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Command line example

The script run.sh performs fault-localization on a Java toy project using the GZoltar command line interface. Fault-localization can either be performed with offline or online (i.e., at runtime) instrumentation.

Usage:

  ./run.sh
    --instrumentation <online|offline>
    [--help]

After executing the script, the following files can be find under the build/ directory:

  • build/gzoltar.ser - a serialized file with the coverage collected by GZoltar.
  • build/sfl/txt/tests.csv - a list of all test cases (one per row) and its correspondent outcome (either PASS or FAIL), runtime in nanoseconds, and stacktrace (if it is a failing test case).
  • build/sfl/txt/spectra.csv - a list of all lines of code identified by GZoltar (one per row) of all classes under test. Each row follows the following format: <class name>#<method name>(<method parameters>):<line number> e.g., org.gzoltar.examples$CharacterCounter#processString(java.lang.String):37.
  • build/sfl/txt/matrix.txt - a binary coverage matrix produced by GZoltar where each row represents the coverage of each individual test case and its outcome ("-" if the test case failed, "+" otherwise), and each column a line of code. 1 means that a test case covered a line of code, 0 otherwise.
  • build/sfl/txt/ochiai.ranking.csv - the fault localization report, i.e., the ranking of lines of code (one per row), produced by the spectrum-based fault localization formula ochiai.
  • build/sfl/txt/statistics.csv - some statistics information about the ranking produced.