Helper: create a mock MediaMessage with N video attachments

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

* Logs a debug message if the current level permits. * @param tag - The source identifier (e.g. service or component name). * @param message - T

* Remove the connection listener.

* Extract all href values from anchor tags in an HTML string.

* Focuses the first focusable element or close button in a dialog. * * Looks for an element with [data-dialog-close] attribute first, * then

* Gets the current active conversation (snapshot, non-reactive). * @returns The currently active conversation, or null

* Get all paragraphs in a text with their boundaries * * @param text - Text to analyze * @returns Array of ParagraphBoundary objects

* Get the link element at the current cursor position * @returns Link element or null * @private

* Get the file icon URL for a file type. * @see Requirements 9.1, 9.8

Gets the last selected index, or -1 if none.

* Get the current selection range * Returns null if no selection exists or selection has no ranges * * @returns Range object or null * @se

* Determines the receiver ID from a user or group. * Mirrors the component's logic for extracting receiver ID. * * @param receiver - User or Group

* Calculates row and column from linear index. * Alias for indexToPosition with simplified return type. * * @param index - The linear index

Gets the current selection state. @see Requirements 13.5

* Determines the trailing view CSS class based on call type. * Mirrors the template binding: * [class.cometchat-call-logs__list-item-trailing-view

* Handles a click on item at the given index. * Mirrors handleSelectionChange logic in composite list components.

* Simulates ending typing indicator when message is sent. * Mirrors the component's behavior in sendTextMessage. * * @param state - Cur

* Handles save button click. * Validates inputs and emits save event with link data.

* Handles confirm button click. * Sets loading state and emits confirmClick event.

Check if a method exists on the class (static method).

* Increment reply count if message hasn't been processed yet. * Prevents double counting from multiple event sources.

* Initializes the logged-in user and fetches reaction info.

* Determines if a call log item should have the active CSS class. * Mirrors the component method `isActiveCall()`: * if (!this.activeCall) return

* Check if any popup is open * * @param state - Current popup state * @returns True if any popup is open

* Checks if the composer state is properly reset (all content cleared)

* Validates file size against maximum allowed size. * Mirrors the component's file size validation logic. * * **Property 10: File Size Validation**

* Check if a specific format is active in the format state * Mirrors the toolbar button active state check * * **Validates: Requirements 1.3, 1.4,

Check if the audio is playing

* Returns true if the shortcode is recognized (built-in or custom).

* Patches CometChat.ConversationsRequestBuilder so that * `new CometChat.ConversationsRequestBuilder()...build().fetchNext()` resolves with `data`.

Replace GroupMembersRequestBuilder so fetchNext rejects.

* Navigate to the next suggestion (Arrow Down) * Mirrors the handleKeydown behavior for ArrowDown * * **Validates: Requirements 3.1, 3.3** * * @p

* Once the view is initialized and the #callScreenFrame is available, * start the call if we already have a sessionID. * * This handles the c

* Pauses the ringtone and cleans up focus trap on component destruction. * * @see Requirement 2.4 - Pause ringtone on destroy