mirror of https://github.com/zulip/zulip.git
55 lines
2.2 KiB
TypeScript
55 lines
2.2 KiB
TypeScript
import type {ElementHandle, Page} from "puppeteer";
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import common from "../puppeteer_lib/common";
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async function test_subscription_button(page: Page): Promise<void> {
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const stream_selector = "[data-stream-name='Venice']";
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const button_selector = `${stream_selector} .sub_unsub_button`;
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const subscribed_selector = `${button_selector}.checked`;
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const unsubscribed_selector = `${button_selector}:not(.checked)`;
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async function subscribed(): Promise<ElementHandle | null> {
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return await page.waitForSelector(subscribed_selector, {visible: true});
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}
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async function unsubscribed(): Promise<ElementHandle | null> {
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return await page.waitForSelector(unsubscribed_selector, {visible: true});
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}
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// Make sure that Venice is even in our list of streams.
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await page.waitForSelector(stream_selector, {visible: true});
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await page.waitForSelector(button_selector, {visible: true});
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// Note that we intentionally re-find the button after each click, since
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// the live-update code may replace the whole row.
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let button;
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// We assume Venice is already subscribed, so the first line here
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// should happen immediately.
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button = await subscribed();
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// Toggle subscriptions several times. This test code has been known
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// to flake, so we add console statements. It appears that the console
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// statements help prevent the flake, which is probably caused by some
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// subtle race condition. We will hopefully diagnose the root cause of
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// the flake, but I am confident that the test will mostly catch actual
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// bugs in the real code, so as long as the console.info statements help
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// here, we should just leave them in.
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for (let i = 0; i < 10; i += 1) {
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console.info(`\n unsubscribe/subscribe loop ${i}\n\n`);
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await button!.click();
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button = await unsubscribed();
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await button!.click();
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button = await subscribed();
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console.info(`\n end loop ${i}\n\n`);
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}
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}
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async function subscriptions_tests(page: Page): Promise<void> {
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await common.log_in(page);
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await common.open_streams_modal(page);
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await test_subscription_button(page);
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}
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common.run_test(subscriptions_tests);
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