#!/bin/bash

# $srcdir variable is set by automake environment
cd $srcdir/test

# number is incremented after running every test
testnum=0

sudo rm -f *.diff *.out

VALGRIND="valgrind -q"
if [ -n "$SKIP_VALGRIND" ]; then
	VALGRIND=""
fi

libdir="$abs_builddir/.libs"
ldpath="LD_LIBRARY_PATH=$libdir"
BSDIFF="sudo $ldpath $VALGRIND $libdir/bsdiff"
BSPATCH="sudo $ldpath $VALGRIND $libdir/bspatch"

# If exit status is 0, the test succeeded. Else it failed.
check_success() {
	res=$?
	[ -n "$1" ] && msg="$1" || msg=""
	testnum=$(expr $testnum + 1)
	if [ $res -ne 0 ]; then
		echo "not ok $testnum - $msg"
	else
		echo "ok $testnum"
	fi
}

# If exit status is 255, the test succeeded. Else it failed.
check_failure() {
	res=$?
	[ -n "$1" ] && msg="$1" || msg=""
	testnum=$(expr $testnum + 1)
	if [ $res -ne 255 ]; then
		echo "not ok $testnum - $msg"
	else
		echo "ok $testnum"
	fi
}

echo "Running test #5 ..."
$BSPATCH data/5.bspatch.original 5.out data/5.bspatch.diff
check_success

echo "Running test #6 ..."
$BSPATCH data/6.bspatch.original 6.out data/6.bspatch.diff
check_success

echo "Running test #7 ..."
$BSPATCH data/7.bspatch.original 7.out data/7.bspatch.diff
check_success

echo "Running test #8 ..."
$BSPATCH data/8.bspatch.original 8.out data/8.bspatch.diff
check_success

echo "Running test #9 ..."
$BSPATCH data/9.bspatch.original 9.out data/9.bspatch.diff
diff data/9.bspatch.modified 9.out
check_success "output does not match expected!!"

echo "Running test #10 ..."
$BSPATCH data/10.bspatch.original 10.out data/10.bspatch.diff
diff data/10.bspatch.modified 10.out
check_success "output does not match expected!!"

#same as 9 but with zeros encoding
echo "Running test #11 ..."
$BSPATCH data/9.bspatch.original 11.out data/11.bspatch.diff
diff data/9.bspatch.modified 11.out
check_success "output does not match expected!!"

echo "Running test #12 ..."
$BSPATCH data/12.bspatch.original 12.out data/12.bspatch.diff
diff data/12.bspatch.modified 12.out
check_success "output does not match expected!!"

echo "Running test #13 ..."
$BSDIFF data/13.bspatch.original data/13.bspatch.modified 13.diff any
$BSPATCH data/13.bspatch.original 13.out 13.diff
diff data/13.bspatch.modified 13.out
check_success "output does not match expected!!"

# Next a very loooong running test, but one which successfully condenses the 2MB
# original file pair into a 26kB bsdiff.  The bsdiff computation alone (ie:
# non-valgrind'd) takes ~20minutes on a decent build machine.  Running it
# through valgrind takes many many hours to run to completion.  Therefore leave
# filepair #14 as one for only occasional use in long-running regression
# testing.  The other file pairs can be check quickly enough that they can be
# used in a regression test run at every check-in of code changes to the bsdiff
# implementation.
#
#echo "Running test #14 ..."
#$BSDIFF data/14.bspatch.original data/14.bspatch.modified 14.diff any
#$BSPATCH data/14.bspatch.original 14.out 14.diff
#diff data/14.bspatch.modified 14.out
#check_success "output does not match expected!!"

echo "Running test #15 ..."
$BSDIFF data/15.bspatch.original data/15.bspatch.modified 15.diff any
# expected output: "Failed to create delta (-1)"
check_failure "patch creation has memory management issue!"

echo "Running test #16 ..."
# any valgrind errors may indicate a buffer overflow
$BSPATCH data/16.bspatch.original 16.out data/16.bspatch.diff
check_success

# For TAP support, output the plan
echo "1..${testnum}"