| 13 | #endif |
| 14 | |
| 15 | int main() { |
| 16 | using namespace boost::ut; |
| 17 | |
| 18 | "log"_test = [] { |
| 19 | boost::ut::log << "pre:" << 42; |
| 20 | expect(42_i == 42) << "message on failure"; |
| 21 | boost::ut::log << "post"; |
| 22 | }; |
| 23 | |
| 24 | #if defined(__cpp_lib_expected) |
| 25 | "lazy log"_test = [] { |
| 26 | // It's not possible to write a test like: |
| 27 | // expect(e.has_value()) << e.error() << fatal; |
| 28 | // This would evaluate e.error() when there is no error, instead lazy |
| 29 | // evaluation is needed. |
| 30 | std::expected<bool, std::string> e = true; |
| 31 | expect(e.has_value()) << [&] { return e.error(); } << fatal; |
| 32 | expect(e.value() == true); |
| 33 | }; |
| 34 | #endif |
| 35 | |
| 36 | #if defined(BOOST_UT_HAS_FORMAT) |
| 37 | "log format"_test = [] { |
| 38 | boost::ut::log("\npre: {}\n", 42); |
| 39 | expect(42_i == 42) << "message on failure"; |
| 40 | boost::ut::log("\npost\n"); |
| 41 | }; |
| 42 | #endif |
| 43 | } |