feat universal: add const for abs deadline propagation

commit_hash:31ec030eed219d28c73adc2f4b359f7606d76777

Author: oigolovanova

core/src/clients/http/request_state.cpp

@@ -973,8 +973,8 @@ void RequestState::UpdateTimeoutHeader() {
     );
 
     if (inherited_original_deadline_.has_value()) {
-        const auto
-            iso_str = utils::datetime::UtcTimestring(*inherited_original_deadline_, utils::datetime::kTaximeterFormat);
+        const auto iso_str =
+            utils::datetime::UtcTimestring(*inherited_original_deadline_, utils::datetime::kAbsoluteDeadlineFormat);
         easy().add_header(
             USERVER_NAMESPACE::http::headers::kXRequestDeadline,
             iso_str,

core/src/server/request/impl/absolute_deadline.cpp

@@ -54,7 +54,7 @@ std::optional<TaskInheritedOriginalDeadline> ParseXRequestDeadlineString(const s
         return std::nullopt;
     }
     try {
-        const auto timestamp = utils::datetime::UtcStringtime(timestring, utils::datetime::kTaximeterFormat);
+        const auto timestamp = utils::datetime::UtcStringtime(timestring, utils::datetime::kAbsoluteDeadlineFormat);
         return std::chrono::time_point_cast<std::chrono::microseconds>(timestamp);
     } catch (const std::exception& exception) {
         LOG_LIMITED_WARNING() << "Can't parse X-Request-Deadline: " << exception.what();

universal/include/userver/utils/datetime_light.hpp

@@ -23,6 +23,8 @@ namespace utils::datetime {
 inline const std::string kRfc3339Format = "%Y-%m-%dT%H:%M:%E*S%Ez";
 /// @snippet utils/datetime/from_string_saturating_test.cpp  kTaximeterFormat
 inline const std::string kTaximeterFormat = "%Y-%m-%dT%H:%M:%E6SZ";
+/// @snippet utils/datetime/from_string_saturating_test.cpp  kAbsoluteDeadlineFormat
+inline const std::string kAbsoluteDeadlineFormat = "%Y-%m-%dT%H:%M:%E6SZ";
 inline constexpr std::time_t kStartOfTheEpoch = 0;
 /// @snippet utils/datetime_test.cpp  kDefaultDriverTimezone
 inline const std::string kDefaultDriverTimezone = "Europe/Moscow";

universal/src/utils/datetime/from_string_saturating_test.cpp

@@ -126,6 +126,15 @@ TEST(FromStringSaturation, kTaximeterFormat) {
     /// [kTaximeterFormat]
 }
 
+TEST(FromStringSaturation, kAbsoluteDeadlineFormat) {
+    /// [kAbsoluteDeadlineFormat]
+    const auto exp = utils::datetime::FromStringSaturating("2014-03-17 02:47:07.000000", "%Y-%m-%d %H:%M:%E*S");
+    const auto tp =
+        utils::datetime::FromStringSaturating("2014-03-17T02:47:07.000000Z", utils::datetime::kAbsoluteDeadlineFormat);
+    EXPECT_EQ(tp, exp);
+    /// [kAbsoluteDeadlineFormat]
+}
+
 TEST(FromStringSaturation, kDefaultFormat) {
     /// [kDefaultFormat]
     const auto exp = utils::datetime::FromStringSaturating("2014-03-17 02:47:07.000000", "%Y-%m-%d %H:%M:%E*S");