#
# This file contains tests for the "time" reserved word
#

%prep

  unset TIMEFMT

%test

  (time cat) >&/dev/null
0:`time' keyword (status only)

  ( TIMEFMT='%E %mE %uE %nE %* %m%mm %u%uu %n%nn'; time (:) )
0:`time' keyword with custom TIMEFMT
*?[0-9]##.[0-9](#c2)s [0-9]##ms [0-9]##us [0-9]##ns %\* %m%mm %u%uu %n%nn

  ( TIMEFMT='x %U %S %E'; time (:) )
0:TIMEFMT %[USE] use centisecond precision
*?x( <0-9>.<00-99>s)(#c3)

  ( TIMEFMT='x %*U %*S %*E'; time (:) )
0:TIMEFMT %*[USE] use millisecond precision
*?x( <0-9>.<000-999>)(#c3)

  ( TIMEFMT='%nU %nS'; time (read -k3 -t0.1) )
1:TIMEFMT %nU and %nS are limited to microsecond precision
*?(0|[1-9][0-9]#000)ns (0|[1-9][0-9]#000)ns

# SECONDS (after - before) must be greater than the elapsed time, but not much
# greater. 25% was picked arbitrarily as something that hopefully will prevent
# the test from failing on slow machines
  (
    typeset -F SECONDS
    TIMEFMT=%nE
    a=$SECONDS
    t=$( (time (read -k3 -t0.1)) 2>&1 )
    b=$SECONDS
    s=$(( b - a ))
    t=$(( ${t%ns}.0 / 10**9 ))
    echo $s $t $(( s > t )) $(( t > s - (s * 0.25) ))
  )
0:`time' elapsed time matches SECONDS
*>[0-9.]## [0-9.]## 1 1

# Again, the wide range here is an attempt to prevent this test from failing on
# slow machines. We don't care about the exact time, just that it's vaguely sane
# and that each representation has the same basis
  ( TIMEFMT='%E %mE %uE %nE %*E'; time (read -k3 -t0.1) )
1:TIMEFMT elapsed time values
*?0.<10-50>s <10-500>ms <100000-500000>us <100000000-500000000>ns 0.<100-500>

  time x=1
0:`time' simple assignment
*?shell*
*?children*

  time x=$(date)
0:`time' assignment with external command
*?shell*
*?children*

  x=0; time for ((i=1; i<=10000; ++i)); do ((x+=i)); done; echo $x
0:`time' for-loop with arithmetic condition
>50005000
*?shell*
*?children*

  time echo $(x=0;for ((i=0; i<=100000; ++i)); do ((x+=i)); done; echo $x)
0:`time' of a builtin with argument command substitution
>5000050000
*?shell*
*?children*

  time cat <(x=0;for ((i=0; i<=100000; ++i)); do ((x+=i)); done; echo $x)
0:`time' of external command with process substitution
>5000050000
*?*user*system*cpu*total

  print -u $ZTST_fd 'This test takes 2 seconds'
  time builtin nonesuch $(sleep 2)
1:`time' of nonexistent builtin with command substitution
*?*: no such builtin: nonesuch
*?shell*
*?children*

  time /no/such/commmand
127:`time' of nonexistent external
*?*no such file or directory: /no/such/commmand
*?*user*system*cpu*total

  ( setopt errexit; time false; print notreached )
1:`time' of failed builtin with errexit
*?shell*
*?children*

  ( setopt errexit; time expr 0; print notreached )
1:`time' of failed external with errexit
>0
*?*user*system*cpu*total