A timer plugin for nosetests

## Project description

A timer plugin for nosetests that answers the question: how much time does every test take?

## Install

To install the latest release from PyPI:

pip install nose-timer

Or to install the latest development version from Git:

pip install git+git://github.com/mahmoudimus/nose-timer.git

Or to install the latest from source:

git clone https://github.com/mahmoudimus/nose-timer.git
cd nose-timer
pip install .

You can also make a developer install if you plan on modifying the source frequently:

pip install -e .

## Usage

Run nosetests with the --with-timer flag, and you will see a list of the tests and the time spent by each one (in seconds):

myapp.tests.ABigTestCase.test_the_world_is_running: 56.0010s
myapp.tests.ABigTestCase.test_the_rest_of_the_galaxy_is_running: 2356.0010s

### How do I show only the n slowest tests?

For example, to show only the 10 slowest tests, run nosetests with the --timer-top-n flag:

nosetests --with-timer --timer-top-n 10

### How do I color the output and have pretty colors?

You can highlight slower tests using --timer-ok and --timer-warning flags. Default time unit is the second, but you can specify it explicitly, e.g. 1s, 100ms.

• Tests which take less time than --timer-ok will be highlighted in green.

• Tests which take less time than --timer-warning will be highlighted in yellow.

• All other tests will be highlighted in red.

### How do I turn off pretty colors?

In some cases, you may want to disable colors completely. This is done by using the --timer-no-color flag. This is useful when running tests in a headless console.

### How do I filter results by colors?

It is possible to filter results by color. To do so, you can use the --timer-filter flag:

nosetests --with-timer --timer-filter ok
nosetests --with-timer --timer-filter warning
nosetests --with-timer --timer-filter error

Or to apply several filters at once:

nosetests --with-timer --timer-filter warning,error

### How do I cause slow tests to fail?

You can cause any tests that exceed a threshold to fail by specifying the --timer-fail option:

• If you specify --timer-fail warning, slow tests which would be displayed as a warning (i.e. that take more time than --timer-ok) will fail.

• If you specify --timer-fail error, slow tests which would be displayed as an error (i.e. that take more time than --timer-warning) will fail.

For example, to fail any tests that take more than 5 seconds:

nosetests --with-timer --timer-warning 5.0 --timer-fail error

### How do I export the results ?

Use the --timer-json-file <myfile.json> flag, it will save the result in the following format:

{
'tests':
{
'<test key 1>':
{
'status': 'success'|'error'|'fail,
'time': <float in s>
},
'<test key 2>':
{
'status': 'success'|'error'|'fail,
'time': <float in s>
},
....
}

## Contribute

• Check for open issues or open a fresh issue to start a discussion around a feature idea or a bug.

• Fork the repository on GitHub to start making your changes to the master branch (or branch off of it).

• Write a test which shows that the bug was fixed or that the feature works as expected.

• Send a pull request and bug the maintainer until it gets merged and published.

• Make sure to add yourself to the author’s file in setup.py and the Contributors section below :)

## Project details

Uploaded source