#!/bin/bash

set -e

tests=0
failed=0
H=$PWD

TESTPATH=$PWD/install/bin
export PATH=$TESTPATH:$PATH
export PYTHONPATH=$PWD/install/lib/python

rm -rf install
cd ..
${PYTHON:-python} setup.py install --home=tests/install > tests/install.err
if [ $? != 0 ] ; then
    cat tests/install.err
fi
cd $H
rm install.err

function run_one
{
    rm -f $1.err
    export TZ=GMT
    D=`mktemp -d`
    if [ "$D" == "" ] ; then
	echo mktemp failed!
    fi

    cd $D
    fail=0

    if ! $H/$1 > .out 2>&1 ; then
	echo $1 failed with error code $?
	fail=1
    fi

    if [ -s .out -a ! -r $H/$1.out ] ; then
	echo $1 generated unexpected output:
	cat .out
	cp .out $H/$1.err
	fail=1
    elif [ -r $H/$1.out ] && ! diff -u $H/$1.out .out > /dev/null ; then
	echo $1 output changed:
	diff -u $H/$1.out .out && true
	cp .out $H/$1.err
	fail=1
    fi

    cd $H
    rm -r $D
    return $fail
}

TESTS=$@
if [ "$TESTS" == "" ] ; then
    TESTS=`ls test-* | grep -Ev "\.|~"`
fi

for f in $TESTS ; do
    echo -n "."
    if ! run_one $f ; then
	failed=$[$failed + 1]
    fi
    tests=$[$tests + 1]
done

rm -rf install

echo
echo Ran $tests tests, $failed failed

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