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Install the pytest plug-in

C:\ Users\ lifeng01 > pip install pytest-playwrightCollecting pytest-playwright Using cached pytest_playwright-0.2.2-py3-none-any.whl (9.8 kB) Requirement already satisfied: pytest in d:\ python\ python37\ lib\ site-packages (from pytest-playwright) (6.2.5) Requirement already satisfied: playwright > = 1.13 in d:\ python\ python37\ lib\ site-packages (from pytest-playwright) Requirement already satisfied: python-slugify in d:\ python\ python37\ lib \ site-packages (from pytest-playwright) (5.0.2) Requirement already satisfied: pytest-base-url in d:\ python\ python37\ lib\ site-packages (from pytest-playwright) (1.4.2) Requirement already satisfied: typing-extensions in d:\ python\ python37\ lib\ site-packages (from playwright > = 1.13-> pytest-playwright) (3.7.4.3) Requirement already satisfied: pyee > = 8.0.1 in d:\ python\ python37\ lib\ site-packages (from playwright > = 1. 13-> pytest-playwright) (8.2.2) Requirement already satisfied: websockets > = 8.1 in d:\ python\ python37\ lib\ site-packages (from playwright > = 1.13-> pytest-playwright) (9.1) Requirement already satisfied: greenlet > = 1.0.0 in d:\ python\ python37\ lib\ site-packages (from playwright > = 1.13-> pytest-playwright) (1.0.0) Requirement already satisfied: atomicwrites > = 1.0in d:\ python\ python37\ lib\ site-packages (from pytest- > pytest-playwright) 1.3.0) Requirement already satisfied: attrs > = 19.2.0 in d:\ python\ python37\ lib\ site-packages (from pytest- > pytest-playwright) (19.3.0) Requirement already satisfied: py > = 1.8.2 in d:\ python\ python37\ lib\ site-packages (from pytest- > pytest-playwright) (1.9.0) Requirement already satisfied: toml in d:\ python\ python37\ lib\ site-packages (from pytest- > pytest-playwright) (0.10.0) Requirement already satisfied: Colorama in d:\ python\ python37\ lib\ site-packages (from pytest- > pytest-playwright) Requirement already satisfied: pluggy=0.12 in d:\ python\ python37\ lib\ site-packages (from pytest- > pytest-playwright) (0.13.1) Requirement already satisfied: packaging in d:\ python\ python37\ lib\ site-packages (from pytest- > pytest-playwright) Requirement already satisfied: importlib-metadata > = 0.12in d:\ python\ python37\ lib\ site-packages (from pytest- > pytest-playwright) (1.7.0) Requirement already satisfied: iniconfig in d:\ python\ python37\ lib\ site-packages (from pytest- > pytest-playwright) (1.0.1) Requirement already satisfied: requests > = 2.9 in d:\ python\ python37\ lib\ site-packages (from pytest-base-url- > pytest-playwright) (2.25.0) Requirement already satisfied: text-unidecode > = 1.3in d:\ python\ python37\ lib\ site-packages (from python-slugify- > pytest-) Playwright) (1.3) Requirement already satisfied: zipp > = 0.5 in d:\ python\ python37\ lib\ site-packages (from importlib-metadata > = 0.12-> pytest- > pytest-playwright) (3.1.0) Requirement already satisfied: urllib3=1.21.1 in d:\ python\ python37\ lib\ site-packages (from requests > = 2.9-> pytest-base-url- > pytest-playwright) (1.26.2) Requirement already satisfied: certifi > = 2017.4.17 in d:\ python\ python37\ lib\ site-packages (from Requests > = 2.9-> pytest-base-url- > pytest-playwright) Requirement already satisfied: idna=2.5 in d:\ python\ python37\ lib\ site-packages (from requests > = 2.9-> pytest-base-url- > pytest-playwright) (2.9) Requirement already satisfied: chardet=3.0.2 in d:\ python\ python37\ lib\ site-packages (from requests > = 2.9-> pytest-base-url- > pytest-playwright) (3.0.4) Requirement already satisfied: pyparsing > = 2.0. 2 in d:\ python\ python37\ lib\ site-packages (from packaging- > pytest- > pytest-playwright) (2.4.7) Installing collected packages: pytest-playwrightSuccessfully installed pytest-playwright-0.2.2 write test cases

