Python Test Runner (ptr) was born to run tests in an opinionated way, within arbitrary code repositories.
ptr
supports many Python projects with unit tests defined in their setup.(cfg|py)
files per repository.
ptr
allows developers to test multiple projects/modules in one Python environment through the use of a single test virtual environment.
ptr
requires>=
python 3.7ptr
itself usesptr
to run its tests ππΌptr
is supported and tested on Linux, MacOS + Windows Operating Systems
By adding ptr
configuration to your either of your pyproject.toml
, setup.cfg
or setup.py
you can have ptr
perform the following,
per test suite, in parallel:
- run your test suite
- check and enforce coverage requirements (via coverage),
- format code (via black)
- perform static type analysis (via mypy)
- Install
ptr
into you virtualenvpip install ptr
- Ensure your tests have a base file that can be executed directly
- i.e.
python3 test.py
(possibly usingunittest.main()
)
- i.e.
- After adding
ptr_params
to setup.py (see example below), run:
cd repo
ptr
I'm glad you ask. Under the covers ptr
performs:
- Recursively searches for
setup.(cfg|py)
files fromBASE_DIR
(defaults to your "current working directory" (CWD))- AST parses out the config for each
setup.py
test requirements - If a
pyproject.toml
orsetup.cfg
exists, load via configparser/tomli and prefer if a[ptr]
section exists
- AST parses out the config for each
- Creates a Python Virtual Environment (OPTIONALLY pointed at an internal PyPI mirror)
- Runs
ATONCE
tests suites in parallel (i.e. per setup.(cfg|ptr)) - All steps will be run for each suite and ONLY FAILED runs will have output written to stdout
To use ptr
all you need to do is cd to your project or set the base dir via -b
and execute:
$ ptr [-dk] [-b some/path] [--venv /tmp/existing_venv]
For faster runs when testing, it is recommended to reuse a Virtual Environment:
-k
- To keep the virtualenv created byptr
.- Use
--venv VENV_PATH
to reuse to an existing virtualenv created by the user.
usage: ptr.py [-h] [-a ATONCE] [-b BASE_DIR] [-d] [-e] [-k] [-m MIRROR]
[--print-cov] [--print-non-configured]
[--progress-interval PROGRESS_INTERVAL] [--run-disabled]
[--stats-file STATS_FILE] [--system-site-packages] [--venv VENV]
[--venv-timeout VENV_TIMEOUT]
optional arguments:
-h, --help show this help message and exit
-a ATONCE, --atonce ATONCE
How many tests to run at once [Default: 6]
-b BASE_DIR, --base-dir BASE_DIR
Path to recursively look for setup.py files [Default:
/Users/cooper/repos/ptr]
-d, --debug Verbose debug output
-e, --error-on-warnings
Have Python warnings raise DeprecationWarning on tests
run
-k, --keep-venv Do not remove created venv
-m MIRROR, --mirror MIRROR
URL for pip to use for Simple API [Default:
https://pypi.org/simple/]
--print-cov Print modules coverage report
--print-non-configured
Print modules not configured to run ptr
--progress-interval PROGRESS_INTERVAL
Seconds between status update on test running
[Default: Disabled]
--run-disabled Force any disabled tests suites to run
--stats-file STATS_FILE
JSON statistics file [Default: /var/folders/tc/hbwxh76
j1hn6gqjd2n2sjn4j9k1glp/T/ptr_stats_12510]
--system-site-packages
Give the virtual environment access to the system
site-packages dir
--venv VENV Path to venv to reuse
--venv-timeout VENV_TIMEOUT
Timeout in seconds for venv creation + deps install
[Default: 120]
ptr
is configured by placing directives in one or more of the following files. .ptrconfig
provides
base configuration and default values for all projects in the repository, while each setup.(cfg|py)
overrides the base configuration for the respective packages they define.
ptr
supports a general config in ini
(ConfigParser) format.
A .ptrconfig
file can be placed at the root of any repository or in any directory within your repository.
The first .ptrconfig
file found via a recursive walk to the root ("/" in POSIX systems) will be used.
Please refer to ptrconfig.sample
for the options available.
