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[src/trunk]: src Couple of unit tests for fflush(3).
details: https://anonhg.NetBSD.org/src/rev/e4a4b20d319d
branches: trunk
changeset: 769469:e4a4b20d319d
user: jruoho <jruoho%NetBSD.org@localhost>
date: Sun Sep 11 05:15:55 2011 +0000
description:
Couple of unit tests for fflush(3).
diffstat:
distrib/sets/lists/tests/mi | 4 +-
tests/lib/libc/stdio/Makefile | 3 +-
tests/lib/libc/stdio/t_fflush.c | 171 ++++++++++++++++++++++++++++++++++++++++
3 files changed, 176 insertions(+), 2 deletions(-)
diffs (216 lines):
diff -r 47380a9e7809 -r e4a4b20d319d distrib/sets/lists/tests/mi
--- a/distrib/sets/lists/tests/mi Sun Sep 11 04:55:48 2011 +0000
+++ b/distrib/sets/lists/tests/mi Sun Sep 11 05:15:55 2011 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.378 2011/08/27 18:55:52 dyoung Exp $
+# $NetBSD: mi,v 1.379 2011/09/11 05:15:55 jruoho Exp $
#
# Note: don't delete entries from here - mark them as "obsolete" instead.
#
@@ -436,6 +436,7 @@
./usr/libdata/debug/usr/tests/lib/libc/ssp/h_vsprintf.debug tests-lib-debug debug,atf,ssp
./usr/libdata/debug/usr/tests/lib/libc/stdio tests-lib-debug
./usr/libdata/debug/usr/tests/lib/libc/stdio/t_clearerr.debug tests-lib-debug debug,atf
+./usr/libdata/debug/usr/tests/lib/libc/stdio/t_fflush.debug tests-lib-debug debug,atf
./usr/libdata/debug/usr/tests/lib/libc/stdio/t_fmemopen.debug tests-lib-debug debug,atf
./usr/libdata/debug/usr/tests/lib/libc/stdio/t_format.debug tests-obsolete obsolete
./usr/libdata/debug/usr/tests/lib/libc/stdio/t_popen.debug tests-lib-debug debug,atf
@@ -2020,6 +2021,7 @@
./usr/tests/lib/libc/stdio tests-lib-tests
./usr/tests/lib/libc/stdio/Atffile tests-lib-tests atf
./usr/tests/lib/libc/stdio/t_clearerr tests-lib-tests atf
+./usr/tests/lib/libc/stdio/t_fflush tests-lib-tests atf
./usr/tests/lib/libc/stdio/t_fmemopen tests-lib-tests atf
./usr/tests/lib/libc/stdio/t_format tests-obsolete obsolete
./usr/tests/lib/libc/stdio/t_popen tests-lib-tests atf
diff -r 47380a9e7809 -r e4a4b20d319d tests/lib/libc/stdio/Makefile
--- a/tests/lib/libc/stdio/Makefile Sun Sep 11 04:55:48 2011 +0000
+++ b/tests/lib/libc/stdio/Makefile Sun Sep 11 05:15:55 2011 +0000
@@ -1,10 +1,11 @@
-# $NetBSD: Makefile,v 1.5 2011/07/08 06:38:04 jruoho Exp $
+# $NetBSD: Makefile,v 1.6 2011/09/11 05:15:55 jruoho Exp $
.include <bsd.own.mk>
TESTSDIR= ${TESTSBASE}/lib/libc/stdio
TESTS_C+= t_clearerr
+TESTS_C+= t_fflush
TESTS_C+= t_fmemopen
TESTS_C+= t_popen
TESTS_C+= t_printf
diff -r 47380a9e7809 -r e4a4b20d319d tests/lib/libc/stdio/t_fflush.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/lib/libc/stdio/t_fflush.c Sun Sep 11 05:15:55 2011 +0000
@@ -0,0 +1,171 @@
+/* $NetBSD: t_fflush.c,v 1.1 2011/09/11 05:15:55 jruoho Exp $ */
+
+/*-
+ * Copyright (c) 2011 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jukka Ruohonen.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: t_fflush.c,v 1.1 2011/09/11 05:15:55 jruoho Exp $");
+
+#include <atf-c.h>
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+
+static const char *path = "fflush";
+
+ATF_TC_WITH_CLEANUP(fflush_err);
+ATF_TC_HEAD(fflush_err, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test errors from fflush(3)");
+}
+
+ATF_TC_BODY(fflush_err, tc)
+{
+ FILE *f;
+
+ f = fopen(path, "w");
+
+ ATF_REQUIRE(f != NULL);
+ ATF_REQUIRE(fflush(NULL) == 0);
+ ATF_REQUIRE(fclose(f) == 0);
+
+ f = fopen(path, "r");
+ ATF_REQUIRE(f != NULL);
+
+ /*
+ * In NetBSD the call should fail if the supplied
+ * parameteris not an open stream or the stream is
+ * not open for writing.
