message: Remove irrelevant cases
diff: @@ -87,9 +87,9 @@ protected:
  #define DECLARE_TEST_GROUP(CharType) \
  \
  -using Strings_##CharType = Strings<CharType>; \
  +using StringOf##CharType = Strings<CharType>; \
  \
  -TEST_P(Strings_##CharType, Fill){ \
  +TEST_P(StringOf##CharType, Fill){ \
  fill( \
  std::get<0>(GetParam()), \
  std::get<1>(GetParam()), \
  @@ -99,7 +99,7 @@ TEST_P(Strings_##CharType, Fill){ \
  \
  INSTANTIATE_TEST_SUITE_P( \
  BufferFilling, \
  - Strings_##CharType, \
  + StringOf##CharType, \
  ::testing::Combine( \
  ::testing::Range<std::size_t>(0, 10), /* buffer sizes */ \
  ::testing::Range<std::size_t>(0, 10), /* data sizes */ \
  @@ -107,18 +107,10 @@ INSTANTIATE_TEST_SUITE_P( \
  ) \
  );
  -using signed_char = signed char;
  -using unsigned_char = unsigned char;
  -using unsigned_short = unsigned short;
  -
  -DECLARE_TEST_GROUP(char);
  -DECLARE_TEST_GROUP(signed_char);
  -DECLARE_TEST_GROUP(unsigned_char);
  -DECLARE_TEST_GROUP(wchar_t);
  -#if !defined(_MSC_VER) || _MSC_VER >= 1920
  -DECLARE_TEST_GROUP(unsigned_short);
  -DECLARE_TEST_GROUP(char16_t);
  -DECLARE_TEST_GROUP(char32_t);
  -#endif
  +using SQLNarrowChar = SQLCHAR;
  +using SQLWideChar = SQLWCHAR;
  +
  +DECLARE_TEST_GROUP(SQLNarrowChar);
  +DECLARE_TEST_GROUP(SQLWideChar);
  #undef DECLARE_TEST_GROUP
  