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How to write trigger Test class in Salesforce?
Quite easy when you breakdown the code first and try to replicate the same functionality inside your test class. Write a trigger to prefix Account Name with ‘Mr.’ whenever a new record is inserted. Now let’s try again to write test class of the same salesforce apex trigger written above.
What to know before writing a trigger Test class?
1. Functionality of trigger 2. When a trigger is executing 3. Conditions/Criteria written inside the apex triggers 4. Positive and negative scenarios in which your trigger will execute and will not execute. Above points are very important to know before writing test classes for your trigger.
Is there a test method for apex trigger?
The test method exercises and validates the code in the trigger and class. Also, it enables you to reach 100% code coverage for the trigger and class. A Salesforce account in a sandbox Professional, Enterprise, Performance, or Unlimited Edition org, or an account in a Developer org. The HelloWorldTrigger Apex trigger.
Do you need to test a trigger on a contact object?
As a result of this trigger on McLabs2__Ownership__c (if exist) will be invoked, but you have to test a trigger on Contact object. Thus you need to insert an account and after that update it because your contact trigger works in after update mode. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question.
How to test for an exception in a trigger?
MyField = a value that will cause an error ; throw new MyException (‘ An exception should have been thrown by the trigger but was not .’); // 1. If we get to this line it means an error was not added and the test class should throw an exception here.
How to write advanced test class for an advanced trigger?
Don’t put the logic (incl. SOQL or DML) in the trigger, use a helper class. Don’t push the trigger.New logic to the helper class method, you should filter on records that are in related scope. You will increase performance, reduce governor limits consumption, and limit regression risks when updating the class.
How to write trigger Test class in apex?
Once you write the apex test class inside Developer Console then click on the Run Test button. And make sure your test class will have more than 75% (85% for the safety side). In the next part, we will cover more trigger test classes along with the more trigger scenarios. So see yaa in the next episode
When to use a trigger on an account object?
I wrote trigger on account object when ever inserting or updating the account record the the values in the billing address field are copied to shipping address field if the shipping address field is null.