1 files changed, 29 insertions, 0 deletions
diff --git a/util/stream/hex_ut.cpp b/util/stream/hex_ut.cpp
new file mode 100644
index 0000000000..5074a0b616
--- /dev/null
+++ b/util/stream/hex_ut.cpp
@@ -0,0 +1,29 @@
+#include "hex.h"
+
+#include <library/cpp/testing/unittest/registar.h>
+#include "str.h"
+
+Y_UNIT_TEST_SUITE(THexCodingTest) {
+    void TestImpl(const TString& data) {
+        TString encoded;
+        TStringOutput encodedOut(encoded);
+        HexEncode(data.data(), data.size(), encodedOut);
+
+        UNIT_ASSERT_EQUAL(encoded.size(), data.size() * 2);
+
+        TString decoded;
+        TStringOutput decodedOut(decoded);
+        HexDecode(encoded.data(), encoded.size(), decodedOut);
+
+        UNIT_ASSERT_EQUAL(decoded, data);
+    }
+
+    Y_UNIT_TEST(TestEncodeDecodeToStream) {
+        TString data = "100ABAcaba500,$%0987123456   \n\t\x01\x02\x03.";
+        TestImpl(data);
+    }
+
+    Y_UNIT_TEST(TestEmpty) {
+        TestImpl("");
+    }
+}