pytest-print adds the printer fixture you can use to print messages to the user (directly to the pytest runner, not stdout)
Project description
pytest-print
Allows to print extra content onto the PyTest reporting. This can be used for example to report sub-steps for long running tests, or to print debug information in your tests when you cannot debug the code.
install
pip install pytest-print
The plugin provides ability to print information during the tests runs.
flags
--print
by default the module activates print when pytest verbosity is greater than zero, this allows to bypass this and force print irrespective of the verbosity--print-relative-time
will print the relative time since the start of the test (display how long it takes to reach prints)
use cases
sub-step reporting
For tests that are long running this can provide feedback to the end-user that what is just happening in the background.
def test_server_parallel_requests(printer, tmpdir):
printer("create virtual environment into {}".format(tmpdir))
create_virtual_environment(tmpdir)
printer("start server from virtual env")
start_server(tmpdir)
printer("do the parallel request test")
parallel_requests()
$ py.test --vv
============================= test session starts ==============================
platform linux -- Python 3.6.4, pytest-3.5.0, py-1.5.3, pluggy-0.6.0
collecting ... collected 1 item
test_printer_progress.py::test_server_parallel_requests
create virtual environment
start server from virtual env
do the parallel request test
PASSED [100%]
=========================== 1 passed in 0.02 seconds ===========================
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