tests: add first tests for speaker notes

tests/src/speaker-notes.test.ts

@@ -0,0 +1,31 @@
+import { describe, it } from "mocha";
+import { $, expect, browser } from "@wdio/globals";
+
+describe("speaker-notes", () => {
+  beforeEach(async () => {
+    await browser.url("https://google.github.io/comprehensive-rust/");
+  });
+
+  it("contains summary with heading and button", async () => {
+    const summary$ = await $("details summary");
+    await expect(summary$).toExist();
+    await expect(summary$.$("#speaker-notes")).toHaveText("Speaker Notes");
+    await expect(summary$.$(".pop-out")).toExist();
+  });
+
+  it("opens a new window on button click and hide details on main page", async () => {
+    const details$ = await $("details");
+    const button$ = await $("details summary .pop-out");
+    await expect(details$).toBeDisplayed();
+    button$.scrollIntoView();
+    await button$.click();
+    await expect(details$).not.toBeDisplayed();
+
+    // a new window should have opened, it should be the second one
+    const handles = await browser.getWindowHandles();
+    await browser.switchToWindow(handles[1]);
+    await expect(browser).toHaveUrl(
+      expect.stringContaining("#speaker-notes-open")
+    );
+  });
+});