intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 26 insertions, 0 deletions

diff --git a/util/system/byteorder_ut.cpp b/util/system/byteorder_ut.cpp
new file mode 100644
index 0000000000..39b8603d3f
--- /dev/null
+++ b/util/system/byteorder_ut.cpp
@@ -0,0 +1,26 @@
+#include "byteorder.h"
+
+#include <library/cpp/testing/unittest/registar.h>
+
+class TByteOrderTest: public TTestBase {
+    UNIT_TEST_SUITE(TByteOrderTest);
+    UNIT_TEST(TestSwap16)
+    UNIT_TEST(TestSwap32)
+    UNIT_TEST(TestSwap64)
+    UNIT_TEST_SUITE_END();
+
+private:
+    inline void TestSwap16() {
+        UNIT_ASSERT_EQUAL((ui16)0x1234, SwapBytes((ui16)0x3412));
+    }
+
+    inline void TestSwap32() {
+        UNIT_ASSERT_EQUAL(0x12345678, SwapBytes(0x78563412));
+    }
+
+    inline void TestSwap64() {
+        UNIT_ASSERT_EQUAL(0x1234567890abcdefULL, SwapBytes((ui64)ULL(0xefcdab9078563412)));
+    }
+};
+
+UNIT_TEST_SUITE_REGISTRATION(TByteOrderTest);