MergeFrom
status_t MergeFrom(BFile* fromFile);
CPPUNIT_ASSERT( resources.MergeFrom(&file2) == B_OK );
CPPUNIT_ASSERT( resources.MergeFrom(&file2) == B_OK );
CPPUNIT_ASSERT( resources.MergeFrom(&file2) == B_IO_ERROR );
CPPUNIT_ASSERT( resources.MergeFrom(NULL) == B_BAD_VALUE );
CPPUNIT_ASSERT( resources.MergeFrom(&file2) == B_OK );
CPPUNIT_ASSERT( resources.MergeFrom(&file2) == B_OK );