ES missing coverage in cfe_es_task.c related to GLOBAL_CONFIGDATA defined in psp stubs

[skliper]

Is your feature request related to a problem? Please describe.
Many cases in cfe_es_task.c where code can't be exercised based on the definition of GLOBAL_CONFIGDATA in the psp. Example:

     194 [ +  + ][ -  + ]:         30 :     if (KeyName != NULL && ConfigList != NULL)
     195                 :            :     {
     196         [ #  # ]:          0 :         while (ConfigList->Key != NULL)
     197                 :            :         {
     198         [ #  # ]:          0 :             if (strcmp(KeyName, ConfigList->Key) == 0)
     199                 :            :             {
     200                 :          0 :                 ValuePtr = ConfigList->Value;
     201                 :          0 :                 break;
     202                 :            :             }
     203                 :            : 
     204                 :          0 :             ++ConfigList;
     205                 :            :         }
     206                 :            :     }

here:

cFE/modules/es/fsw/src/cfe_es_task.c

Lines 194 to 206 in e5d4ed9

	if (KeyName != NULL && ConfigList != NULL)
	{
	while (ConfigList->Key != NULL)
	{
	if (strcmp(KeyName, ConfigList->Key) == 0)
	{
	ValuePtr = ConfigList->Value;
	break;
	}
	++ConfigList;
	}
	}

Impacts CFE_ES_FindConfigKeyValue, CFE_ES_GenerateSingleVersionEvent, CFE_ES_GenerateVersionEvents, CFE_ES_GenerateBuildInfoEvents

Describe the solution you'd like
Provide a mechanism for overriding or defining GLOBAL_CONFIGDATA from the test code. Some branches require both NULL and non-NULL values for coverage, so likely would need multiple builds.

Describe alternatives you've considered
Coverage could be improved by just exposing a few of the internal routines and/or splitting up code and providing stubs. With 2 versions available from the PSP likely could achieve full coverage, but clunky to cross repos just for coverage...

Additional context
None

Requester Info
Jacob Hageman - NASA/GSFC

[skliper]

Resolved in #1980