t/parallel-tests-fd-redirect-exeext.sh

   1 #! /bin/sh
   2 # Copyright (C) 2011-2024 Free Software Foundation, Inc.
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2, or (at your option)
   7 # any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  16
  17 # parallel-tests support: redirection of file descriptors with
  18 # AM_TESTS_FD_REDIRECT, for tests which are binary executables
  19 # We use some tricks to ensure that all code paths in 'lib/am/check2.am'
  20 # are covered, even on platforms where $(EXEEXT) would be naturally empty.
  21 # See also the more generic test 'check-fd-redirect.sh', and
  22 # sister test 'parallel-tests-fd-redirect.sh'.
  23
  24 required='cc native'
  25 . test-init.sh
  26
  27 cat >> configure.ac << 'END'
  28 AC_PROG_CC
  29 # Calls like "write(9, ...)" are unlikely to work for MinGW-compiled
  30 # programs.  We must skip this test if this is the case.
  31 am__ok=no
  32 AC_LINK_IFELSE(
  33     [AC_LANG_PROGRAM([[#include <unistd.h>]],
  34                      [[write (9, "foobar\n", 7); return 0;]])],
  35     [AM_RUN_LOG([./conftest$EXEEXT 9>&1]) \
  36 dnl Leading ":;" required to avoid having two nested subshells starting
  37 dnl with '((' in the generated configure: that is unportable and could
  38 dnl confuse some shells (e.g., NetBSD 5.1 /bin/ksh) into thinking we are
  39 dnl trying to perform an arithmetic operation.
  40        && AM_RUN_LOG([:; (./conftest$EXEEXT 9>&1) | grep "^foobar"]) \
  41        && am__ok=yes])
  42 test $am__ok = yes || AS_EXIT([63])
  43 AM_CONDITIONAL([real_EXEEXT], [test -n "$EXEEXT"])
  44 test -n "$EXEEXT" || EXEEXT=.bin
  45 AC_OUTPUT
  46 END
  47
  48 cat > Makefile.am << 'END'
  49 AM_TESTS_FD_REDIRECT = 9>&1
  50 TESTS = $(check_PROGRAMS)
  51 check_PROGRAMS = baz qux.test
  52 qux_test_SOURCES = zardoz.c
  53
  54 ## Sanity check.
  55 if !real_EXEEXT
  56 check-local:
  57         test -f baz.bin
  58         test -f qux.test.bin
  59 endif
  60 END
  61
  62 $ACLOCAL
  63 $AUTOCONF
  64 $AUTOMAKE -a
  65
  66 cat > baz.c <<'END'
  67 #include <stdio.h>
  68 #include <unistd.h>
  69 int main (void)
  70 {
  71   ssize_t res = write (9, " bazbazbaz\n", 11);
  72   if (res < 0)
  73     perror("write failed");
  74   return res != 11;
  75 }
  76 END
  77
  78 cat > zardoz.c <<'END'
  79 #include <stdio.h>
  80 #include <unistd.h>
  81 int main (void)
  82 {
  83   ssize_t res = write (9, " quxquxqux\n", 11);
  84   if (res < 0)
  85     perror("write failed");
  86   return res != 11;
  87 }
  88 END
  89
  90 st=0; ./configure || st=$?
  91 cat config.log # For debugging, as we do tricky checks in configure.
  92 if test $st -eq 63; then
  93   skip_ "fd redirect in compiled program unsupported"
  94 elif test $st -eq 0; then
  95   : Continue.
  96 else
  97   fatal_ "unexpected error in ./configure"
  98 fi
  99
 100 # Sanity checks.
 101 st=0
 102 grep '^baz\.log:.*baz\$(EXEEXT)' Makefile || st=1
 103 grep '^\.test\$(EXEEXT)\.log:' Makefile || st=1
 104 grep '^qux\.log:' Makefile && st=1
 105 test $st -eq 0 || fatal_ "doesn't cover expected code paths"
 106
 107 run_make -O -e IGNORE check
 108 cat baz.log
 109 cat qux.log
 110 test $am_make_rc -eq 0
 111 grep "^ bazbazbaz$" stdout
 112 grep "^ quxquxqux$" stdout
 113 $EGREP '(bazbazbaz|quxquxqux)' *.log && exit 1
 114
 115 :