//[example_output
> example --log_level=all
Running 2 test cases...
Entering test module "example"
test.cpp:20: Entering test case "test"
unknown location:0: fatal error: in "test": std::runtime_error: negative value not allowed
test.cpp:20: last checkpoint: "test" entry.
test.cpp:20: Leaving test case "test"; testing time: 247us
test.cpp:26: Entering test case "test2"
test.cpp:28: info: check true has passed
test.cpp:26: Leaving test case "test2"; testing time: 103us
Leaving test module "example"; testing time: 492us

*** 1 failure is detected in the test module "example"
//]