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https://github.com/vector-im/element-call.git
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106 lines
3.1 KiB
TypeScript
106 lines
3.1 KiB
TypeScript
/*
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Copyright 2024 New Vector Ltd.
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SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
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Please see LICENSE in the repository root for full details.
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*/
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import { act, renderHook } from "@testing-library/react";
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import {
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afterEach,
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beforeEach,
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describe,
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expect,
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type Mock,
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test,
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vi,
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} from "vitest";
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import EventEmitter from "events";
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import { WidgetApiToWidgetAction } from "matrix-widget-api";
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import { useTheme } from "./useTheme";
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import { getUrlParams } from "./UrlParams";
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import { widget } from "./widget";
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vi.mock("./UrlParams", () => ({ getUrlParams: vi.fn() }));
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vi.mock("./widget", () => ({
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widget: {
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api: { transport: { reply: vi.fn() } },
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lazyActions: new EventEmitter(),
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},
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}));
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describe("useTheme", () => {
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let originalClassList: DOMTokenList;
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beforeEach(() => {
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// Save the original classList to setup spies
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originalClassList = document.body.classList;
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vi.spyOn(originalClassList, "add");
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vi.spyOn(originalClassList, "remove");
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vi.spyOn(originalClassList, "item").mockReturnValue(null);
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(getUrlParams as Mock).mockReturnValue({ theme: "dark" });
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});
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afterEach(() => {
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vi.clearAllMocks();
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});
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describe.each([
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{ setTheme: null, add: ["cpd-theme-dark"] },
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{ setTheme: "light", add: ["cpd-theme-light"] },
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{ setTheme: "dark-high-contrast", add: ["cpd-theme-dark-hc"] },
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{ setTheme: "light-high-contrast", add: ["cpd-theme-light-hc"] },
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])("apply procedure", ({ setTheme, add }) => {
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test(`should apply ${add[0]} theme when ${setTheme} theme is specified`, () => {
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(getUrlParams as Mock).mockReturnValue({ theme: setTheme });
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renderHook(() => useTheme());
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expect(originalClassList.remove).toHaveBeenCalledWith(
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"cpd-theme-light",
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"cpd-theme-dark",
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"cpd-theme-light-hc",
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"cpd-theme-dark-hc",
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);
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expect(originalClassList.add).toHaveBeenCalledWith(...add);
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});
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});
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test("should not reapply the same theme if it hasn't changed", () => {
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// Simulate a previous theme
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originalClassList.item = vi.fn().mockReturnValue("cpd-theme-dark");
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renderHook(() => useTheme());
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expect(document.body.classList.add).not.toHaveBeenCalledWith(
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"cpd-theme-dark",
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);
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// Ensure the 'no-theme' class is removed
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expect(document.body.classList.remove).toHaveBeenCalledWith("no-theme");
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expect(originalClassList.add).not.toHaveBeenCalled();
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});
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test("theme changes in response to widget actions", async () => {
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renderHook(() => useTheme());
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expect(originalClassList.add).toHaveBeenCalledWith("cpd-theme-dark");
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await act(() =>
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widget!.lazyActions.emit(
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WidgetApiToWidgetAction.ThemeChange,
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new CustomEvent(WidgetApiToWidgetAction.ThemeChange, {
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detail: { data: { name: "light" } },
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}),
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),
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);
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expect(originalClassList.remove).toHaveBeenCalledWith(
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"cpd-theme-light",
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"cpd-theme-dark",
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"cpd-theme-light-hc",
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"cpd-theme-dark-hc",
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);
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expect(originalClassList.add).toHaveBeenLastCalledWith("cpd-theme-light");
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});
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});
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