Function FormatEpochTimeInMillisAsRFC3339

tests/gtest/gtest-all.cc:5549–5560

Converts the given epoch time in milliseconds to a date string in the RFC3339 format, without the timezone information.

// Converts the given epoch time in milliseconds to a date string in the
// RFC3339 format, without the timezone information.
static std::string FormatEpochTimeInMillisAsRFC3339(TimeInMillis ms) {
  struct tm time_struct;
  if (!PortableLocaltime(static_cast<time_t>(ms / 1000), &time_struct))
    return "";
  // YYYY-MM-DDThh:mm:ss
  return StreamableToString(time_struct.tm_year + 1900) + "-" +
      String::FormatIntWidth2(time_struct.tm_mon + 1) + "-" +
      String::FormatIntWidth2(time_struct.tm_mday) + "T" +
      String::FormatIntWidth2(time_struct.tm_hour) + ":" +
      String::FormatIntWidth2(time_struct.tm_min) + ":" +
      String::FormatIntWidth2(time_struct.tm_sec) + "Z";
}

static inline std::string Indent(size_t width) {
  return std::string(width, ' ');