This is per project in your repository. A simple example, based on ptr
itself:
# Specific Python Test Runner (ptr) params for Unit Testing Enforcement
ptr_params = {
# Where mypy will run to type check your program
"entry_point_module": "ptr",
# Base Unittest file
"test_suite": "ptr_tests",
"test_suite_timeout": 300,
# Relative path from setup.py to module (e.g. ptr == ptr.py)
"required_coverage": {"ptr.py": 99, "TOTAL": 99},
# Run `black --check` or not
"run_black": False,
# Run mypy or not
"run_mypy": True,
}
This is per project in your repository and if exists is preferred over setup.py
and setup.cfg
.
Please refer to pyproject.toml
for the options available + format.
This is per project in your repository and if exists is preferred over setup.py
.
Please refer to setup.cfg.sample
for the options available + format.
When enabled, (in setup.(cfg|py)
) mypy can support using a custom mypy.ini
for each setup.py (module) defined.
To have ptr
run mypy using you config:
- create a
mypy.ini
in the same directory as yoursetup.py
- OR add [mypy] section to your
setup.cfg
mypy
Configuration Documentation can be found here
- An example
setup.cfg
can be seen here.
Here are some example runs.
Here is what you want to see in your CI logs!
[2019-02-06 21:51:45,442] INFO: Starting ptr.py (ptr.py:782)
[2019-02-06 21:51:59,471] INFO: Successfully created venv @ /var/folders/tc/hbwxh76j1hn6gqjd2n2sjn4j9k1glp/T/ptr_venv_24397 to run tests (14s) (ptr.py:547)
[2019-02-06 21:51:59,472] INFO: Installing /Users/cooper/repos/ptr/setup.py + deps (ptr.py:417)
[2019-02-06 21:52:00,726] INFO: Running /Users/cooper/repos/ptr/ptr_tests.py tests via coverage (ptr.py:417)
[2019-02-06 21:52:04,153] INFO: Analyzing coverage report for /Users/cooper/repos/ptr/setup.py (ptr.py:417)
[2019-02-06 21:52:04,368] INFO: Running mypy for /Users/cooper/repos/ptr/setup.py (ptr.py:417)
[2019-05-03 14:54:09,915] INFO: Running flake8 for /Users/cooper/repos/ptr/setup.py (ptr.py:417)
[2019-05-03 14:54:10,422] INFO: Running pylint for /Users/cooper/repos/ptr/setup.py (ptr.py:417)
[2019-05-03 14:54:14,020] INFO: Running pyre for /Users/cooper/repos/ptr/setup.py (ptr.py:417)
[2019-02-06 21:52:07,733] INFO: /Users/cooper/repos/ptr/setup.py has passed all configured tests (ptr.py:509)
-- Summary (total time 22s):
β
PASS: 1
β FAIL: 0
βοΈ TIMEOUT: 0
π© TOTAL: 1
-- 1 / 1 (100%) `setup.py`'s have `ptr` tests running
Here are some examples of runs failing. Any "step" can fail. All output is predominately the underlying tool.
[2019-02-06 21:53:58,121] INFO: Starting ptr.py (ptr.py:782)
[2019-02-06 21:53:58,143] INFO: Installing /Users/cooper/repos/ptr/setup.py + deps (ptr.py:417)
[2019-02-06 21:53:59,698] INFO: Running /Users/cooper/repos/ptr/ptr_tests.py tests via coverage (ptr.py:417)
-- Summary (total time 5s):
β
PASS: 0
β FAIL: 1
βοΈ TIMEOUT: 0
π© TOTAL: 1
-- 1 / 1 (100%) `setup.py`'s have `ptr` tests running
-- Failure Output --
/Users/cooper/repos/ptr/setup.py (failed 'tests_run' step):
...F....................
