Test method and test classes are not counted as a part of code limit 9. Note Whenever you modify your Apex code, rerun your tests to refresh code coverage results.
It will finally save you a lot of time and effort and money if you do the unit tests properly. Single Action -To verify that the the single record produces the correct an expected result. But this should not be our focus. FahrenheitToCelsius ; System.
Apex unit tests ensure high quality for your Apex code and let you meet requirements for deploying Apex. March 15, by LanceShi 5.
Test methods and test classes are not counted as part of Apex code limit. Create TestFactory class with isTest annotation to exclude from organization code size limit.
Execute all test methods in a class and inspect failures. We don't view or modify any data in your org, and all testing is done in a copy that runs in a secure data center.
So in short, in Salesforce world, you must write unit test. Test class must start with isTest annotation if class class version is more than 25 2.
You can either use isTest or use testMethod modifier.