Import pytestfrom playwright.sync_api import Page def test_baidu_com (page: Page): page.goto ("https://www.baidu.com") # xpath positioning input box" Enter text content page.fill ('/ * [@ id= "kw"]', "Qin Shi Mingyue") # css click "Baidu once" button page.click ('# su') # print title name print (page.title) if _ name__ ='_ _ main__': pytest.main (["- v", "test_baidu_example.py"])

The noun explains:

Test_baidu_com (page: Page): autocomplete configuration type (page is a clip function provided by the pytest_playwright plug-in, page specifies that type Page,Page is a class provided by the playwright library, and page specifies type Page to call some column methods in the Page class)

Command line input command execution:

PS F:\ project_gitee\ Test\ playwrightProject\ cases > pytest--browser chromium-- video on==== test session starts = platform win32-- Python 3.7.7, pytest-6.2.5, py-1.9.0, pluggy-0.13.1rootdir: F:\ project_gitee\ Test\ playwrightProject\ casesplugins: allure-pytest-2.9.43, anyio-3.3.4, base-url-1.4.2, clarity-1.0.1, cov-2.8.1, emoji-0.2.0 Forked-1.3.0, html-3.1.1, lazy-fixture-0.6.3, metadata-1.11.0, pikachu-0.1.0, playwright-0.2.2, rerunfailures-9.1.1, xdist-2.2.1collected 1 item test_baidu_example.py. 1 passed in 1.97s =

Basic commands are commonly used on the command line:

# run test pytest # Open page run pytest-- headed # specify browser to run pytest-- browser firefox # start page run and specify browser to run pytest-- headed-- browser firefox # specify two browsers to run, first run Firefox and then run Google pytest-- browser firefox-- browser chromium # use browser channel Support Google browser (other browsers on my computer are reporting errors) pytest-browser-channel chromium # run test pytest in slow motion-slowmo 100# specify Google browser to record the track of each test (generate a .zip package and store it in the test-results folder) pytest-browser chromium-tracing on (on: on Off: off) # specify Google browser, open the video recorded for each test (generate a .webm package and store it in the test-results folder) pytest-- browser chromium-- video on (on: on; off: off) # specify Google browser, whether to automatically take a screenshot (generate a .png image and store it in the test-results folder) after each test (pytest-- browser chromium-- screenshot on)

Skip the test through the browser:

Import pytestfrom playwright.sync_api import Page @ pytest.mark.skip_browser ("firefox") def test_baidu_com (page: Page): page.goto ("https://www.baidu.com") # xpath location input box" Enter text content page.fill ('/ * [@ id= "kw"]', "Qin Shi Mingyue") # css click "Baidu once" button page.click ('# su') # print title name print (page.title) if _ name__ ='_ _ main__': pytest.main (["- v", "test_baidu_example.py"])

Run on a specific browser:

Import pytestfrom playwright.sync_api import Page @ pytest.mark.only_browser ("chromium") def test_baidu_com (page: Page): page.goto ("https://www.baidu.com") # xpath location input box" Enter the text content page.fill ('/ * [@ id= "kw"]', "Qin Shi Mingyue") # css click the "Baidu down" button page.click ('# su') # print title name print (page.title) if _ name__ = ='_ main__': pytest.main (["- v", "test_baidu_example.py"]) ignore the HTTPS error and set the custom viewport size

The first is to write it in conftest.py and then run the test case directly:

