[TEST] export - add unit test covering merge to same address addressee handling

[eileenmcnaughton]

Overview

Adds a unit test for the weird & wonderful code that handles the address fields on merge same address (not that much of the wondeful)

Before

No test

After

Test

Technical Details

Comments

[civibot]

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[colemanw]

@eileenmcnaughton test falls over on Undefined property: CRM_Export_BAO_ExportProcessor::$contactGreetingFieldss
Looks like a typo with the extra s at the end of that variable name.

[eileenmcnaughton]

@colemanw green tick now