Building a Search Page with Visualforce Tags

Including Test Classes When Deploying to a Production Organization

Some of the code samples in this section have corresponding test classes. If you are deploying to a production organization, include the test classes with your code.

Test classes contain unit tests for validating the behavior of Apex classes and triggers. Unit tests are class methods that verify whether a particular piece of code is working properly. Unit test methods take no arguments, commit no data to the database, and are flagged with the testMethod keyword in the method definition.

All test methods in an organization are executed whenever Apex code is deployed to a production organization to confirm correctness, ensure code coverage, and prevent regressions. All Apex classes are required to have at least 75% code coverage in order to be deployed to a production organization. In addition, all triggers must have some code coverage.

The @isTest class annotation indicates this class only contains test methods. Classes defined with the @isTest annotation do not count against the organization size limit for all Apex scripts. See the Apex Code Developer's Guide for more information about testing and code coverage.