Added a simple test script, which tests the core functionality and verifies that all bugs are reproducible.
Added a simple test script, which tests the core functionality and verifies that
all bugs are reproducible.

rjust/defects4j,jose/defects4j,rjust/defects4j,rjust/defects4j,rjust/defects4j,jose/defects4j,jose/defects4j,jose/defects4j