This is the example application for the article Selenium-Grid mit Docker im PHP Magazin 5.16
This is a simple example how to use a Selenium-Grid
with PHPUnit and Mink. There are three test classes, to
demonstrate parallel execution of tests. One test has a duration of ~10s (uses sleep()). So you
can see the difference and have time to observe the test execution in the Selenium-Grid.
WikipediaChromeTest: Uses Google Chrome with Selenium to test the search widgetWikipediaFirefoxTest: Uses Mozilla Firefox with Selenium to test the search widgetWikipediaGoutteTest: Uses Mink Goutte Driver to test the search widget (headless Browser)
First, you need to setup a Selenium-Grid. Please install Docker >= 1.11 and Docker Compose >= 1.7 and then run:
$ docker-compose up -d
If you interested in more Docker Images, please take a look at the prooph/docker-files.
You can run more Firefox oder Chrome instances by running:
$ docker-compose scale firefox=5
$ docker-compose scale chrome=5
You can watch the test execution with a VNC Viewer like xvnc4viewer.
Determine the ports of the Selenium-Node Docker container with:
$ docker-compose port firefox
$ docker-compose port chrome
Use the IP/Port with the VNC Viewer. The passwort is secret:
$ vncviewer 0.0.0.0:49338
To install the Composer dependencies run:
$ docker run --rm -it --volume $(pwd):/app prooph/composer:7.0 install --dev -o
Every test is executed in order. This should take ~28s.
$ docker run --rm -it --volume $(pwd):/app --link hub:hub prooph/php:7.0-cli vendor/bin/phpunit
Output:
PHPUnit 5.3.4 by Sebastian Bergmann and contributors.
... 3 / 3 (100%)
Time: 28.07 seconds, Memory: 8.00MB
OK (3 tests, 3 assertions)The objective of ParaTest is to support parallel testing in PHPUnit. Every test is executed in parallel. This should take ~13s.
$ docker run --rm -it --volume $(pwd):/app --link hub:hub prooph/php:7.0-cli vendor/bin/paratest
Output:
Running phpunit in 5 processes with /app/vendor/bin/phpunit
Configuration read from /app/phpunit.xml.dist
...
Time: 13.57 seconds, Memory: 4.00MB
OK (3 tests, 3 assertions)Every test is executed parallel in an own Docker PHP container. This should take ~13s.
$ find test/ -name "*Test.php" | parallel --gnu -P 0 'docker run --rm --volume $(pwd):/app --link hub:hub prooph/php:7.0-cli vendor/bin/phpunit {};echo "Runned {} tests";'
Output:
When using programs that use GNU Parallel to process data for publication please cite:
O. Tange (2011): GNU Parallel - The Command-Line Power Tool,
;login: The USENIX Magazine, February 2011:42-47.
This helps funding further development; and it won't cost you a cent.
Or you can get GNU Parallel without this requirement by paying 10000 EUR.
To silence this citation notice run 'parallel --bibtex' once or use '--no-notice'.
PHPUnit 5.3.4 by Sebastian Bergmann and contributors.
. 1 / 1 (100%)
Time: 5.73 seconds, Memory: 6.00MB
OK (1 test, 1 assertion)
Runned test/integration/WikipediaGoutteTest.php tests
PHPUnit 5.3.4 by Sebastian Bergmann and contributors.
. 1 / 1 (100%)
Time: 9.44 seconds, Memory: 4.00MB
OK (1 test, 1 assertion)
Runned test/integration/WikipediaChromeTest.php tests
PHPUnit 5.3.4 by Sebastian Bergmann and contributors.
. 1 / 1 (100%)
Time: 13.14 seconds, Memory: 6.00MB
OK (1 test, 1 assertion)
Runned test/integration/WikipediaFirefoxTest.php tests