Can any one explain this?
Hardcoding the request URLs is a best practice for functional tests. If the test generates URLs using the Symfony router, it won't detect any change made to the application URLs which may impact the end users.
http://symfony.com/doc/current/book/testing.html#working-with-the-test-client
What sort of changes are they referring to? Why is this a problem if all url are generated using the router?
分享 If a url changes, it affects bookmarks, links from other sites, page rank... If you test using a generated url, the test will succeed, even if you (accidentally) changed the url pattern.
By using hard-coded urls you can prevent this from happening. The test will fail if you accidentally change the url. If you meant to change it, you can just update the hardcoded url to match the new situation. This way you are in control.
For some applications, or some urls within a specific site or application, it might not matter at all if the url changes. In that case, you can generate the url of course. It's a general advice, not a law. :)
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