tools/testing/selftests/kselftest/runner.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 #
   4 # Runs a set of tests in a given subdirectory.
   5 export skip_rc=4
   6 export logfile=/dev/stdout
   7 export per_test_logging=
   8
   9 # There isn't a shell-agnostic way to find the path of a sourced file,
  10 # so we must rely on BASE_DIR being set to find other tools.
  11 if [ -z "$BASE_DIR" ]; then
  12         echo "Error: BASE_DIR must be set before sourcing." >&2
  13         exit 1
  14 fi
  15
  16 # If Perl is unavailable, we must fall back to line-at-a-time prefixing
  17 # with sed instead of unbuffered output.
  18 tap_prefix()
  19 {
  20         if [ ! -x /usr/bin/perl ]; then
  21                 sed -e 's/^/# /'
  22         else
  23                 "$BASE_DIR"/kselftest/prefix.pl
  24         fi
  25 }
  26
  27 # If stdbuf is unavailable, we must fall back to line-at-a-time piping.
  28 tap_unbuffer()
  29 {
  30         if ! which stdbuf >/dev/null ; then
  31                 "$@"
  32         else
  33                 stdbuf -i0 -o0 -e0 "$@"
  34         fi
  35 }
  36
  37 run_one()
  38 {
  39         DIR="$1"
  40         TEST="$2"
  41         NUM="$3"
  42
  43         BASENAME_TEST=$(basename $TEST)
  44
  45         TEST_HDR_MSG="selftests: $DIR: $BASENAME_TEST"
  46         echo "# $TEST_HDR_MSG"
  47         if [ ! -x "$TEST" ]; then
  48                 echo -n "# Warning: file $TEST is "
  49                 if [ ! -e "$TEST" ]; then
  50                         echo "missing!"
  51                 else
  52                         echo "not executable, correct this."
  53                 fi
  54                 echo "not ok $test_num $TEST_HDR_MSG"
  55         else
  56                 cd `dirname $TEST` > /dev/null
  57                 (((((tap_unbuffer ./$BASENAME_TEST 2>&1; echo $? >&3) |
  58                         tap_prefix >&4) 3>&1) |
  59                         (read xs; exit $xs)) 4>>"$logfile" &&
  60                 echo "ok $test_num $TEST_HDR_MSG") ||
  61                 (if [ $? -eq $skip_rc ]; then   \
  62                         echo "not ok $test_num $TEST_HDR_MSG # SKIP"
  63                 else
  64                         echo "not ok $test_num $TEST_HDR_MSG"
  65                 fi)
  66                 cd - >/dev/null
  67         fi
  68 }
  69
  70 run_many()
  71 {
  72         echo "TAP version 13"
  73         DIR=$(basename "$PWD")
  74         test_num=0
  75         total=$(echo "$@" | wc -w)
  76         echo "1..$total"
  77         for TEST in "$@"; do
  78                 BASENAME_TEST=$(basename $TEST)
  79                 test_num=$(( test_num + 1 ))
  80                 if [ -n "$per_test_logging" ]; then
  81                         logfile="/tmp/$BASENAME_TEST"
  82                         cat /dev/null > "$logfile"
  83                 fi
  84                 run_one "$DIR" "$TEST" "$test_num"
  85         done
  86 }