Setup and Tear Down The %UnitTest.TestCaseOpens in a new tab class provides methods that can be used to set up a test environment before a test or set of tests executes and then tear down that environment after the tests are finished. Here are descriptions of these methods: Method Description OnBeforeAllTests Executes once before any of the test methods in a test class execute. Can set up a test environment. OnAfterAllTests Executes once after all of the test methods in a test class execute. Can tear down a test environment. OnBeforeOneTest Executes immediately before each test method in a test class executes. OnAfterOneTest Executes immediately after each test method in a text class executes.