AT_TESTED([ovs-vswitchd])
AT_TESTED([ovs-vsctl])
AT_TESTED([perl])

m4_include([m4/compat.at])

m4_divert_push([PREPARE_TESTS])
[
ovs_wait () {
    # First try a quick sleep, so that the test completes very quickly
    # in the normal case.  POSIX doesn't require fractional times to
    # work, so this might not work.
    sleep 0.1
    ovs_wait_cond && exit 0
    # Then wait up to 10 seconds.
    for d in 0 1 2 3 4 5 6 7 8 9; do
        sleep 1
        ovs_wait_cond && exit 0
    done
    exit 1
}

# Prints the integers from $1 to $2, increasing by $3 (default 1) on stdout.
seq () {
    while test $1 -le $2; do
        echo $1
        set `expr $1 + ${3-1}` $2 $3
    done
}

if test "$IS_WIN32" = "yes"; then
    pwd () {
        command pwd -W "$@"
    }

    diff () {
        command diff --strip-trailing-cr "$@"
    }

    kill () {
        case "$1" in
            -0)
                shift
                for i in $*; do
                    # tasklist will always have return code 0.
                    # If pid does exist, there will be a line with the pid.
                    if tasklist //fi "PID eq $i" | grep $i >/dev/null; then
                        :
                    else
                        return 1
                    fi
                done
                return 0
                ;;
            -[1-9]*)
                shift
                for i in $*; do
                    if tasklist //fi "PID eq $i" | grep $i >/dev/null; then
                        tskill $i
                    fi
                done
                ;;
            [1-9][0-9]*)
                for i in $*; do
                    if tasklist //fi "PID eq $i" | grep $i >/dev/null; then
                        tskill $i
                    fi
                done
                ;;
        esac
    }
fi
]
m4_divert_pop([PREPARE_TESTS])

m4_define([OVS_WAIT],
  [AT_CHECK(
     [ovs_wait_cond () { $1
}
ovs_wait], [0], [ignore], [ignore], [$2])])
m4_define([OVS_WAIT_UNTIL], [OVS_WAIT([$1], [$2])])
m4_define([OVS_WAIT_WHILE],
  [OVS_WAIT([if $1; then return 1; else return 0; fi], [$2])])

dnl OVS_APP_EXIT_AND_WAIT(DAEMON)
dnl
dnl Ask the daemon named DAEMON to exit, via ovs-appctl, and then waits for it
dnl to exit.
m4_define([OVS_APP_EXIT_AND_WAIT],
  [ovs-appctl -t $1 exit
   OVS_WAIT_WHILE([test -e $1.pid])])

m4_define([ON_EXIT__], [trap '. ./cleanup' 0; cat - cleanup << $2 > __cleanup
$1
EOF
mv __cleanup cleanup
])

dnl ON_EXIT([COMMANDS])
dnl ON_EXIT_UNQUOTED([COMMANDS])
dnl
dnl Add the shell COMMANDS to a collection executed when the current test
dnl completes, as a cleanup action.  (The most common use is to kill a
dnl daemon started by the test.  This is important to prevent tests that
dnl start daemons from hanging at exit.)
dnl
dnl The only difference between ON_EXIT and ON_EXIT_UNQUOTED is that only the
dnl latter performs shell variable (e.g. $var) substitution, command
dnl substitution (e.g. `command`), and backslash escaping (e.g. \\ becomes \)
dnl in COMMANDS at the time that ON_EXIT_UNQUOTED is encountered.  ON_EXIT,
dnl in contrast, copies the literal COMMANDS and only executes shell expansion
dnl at cleanup time.
dnl
dnl Cleanup commands are executed in the reverse order of execution of
dnl these macros.
m4_define([ON_EXIT], [ON_EXIT__([$1], ['EOF'])])
m4_define([ON_EXIT_UNQUOTED], [ON_EXIT__([$1], [EOF])])