fix: Fixed workspace tests having an extra tab, b=(no-bug), c=common, compact-mode, workspaces, tests

src/zen/common/ZenUIManager.mjs

@@ -420,14 +420,12 @@ var gZenUIManager = {
       clearTimeout(this._toastTimeouts[messageId]);
     }
     this._toastTimeouts[messageId] = setTimeout(() => {
-      this.motion
-        .animate(toast, { opacity: [1, 0], scale: [1, 0.5] }, { duration: 0.2, bounce: 0 })
-        .then(() => {
-          toast.remove();
-          if (this._toastContainer.children.length === 0) {
-            this._toastContainer.setAttribute('hidden', true);
-          }
-        });
+      this.motion.animate(toast, { opacity: [1, 0], scale: [1, 0.5] }, { duration: 0.2, bounce: 0 }).then(() => {
+        toast.remove();
+        if (this._toastContainer.children.length === 0) {
+          this._toastContainer.setAttribute('hidden', true);
+        }
+      });
     }, options.timeout || 3000);
   },
 

src/zen/compact-mode/ZenCompactMode.mjs

@@ -560,7 +560,13 @@ var gZenCompactModeManager = {
   },
 
   async _onTabOpen(tab, inBackground) {
-    if (inBackground && this.preference && !this.isSidebarPotentiallyOpen() && this._canShowBackgroundTabToast  && !gZenGlanceManager._animating) {
+    if (
+      inBackground &&
+      this.preference &&
+      !this.isSidebarPotentiallyOpen() &&
+      this._canShowBackgroundTabToast &&
+      !gZenGlanceManager._animating
+    ) {
       gZenUIManager.showToast('zen-background-tab-opened-toast');
     }
   },

src/zen/tests/workspaces/browser_basic_workspaces.js

@@ -21,8 +21,8 @@ add_task(async function test_Check_Creation() {
 
   await ZenWorkspaces.removeWorkspace(ZenWorkspaces.activeWorkspace);
   const workspacesAfterRemove = await ZenWorkspaces._workspaces();
-  ok(workspacesAfterRemove.workspaces.length, 1);
+  ok(workspacesAfterRemove.workspaces.length === 1, 'One workspace should exist.');
   ok(workspacesAfterRemove.workspaces[0].uuid === currentWorkspaceUUID, 'The workspace should be the one we started with.');
-
-  ok(gBrowser.tabs.length, 1);
+  ok(gBrowser.tabs.length === 2, 'There should be one tab.');
+  BrowserTestUtils.removeTab(gBrowser.selectedTab);
 });

src/zen/workspaces/ZenWorkspaces.mjs

@@ -278,9 +278,6 @@ var ZenWorkspaces = new (class extends ZenMultiWindowFeature {
   }
 
   _initializeEmptyTab() {
-    if (gZenUIManager.testingEnabled) {
-      return;
-    }
     this._emptyTab = gBrowser.addTrustedTab('about:blank', { inBackground: true, userContextId: 0, _forZenEmptyTab: true });
   }
 
@@ -1154,16 +1151,19 @@ var ZenWorkspaces = new (class extends ZenMultiWindowFeature {
 
   async removeWorkspace(windowID) {
     let workspacesData = await this._workspaces();
-    await this.changeWorkspace(workspacesData.workspaces.find((workspace) => workspace.uuid !== windowID));
     this._deleteAllTabsInWorkspace(windowID);
+    await this.changeWorkspace(workspacesData.workspaces.find((workspace) => workspace.uuid !== windowID));
     delete this._lastSelectedWorkspaceTabs[windowID];
     await ZenWorkspacesStorage.removeWorkspace(windowID);
+    // Remove the workspace from the cache
+    this._workspaceCache.workspaces = this._workspaceCache.workspaces.filter((workspace) => workspace.uuid !== windowID);
     await this._propagateWorkspaceData();
     await this._updateWorkspacesChangeContextMenu();
     this.onWindowResize();
     for (let container of document.querySelectorAll(`.zen-workspace-tabs-section[zen-workspace-id="${windowID}"]`)) {
       container.remove();
     }
+    this.registerPinnedResizeObserver();
   }
 
   isWorkspaceActive(workspace) {