element-web/test/components/views/settings/FontScalingPanel-test.tsx
Michael Telatynski d2066ba5f5
Improve accessibility of font slider (#10473)
* Clamp font size when disabling "Use custom size"

* Switch Slider to use a semantic input range element

* Iterate

* delint

* delint

* snapshot

* Iterate

* Iterate

* Fix step size

* Add focus outline to slider

* Derp
2023-04-12 10:57:31 +00:00

52 lines
2 KiB
TypeScript

/*
Copyright 2021 The Matrix.org Foundation C.I.C.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import React from "react";
import { fireEvent, render, waitFor } from "@testing-library/react";
import * as TestUtils from "../../../test-utils";
import FontScalingPanel from "../../../../src/components/views/settings/FontScalingPanel";
import SettingsStore from "../../../../src/settings/SettingsStore";
// Fake random strings to give a predictable snapshot
jest.mock("matrix-js-sdk/src/randomstring", () => {
return {
randomString: () => "abdefghi",
};
});
describe("FontScalingPanel", () => {
it("renders the font scaling UI", () => {
TestUtils.stubClient();
const { asFragment } = render(<FontScalingPanel />);
expect(asFragment()).toMatchSnapshot();
});
it("should clamp custom font size when disabling it", async () => {
jest.spyOn(SettingsStore, "setValue").mockResolvedValue(undefined);
TestUtils.stubClient();
const { container, getByText } = render(<FontScalingPanel />);
fireEvent.click(getByText("Use custom size"));
await waitFor(() => {
expect(container.querySelector("input[checked]")).toBeDefined();
});
fireEvent.change(container.querySelector("#font_size_field")!, { target: { value: "20" } });
fireEvent.click(getByText("Use custom size"));
await waitFor(() => {
expect(container.querySelector("#font_size_field")).toHaveValue(18);
});
});
});