Change datepicker value", async () => {
render(
<MuiPickersUtilsProvider utils={MomentUtils}>
<DatePicker
label="Start Date"
id="startDate"
onChange={(date) => {
return undefined;
}}
value={new Date()}
format={"yyyy/MM/DD"}
/>
</MuiPickersUtilsProvider>
);
const startDateInput = (await screen.findByLabelText("Start Date")) as HTMLInputElement;
screen.debug(startDateInput);
fireEvent.change(startDateInput, { target: { value: "2021/01/01" } });
expect(startDateInput.value).toBe("2021/01/01");
});
以下是开玩笑的报道:
console.log
<input
aria-invalid="false"
class="MuiInputBase-input MuiInput-input"
id="startDate"
readonly=""
type="text"
value="2021/08/01"
/>
expect(received).toBe(expected) // Object.is equality
Expected: "2021/01/01"
Received: "2021/08/27"
任何建议表示赞赏:)
解决方案
DatePicker
默认情况下会打开日历视图并且不允许您提供键盘输入。您需要使用KeyboardDatePicker
.
import React, { useState } from "react";
import { render, screen, fireEvent } from "@testing-library/react";
import DateFnsUtils from "@date-io/date-fns";
import {
KeyboardDatePicker,
MuiPickersUtilsProvider,
} from "@material-ui/pickers";
const DatePickerExample = () => {
const [date, setDate] = useState(new Date());
return (
<MuiPickersUtilsProvider utils={DateFnsUtils}>
<KeyboardDatePicker
clearable
label="Start Date"
id="startDate"
onChange={(date) => {
setDate(date);
}}
value={date}
format={"yyyy/MM/dd"}
/>
</MuiPickersUtilsProvider>
);
};
describe("DatePicker", () => {
test("Change datepicker value", () => {
render(<DatePickerExample />);
const startDateInput = screen.getByLabelText("Start Date");
fireEvent.change(startDateInput, { target: { value: "2021/01/01" } });
expect(startDateInput.value).toBe("2021/01/01");
});
});
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