#!/bin/sh

# Copyright (c) 2009, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
#     * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#     * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# ---
# Author: Craig Silverstein

BINDIR="${BINDIR:-.}"
# We expect PPROF_PATH to be set in the environment.
# If not, we set it to some reasonable value
export PPROF_PATH="${PPROF_PATH:-$BINDIR/src/pprof}"

if [ "x$1" = "x-h" -o "x$1" = "x--help" ]; then
  echo "USAGE: $0 [unittest dir]"
  echo "       By default, unittest_dir=$BINDIR"
  exit 1
fi

DEBUGALLOCATION_TEST="${1:-$BINDIR/debugallocation_test}"

num_failures=0

# Run the i-th death test and make sure the test has the expected
# regexp.  We can depend on the first line of the output being
#    Expected regex:<regex>
# Evaluates to "done" if we are not actually a death-test (so $1 is
# too big a number, and we can stop).  Evaluates to "" otherwise.
# Increments num_failures if the death test does not succeed.
OneDeathTest() {
  "$DEBUGALLOCATION_TEST" "$1" 2>&1 | {
    regex_line='dummy'
    # Normally the regex_line is the first line of output, but not
    # always (if tcmalloc itself does any logging to stderr).
    while test -n "$regex_line"; do
      read regex_line
      regex=`expr "$regex_line" : "Expected regex:\(.*\)"`
      test -n "$regex" && break   # found the regex line
    done
    test -z "$regex" && echo "done" || grep "$regex" 2>&1
  }
}

death_test_num=0   # which death test to run
while :; do        # same as 'while true', but more portable
  echo -n "Running death test $death_test_num..."
  output="`OneDeathTest $death_test_num`"
  case $output in
     # Empty string means grep didn't find anything.
     "")      echo "FAILED"; num_failures=`expr $num_failures + 1`;;
     "done"*) echo "done with death tests"; break;;
     # Any other string means grep found something, like it ought to.
     *)       echo "OK";;
  esac
  death_test_num=`expr $death_test_num + 1`
done

# Test the non-death parts of the test too
echo -n "Running non-death tests..."
if "$DEBUGALLOCATION_TEST"; then
  echo "OK"
else
  echo "FAILED"
  num_failures=`expr $num_failures + 1`
fi

if [ "$num_failures" = 0 ]; then
  echo "PASS"
else
  echo "Failed with $num_failures failures"
fi
exit $num_failures
