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#!/bin/bash
# 2008 Junichi Uekawa <dancer@debian.org>
set -e
# library for functional unit-testing in bash.
# WARNING: this file locates files differently from the other pbuilder
# functions:
# - if PBUILDER_CHECKOUT is set, it is assumed that testlib.sh is sourced from
# a pbuilder checkout (e.g. from the upstream Makefile or Debian build)
# - otherwise, PBUILDER_TEST_ROOT or PBUILDER_TEST_*DIR should be used to
# locate files instead of PBUILDER_ROOT and PBUILDER_*DIR since
# testlib_setup_env() overrides these vars to run the other pbuilder modules
# with a fake environment
# if this is set, use pbuilder files from this location; otherwise, use
# installed files (from PBUILDER_TEST_ROOT, which is a copy of PBUILDER_ROOT)
PBUILDER_CHECKOUT="${PBUILDER_CHECKOUT:-}"
if [ -z "$PBUILDER_CHECKOUT" ]; then
# these currently don't need to be exported
PBUILDER_TEST_ROOT="${PBUILDER_ROOT:-}"
PBUILDER_TEST_PKGLIBDIR="${PBUILDER_PKGLIBDIR:-$PBUILDER_ROOT/usr/lib/pbuilder}"
PBUILDER_TEST_PKGDATADIR="${PBUILDER_PKGDATADIR:-$PBUILDER_ROOT/usr/share/pbuilder}"
fi
# set PBUILDER_TEST_VERBOSE to get the full output of tests
TESTLIB_FAILS=0
TESTLIB_TESTS=0
testlib_echo() {
case "$1" in
OK)
shift
if [ -n "$PBUILDER_TEST_VERBOSE" ]; then
echo "[OK]" "$@" >&2
fi
;;
FAIL)
shift
echo "[FAIL]" "$@" >&2
TESTLIB_FAILS=$(($TESTLIB_FAILS + 1))
;;
esac
TESTLIB_TESTS=$(($TESTLIB_TESTS + 1))
}
testlib_summary() {
echo "$0: Ran $TESTLIB_TESTS tests and $(($TESTLIB_TESTS - $TESTLIB_FAILS)) succeeded, $TESTLIB_FAILS failed"
if [ $TESTLIB_FAILS != 0 ]; then
echo '================='
echo 'Testsuite FAILED!'
echo " $0"
echo '================='
return 1
fi
return 0
}
# Create fake installed tree with basic config files. Make sure you trap test
# script exit to call testlib_cleanup_env. Optional arg is location of the
# pbuilder checkout to copy files from.
# this is where the env actually lives
testlib_env_root=""
testlib_setup_env() {
local abs_pbuilder_checkout r
if [ -n "$testlib_env_root" ]; then
echo "testlib_setup_env called twice without testlib_cleanup_env" >&2
testlib_cleanup_env
exit 1
fi
if [ -n "$PBUILDER_CHECKOUT" ]; then
abs_pbuilder_checkout="`cd $PBUILDER_CHECKOUT; pwd`"
fi
# backup env vars
testlib_env_oldhome="$HOME"
testlib_env_oldroot="$PBUILDER_ROOT"
testlib_env_root="`mktemp -dt`"
# brevity
r="$testlib_env_root"
mkdir "$r"/etc
touch "$r"/etc/pbuilderrc
mkdir -p "$r"/usr/share/pbuilder
if [ -n "$PBUILDER_CHECKOUT" ]; then
cp "$PBUILDER_CHECKOUT"/pbuilderrc "$r"/usr/share/pbuilder
else
cp "$PBUILDER_TEST_PKGDATADIR"/pbuilderrc "$r"/usr/share/pbuilder
fi
mkdir -p "$r"/usr/lib
if [ -n "$PBUILDER_CHECKOUT" ]; then
ln -s "$abs_pbuilder_checkout" "$r"/usr/lib/pbuilder
else
ln -s "$PBUILDER_TEST_PKGLIBDIR" "$r"/usr/lib/pbuilder
fi
export PBUILDER_ROOT="$r"
# when running the testsuite within pbuilder, these env vars will have been
# set by regular pbuilder commands, so we need to unset them as to allow
# their default values to be recomputed relative to PBUILDER_ROOT
unset PBUILDER_PKGLIBDIR PBUILDER_PKGDATADIR PBUILDER_SYSCONFDIR
mkdir "$r"/home
touch "$r"/home/.pbuilderrc
export HOME="$r"/home
}
# Reverse the effect of testlib_setup_env. Setup a trap handler in your tests
# on this function if you call testlib_setup_env.
testlib_cleanup_env() {
if [ -z "$testlib_env_root" ]; then
# nothing to do
return
fi
rm -rf "$testlib_env_root"
export PBUILDER_ROOT="$testlib_env_oldroot"
export HOME="$testlib_env_oldhome"
testlib_env_root=""
}
expect_success() {
# run the test in subshell; successful commands should not output anything
# to stderr but may send output to stdout
if (if [ -z "$PBUILDER_TEST_VERBOSE" ]; then exec >/dev/null; fi; "$@"); then
testlib_echo "OK" "$1"
else
testlib_echo "FAIL" "$1"
fi
}
expect_fail() {
# run the test in subshell; failed commands may output anything to stdout
# and stderr
if (if [ -z "$PBUILDER_TEST_VERBOSE" ]; then exec >/dev/null 2>&1; fi; "$@"); then
testlib_echo "FAIL" "$1"
else
testlib_echo "OK" "$1"
fi
}
expect_output() {
# run the test in subshell
local val result
val="$1"
shift
result="`"$@" 2>&1`" || true
if [ "$result" = "$val" ]; then
testlib_echo "OK" "$1"
else
testlib_echo "FAIL" "$1" "expected [$val] but got [$result]"
fi
}
expect_stderr() {
# we need to use 2 subshells, one which discards the stdout, and the other
# that redirects stderr to stdout so that it can be saved to the variable
local val result
val="$1"
shift
result="$( { "$@" >/dev/null; } 2>&1)" || true
if [ "$result" = "$val" ]; then
testlib_echo "OK" "$1"
else
testlib_echo "FAIL" "$1" "expected [$val] but got [$result]"
fi
}
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