intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 21 insertions, 0 deletions

diff --git a/util/thread/singleton_ut.cpp b/util/thread/singleton_ut.cpp
new file mode 100644
index 0000000000..164b1cc184
--- /dev/null
+++ b/util/thread/singleton_ut.cpp
@@ -0,0 +1,21 @@
+#include <library/cpp/testing/unittest/registar.h>
+
+#include "singleton.h"
+
+namespace {
+    struct TFoo {
+        int i;
+        TFoo()
+            : i(0)
+        {
+        }
+    };
+}
+
+Y_UNIT_TEST_SUITE(Tls) {
+    Y_UNIT_TEST(FastThread) {
+        UNIT_ASSERT_VALUES_EQUAL(0, FastTlsSingleton<TFoo>()->i);
+        FastTlsSingleton<TFoo>()->i += 3;
+        UNIT_ASSERT_VALUES_EQUAL(3, FastTlsSingleton<TFoo>()->i);
+    }
+}