CDRIVER-2324 Test file 'test-mongoc-topology.c' does not compile if ENABLE_COMPRESSION is not set

Author: derickr

tests/test-mongoc-topology.c

@@ -345,7 +345,9 @@ _test_topology_invalidate_server (bool pooled)
    BSON_ASSERT (bson_empty (&sd->hosts));
    BSON_ASSERT (bson_empty (&sd->passives));
    BSON_ASSERT (bson_empty (&sd->arbiters));
+#ifdef MONGOC_ENABLE_COMPRESSION
    BSON_ASSERT (bson_empty (&sd->compressors));
+#endif
 
    mongoc_server_stream_cleanup (server_stream);