Auto-merging test-only changes. Please review the commit and I'll make changes in next iteration.
* Add more tests to boast code coverage
* Add more reliable connection tests.
Next round of code coverage test cases. Please review the commit for next iteration.
* Add connection retry tests
* More test coverage
* Update diagnostics end-to-end test
* Ported ReliableConnectionTests from DacFx and added a few more tests
* Fix style
* Created integration tests configuration and fixed minor test issue