# conftest.py import pytest @ pytest.fixture (scope= "session") def browser_context_args (browser_context_args): return {* browser_context_args, "ignore_https_errors": True,} @ pytest.fixture (scope= "session") def browser_context_args (browser_context_args): return {* * browser_context_args, "viewport": {"width": 1920 "height": 1080,}}

The test case is written as follows (it is best to write it this way, otherwise the error will be reported when it runs, and the author has mined the pit):

Import pytestfrom playwright.sync_api import Page def test_example (page: Page): page.goto ("http://www.baidu.com") assert page.title () = =" Baidu, you will know "page.close () if _ _ name__ = ='_ _ main__': pytest.main (["-v "," test_example.py "]))

Run the test case on the command line:

PS F:\ project_gitee\ Test\ playwrightProject\ cases > pytest--headed-- browser chromium==== test session starts = platform win32-- Python 3.7.7, pytest-6.2.5, py-1.9.0, pluggy-0.13.1rootdir: F:\ project_gitee\ Test\ playwrightProject\ casesplugins: allure-pytest-2.9.43, anyio-3.3.4, asyncio-0.16.0, base-url-1.4.2, clarity-1.0.1, cov-2.8.1, emoji-0.2.0 Forked-1.3.0, html-3.1.1, lazy-fixture-0.6.3, metadata-1.11.0, pikachu-0.1.0, playwright-0.2.2, rerunfailures-9.1.1 Xdist-2.2.1collected 1 item test_example.py. 1 passed in 2.39s =

The second is to add the specified parameters directly to the use case:

Import pytestfrom playwright.sync_api import sync_playwright def test_example (): with sync_playwright () as p: browser = p.chromium.launch (headless=False) page = browser.new_context (ignore_https_errors=True, viewport= {"width": 1920, "height": 1040 }) page = page.new_page () page.goto ("http://www.baidu.com") assert page.title () = =" Baidu You know "browser.close () if _ _ name__ ='_ _ main__': pytest.main (["-v "," test_example.py "])

The noun explains:

P.chromium.launch (headless=False): headless=False is enabled to run with pages (default is True, that is, headless browser)

The third is a simulated mobile browser.

# conftest.py import pytest @ pytest.fixture (scope= "session") def browser_context_args (browser_context_args, playwright): iphone_11 = playwright.devices ['iPhone 11 Pro'] return {* browser_context_args, * * iphone_11,}

The test case is written as follows (it is best to write it this way, otherwise the error will be reported when it runs, and the author has mined the pit):

Import pytestfrom playwright.sync_api import Page def test_example (page: Page): page.goto ("http://www.baidu.com") assert page.title () = =" Baidu, you will know "page.close () if _ _ name__ = ='_ _ main__': pytest.main (["-v "," test_example.py "]))

Run the test case on the command line:

PS F:\ project_gitee\ Test\ playwrightProject\ cases > pytest--headed-- browser chromium==== test session starts = platform win32-- Python 3.7.7, pytest-6.2.5, py-1.9.0, pluggy-0.13.1rootdir: F:\ project_gitee\ Test\ playwrightProject\ casesplugins: allure-pytest-2.9.43, anyio-3.3.4, asyncio-0.16.0, base-url-1.4.2, clarity-1.0.1, cov-2.8.1, emoji-0.2.0 Forked-1.3.0, html-3.1.1, lazy-fixture-0.6.3, metadata-1.11.0, pikachu-0.1.0, playwright-0.2.2, rerunfailures-9.1.1 Xdist-2.2.1collected 1 item test_example.py F = FAILURES = _ _ _ test_ example [chromium] _ page = def Test_example (page: Page): page.goto ("http://www.baidu.com")> assert page.title ()) = =" Baidu You will know "E AssertionError: assert 'Baidu' = = 'Baidu, you will know' E-Baidu, you will know E + Baidu test_example.py:15: AssertionError==== short test summary info = FAILED test_example.py::test_ example [chromium]-AssertionError: assert 'Baidu' = = 'Baidu', you will know'= 1 failed in 3.14s = =

After running here, the web page that opens is a phone-shaped page, imitating a mobile browser (iPhone 11 Pro specified in the code)

Persistent context

It means to open a web page, where multiple new tab pages will be opened to execute the test case.

