118 lines
3.9 KiB
TypeScript
118 lines
3.9 KiB
TypeScript
/*
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Copyright 2022 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { setTheme } from "../src/theme";
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describe("theme", () => {
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describe("setTheme", () => {
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let lightTheme;
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let darkTheme;
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let spyQuerySelectorAll: jest.MockInstance<NodeListOf<Element>, [selectors: string]>;
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beforeEach(() => {
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const styles = [
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{
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attributes: {
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"data-mx-theme": {
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value: "light",
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},
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},
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disabled: true,
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href: "urlLight",
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onload: () => void 0,
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},
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{
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attributes: {
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"data-mx-theme": {
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value: "dark",
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},
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},
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disabled: true,
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href: "urlDark",
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onload: () => void 0,
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},
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];
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lightTheme = styles[0];
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darkTheme = styles[1];
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jest.spyOn(document.body, "style", "get").mockReturnValue([] as any);
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spyQuerySelectorAll = jest.spyOn(document, "querySelectorAll").mockReturnValue(styles as any);
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});
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afterEach(() => {
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jest.restoreAllMocks();
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jest.useRealTimers();
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});
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it("should switch theme on onload call", async () => {
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// When
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await new Promise((resolve) => {
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setTheme("light").then(resolve);
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lightTheme.onload();
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});
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// Then
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expect(spyQuerySelectorAll).toHaveBeenCalledWith("[data-mx-theme]");
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expect(spyQuerySelectorAll).toBeCalledTimes(1);
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expect(lightTheme.disabled).toBe(false);
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expect(darkTheme.disabled).toBe(true);
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});
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it("should reject promise on onerror call", () => {
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return expect(
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new Promise((resolve) => {
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setTheme("light").catch((e) => resolve(e));
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lightTheme.onerror("call onerror");
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}),
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).resolves.toBe("call onerror");
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});
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it("should switch theme if CSS are preloaded", async () => {
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// When
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jest.spyOn(document, "styleSheets", "get").mockReturnValue([lightTheme] as any);
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await setTheme("light");
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// Then
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expect(lightTheme.disabled).toBe(false);
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expect(darkTheme.disabled).toBe(true);
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});
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it("should switch theme if CSS is loaded during pooling", async () => {
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// When
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jest.useFakeTimers();
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await new Promise((resolve) => {
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setTheme("light").then(resolve);
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jest.spyOn(document, "styleSheets", "get").mockReturnValue([lightTheme] as any);
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jest.advanceTimersByTime(200);
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});
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// Then
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expect(lightTheme.disabled).toBe(false);
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expect(darkTheme.disabled).toBe(true);
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});
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it("should reject promise if pooling maximum value is reached", () => {
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jest.useFakeTimers();
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return new Promise((resolve) => {
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setTheme("light").catch(resolve);
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jest.advanceTimersByTime(200 * 10);
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});
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});
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});
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});
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