string with_underscores(self_path);
  std::replace(with_underscores.begin(), with_underscores.end(), '/', '_');
  std::replace(with_underscores.begin(), with_underscores.end(), '.', '_');
  guard_ = toUpperSnake(with_underscores) + "_";
}

void GuardRenderer::Open() {
  CodeLine("#ifndef $0", guard_);
  CodeLine("#define $0", guard_);
  BlankLine();
}

void GuardRenderer::Close() {
  BlankLine();

  EXPECT_EQ(expected.lower_camel, toLowerCamel(str, delimiter));
  EXPECT_EQ(expected.lower_snake, toLowerSnake(str, delimiter));
  EXPECT_EQ(expected.upper_camel, toUpperCamel(str, delimiter));
  EXPECT_EQ(expected.upper_snake, toUpperSnake(str, delimiter));
}

void TestAllVariations(Variations variations, char delimiter = '_') {
  TestSingleVariation(variations.lower_camel, variations, delimiter);

string toLowerCamel(const string &s, const char delimiter = '_');
string toLowerSnake(const string &s, const char delimiter = '_');
string toUpperCamel(const string &s, const char delimiter = '_');
string toUpperSnake(const string &s, const char delimiter = '_');

}  // namespace generator
}  // namespace tensorflow

  return FormatStringCase(s, LOWER_SNAKE, delimiter);
}
string toUpperCamel(const string &s, const char delimiter) {
  return FormatStringCase(s, UPPER_CAMEL, delimiter);
}
string toUpperSnake(const string &s, const char delimiter) {
  return FormatStringCase(s, UPPER_SNAKE, delimiter);
}

}  // namespace generator