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How to use pytest_collection_modifyitems method in Pytest

Best Python code snippet using pytest

implicit_mark.py

Source:implicit_mark.py

...30#-----------------------------------------------------------------------------31def pytest_addoption(parser):32    parser.addini("implicit_marker",33                  "An implicit marker to assign to any test otherwise unmarked")34def pytest_collection_modifyitems(items, config):35    implicit_marker = config.getini("implicit_marker")36    if not implicit_marker:37        return38    markers = []39    for line in config.getini("markers"):40        mark, rest = line.split(":", 1)41        if '(' in mark:42            mark, rest = mark.split("(", 1)43        markers.append(mark)44    all_markers = ' or '.join(markers)45    if not all_markers:46        return47    for item in items:48        if not matchmark(item, all_markers):...

__impl.py

Source:__impl.py

...19    Args:20        config (_pytest.config.Config): current pytest config to modify21    """22    config.option.keepduplicates = True23def pytest_collection_modifyitems(24    session: pytest.Session,25    config: _pytest.config.Config,26    items: List[ExtendedItem],27) -> None:28    """29    pytest_collection_modifyitems hook to drop non-package versions of duplicate30    tests.31    Args:32        session (pytest.Session): current pytest Session33        config (_pytest.config.Config): current pytest Config34        items (List[ExtendedItem]): list of discovered tests35    """36    session = session  # ignore unused var warning37    seen_best_nodes: Dict[str, ExtendedItem] = {}...

__init__.py

Source:__init__.py

1# def pytest_collection_modifyitems(session, config, items) :2#     for item in items:3#         item.name = item.name.encode('utf-8').decode('unicode-escape')4#         item._nodeid = item.nodeid.encode('utf-8').decode('unicode-escape')5import logging6from typing import Tuple, Optional7import pytest8logging.basicConfig(level=logging.INFO,9                    # æ¥å¿æ ¼å¼10                    # æ¶é´ãä»£ç æå¨æä»¶åãä»£ç è¡å·ãæ¥å¿çº§å«ååãæ¥å¿ä¿¡æ¯11                    format='%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s',12                    # æå°æ¥å¿çæ¶é´13                    datefmt='%a, %d %b %Y %H:%M:%S',14                    # æ¥å¿æä»¶åæ¾çç®å½ï¼ç®å½å¿é¡»åå¨ï¼åæ¥å¿æä»¶å15                    filename='report.log',16                    # æå¼æ¥å¿æä»¶çæ¹å¼17                    filemode='w'18                    )19logger = logging.getLogger(__name__)20def pytest_collection_modifyitems(items):21    for item in items:22        item.name = item.name.encode('utf-8').decode('unicode_escape')23        item._nodeid = item._nodeid.encode('utf-8').decode('unicode_escape')24        logger.info(f"item.name : {item.name}")...

test_plugin.py

Source:test_plugin.py

...14    sha1.hexdigest = mock.Mock(side_effect=['1', '2', '3', '4'])15    hashlib.sha1 = mock.Mock(return_value=sha1)16    config = mock.Mock()17    read_circleci_env_variables_mock.return_value = (2, 0)18    pytest_collection_modifyitems('session', config, items)19    config.hook.pytest_deselected.assert_called_with(items=[item1, item3])20@mock.patch('pytest_circleci.plugin.hashlib')21@mock.patch('pytest_circleci.plugin.read_circleci_env_variables')22def test_second_container(read_circleci_env_variables_mock, hashlib):23    item1 = Item()24    item2 = Item()25    item3 = Item()26    item4 = Item()27    items = [item1, item2, item3, item4]28    sha1 = mock.sentinel29    sha1.hexdigest = mock.Mock(side_effect=['1', '2', '3', '4'])30    hashlib.sha1 = mock.Mock(return_value=sha1)31    config = mock.Mock()32    read_circleci_env_variables_mock.return_value = (2, 1)33    pytest_collection_modifyitems('session', config, items)...

Pytest Tutorial

Looking for an in-depth tutorial around pytest? LambdaTest covers the detailed pytest tutorial that has everything related to the pytest, from setting up the pytest framework to automation testing. Delve deeper into pytest testing by exploring advanced use cases like parallel testing, pytest fixtures, parameterization, executing multiple test cases from a single file, and more.

Chapters

What is pytest
Pytest installation: Want to start pytest from scratch? See how to install and configure pytest for Python automation testing.
Run first test with pytest framework: Follow this step-by-step tutorial to write and run your first pytest script.
Parallel testing with pytest: A hands-on guide to parallel testing with pytest to improve the scalability of your test automation.
Generate pytest reports: Reports make it easier to understand the results of pytest-based test runs. Learn how to generate pytest reports.
Pytest Parameterized tests: Create and run your pytest scripts while avoiding code duplication and increasing test coverage with parameterization.
Pytest Fixtures: Check out how to implement pytest fixtures for your end-to-end testing needs.
Execute Multiple Test Cases: Explore different scenarios for running multiple test cases in pytest from a single file.
Stop Test Suite after N Test Failures: See how to stop your test suite after n test failures in pytest using the @pytest.mark.incremental decorator and maxfail command-line option.