* Create more sample orders data.
* Code formatting.
* Add tests for pagination.
* Formatting.
* Add test case for inclusion and exclusion parameters.
* Add test for parent and parent_exclude parameters.
* Add test case for status parameter.
* Add test case for customer parameter.
* Add test case for product parameter.
* Create a test order with all numerical properties populated.
* Add test case for precision parameter.
* Add test case for search parameter.
* Add test case for orderby parameter.
* Move missed api-core-tests files.
* Force tests to run in band (sequentially).