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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. Note that the GZoltar project must be 'packaged' before running the following command, i.e., mvn package must be executed on the root directory.

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.