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cnx-automation

CircleCI Code style: black

Getting started

Clone the repository

If you have cloned this project already then you can skip this, otherwise you'll need to clone this repo using Git. If you do not know how to clone a GitHub repository, check out this help page from GitHub.

How to run the tests using Docker

Install Docker and Docker Compose

Follow the instructions to install Docker.

Follow the instructions to install Docker Compose.

Docker first run

If you have a fresh cloned repository ignore this step.

If you have run this repo without docker before please run to delete e.g. prebuilt .pyc files:

$ make clean

Run Docker Compose

$ docker-compose up -d selenium-chrome

Execute the tests

It's necessary for reducing the amount of time that it takes for test collection to be specific about the set of tests you'd like to execute.

You do this by adding the test folder you want pytest to scan for tests. Typically, the folders follow the following format `/tests//. The following test folders exist for running tests with pytest:

  • ./tests/webview/integration
  • ./tests/webview/ui
  • ./tests/webview/vendorbooks
  • ./tests/archive/integration
  • ./tests/legacy/ui
  • ./tests/cops
  • ./tests/neb/ui

An example on how to target the UI test for webview is below:

$ docker-compose exec selenium-chrome pytest tests/webview/ui

Note: The Run the tests using pytest section covers how to pass arguments to pytest in order to target specific tests

View the browser

List the docker containers and find the one for selenium-chrome

$ docker container ls

A table will be displayed with column names. Find the one labeled PORTS

PORTS
4444/tcp, 0.0.0.0:32778->5900/tcp

Use a VNC application to connect to 0.0.0.0:32778. The port number 32778 may be different. The password for the VNC session is secret.

Execute the tests as described above.

$ docker-compose exec selenium-chrome pytest

Switch over to the VNC window to see your tests running!

How to prepare the project locally

Install dependencies

Install Selenium Chrome WebDriver

$ brew cask install chromedriver    # macOS

Create a virtualenv

$ make venv

Activate the virtualenv

$ source .venv/bin/activate

Install git pre-commit hooks

This utilizes pre-commit to format code using black and lint your code using flake8. This is IDE agnostic and runs only on checked in code before a commit.

$ make precommit

Using dotenv for Environmental Variables

Dotenv is used by the framework to load environmental variables from a .env file if it exists in the root of the project directory.

This is useful for loading environment variables that use usernames. To use a .env file copy the example and fill out the values.

$ cp .env.example .env

Doing updates to dependencies

pip-tools are utilized for updating dependencies in the framework. Pip-tools provides a number of utilities to pip that are useful for cnx-automation. Cnx-automation installs dependencies from a number of our projects that may have conflicting versions. Pip-tools will warn when there is a conflict and can help with finding compatible versions between all the dependencies and sub-dependencies.

First, install pip-tools:

$ pip install pip-tools

To do updates to dependencies you'll first need to update the main dependency in ./requirements.in file.

When the dependency has been updated you can then generate the requirements.txt that will be used to install the dependencies.

$ pip-compile --output-file=requirements.txt

Set username and password for legacy tests

If you intend to run the legacy tests, you will need to set the LEGACY_USERNAME and LEGACY_PASSWORD environment variables. You can either export them from your shell profile or simply add them to a .env file in the root dir of this repo.

Run the tests using pytest

When only using the pytest command the default environment will set to QA.

To run against a different environment pass in a value for --webview_base_url, --legacy_base_url, --archive_base_url:

Staging

$ pytest --webview_base_url https://staging.cnx.org --legacy_base_url https://legacy-staging.cnx.org --archive_base_url https://archive-staging.cnx.org tests/webview/ui

Production

$ pytest --webview_base_url https://cnx.org --legacy_base_url https://legacy.cnx.org --archive_base_url https://archive.cnx.org tests/webview/ui

To run a specific test or test module pass in a value for -k:

$ pytest -k test_about tests/webview/ui

To run a specific project, pass in webview, legacy, or neb for -m:

$ pytest -m webview tests/webview

To run a more complicated example that runs a specific project and a specific test module in headless mode:

$ pytest -m webview -k test_home --headless tests/webview/ui

To run tests in parallel you can combine the above and use -n option to specify the number of workers.

$ pytest -n 4 -m webview tests/webview/ui

Run Smoke Tests

To run smoke tests you can add the smoke marker to the particular project that is being tested:

$ pytest -m "webview and smoke"

Run Integration Tests

To run integration tests you'll want to add teh integration marker and target the correct folder you want to scan for test:

$ pytest -m "webview and integration" tests/webview

Additional Pytest Options

The pytest plugin that we use for running tests has a number of advanced command line options available. To see the options available, run pytest --help. The full documentation for the plugin can be found here.

Uploading results to TestRail

The TestRail integration is currently intended to be used during a local test run of the cnx-automation suite when the uploading of results to TestRail is desired.

Make a copy of of the testrail.example.cfg:

$ cp testrail.example.cfg testrail.cfg

Replace the example values with the appropriate values:

[API]
url = https://instance.testrail.net/
email = [email protected]
password = api_key

To run the tests only for webview and a specific set of tests:

$ pytest -m webview -k test_home --testrail --testrail-name release01 tests/

Consult the pytest-testrail project README.md for more options

https://github.com/allankp/pytest-testrail

Marking a test that has a test case in TestRail

Use the markers.text_case decorator with case number to upload the results to TestRail. More than one test case can be used by separating with a comma.

@markers.test_case('C10000', 'C10001')
def test_foo_uploads_bar:

Framework Design

Pytest Selenium Training

You can find more in depth documentation in our Pytest Selenium Training.

Brief Architectural Description

This testing framework heavily relies on the PyPOM. The PyPOM library is the Python implementation of the PageObject design pattern.

The PageObject pattern creates a nice API abstraction around an HTML page allowing the test creator to focus on the intent of a test rather than decyphering HTML code. This design pattern makes the test framework much more maintainable as any code changes to the page can occur in the PageObject rather than within the test code.

According to Siman Stewart,

If you have WebDriver APIs in your test methods, You're Doing It Wrong.

The usage of pytest, pytest-selenium plugin, and the PageObject pattern allows for a succinct test structure like so:

from tests import markers

from pages.home import Home

@markers.webview
@markers.nondestructive
def test_nav_is_displayed(webview_base_url, selenium):
    # GIVEN the main website URL and the Selenium driver

    # WHEN The main website URL is fully loaded
    page = Home(selenium, webview_base_url).open()

    # THEN The navbar is displayed
    assert page.header.is_nav_displayed

The inspiration for this framework is based on the Mozilla Addons Server Project and plenty of examples can be gleamed from their fantastic usage of the pattern.

HOW TO CREATE TEST DATA FOR REDIRECTS

i. go to ce-scripts repo and create virtual environment:

pyenv virtualenv 3.7.x virtualenv_name

activate it:

pyenv activate virtualenv_name

install requirements:

pip install -r requirements.txt

ii. cd python

run

gen_book_uris.py <archive_host> <cnx_uuid>

e.g. $ ./gen_book_uris.py archive-staging.cnx.org e42bd376-624b-4c0f-972f-e0c57998e765

iii. this will create url variations as per rex_redirects.py and stores it in output/<cnx_uuid.txt> file

e.g. output/e42bd376-624b-4c0f-972f-e0c57998e765.txt

iv. rex_redirects.py file can be found here: rex_redirects

vi. copy the created cnx_uuid.txt file into cnx-automation folder: fixtures/data/webview/

vii. in fixtures/webview.py add fixture to read and iterate through by tests:

tests/webview/integration/test_redirects_301.py

tests/webview/integration/test_rex_redirects.py