Run the supplied function after every child test, and any of those
child tests' children, and so on.
The test that has just completed is passed in as an argument to the
function. Note that at this point, the test is fully ended, so attempting
to call assertion methods on it will raise an error.
Run the supplied function after every child test, and any of those child tests' children, and so on.
The test that has just completed is passed in as an argument to the function. Note that at this point, the test is fully ended, so attempting to call assertion methods on it will raise an error.