is there a way to set key/value Comparator to test MultiOutput in mrunit?
Based on my analysis: The mrunit doesn't use key/value Comparators to test the equality of expected and actual values of multioutput.The key/value comparators are only used for single output key and value comparison.
The TestDriver class has separate methods for the single output and multioutput, which compares the expected and actual results.
validate(single outputs, orderMatters);
validate(multioutput);