WEBDEV Concepts

Part 6: Testing aWeb site 191 Testing a site: Elements to be tested Tests play an essential role in the development of a site. A test checks the behavior and usability of the site. The main points to check in a WEBDEV site are as follows: • how the site works : sequence of pages, execution of code typed, etc. • appearance of the site : use different browsers (Internet Explorer, Chrome, FireFox, Edge, etc.), use different screen resolutions, resize the browser, etc. • Web-specific features : print, cookies, browser "Back" key, etc. • access to the site by different users : management of usernames and passwords, management of concurrent accesses to the data files, etc. • regression of a site during an update : validation of the changes made in a site and verification to ensure that non-modified features are still accessible. • load test (for a site installed on the server): validation of the maximum number of users who can access the site. Remark : To determine the coverage of tests run, WEBDEV includes a "Code coverage" analysis. Code coverage is used to measure the coverage of tests run on a site. Each line of code run is considered as "tested". Caution: The code coverage does not allow you to know if tests are successful: it only allows you to know whether a line of code has been executed. The code coverage is used to detect the lines of code that have never been executed.