For example, I have two test cases to execute, and if I use a persistent context, I open a web page, and then the first tab of the web page runs the first test case, and the second tab runs the second test case until all the test cases are run, and the entire web page is closed.

Of course, if you do not use the persistence context, that is to open the web page to execute the first test case, close the web page after the first test case, then open the web page to execute the second test case, and close the web page after the second test case is executed.

Import pytestfrom playwright.sync_api import BrowserTypefrom typing import Dict @ pytest.fixture (scope= "session") def context (browser_type: BrowserType, browser_type_launch_args: Dict, browser_context_args: Dict): context = browser_type.launch_persistent_context (". / data", * * {* browser_type_launch_args, * * browser_context_args, "locale": "de-DE" }) yield context context.close ()

The noun explains:

The path to the data user data directory that stores browser session data, such as cookie and local storage.

If browser_type_launch_args does not set a value, it returns an empty dictionary; the parameters in it are consistent with the parameters passed in p.chromium.launch (), which you will learn about here and described in more detail later.

If browser_context_args does not set a value, it returns an empty dictionary; the parameters in it are consistent with the parameters passed in context = browser.new_context (), which you will learn about here and described in more detail later.

Locale specifies the user locale, such as' en-GB', 'de-DE', and so on.

Run the test case on the command line:

PS F:\ project_gitee\ Test\ playwrightProject\ cases > pytest--headed-- browser chromium==== test session starts = platform win32-- Python 3.7.7, pytest-6.2.5, py-1.9.0, pluggy-0.13.1rootdir: F:\ project_gitee\ Test\ playwrightProject\ casesplugins: allure-pytest-2.9.43, anyio-3.3.4, asyncio-0.16.0, base-url-1.4.2, clarity-1.0.1, cov-2.8.1, emoji-0.2.0 Forked-1.3.0, html-3.1.1, lazy-fixture-0.6.3, metadata-1.11.0, pikachu-0.1.0, playwright-0.2.2, rerunfailures-9.1.1 Xdist-2.2.1collected 2 items test_baidu_example.py. [50%] test_example.py [100%] = 2 passed in 3.12s =

You must be aware of the problem:

The browser_type_launch_args and browser_context_args in the above article are both test folder sessions provided by the pytest_playwright plug-in:

Show part of the source code of the pytest_playwright plug-in:

Pytest.fixture (scope= "session") def browser_type_launch_args (pytestconfig: Any)-> Dict: launch_options = {} headed_option = pytestconfig.getoption ("--headed") if headed_option: launch_options ["headless"] = False browser_channel_option = pytestconfig.getoption ("--browser-channel") if browser_channel_option: launch_options ["channel"] = browser_channel_option Slowmo_option = pytestconfig.getoption ("--slowmo") if slowmo_option: launch_options ["slow_mo"] = slowmo_option return launch_options @ pytest.fixture (scope= "session") def browser_context_args (pytestconfig: Any Playwright: Playwright, device: Optional [str],)-> Dict: context_args = {} if device: context_args.update (playwright.devices [device]) base_url = pytestconfig.getoption ("- base-url") if base_url: context_args ["base_url"] = base_url video_option = pytestconfig.getoption ("- video") capture_video = video_option in ["on" "retain-on-failure"] if capture_video: context_args ["record_video_dir"] = artifacts_folder.name return context_args Thank you for your reading The above is the content of "how to achieve the implementation of playwright combined with pytest in python". After the study of this article, I believe you have a deeper understanding of how to achieve the implementation of playwright combined with pytest implementation in python, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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