Ability to put output on stderr

[jack1902]

Currently, it is possible to use mock_set_output to put output on stdout which is done by the below lines within the mock.

bats-mock/src/bats-mock.bash

Lines 40 to 44 in 48fce74

	if [[ -e "\${mock}.output.\${call_num}" ]]; then
	cat "\${mock}.output.\${call_num}"
	else
	cat "\${mock}.output"
	fi

This is extremely useful for cases whereby you want to control output to test specific cases of output on stdout, but it means scripts that check what is on stderr are left in a situation that you need to do something like 2>&1 to enable mock_set_output to work in its current form.

It would be really useful to be able to do something like mock_set_stderr "${mock_YOURMOCK}" "message" <optional_call>, which would effectively enable a user to specify both stdout and stderr for specific calls like you already can for mock_set_output

[AlexSkrypnyk]

#23

You can use a step runner for this https://bats-helpers.drevops.com/step-runner