Function TEST

test/cpp/utils/exception_test.cc:22–26

#include "gtest/gtest.h"

TEST(error_message_test, optional_with_value) {
  std::optional<int> value = 42;
  std::string msg = common::ErrorMessage("value=", value).to_string();
  EXPECT_EQ(msg, "value=42");
}

TEST(error_message_test, optional_without_value) {
  std::optional<int> value = std::nullopt;