======================================================================
FAIL: test_config (__main__.TestPtr)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/Users/cooper/repos/ptr/ptr_tests.py", line 125, in test_config
self.assertEqual(len(sc["ptr"]["venv_pkgs"].split()), 4)
AssertionError: 5 != 4
----------------------------------------------------------------------
Ran 24 tests in 3.221s
FAILED (failures=1)
[2019-02-06 21:55:42,947] INFO: Starting ptr.py (ptr.py:782)
[2019-02-06 21:55:42,969] INFO: Installing /Users/cooper/repos/ptr/setup.py + deps (ptr.py:417)
[2019-02-06 21:55:44,920] INFO: Running /Users/cooper/repos/ptr/ptr_tests.py tests via coverage (ptr.py:417)
[2019-02-06 21:55:49,628] INFO: Analyzing coverage report for /Users/cooper/repos/ptr/setup.py (ptr.py:417)
-- Summary (total time 7s):
β
PASS: 0
β FAIL: 1
βοΈ TIMEOUT: 0
π© TOTAL: 1
-- 1 / 1 (100%) `setup.py`'s have `ptr` tests running
-- Failure Output --
/Users/cooper/repos/ptr/setup.py (failed 'analyze_coverage' step):
The following files did not meet coverage requirements:
ptr.py: 84 < 99 - Missing: 146-147, 175, 209, 245, 269, 288-291, 334-336, 414-415, 425-446, 466, 497, 506, 541-543, 562, 611-614, 639-688
[2019-02-06 22:34:20,029] INFO: Starting ptr.py (ptr.py:804)
[2019-02-06 22:34:20,060] INFO: Installing /Users/cooper/repos/ptr/setup.py + deps (ptr.py:430)
[2019-02-06 22:34:21,614] INFO: Running /Users/cooper/repos/ptr/ptr_tests.py tests via coverage (ptr.py:430)
[2019-02-06 22:34:25,208] INFO: Analyzing coverage report for /Users/cooper/repos/ptr/setup.py (ptr.py:430)
[2019-02-06 22:34:25,450] INFO: Running mypy for /Users/cooper/repos/ptr/setup.py (ptr.py:430)
[2019-02-06 22:34:26,422] INFO: Running black for /Users/cooper/repos/ptr/setup.py (ptr.py:430)
-- Summary (total time 7s):
β
PASS: 0
β FAIL: 1
βοΈ TIMEOUT: 0
π© TOTAL: 1
-- 1 / 1 (100%) `setup.py`'s have `ptr` tests running
-- Failure Output --
/Users/cooper/repos/ptr/setup.py (failed 'black_run' step):
would reformat /Users/cooper/repos/ptr/ptr.py
All done! π₯ π π₯
1 file would be reformatted, 4 files would be left unchanged.
[2019-02-06 22:35:39,480] INFO: Starting ptr.py (ptr.py:802)
[2019-02-06 22:35:39,531] INFO: Installing /Users/cooper/repos/ptr/setup.py + deps (ptr.py:428)
[2019-02-06 22:35:41,203] INFO: Running /Users/cooper/repos/ptr/ptr_tests.py tests via coverage (ptr.py:428)
[2019-02-06 22:35:45,156] INFO: Analyzing coverage report for /Users/cooper/repos/ptr/setup.py (ptr.py:428)
[2019-02-06 22:35:45,413] INFO: Running mypy for /Users/cooper/repos/ptr/setup.py (ptr.py:428)
-- Summary (total time 6s):
β
PASS: 0
β FAIL: 1
βοΈ TIMEOUT: 0
π© TOTAL: 1
-- 1 / 1 (100%) `setup.py`'s have `ptr` tests running
-- Failure Output --
/Users/cooper/repos/ptr/setup.py (failed 'mypy_run' step):
/Users/cooper/repos/ptr/ptr.py: note: In function "_write_stats_file":
/Users/cooper/repos/ptr/ptr.py:179: error: Argument 1 to "open" has incompatible type "Path"; expected "Union[str, bytes, int]"
/Users/cooper/repos/ptr/ptr.py: note: In function "run_tests":
/Users/cooper/repos/ptr/ptr.py:700: error: Argument 1 to "_write_stats_file" has incompatible type "str"; expected "Path"
cooper-mbp1:ptr cooper$ /tmp/tp/bin/ptr --venv /var/folders/tc/hbwxh76j1hn6gqjd2n2sjn4j9k1glp/T/ptr_venv_49117
[2019-05-03 14:51:43,623] INFO: Starting /tmp/tp/bin/ptr (ptr.py:1023)
[2019-05-03 14:51:43,657] INFO: Installing /Users/cooper/repos/ptr/setup.py + deps (ptr.py:565)
[2019-05-03 14:51:44,840] INFO: Running ptr_tests tests via coverage (ptr.py:565)
[2019-05-03 14:51:47,361] INFO: Analyzing coverage report for /Users/cooper/repos/ptr/setup.py (ptr.py:565)
