#!/bin/sh -e

LANG="C"; export LANG
LC_CTYPE="C"; export LC_CTYPE
LC_NUMERIC="C"; export LC_NUMERIC
LC_TIME="C"; export LC_TIME
LC_COLLATE="C"; export LC_COLLATE
LC_MONETARY="C"; export LC_MONETARY
LC_MESSAGES="C"; export LC_MESSAGES
LC_PAPER="C"; export LC_PAPER
LC_NAME="C"; export LC_NAME
LC_ADDRESS="C"; export LC_ADDRESS
LC_TELEPHONE="C"; export LC_TELEPHONE
LC_MEASUREMENT="C"; export LC_MEASUREMENT
LC_IDENTIFICATION="C"; export LC_IDENTIFICATION
LC_ALL=""; export LC_ALL
TZ=GMT; export TZ
HGEDITOR=true; export HGEDITOR
HGMERGE=true; export HGMERGE
HGUSER="test"; export HGUSER

umask 022

tests=0
failed=0

HGTMP=""
cleanup_exit() {
    rm -rf "$HGTMP"
}

# Remove temporary files even if we get interrupted
trap "cleanup_exit" 0 # normal exit
trap "exit 255" 1 2 3 6 15 # HUP INT QUIT ABRT TERM

HGTMP="${TMPDIR-/tmp}/hgtests.$RANDOM.$RANDOM.$RANDOM.$$"
(umask 077 && mkdir "$HGTMP") || {
    echo "Could not create temporary directory! Exiting." 1>&2
    exit 1
}

TESTDIR="$PWD"

if [ -d /usr/lib64 ]; then
    lib=lib64
else
    lib=lib
fi

INST="$HGTMP/install"
cd ..
if ${PYTHON-python} setup.py install --home="$INST" > tests/install.err 2>&1
then
    rm tests/install.err
    mv "$INST/bin/hg" "$INST/bin/hg.real"
    (
	echo '#!/bin/sh'
	echo 'echo "+ hg $@"'
	echo 'exec hg.real "$@"'
    ) > "$INST/bin/hg"
    chmod 755 "$INST/bin/hg"
else
    cat tests/install.err
    exit 1
fi
cd "$TESTDIR"

PATH="$INST/bin:$PATH"; export PATH
PYTHONPATH="$INST/$lib/python"; export PYTHONPATH


run_one() {
    rm -f "$1.err"

    mkdir "$HGTMP/$1"
    cd "$HGTMP/$1"
    fail=0
    HOME="$HGTMP/$1"; export HOME
    OUT="$HGTMP/$1.out"
    OUTOK="$TESTDIR/$1.out"
    ERR="$TESTDIR/$1.err"

    if "$TESTDIR/$1" > "$OUT" 2>&1; then
	: no error
    else
	echo "$1 failed with error code $?"
	fail=1
    fi

    if [ -s "$OUT" -a ! -s "$OUTOK" ] ; then
	cp "$OUT" "$ERR"
	echo
	echo "$1 generated unexpected output:"
	cat "$ERR"
	fail=1
    elif [ -r "$OUTOK" ]; then
	if diff -u "$OUTOK" "$OUT" > /dev/null; then
	    : no differences
	else
	    cp "$OUT" "$ERR"
	    echo
	    echo "$1 output changed:"
	    diff -u "$OUTOK" "$ERR" || true
	    fail=1
	fi
    fi

    cd "$TESTDIR"
    rm -f "$HGTMP/$1.out"
    rm -rf "$HGTMP/$1"
    return $fail
}

TESTS="$*"
if [ -z "$TESTS" ] ; then
    TESTS=`ls test-* | grep -v "[.~]"`
fi

for f in $TESTS ; do
    echo -n "."
    run_one $f || failed=`expr $failed + 1`
    tests=`expr $tests + 1`
done

echo
echo "Ran $tests tests, $failed failed."

if [ $failed -gt 0 ] ; then
    exit 1
fi
exit 0