diff options
Diffstat (limited to 'posix')
| -rw-r--r-- | posix/Makefile | 2 | ||||
| -rw-r--r-- | posix/tst-nice.c | 64 |
2 files changed, 65 insertions, 1 deletions
diff --git a/posix/Makefile b/posix/Makefile index 78619d1df1..f8c42311b2 100644 --- a/posix/Makefile +++ b/posix/Makefile @@ -75,7 +75,7 @@ tests := tstgetopt testfnm runtests runptests \ tst-chmod bug-regex1 bug-regex2 bug-regex3 bug-regex4 \ tst-gnuglob tst-regex bug-regex5 bug-regex6 bug-regex7 \ bug-regex8 bug-regex9 bug-regex10 bug-regex11 bug-regex12 \ - bug-regex13 bug-regex14 bug-regex15 bug-regex16 + bug-regex13 bug-regex14 bug-regex15 bug-regex16 tst-nice ifeq (yes,$(build-shared)) test-srcs := globtest tests += wordexp-test tst-exec tst-spawn diff --git a/posix/tst-nice.c b/posix/tst-nice.c new file mode 100644 index 0000000000..d5833c33fc --- /dev/null +++ b/posix/tst-nice.c @@ -0,0 +1,64 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include <stdio.h> +#include <unistd.h> + + +/* Test that nice() does not incorrectly return 0. */ +static int +do_test (void) +{ + int ret, expected; + const int incr = 10; + + /* Discover current nice value. */ + errno = 0; + ret = nice (0); + if (ret == -1 && errno != 0) + { + printf ("break: nice(%d) return: %d, errno: %d\n", 0, ret, errno); + return 1; + } + expected = ret + incr; + + /* Nice ourselves up. */ + errno = 0; + ret = nice (incr); + if (ret == -1 && errno != 0) + { + printf ("break: nice(%d) return: %d, errno: %d\n", incr, ret, errno); + return 1; + } + + /* Check for return value being zero when it shouldn't. Cannot simply + check for expected value since nice values are capped at 2^n-1. */ + if (ret == 0 && ret != expected) + { + printf ("fail: retval (%d) of nice(%d) != %d\n", ret, incr, expected); + return 1; + } + + printf ("pass: nice(%d) return: %d\n", incr, ret); + + return 0; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |