1//[example_output 2> example 3Running 1 test case... 4unknown location(0): fatal error: in "test_external_interface": std::runtime_error: Undefined Behaviour ahead! 5../doc/examples/example22.run-fail.cpp(17): last checkpoint: Calling 'foo' with i=1 6 7*** 1 failure is detected in the test module "example" 8//]