Add UI tests

src/spec/scenarios/copyTopicToClipboard.ts

@@ -0,0 +1,7 @@
+import { clickOn, sleep, writeText, expandTopic } from '../util'
+import { Browser } from 'webdriverio'
+
+export async function copyTopicToClipboard(browser: Browser<void>) {
+  const copyButton = await browser.$('//p[contains(text(), "Topic")]/span')
+  await clickOn(copyButton, browser, 1)
+}