[2019-05-03 14:51:47,559] INFO: Running mypy for /Users/cooper/repos/ptr/setup.py (ptr.py:565)
[2019-05-03 14:51:47,827] INFO: Running black for /Users/cooper/repos/ptr/setup.py (ptr.py:565)
[2019-05-03 14:51:47,996] INFO: Running flake8 for /Users/cooper/repos/ptr/setup.py (ptr.py:565)
[2019-05-03 14:51:48,566] INFO: Running pylint for /Users/cooper/repos/ptr/setup.py (ptr.py:565)
[2019-05-03 14:51:52,301] INFO: Running pyre for /Users/cooper/repos/ptr/setup.py (ptr.py:565)
[2019-05-03 14:51:54,983] INFO: /Users/cooper/repos/ptr/setup.py has passed all configured tests (ptr.py:668)
-- Summary (total time 11s):
β
PASS: 1
β FAIL: 0
βοΈ TIMEOUT: 0
π© TOTAL: 1
-- 1 / 1 (100%) `setup.py`'s have `ptr` tests running
-- Failure Output --
/Users/cooper/repos/ptr/setup.py (failed 'pyre_run' step):
2019-05-03 14:54:14,173 INFO No binary specified, looking for `pyre.bin` in PATH
2019-05-03 14:54:14,174 INFO Found: `/var/folders/tc/hbwxh76j1hn6gqjd2n2sjn4j9k1glp/T/ptr_venv_49117/bin/pyre.bin`
... *(truncated)* ...
ptr.py:602:25 Undefined name [18]: Global name `stdout` is not defined, or there is at least one control flow path that doesn't define `stdout`.
If your imports are not making usort
happy it would look like this:
[2021-05-29 09:30:56,044] INFO: Starting /tmp/tp/bin/ptr (ptr.py:1129)
[2021-05-29 09:30:56,051] INFO: Installing /Users/cooper/repos/ptr/setup.py + deps (ptr.py:637)
[2021-05-29 09:30:56,587] INFO: Running ptr_tests tests via coverage (ptr.py:637)
[2021-05-29 09:30:58,238] INFO: Analyzing coverage report for /Users/cooper/repos/ptr/setup.py (ptr.py:637)
[2021-05-29 09:30:58,341] INFO: Running mypy for /Users/cooper/repos/ptr/setup.py (ptr.py:637)
[2021-05-29 09:30:58,436] INFO: Running usort for /Users/cooper/repos/ptr/setup.py (ptr.py:637)
-- Summary (total time 2s):
β
PASS: 0
β FAIL: 1
οΈβ TIMEOUT: 0
π DISABLED: 0
π© TOTAL: 1
-- 1 / 1 (100%) `setup.py`'s have `ptr` tests running
-- Failure Output --
/Users/cooper/repos/ptr/setup.py (failed 'usort_run' step):
Would sort /Users/cooper/repos/ptr/setup.py
ptr
developers recommend that if you want output, please cause a test to fail- e.g.
raise ZeroDivisionError
- e.g.
- Another recommended way is to run your tests with the default
setup.py test
using aptr
created venv:cd to/my/code
/tmp/venv/bin/python setup.py test
- Just simply hard set the version in the .ptrconfig in your repo or use
requirements.txt
to pre-install before runningptr
- All
pip
PEP 440 version specifiers are supported
ptr
attempts to update from a PyPI compatible mirror (PEP 381) or PyPI itself- Running a package cache or local mirror can greatly increase speed. Example software to do this:
- bandersnatch: Can do selected or FULL PyPI mirrors. The maintainer is also devilishly good looking.
- devpi: Can be ran and used to proxy packages locally when pip goes out to grab your dependencies.
- Please ensure you're using the
-k
or--venv
option to no recreate a virtualenv each run when debugging your tests!
pyre
(pyre-check on PyPI) does not ship a Windows wheel with the ocaml pyre.bin
coverage
5.0 introduced using sqlite and we don't want to have a mix of 4.x and 5.x for ptr- < 5.0 could possibly still work as we now ensure to run each projects tests from setup_py.parent CWD with subprocess
To chat in real time, hit us up on IRC. Otherwise, GitHub issues are always welcome!
IRC: #pythontestrunner
on FreeNode
See the CONTRIBUTING file for how to help out.
ptr
is MIT licensed, as found in the LICENSE file.
Copyright Β© Meta Platforms, Inc. and affiliates