test: Added tests for tab group expand and collapse, b=closes #9885, c=tabs, folders, tests, workspaces

src/zen/tests/folders/browser.toml

@@ -4,3 +4,6 @@
 
 ["browser_folder_create.js"]
 ["browser_folder_subfolder.js"]
+["browser_folder_basic_toggle.js"]
+
+["browser_folder_issue_9885.js"]

src/zen/tests/folders/browser_folder_basic_toggle.js

@@ -0,0 +1,23 @@
+/* Any copyright is dedicated to the Public Domain.
+   https://creativecommons.org/publicdomain/zero/1.0/ */
+
+'use strict';
+
+add_task(async function test_Basic_Toggle() {
+  const folder = await gZenFolders.createFolder([], {
+    renameFolder: false,
+    label: 'subfolder',
+  });
+
+  ok(!folder.collapsed, 'Folder should not be collapsed by default');
+
+  folder.labelElement.click();
+  ok(folder.collapsed, 'Folder should be collapsed after clicking on it');
+
+  folder.labelElement.click();
+  ok(!folder.collapsed, 'Folder should be expanded after clicking on it again');
+
+  const removeEvent = BrowserTestUtils.waitForEvent(folder, 'TabGroupRemoved');
+  folder.delete();
+  await removeEvent;
+});

src/zen/tests/folders/browser_folder_issue_9885.js

@@ -0,0 +1,29 @@
+/* Any copyright is dedicated to the Public Domain.
+   https://creativecommons.org/publicdomain/zero/1.0/ */
+
+'use strict';
+
+add_task(async function test_Issue_9885() {
+  const subfolder = await gZenFolders.createFolder([], {
+    renameFolder: false,
+    label: 'subfolder',
+  });
+  const parent = await gZenFolders.createFolder([], {
+    renameFolder: false,
+    label: 'parent',
+  });
+  parent.tabs[0].after(subfolder);
+
+  Assert.equal(parent, subfolder.group, 'Parent folder is set correctly');
+
+  ok(!subfolder.collapsed, 'Subfolder should not be collapsed by default');
+  ok(!parent.collapsed, 'Parent folder should not be collapsed by default');
+
+  subfolder.labelElement.click();
+  ok(subfolder.collapsed, 'Subfolder should be collapsed after clicking on it');
+  ok(!parent.collapsed, 'Parent folder should be collapsed after clicking on subfolder');
+
+  const removeEvent = BrowserTestUtils.waitForEvent(parent, 'TabGroupRemoved');
+  parent.delete();
+  await removeEvent;
+});