tests/README.md

In UBC-MDS/rsketball: Scrape data from ESPN NBA and show summary statistics/visualisations

Testing rsketball

rsketball has a scraper function nba_scraper that utilises the library RSelenium. Thus, to perform the necessary tests, it is essential to run a Docker image containing the standalone chrome driver.

Pull docker image with the following code in Terminal. We will stick to Chrome since it seems compatible with Windows while Firefox is not.

docker pull selenium/standalone-chrome

We need to set up the Docker container default port 4444 to our computer host port 4445. Keep this port number as inputs for the nba_scraper function. We will also allocate the virtual memory of the container to 2Gb for it to scrape effectively.

Run the following code in Terminal:

docker run -d -p 4445:4444 --shm-size 2g selenium/standalone-chrome

Note the arguments to map the computer port 4445 to the Docker driver's port 4444.

Once that is set up, you can proceed to perform testing for rsketball by running the following code in the project repo using the R console.

devtools::test()

After test scraping is completed, we can shut down the Docker Container instance. This will also ensure that your computer memory/resources are restored.

docker stop $(docker ps -q)

UBC-MDS/rsketball documentation built on April 1, 2020, 4:37 a.m.