tests/misc/date-sec

   1 #!/bin/sh
   2 # Ensure that a command like
   3 # `date --date="21:04 +0100" +%S' always prints `00'.
   4 # Before coreutils-5.2.1, it would print the seconds from the current time.
   5
   6 if test "$VERBOSE" = yes; then
   7   set -x
   8   date --version
   9 fi
  10
  11 pwd=`pwd`
  12 t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$
  13 trap 'status=$?; cd $pwd; chmod -R u+rwx $t0; rm -rf $t0 && exit $status' 0
  14 trap '(exit $?); exit $?' 1 2 13 15
  15
  16 framework_failure=0
  17 mkdir -p $tmp || framework_failure=1
  18 cd $tmp || framework_failure=1
  19
  20 if test $framework_failure = 1; then
  21   echo "$0: failure in testing framework" 1>&2
  22   (exit 1); exit 1
  23 fi
  24
  25 fail=0
  26
  27 # It would be easier simply to sleep for two seconds between two runs
  28 # of `date --date="21:04 +0100" +%S` and ensure that both outputs
  29 # are `00', but I prefer not to sleep unconditionally.  `make check'
  30 # takes long enough as it is.
  31
  32 n=0
  33 # See if the current number of seconds is `00' or just before.
  34 s=`date +%S`
  35 case "$s" in
  36   58) n=3;;
  37   59) n=2;;
  38   00) n=1;;
  39 esac
  40
  41 # If necessary, wait for the system clock to pass the minute mark.
  42 test $n = 0 || { echo sleeping for $n seconds...; sleep $n; }
  43
  44 s=`date --date="21:04 +0100" +%S`
  45 case "$s" in
  46   00) ;;
  47   *) fail=1;;
  48 esac
  49
  50 (exit $fail); exit $fail