Add tests for library/cpp/yt/yson_string into listfile (#210)

Author: tsayukov

library/cpp/yt/CMakeLists.txt

@@ -5,6 +5,7 @@ if (YDB_SDK_TESTS)
   add_subdirectory(misc/unittests)
   add_subdirectory(small_containers/unittests)
   add_subdirectory(string/unittests)
+  add_subdirectory(yson_string/unittests)
 endif()
 
 _ydb_sdk_add_library(yt-assert)

library/cpp/yt/yson_string/unittests/CMakeLists.txt

@@ -0,0 +1,21 @@
+#[=[
+TODO: missing `library/cpp/testing/gtest_extensions`
+add_ydb_test(NAME yt-yson_string-convert_ut GTEST
+  SOURCES
+    convert_ut.cpp
+  LINK_LIBRARIES
+    yt-yson_string
+    GTest::gtest_main
+  LABELS
+    unit
+)
+#]=]
+add_ydb_test(NAME yt-yson_string-saveload_ut GTEST
+  SOURCES
+    saveload_ut.cpp
+  LINK_LIBRARIES
+    yt-yson_string
+    GTest::gtest_main
+  LABELS
+    unit
+)