SB missing branch coverage in CFE_SB_SendStatsCmd, alternate config

[skliper]

Is your feature request related to a problem? Please describe.
Branch coverage would require a config with CFE_MISSION_SB_MAX_PIPES < CFE_PLATFORM_SB_MAX_PIPES to hit the stats limit first:

     731 [ +  + ][ +  - ]:         65 :     while (PipeDscCount > 0 && PipeStatCount > 0)
     732                 :            :     {
     733         [ +  + ]:         64 :         if (CFE_SB_PipeDescIsUsed(PipeDscPtr))
     734                 :            :         {
     735                 :          3 :             PipeStatPtr->PipeId = PipeDscPtr->PipeId;
     736                 :            : 
     737                 :            :             /* Copy depth info */
     738                 :          3 :             PipeStatPtr->CurrentQueueDepth = PipeDscPtr->CurrentQueueDepth;
     739                 :          3 :             PipeStatPtr->PeakQueueDepth    = PipeDscPtr->PeakQueueDepth;
     740                 :          3 :             PipeStatPtr->MaxQueueDepth     = PipeDscPtr->MaxQueueDepth;
     741                 :            : 
     742                 :          3 :             ++PipeStatPtr;
     743                 :          3 :             --PipeStatCount;
     744                 :            :         }
     745                 :            : 
     746                 :         64 :         --PipeDscCount;
     747                 :         64 :         ++PipeDscPtr;
     748                 :            :     }

here:

cFE/modules/sb/fsw/src/cfe_sb_task.c

Lines 725 to 748 in 5e41330

	/* Collect data on pipes */
	PipeDscCount = CFE_PLATFORM_SB_MAX_PIPES;
	PipeStatCount = CFE_MISSION_SB_MAX_PIPES;
	PipeDscPtr = CFE_SB_Global.PipeTbl;
	PipeStatPtr = CFE_SB_Global.StatTlmMsg.Payload.PipeDepthStats;
	while (PipeDscCount > 0 && PipeStatCount > 0)
	{
	if (CFE_SB_PipeDescIsUsed(PipeDscPtr))
	{
	PipeStatPtr->PipeId = PipeDscPtr->PipeId;
	/* Copy depth info */
	PipeStatPtr->CurrentQueueDepth = PipeDscPtr->CurrentQueueDepth;
	PipeStatPtr->PeakQueueDepth = PipeDscPtr->PeakQueueDepth;
	PipeStatPtr->MaxQueueDepth = PipeDscPtr->MaxQueueDepth;
	++PipeStatPtr;
	--PipeStatCount;
	}
	--PipeDscCount;
	++PipeDscPtr;
	}

Describe the solution you'd like
Test with alternate config to get full coverage.

Describe alternatives you've considered
None

Additional context
None

Requester Info
Jacob Hageman - NASA/GSFC

[avan989]

Code Coverage is not possible with the current configuration.
Currently:

1. PipeDscCount == CFE_PLATFORM_SB_MAX_PIPES == 64
2. PipeStatCount == CFE_MISSION_SB_MAX_PIPES == 64

The target condition:

1. PipeDscCount > 0 and
2. PipeStatCount < 0

PipeDscCount will always decrement either at the same rate or faster than PipStatCount. To make PipeStatCount < 0 while PipeDscCount > 0:

1. CFE_MISSION_SB_MAX_PIPES needs to be less than CFE_PLATFORM_SB_MAX_PIPES (as noted on the ticket in the description)