Script to compare runs of Mondrian's test suite, to see which test failures have been fixed or introduced

megex.sh

#!/bin/bash
#
# megex - Archives megatest.log (the output from a run of
# mondrian/bin/megatest) to megatest.n.log, and generates
# megatest.n.summary.log, which contains one line for each test
# error/failure.
#
# Determines 'n' to be after all other megatest.n.log files in the
# current directory.
#
# You can compare runs using diff:
#
#   diff megatest.{23,25}.log


function testExceptions() {
  awk '
/^     \[java\] [0-9]+) / {
    s = $0;
    gsub(/[^)]*) /, "", s);
    gsub(/).*$/, "", s);
    split(s, a, /\(/)
    print a[2] "." a[1]
}
    ' |
  LC_ALL=C sort -t .
}

function main() {
  if [ ! -f megatest.log ]; then
    echo "megex: No megatest.log. Aborting."
    exit 1
  fi
  n=1
  while [ -f megatest.${n}.log ]; do
    n=$(expr $n + 1)
  done
  mv megatest.log megatest.${n}.log
  testExceptions < megatest.${n}.log > megatest.${n}.summary.log
  echo Created megatest.${n}.log and megatest.${n}.summary.log
  grep 'Tests run' megatest.${n}.log
  diff megatest.$(expr $n - 1).summary.log megatest.${n}.summary.log
}

main "$@"

# End megex