#!/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

HGRCPATH=""; export HGRCPATH

if [ `echo -n HG` = "-n HG" ]

then

    ECHO_N=echo

    NNL="\c"

else

    ECHO_N="echo -n"

    NNL=

fi

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"

export TESTDIR

INST="$HGTMP/install"

PYTHONDIR="$INST/lib/python"

cd ..

if ${PYTHON-python} setup.py install --home="$INST" \

  --install-lib="$PYTHONDIR" > tests/install.err 2>&1

then

    rm tests/install.err

else

    cat tests/install.err

    exit 1

fi

cd "$TESTDIR"

BINDIR="$INST/bin"

PATH="$BINDIR:$PATH"; export PATH

if [ -n "$PYTHON" ]; then

    {

        echo "#!/bin/sh"

        echo "exec \"$PYTHON"'" "$@"'

    } > "$BINDIR/python"

    chmod 755 "$BINDIR/python"

fi

PYTHONPATH="$PYTHONDIR"; 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

}

# list of prerequisite programs

# stuff from coreutils (cat, rm, etc) are not tested

prereqs="python merge diff grep unzip gunzip bunzip2 sed"

missing=''

for pre in $prereqs ; do

    if type $pre > /dev/null 2>&1 ; then

        : prereq exists

    else

        missing="$pre $missing"

    fi

done

if [ "$missing" != ''  ] ; then

    echo "ERROR: the test suite needs some programs to execute correctly."

    echo "The following programs are missing: "

    for pre in $missing; do

        echo "   $pre"

    done

    exit 1

fi

TESTS="$*"

if [ -z "$TESTS" ] ; then

    TESTS=`ls test-* | grep -v "[.~]"`

fi

for f in $TESTS ; do

    $ECHO_N ".${NNL}"

    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