* Handles keyboard events for the close button. * Activates on Enter or Space key. * @see Requirement 14.2

Handle keyboard navigation for emoji grid.

Called by the scroll handler when the list reaches the bottom — fetches older messages.

* Resets the mock state

Reset to built-in default formatters. @see Requirements 11.6

* Set error state (called by parent after failed operation)

* Set the receiver for messages

Sets the selection to a specific set of items.

Sets the selection to a specific set of item IDs.

* Determine if a new entry should be grouped with the previous one * Groups entries that occur within the groupDelay window * * @param timest

* Determines if typing indicators should be sent based on configuration. * Mirrors the component's typing indicator suppression logic. *

* Simulates the trailing button click logic from the component. * Returns which path was taken and what arguments were passed.

Flush microtasks so async ngOnInit completes.

Toggle code block formatting. @see Requirement 2.6

* Updates the more list placement before opening the overflow popover.

Arbitrary that picks from ALL discovered story files.

* Announces a status update to screen readers. * * Uses 'polite' politeness to announce the status when the user * is idle, without interrupt

* Apply multiple format toggles in sequence * Simulates a user clicking multiple toolbar buttons * * @param initialState - Starting format state *

* Calculate the scroll position needed to show an item * Mirrors the scrollIntoView behavior with block: 'nearest' * * **Validates: Requirements 3.

* Remove all active toasts

* Clears all configurations (both type-specific and global views). * * This method resets the service to its initial state, removing all configu

* Replicates DialogFocusManager.closeDialog() behavior: * - Releases focus trap * - Restores focus to the previously focused element (Req 9.4)

* Closes the thread and restores focus to the previously focused element. * @see Requirement 13.2

* Creates a fresh instance of each concrete formatter subclass. * Used to test the round-trip property across all subclasses.

* Helper: create a clipboard-like Event with a mock DataTransfer. * jsdom does not support the ClipboardEvent constructor, so we create * a plai

* Helper: create a clipboard-like Event with a mock DataTransfer.

* Simulate creating a collaborative whiteboard * Mirrors MessageComposerService.createCollaborativeWhiteboard * * @param receiverId - User ID

* Create a CometChatConversationsComponent instance with proper Angular DI context. * Uses TestBed.runInInjectionContext so inject() calls at field l

* Creates a component instance without calling the constructor * (which requires Angular's injection context for inject()). * Manually wires the ser

* Creates an array of realistic mock call logs with varied types, statuses, and participants.

Helper: create a mock message with N image attachments