intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 18 insertions, 0 deletions

diff --git a/library/cpp/deprecated/mapped_file/ut/mapped_file_ut.cpp b/library/cpp/deprecated/mapped_file/ut/mapped_file_ut.cpp
new file mode 100644
index 0000000000..afbd5b3358
--- /dev/null
+++ b/library/cpp/deprecated/mapped_file/ut/mapped_file_ut.cpp
@@ -0,0 +1,18 @@
+#include <library/cpp/deprecated/mapped_file/mapped_file.h>
+#include <library/cpp/testing/unittest/registar.h>
+
+#include <util/system/fs.h>
+
+Y_UNIT_TEST_SUITE(TMappedFileTest) {
+    static const char* FileName_("./mappped_file");
+    Y_UNIT_TEST(TestFileMapEmpty) {
+        TFile file(FileName_, CreateAlways | WrOnly);
+        file.Close();
+
+        TMappedFile map;
+        map.init(FileName_);
+        map.getData(0);
+
+        NFs::Remove(FileName_);
+    }
+};