Add tests for library/cpp/int128 into listfile (#313) (#315)

Author: tsayukov

library/cpp/int128/CMakeLists.txt

@@ -1,3 +1,7 @@
+if (YDB_SDK_TESTS)
+  add_subdirectory(ut)
+endif()
+
 _ydb_sdk_add_library(int128)
 
 target_sources(int128

library/cpp/int128/ut/CMakeLists.txt

@@ -0,0 +1,105 @@
+#[=[ TODO: fix bug with std::signbit
+add_ydb_test(NAME int128-int128_ut
+  SOURCES
+   int128_ut.cpp
+  LINK_LIBRARIES
+    int128
+    cpp-testing-unittest_main
+  LABELS
+    unit
+)
+#]=]
+
+add_ydb_test(NAME int128-int128_typetraits_ut
+  SOURCES
+    int128_typetraits_ut.cpp
+  LINK_LIBRARIES
+    int128
+    cpp-testing-unittest_main
+  LABELS
+    unit
+)
+
+add_ydb_test(NAME int128-i128_ut
+  SOURCES
+    i128_ut.cpp
+  LINK_LIBRARIES
+    int128
+    cpp-testing-unittest_main
+  LABELS
+    unit
+)
+
+add_ydb_test(NAME int128-i128_and_intrinsic_identity_ut
+  SOURCES
+    i128_and_intrinsic_identity_ut.cpp
+    int128_ut_helpers.cpp
+  LINK_LIBRARIES
+    int128
+    cpp-testing-unittest_main
+  LABELS
+    unit
+)
+
+add_ydb_test(NAME int128-int128_via_intrinsic_ut
+  SOURCES
+    int128_via_intrinsic_ut.cpp
+  LINK_LIBRARIES
+    int128
+    cpp-testing-unittest_main
+  LABELS
+    unit
+)
+
+add_ydb_test(NAME int128-int128_old_ut
+  SOURCES
+    int128_old_ut.cpp
+    int128_ut_helpers.cpp
+  LINK_LIBRARIES
+    int128
+    cpp-testing-unittest_main
+  LABELS
+    unit
+)
+
+add_ydb_test(NAME int128-i128_division_ut
+  SOURCES
+    i128_division_ut.cpp
+  LINK_LIBRARIES
+    int128
+    cpp-testing-unittest_main
+  LABELS
+    unit
+)
+
+#[=[ TODO: fix bug with std::signbit
+add_ydb_test(NAME int128-i128_type_traits_ut
+  SOURCES
+    i128_type_traits_ut.cpp
+  LINK_LIBRARIES
+    int128
+    cpp-testing-unittest_main
+  LABELS
+    unit
+)
+#]=]
+
+add_ydb_test(NAME int128-i128_comparison_ut
+  SOURCES
+    i128_comparison_ut.cpp
+  LINK_LIBRARIES
+    int128
+    cpp-testing-unittest_main
+  LABELS
+    unit
+)
+
+add_ydb_test(NAME int128-ui128_division_ut
+  SOURCES
+    ui128_division_ut.cpp
+  LINK_LIBRARIES
+    int128
+    cpp-testing-unittest_main
+  LABELS
+    unit
+)