Add a test for LSan

v2: fix type check
Signed-off-by: Azat Khuzhin <[email protected]>

src/Common/tests/gtest_lsan.cpp

@@ -0,0 +1,33 @@
+#include <base/defines.h> // ADDRESS_SANITIZER
+
+#ifdef ADDRESS_SANITIZER
+
+#include <cstdlib>
+#include <thread>
+
+#include <gtest/gtest.h>
+#include <sanitizer/lsan_interface.h>
+
+/// Test that ensures that LSan works.
+///
+/// Regression test for the case when it may not work,
+/// because of broken getauxval() [1].
+///
+///   [1]: https://github.com/ClickHouse/ClickHouse/pull/33957
+TEST(Common, LSan)
+{
+    int sanitizers_exit_code = 1;
+
+    ASSERT_EXIT({
+        std::thread leak_in_thread([]()
+        {
+            void * leak = malloc(4096);
+            ASSERT_NE(leak, nullptr);
+        });
+        leak_in_thread.join();
+
+        __lsan_do_leak_check();
+    }, ::testing::ExitedWithCode(sanitizers_exit_code), ".*LeakSanitizer: detected memory leaks.*");
+}
+
+#endif