So, we decided to open source our selenium test suite so that developers could see the kind of integration tests we're currently running, and could even contribute their own tests that test specific functionality or an order of operations used on their site. What better way to make sure your site works with our API than contribute a test to make sure of it?
You can read more about the suite on our blog, peruse through our tests, and if you're a Maps API developer yourself, send us a test or two!
Link - from Google Testing Blog
Related: Presubmit And Performance