boolean isLossy = testConvs.isLossy() || compareConvs.isLossy();
boolean preserveIDs = testConvs.preservesIDs() &&
compareConvs.preservesIDs();
NewGraphComparer comparer = getComparer(isLossy, preserveIDs);
//pack all the data relevant to the test into a single object.
TestConfigData testBasicData = new TestConfigData(comparer, testConvs,
compareConvs, cContext, testFileData);