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[PATCH] strnlen: add tests
From: |
Eric Blake |
Subject: |
[PATCH] strnlen: add tests |
Date: |
Wed, 15 Sep 2010 13:51:05 -0600 |
* modules/strnlen-tests: New file.
* tests/test-strnlen.c: Likewise.
Signed-off-by: Eric Blake <address@hidden>
---
Always worth testsuite additions.
ChangeLog | 6 ++++
modules/strnlen-tests | 20 ++++++++++++++
tests/test-strnlen.c | 67 +++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 93 insertions(+), 0 deletions(-)
create mode 100644 modules/strnlen-tests
create mode 100644 tests/test-strnlen.c
diff --git a/ChangeLog b/ChangeLog
index 4b259da..01d353a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2010-09-15 Eric Blake <address@hidden>
+
+ strnlen: add tests
+ * modules/strnlen-tests: New file.
+ * tests/test-strnlen.c: Likewise.
+
2010-09-14 Eric Blake <address@hidden>
test-rawmemchr: make more robust
diff --git a/modules/strnlen-tests b/modules/strnlen-tests
new file mode 100644
index 0000000..31a36cf
--- /dev/null
+++ b/modules/strnlen-tests
@@ -0,0 +1,20 @@
+Files:
+tests/test-strnlen.c
+tests/zerosize-ptr.h
+tests/signature.h
+tests/macros.h
+m4/mmap-anon.m4
+
+Depends-on:
+extensions
+getpagesize
+
+configure.ac:
+dnl Check for prerequisites for memory fence checks.
+gl_FUNC_MMAP_ANON
+AC_CHECK_HEADERS_ONCE([sys/mman.h])
+AC_CHECK_FUNCS_ONCE([mprotect])
+
+Makefile.am:
+TESTS += test-strnlen
+check_PROGRAMS += test-strnlen
diff --git a/tests/test-strnlen.c b/tests/test-strnlen.c
new file mode 100644
index 0000000..15b4ee2
--- /dev/null
+++ b/tests/test-strnlen.c
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2010 Free Software Foundation, Inc.
+ * Written by Eric Blake
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+#include <string.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (strnlen, size_t, (char const *, size_t));
+
+#include <stdlib.h>
+
+#include "zerosize-ptr.h"
+#include "macros.h"
+
+int
+main (void)
+{
+ size_t i;
+ char *page_boundary = (char *) zerosize_ptr ();
+ if (!page_boundary)
+ {
+ page_boundary = malloc (0x1000);
+ ASSERT (page_boundary);
+ page_boundary += 0x1000;
+ }
+
+ /* Basic behavior tests. */
+ ASSERT (strnlen ("a", 0) == 0);
+ ASSERT (strnlen ("a", 1) == 1);
+ ASSERT (strnlen ("a", 2) == 1);
+ ASSERT (strnlen ("", 0x100000) == 0);
+
+ /* Memory fence and alignment testing. */
+ for (i = 0; i < 512; i++)
+ {
+ char *start = page_boundary - i;
+ size_t j = i;
+ memset (start, 'x', i);
+ do
+ {
+ if (i != j)
+ {
+ start[j] = 0;
+ ASSERT (strnlen (start, i + j) == j);
+ }
+ ASSERT (strnlen (start, i) == j);
+ }
+ while (j--);
+ }
+
+ return 0;
+}
--
1.7.2.3
- [PATCH] strnlen: add tests,
Eric Blake <=