chore(e2e): add basic test for table of contents

e2e/note_types/text.spec.ts

@@ -0,0 +1,33 @@
+import { test, expect, Page } from "@playwright/test";
+import App from "../support/app";
+
+test("Table of contents is displayed", async ({ page }) => {
+    const app = new App(page);
+    await app.goto();
+    await app.closeAllTabs();
+    await app.goToNoteInNewTab("Table of contents");
+
+    await expect(app.sidebar).toContainText("Table of Contents");
+    const rootList = app.sidebar.locator(".toc-widget > span > ol");
+
+    // Heading 1.1
+    //  Heading 1.1
+    //  Heading 1.2
+    // Heading 2
+    //  Heading 2.1
+    //  Heading 2.2
+    //     Heading 2.2.1
+    //          Heading 2.2.1.1
+    //              Heading 2.2.11.1
+
+    await expect(rootList.locator("> li")).toHaveCount(2);
+    await expect(rootList.locator("> li").first()).toHaveText("Heading 1");
+    await expect(rootList.locator("> ol").first().locator("> li").first()).toHaveText("Heading 1.1");
+    await expect(rootList.locator("> ol").first().locator("> li").nth(1)).toHaveText("Heading 1.2");
+
+    await expect(rootList.locator("> ol")).toHaveCount(2);
+    await expect(rootList.locator("> ol").nth(1).locator("> li")).toHaveCount(2);
+    await expect(rootList.locator("> ol").nth(1).locator("> ol")).toHaveCount(1);
+    await expect(rootList.locator("> ol").nth(1).locator("> ol > ol")).toHaveCount(1);
+    await expect(rootList.locator("> ol").nth(1).locator("> ol > ol > ol")).toHaveCount(1);
+});

e2e/support/app.ts

@@ -6,12 +6,14 @@ export default class App {
     readonly tabBar: Locator;
     readonly noteTree: Locator;
     readonly currentNoteSplit: Locator;
+    readonly sidebar: Locator;
 
     constructor(page: Page) {
         this.page = page;
         this.tabBar = page.locator(".tab-row-widget-container");
         this.noteTree = page.locator(".tree-wrapper");
         this.currentNoteSplit = page.locator(".note-split:not(.hidden-ext)")
+        this.sidebar = page.locator("#right-pane");
     }
 
     async goto() {