#!/bin/sh

exec 2>&1

test_no_arguments() {
    ( killall >"${stdoutF}" 2>"${stderrF}" )
    rtrn=$?

    assertEquals "exit value" "1" "${rtrn}"
    grep -E '^Usage: killall \[OPTION\]' "${stderrF}" > /dev/null
    assertTrue 'error message' $?
}

test_list_signals() {
    ( killall -l >"${stdoutF}" 2>"${stderrF}" )
    rtrn=$?

    assertEquals "exit value" "0" "${rtrn}"
    grep -qE '^([A-Z12]+\s*)+$' "${stdoutF}"
    assertTrue 'STDOUT lists signals' $?
}

test_not_found() {
    ( killall  "${fakeproc}" >"${stdoutF}" 2>"${stderrF}" )
    rtrn=$?

    assertEquals "exit value" "1" "${rtrn}"
    th_assertNoProcFound 'STDOUT says no process found'
}

test_all_signals() {
    allSIGNALS=$(killall -l)
    for signame in ${allSIGNALS}; do
	( killall -"${signame}" "${fakeproc}" >"${stdoutF}" 2>"${stderrF}" )
	th_assertNoProcFound "STDOUT no process found for -${signame}"
	( killall -"SIG${signame}" "${fakeproc}" >"${stdoutF}" 2>"${stderrF}" )
	th_assertNoProcFound "STDOUT no process found for -SIG${signame}"
    done
}

th_assertNoProcFound() {
    msg=$1
    grep -qE "^${fakeproc}: no process found$" "${stderrF}"
    assertTrue "${msg}" $?
}

oneTimeSetUp() {
  # Define global variables for command output.
  stdoutF="${AUTOPKGTEST_TMP}/stdout"
  stderrF="${AUTOPKGTEST_TMP}/stderr"
  fakeproc="fakename-test"
}

setUp() {
  # Truncate the output files.
  cp /dev/null "${stdoutF}"
  cp /dev/null "${stderrF}"
}

# shellcheck disable=SC1091
. shunit2