element-web/test/components/views/elements/PowerSelector-test.tsx
David Langley 491f0cd08a
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2024-09-09 13:57:16 +00:00

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TypeScript

/*
Copyright 2024 New Vector Ltd.
Copyright 2022 The Matrix.org Foundation C.I.C.
SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
Please see LICENSE files in the repository root for full details.
*/
import React from "react";
import { fireEvent, render, screen } from "@testing-library/react";
import { defer } from "matrix-js-sdk/src/utils";
import PowerSelector from "../../../../src/components/views/elements/PowerSelector";
describe("<PowerSelector />", () => {
it("should reset back to custom value when custom input is blurred blank", async () => {
const fn = jest.fn();
render(<PowerSelector value={25} maxValue={100} usersDefault={0} onChange={fn} />);
const input = screen.getByLabelText("Power level");
fireEvent.change(input, { target: { value: "" } });
fireEvent.blur(input);
await screen.findByDisplayValue(25);
expect(fn).not.toHaveBeenCalled();
});
it("should reset back to preset value when custom input is blurred blank", async () => {
const fn = jest.fn();
render(<PowerSelector value={50} maxValue={100} usersDefault={0} onChange={fn} />);
const select = screen.getByLabelText("Power level");
fireEvent.change(select, { target: { value: "SELECT_VALUE_CUSTOM" } });
const input = screen.getByLabelText("Power level");
fireEvent.change(input, { target: { value: "" } });
fireEvent.blur(input);
const option = await screen.findByText<HTMLOptionElement>("Moderator");
expect(option.selected).toBeTruthy();
expect(fn).not.toHaveBeenCalled();
});
it("should call onChange when custom input is blurred with a number in it", async () => {
const fn = jest.fn();
render(<PowerSelector value={25} maxValue={100} usersDefault={0} onChange={fn} powerLevelKey="key" />);
const input = screen.getByLabelText("Power level");
fireEvent.change(input, { target: { value: 40 } });
fireEvent.blur(input);
await screen.findByDisplayValue(40);
expect(fn).toHaveBeenCalledWith(40, "key");
});
it("should reset when props get changed", async () => {
const fn = jest.fn();
const { rerender } = render(<PowerSelector value={50} maxValue={100} usersDefault={0} onChange={fn} />);
const select = screen.getByLabelText("Power level");
fireEvent.change(select, { target: { value: "SELECT_VALUE_CUSTOM" } });
rerender(<PowerSelector value={51} maxValue={100} usersDefault={0} onChange={fn} />);
await screen.findByDisplayValue(51);
rerender(<PowerSelector value={50} maxValue={100} usersDefault={0} onChange={fn} />);
const option = await screen.findByText<HTMLOptionElement>("Moderator");
expect(option.selected).toBeTruthy();
expect(fn).not.toHaveBeenCalled();
});
it("should reset when onChange promise rejects", async () => {
const deferred = defer<void>();
render(
<PowerSelector
value={25}
maxValue={100}
usersDefault={0}
onChange={() => deferred.promise}
powerLevelKey="key"
/>,
);
const input = screen.getByLabelText("Power level");
fireEvent.change(input, { target: { value: 40 } });
fireEvent.blur(input);
await screen.findByDisplayValue(40);
deferred.reject("Some error");
await screen.findByDisplayValue(25);
});
});