3 files changed, 125 insertions, 1 deletions
diff --git a/server/Makefile.am b/server/Makefile.am
index 81f438d36..a2c36874a 100644
--- a/server/Makefile.am
+++ b/server/Makefile.am
@@ -270,7 +270,8 @@ dist_noinst_HEADERS = \
     tools/sss_sync_ops.h \
     resolv/async_resolv.h \
     resolv/ares/ares_parse_srv_reply.h \
-    resolv/ares/ares_parse_txt_reply.h
+    resolv/ares/ares_parse_txt_reply.h \
+    tests/common.h
 
 
 ####################
diff --git a/server/tests/common.c b/server/tests/common.c
new file mode 100644
index 000000000..5b341abce
--- /dev/null
+++ b/server/tests/common.c
@@ -0,0 +1,104 @@
+/*
+   SSSD
+
+   Common utilities for check-based tests using talloc.
+
+   Authors:
+        Martin Nagy <mnagy@redhat.com>
+
+   Copyright (C) Red Hat, Inc 2009
+
+   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 <check.h>
+#include <stdio.h>
+
+#include "tests/common.h"
+#include "util/dlinklist.h"
+#include "util/util.h"
+
+struct size_snapshot {
+    struct size_snapshot *prev;
+    struct size_snapshot *next;
+
+    TALLOC_CTX *ctx;
+    size_t bytes_allocated;
+};
+
+static struct size_snapshot *snapshot_stack;
+
+void
+_check_leaks(TALLOC_CTX *ctx, size_t bytes, const char *location)
+{
+    size_t bytes_allocated;
+
+    bytes_allocated = talloc_total_size(ctx);
+    if (bytes_allocated != bytes) {
+        fprintf(stderr, "Leak report for %s:\n", location);
+        talloc_report_full(NULL, stderr);
+        fail("%s: memory leaks detected, %d bytes still allocated",
+             location, bytes_allocated - bytes);
+    }
+}
+
+void
+check_leaks_push(TALLOC_CTX *ctx)
+{
+    struct size_snapshot *snapshot;
+
+    snapshot = talloc(NULL, struct size_snapshot);
+    snapshot->ctx = ctx;
+    snapshot->bytes_allocated = talloc_total_size(ctx);
+    DLIST_ADD(snapshot_stack, snapshot);
+}
+
+void
+_check_leaks_pop(TALLOC_CTX *ctx, const char *location)
+{
+    struct size_snapshot *snapshot;
+    TALLOC_CTX *old_ctx;
+    size_t bytes_allocated;
+
+    if (snapshot_stack == NULL) {
+        fail("%s: trying to pop an empty stack");
+    }
+
+    snapshot = snapshot_stack;
+    DLIST_REMOVE(snapshot_stack, snapshot);
+
+    old_ctx = snapshot->ctx;
+    bytes_allocated = snapshot->bytes_allocated;
+
+    fail_if(old_ctx != ctx, "Bad push/pop order");
+
+    talloc_zfree(snapshot);
+    _check_leaks(old_ctx, bytes_allocated, location);
+}
+
+void
+leak_check_setup(void)
+{
+    talloc_enable_null_tracking();
+}
+
+void
+leak_check_teardown(void)
+{
+    if (snapshot_stack != NULL) {
+        fail("Exiting with a non-empty stack");
+    }
+    talloc_free(talloc_autofree_context());
+    check_leaks(NULL, 0);
+}
diff --git a/server/tests/common.h b/server/tests/common.h
new file mode 100644
index 000000000..39a2b8e07
--- /dev/null
+++ b/server/tests/common.h
@@ -0,0 +1,19 @@
+#ifndef __TESTS_COMMON_H__
+#define __TESTS_COMMON_H__
+
+#include <talloc.h>
+
+#define check_leaks(ctx, bytes) _check_leaks((ctx), (bytes), __location__)
+void _check_leaks(TALLOC_CTX *ctx,
+                  size_t bytes,
+                  const char *location);
+
+void check_leaks_push(TALLOC_CTX *ctx);
+
+#define check_leaks_pop(ctx) _check_leaks_pop((ctx), __location__)
+void _check_leaks_pop(TALLOC_CTX *ctx, const char *location);
+
+void leak_check_setup(void);
+void leak_check_teardown(void);
+
+#endif /* !__TESTS_COMMON_H__ */