Feat/response received

[cotid-qualabs]

Summary of Changes

This pull request significantly refactors the CMCD Manager by deprecating 'response mode' and instead leveraging a new 'response received' (rr) event within the existing event-based reporting system.

Highlights

• Refactored CMCD Response Handling: The explicit 'response mode' has been removed and its functionality integrated into a new 'response received' (rr) event.
• Consolidated CMCD V2 Keys: The V2ResponseModeKeys have been merged into V2EventModeKeys.
• Enhanced Event Data: Response status (rc) and CMSD headers (cmsds, cmsdd) are now directly included in the data payload for the new rr event, ensuring comprehensive reporting.
• Sequence Number Tracking: Sequence number (sn) logic has been implemented for response events, allowing for better tracking of event order across multiple targets.
• Updated Test Suite: Unit tests have been extensively updated to reflect the new event-driven architecture, verifying CMCD data through networking engine spies and including new tests for multiple target handling and independent state management.

Changelog

• lib/util/cmcd_manager.js
  • Removed response property from this.msdSent_ object.
  • Refactored applyResponseData to trigger a new rr event, incorporating previous response mode logic.
  • Integrated response status (data.rc) and CMSD headers (data.cmsds, data.cmsdd) into the rr event data payload.
  • Updated reportEvent_ calls to use consistent quoted keys for object literals (e.g., 'sta': 'r').
  • Consolidated CMCD V2 key definitions by merging V2ResponseModeKeys into V2EventModeKeys .
  • Added 'rr' (Response Received) to the list of CmcdV2Events.
  • Implemented sequence number (sn) tracking for response events within reportEvent_.
  • Added logic to clean up requestTimestampMap_ entries if no rr event is configured for a request.
  • Renamed getResponseModeEnabledTargets() to hasResponseReceived_() and updated its logic to check for the rr event in target configurations.
• test/util/cmcd_manager_unit.js
  • Adapted numerous unit tests to align with the new event-driven approach, specifically for rr events.
  • Modified test assertions to verify CMCD data through networkingEngine spies, reflecting the internal request mechanism for event reporting.
  • Introduced new test cases to validate the handling of multiple CMCD targets and the independent state management for sequence numbers across these targets.
  • Updated test configurations to remove mode: 'response' and include events: ['rr'] where applicable.