test: check if an exception is thrown by overflow

2025-09-17 09:08:08 +08:00 · 2022-06-08 00:40:28 +09:00
parent 12d0dbc6f4
commit d6efdf7d9e
2 changed files with 19 additions and 0 deletions
--- a/tests/test_parse_floating.cpp
+++ b/tests/test_parse_floating.cpp
@@ -176,3 +176,10 @@ BOOST_AUTO_TEST_CASE(test_nan)
        BOOST_CHECK(std::isnan(r.unwrap().first));
    }
 }
+
+BOOST_AUTO_TEST_CASE(test_overflow)
+{
+    std::istringstream float_overflow (std::string("float-overflow  = 1.0e+1024"));
+    BOOST_CHECK_THROW(toml::parse(float_overflow ), toml::syntax_error);
+    // istringstream >> float does not set failbit in case of underflow.
+}