$ pytest --markers
@pytest.mark.forked: Always fork for this test.

@pytest.mark.flaky(reruns=1, reruns_delay=0): mark test to re-run up to 'reruns' times. Add a delay of 'reruns_delay' seconds between re-runs.

@pytest.mark.hypothesis: Tests which use hypothesis.

@pytest.mark.allure_label: allure label marker

@pytest.mark.allure_link: allure link marker

@pytest.mark.allure_description: allure description

@pytest.mark.allure_description_html: allure description html

@pytest.mark.filterwarnings(warning): add a warning filter to the given test. see https://docs.pytest.org/en/stable/warnings.html#pytest-mark-filterwarnings

@pytest.mark.skip(reason=None): skip the given test function with an optional reason. Example: skip(reason="no way of currently testing this") skips the test.

@pytest.mark.skipif(condition, ..., *, reason=...): skip the given test function if any of the conditions evaluate to True. Example: skipif(sys.platform == 'win32') skip
s the test if we are on the win32 platform. See https://docs.pytest.org/en/stable/reference.html#pytest-mark-skipif

@pytest.mark.xfail(condition, ..., *, reason=..., run=True, raises=None, strict=xfail_strict): mark the test function as an expected failure if any of the conditions eva
luate to True. Optionally specify a reason for better reporting and run=False if you don't even want to execute the test function. If only specific exception(s) are expe
cted, you can list them in raises, and if the test fails in other ways, it will be reported as a true failure. See https://docs.pytest.org/en/stable/reference.html#pytes
t-mark-xfail

@pytest.mark.parametrize(argnames, argvalues): call a test function multiple times passing in different arguments in turn. argvalues generally needs to be a list of valu
es if argnames specifies only one name or a list of tuples of values if argnames specifies multiple names. Example: @parametrize('arg1', [1,2]) would lead to two calls o
f the decorated test function, one with arg1=1 and another with arg1=2.see https://docs.pytest.org/en/stable/parametrize.html for more info and examples.

@pytest.mark.usefixtures(fixturename1, fixturename2, ...): mark tests as needing all of the specified fixtures. see https://docs.pytest.org/en/stable/fixture.html#usefix
tures

@pytest.mark.tryfirst: mark a hook implementation function such that the plugin machinery will try to call it first/as early as possible.

@pytest.mark.trylast: mark a hook implementation function such that the plugin machinery will try to call it last/as late as possible.

[pytest]
markers =
    smoke: smoke tests
    test: system tests

import pytest

@pytest.mark.smoke
def test_func():
    assert 1==1

@pytest.mark.test
def test_func2():
    assert 1==1

def test_func3():
    assert 1==1

$ pytest -m smoke
========================================================================= test session starts ==========================================================================
platform win32 -- Python 3.9.7, pytest-6.2.5, py-1.10.0, pluggy-1.0.0
rootdir: D:\src\blog\tests, configfile: pytest.ini
plugins: allure-pytest-2.9.43, caterpillar-pytest-0.0.2, hypothesis-6.31.6, forked-1.3.0, rerunfailures-10.1, xdist-2.3.0
collected 3 items / 2 deselected / 1 selected                                                                                                                           

test_demo.py .                                                                                                                                                    [100%]

=================================================================== 1 passed, 2 deselected in 0.04s ====================================================================

def pytest_configure(config):
    config.addinivalue_line(
        "markers", "smoke: smoke test"
    )
    config.addinivalue_line(
        "markers", "test: system test"
    )

import pytest

@pytest.mark.smoke
def test_func():
    assert 1==1

@pytest.mark.test
def test_func2():
    assert 1==1

def test_func3():
    assert 1==1

$ pytest -m test
========================================================================= test session starts ==========================================================================
platform win32 -- Python 3.9.7, pytest-6.2.5, py-1.10.0, pluggy-1.0.0
rootdir: D:\src\blog\tests
plugins: allure-pytest-2.9.43, caterpillar-pytest-0.0.2, hypothesis-6.31.6, forked-1.3.0, rerunfailures-10.1, xdist-2.3.0
collected 3 items / 2 deselected / 1 selected                                                                                                                           

test_demo.py .                                                                                                                                                    [100%]

=================================================================== 1 passed, 2 deselected in 0.02s ====================================================================

import pytest

@pytest.mark.smoke
def test_func():
    assert 1==1

@pytest.mark.test
def test_func2():
    assert 1==1

def test_func3():
    assert 1==1

$ pytest -m smoke
========================================================================= test session starts ==========================================================================
platform win32 -- Python 3.9.7, pytest-6.2.5, py-1.10.0, pluggy-1.0.0
rootdir: D:\src\blog\tests
plugins: allure-pytest-2.9.43, caterpillar-pytest-0.0.2, hypothesis-6.31.6, forked-1.3.0, rerunfailures-10.1, xdist-2.3.0
collected 3 items / 2 deselected / 1 selected                                                                                                                           

test_demo.py .                                                                                                                                                    [100%]

=========================================================================== warnings summary ===========================================================================
test_demo.py:3
  D:\src\blog\tests\test_demo.py:3: PytestUnknownMarkWarning: Unknown pytest.mark.smoke - is this a typo?  You can register custom marks to avoid this warning - for deta
ils, see https://docs.pytest.org/en/stable/mark.html
    @pytest.mark.smoke

test_demo.py:7
  D:\src\blog\tests\test_demo.py:7: PytestUnknownMarkWarning: Unknown pytest.mark.test - is this a typo?  You can register custom marks to avoid this warning - for detai
ls, see https://docs.pytest.org/en/stable/mark.html
    @pytest.mark.test

-- Docs: https://docs.pytest.org/en/stable/warnings.html
============================================================= 1 passed, 2 deselected, 2 warnings in 0.02s ==============================================================

[pytest]
addopts = --strict-markers

import pytest

@pytest.mark.smoke
def test_func():
    assert 1==1

@pytest.mark.test
def test_func2():
    assert 1==1

def test_func3():
    assert 1==1

$ pytest -m smoke
========================================================================= test session starts ==========================================================================
platform win32 -- Python 3.9.7, pytest-6.2.5, py-1.10.0, pluggy-1.0.0
rootdir: D:\src\blog\tests, configfile: pytest.ini
plugins: allure-pytest-2.9.43, caterpillar-pytest-0.0.2, hypothesis-6.31.6, forked-1.3.0, rerunfailures-10.1, xdist-2.3.0
collected 0 items / 1 error                                                                                                                                             

================================================================================ ERRORS ================================================================================
____________________________________________________________________ ERROR collecting test_demo.py _____________________________________________________________________
'smoke' not found in `markers` configuration option
======================================================================= short test summary info ========================================================================
ERROR test_demo.py
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
=========================================================================== 1 error in 0.14s ===========================================================================