filter1.setPredecessors(Lists.newArrayList("colors"));
expectedOps.add(filter1);
// Add all expected P2jLOCogroup objects
P2jLOCogroup cogroup1 = new P2jLOCogroup();
cogroup1.setAlias("tiny_colors_cogrp");
cogroup1.setPredecessors(Lists.newArrayList("tiny", "colors", "colors2"));
cogroup1.setSuccessors(Lists.newArrayList("out"));
expectedOps.add(cogroup1);
// Add all expected P2jLOLimit objects
P2jLOLimit limit1 = new P2jLOLimit();