+ */
+ errno = 0;
+ ATF_REQUIRE_ERRNO(EBADF, fflush(f) == EOF);
+
+ ATF_REQUIRE(fclose(f) == 0);
+
+ errno = 0;
+ ATF_REQUIRE_ERRNO(EBADF, fflush(f) == EOF);
+
+ (void)unlink(path);
+}
+
+ATF_TC_CLEANUP(fflush_err, tc)
+{
+ (void)unlink(path);
+}
+
+ATF_TC_WITH_CLEANUP(fflush_seek);
+ATF_TC_HEAD(fflush_seek, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test file offsets with fflush(3)");
+}
+
+ATF_TC_BODY(fflush_seek, tc)
+{
+ char buf[12];
+ int fd = -1;
+ FILE *f;
+
+ /*
+ * IEEE Std 1003.1-2008:
+ *
+ * "For a stream open for reading, if the file
+ * is not already at EOF, and the file is one
+ * capable of seeking, the file offset of the
+ * underlying open file description shall be
+ * adjusted so that the next operation on the
+ * open file description deals with the byte
+ * after the last one read from or written to
+ * the stream being flushed."
+ */
+ f = fopen(path, "w");
+ ATF_REQUIRE(f != NULL);
+
+ ATF_REQUIRE(fwrite("garbage", 1, 7, f) == 7);
+ ATF_REQUIRE(fclose(f) == 0);
+
+ f = fopen(path, "r+");
+ ATF_REQUIRE(f != NULL);
+
+ fd = fileno(f);
+ ATF_REQUIRE(fd != -1);
+
+ ATF_REQUIRE(fread(buf, 1, 3, f) == 3);
+ ATF_REQUIRE(fflush(f) == 0);
+ ATF_REQUIRE(fseek(f, 0, SEEK_CUR) == 0);
+
+ /*
+ * Verify that the offsets are right and that
+ * a read operation resumes at the correct location.
+ */
+ ATF_REQUIRE(ftell(f) == 3);
+ ATF_REQUIRE(lseek(fd, 0, SEEK_CUR) == 3);
+ ATF_REQUIRE(fgetc(f) == 'b');
+
+ ATF_REQUIRE(fclose(f) == 0);
+ ATF_REQUIRE(unlink(path) == 0);
+}
+
+ATF_TC_CLEANUP(fflush_seek, tc)
+{
+ (void)unlink(path);
+}
+
+ATF_TC_WITH_CLEANUP(fpurge_err);
+ATF_TC_HEAD(fpurge_err, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "Test errors from fpurge(3)");
+}
+
+ATF_TC_BODY(fpurge_err, tc)
+{
+ FILE *f;
+
+ f = fopen(path, "w");
+ ATF_REQUIRE(f != NULL);
+ ATF_REQUIRE(fclose(f) == 0);
+
+ errno = 0;
+ ATF_REQUIRE_ERRNO(EBADF, fpurge(f) == EOF);
+
+ (void)unlink(path);
+}
+
+ATF_TC_CLEANUP(fpurge_err, tc)
+{
+ (void)unlink(path);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+ ATF_TP_ADD_TC(tp, fflush_err);
+ ATF_TP_ADD_TC(tp, fflush_seek);
+ ATF_TP_ADD_TC(tp, fpurge_err);
+
+ return atf_no_error();
+}
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