X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ftalloc%2Ftest%2Frun-test_steal.c;fp=ccan%2Ftalloc%2Ftest%2Frun-test_steal.c;h=346f0917a45b8ab4dff0c2e70d9c5b2613f1f306;hp=0000000000000000000000000000000000000000;hb=87aba1fa2abc28ff06f82e30cde3fa3d991e8e18;hpb=f0002cb9e4f6f403a25ad50252c06694439900f0

diff --git a/ccan/talloc/test/run-test_steal.c b/ccan/talloc/test/run-test_steal.c
new file mode 100644
index 00000000..346f0917
--- /dev/null
+++ b/ccan/talloc/test/run-test_steal.c
@@ -0,0 +1,141 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   local testing of talloc routines.
+
+   Copyright (C) Andrew Tridgell 2004
+   Converted to ccan tests by Rusty Russell 2008
+   
+     ** NOTE! The following LGPL license applies to the talloc
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+   
+   This 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 of the License, or (at your option) any later version.
+
+   This 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 this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include <ccan/failtest/failtest_override.h>
+#include <ccan/talloc/talloc.c>
+#include <stdbool.h>
+#include <ccan/tap/tap.h>
+#include <ccan/failtest/failtest.h>
+
+#define torture_assert(test, expr, str)					\
+	ok(expr, "%s [\n%s: Expression %s failed: %s\n]\n",		\
+	   test, __location__, #expr, str)
+
+#define torture_assert_str_equal(test, arg1, arg2, desc)	\
+	ok(strcmp(arg1, arg2) == 0,				\
+	   "%s [\n%s: Expected %s, got %s: %s\n]\n",		\
+	   test, __location__, arg1, arg2, desc)
+
+#define CHECK_SIZE(test, ptr, tsize)					\
+	ok(talloc_total_size(ptr) == (tsize),				\
+	   "%s [\nwrong '%s' tree size: got %u  expected %u\n]\n",	\
+	   test, #ptr,							\
+	   (unsigned)talloc_total_size(ptr),				\
+	   (unsigned)tsize)
+
+#define CHECK_BLOCKS(test, ptr, tblocks)				\
+	ok(talloc_total_blocks(ptr) == (tblocks),			\
+	   "%s [\nwrong '%s' tree blocks: got %u  expected %u\n]\n",	\
+	   test, #ptr,							\
+	   (unsigned)talloc_total_blocks(ptr),				\
+	   (unsigned)tblocks)
+
+#define CHECK_PARENT(test, ptr, parent)					\
+	ok(talloc_parent(ptr) == (parent),				\
+	   "%s [\n'%s' has wrong parent: got %p  expected %p\n]\n",	\
+	   test, #ptr,							\
+	   talloc_parent(ptr),						\
+	   (parent))
+
+struct torture_context;
+
+/*
+  test steal
+*/
+static bool test_steal(const struct torture_context *ctx)
+{
+	void *root, *p1, *p2;
+	bool ret = false;
+
+	root = talloc_new(ctx);
+	if (!root)
+		goto out;
+
+	p1 = talloc_array(root, char, 10);
+	if (!p1)
+		goto out;
+	CHECK_SIZE("steal", p1, 10);
+
+	p2 = talloc_realloc(root, NULL, char, 20);
+	if (!p2)
+		goto out;
+	CHECK_SIZE("steal", p1, 10);
+	CHECK_SIZE("steal", root, 30);
+
+	torture_assert("steal", talloc_steal(p1, NULL) == NULL,
+		"failed: stealing NULL should give NULL\n");
+
+	torture_assert("steal", talloc_steal(p1, p1) == p1,
+		"failed: stealing to ourselves is a nop\n");
+	CHECK_BLOCKS("steal", root, 3);
+	CHECK_SIZE("steal", root, 30);
+
+	talloc_steal(NULL, p1);
+	talloc_steal(NULL, p2);
+	CHECK_BLOCKS("steal", root, 1);
+	CHECK_SIZE("steal", root, 0);
+
+	talloc_free(p1);
+	talloc_steal(root, p2);
+	CHECK_BLOCKS("steal", root, 2);
+	CHECK_SIZE("steal", root, 20);
+	
+	talloc_free(p2);
+
+	CHECK_BLOCKS("steal", root, 1);
+	CHECK_SIZE("steal", root, 0);
+
+	talloc_free(root);
+	root = NULL;
+
+	p1 = talloc_size(NULL, 3);
+	if (!p1)
+		goto out;
+	CHECK_SIZE("steal", NULL, 3);
+	talloc_free(p1);
+	ret = true;
+
+out:
+	talloc_free(root);
+	return ret;
+}
+
+int main(int argc, char *argv[])
+{
+	plan_tests(16);
+	failtest_init(argc, argv);
+
+	talloc_enable_null_tracking();
+	if (null_context) {
+		ok1(test_steal(NULL));
+		/* This closes the leak, but don't free any other leaks! */
+		ok1(!talloc_chunk_from_ptr(null_context)->child);
+		talloc_disable_null_tracking();
+	}
+	failtest_exit(exit_status());
+}
+