assertNotNull("Expected candidate for path " + expTreeId.getRootIdentifier(), candidate);
assertEquals("rootPath", expTreeId, candidate.getRootPath());
assertEquals("modificationType", expType, candidate.getRootNode().getModificationType());
assertNotNull("Expected candidate for path " + expTreeId.getRootIdentifier(), candidate);
assertEquals("rootPath", expTreeId, candidate.getRootPath());
assertEquals("modificationType", expType, candidate.getRootNode().getModificationType());