CAS runCas = CasCreationUtils.createCas(tsd, null, null);
CAS goldCas = CasCreationUtils.createCas(tsd, null, null);
for (TestCasData td : testCasData) {
// init etc
runCas.reset();
goldCas.reset();
// deserialize CASes
IPath path2RunFile = runTestPath.append(td.getPath().toFile().getName());
String runFilePath = path2RunFile.toPortableString();
File runFile = new File(runFilePath);
deserializeCASs(goldCas, td, runCas, runFile);