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Test Classes in Salesforce

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Users of Salesforce can Create their own Test Classes; these test classes alone cover over 75% of the code. To ensure that there are no issues with Salesforce Dashboard during production, this is done. Test classes Enable the testing of the logic for Batch Apex, Queueable Apex, Future Apex, Visualforce Controller, and Extensions.


What is Test Class in Salesforce?

In Salesforce, test classes primarily Check that All Logic is operating as it should, whether through positive or negative testing. Before the Salesforce admin deploys the code in the final production, test classes are not included in the code coverage calculation.

About 75% of the code in Salesforce may be covered by test classes, which means that more than half of the testing is done by the test classes themselves. They function similarly to Python testing in that a just-in-time compiler tests the written code.


How to Create a Test Class in Salesforce?

The steps to create a test class in Salesforce are as follows:

Step 1: Open the Salesforce dashboard first.

Step 2: Type “Apex Classes” into the Quick Find tab.

Step 3: To choose a new Apex Class, click on New.

Step 4: Include the definition of the test class here.

Step 5: The syntax is as follows.


private class MyTestClass {

    @isTest static void myTest() {

        // code_block



Step 6: Depending on the item and trigger you have generated in your Salesforce account, of your code will like this. One of the test class examples in Salesforce is this.

Step 7: You must execute this code in the developer’s console before adding your individually created apex class code to the console.

Step 8: Execute this code to check your console output.

Step 9: Decide which test class you want to execute.

Step 10: Click Add Selected to include every method in the test class in the test run.

Step 11: Press “Run”

Step 12: The Tests tab displays the test result. To see which methods were called, you can opportunistically expand the test class on the Tests tab. In this instance, there is only one test method in the class.

Congratulations, Your Test Class is created.


Advantages of Salesforce Test Classes:

  • Decreases the expense of bugs, or it aids in troubleshooting
  • Carries out numerous tests at once
  • Provides the user with the desired output
  • Delivers top-notch apps to the production organization, increasing the productivity of production users

Annotations of Test Class in Salesforce

  • @isTest: This keyword is used to specify that a class or method solely contains code for test coverage. The Apex code limits for your company do not apply to classes defined with this annotation.
  • @testSetup: This specifies the precise process through which the test data were set. The @testSetup method will be called before any other methods in the test class if it is supplied. Each test method has access to the first created test dataset, regardless of how other test methods use the data.
  • @testVisible: It makes logical to designate components like methods, variables, and internal classes as private or protected while developing Apex logic.


Best Practices of Test Classes in Salesforce

Starting with @is Salesforce will realize that you are developing a test class if you use test annotations.

Always strive to keep the class private and use the original class or trigger name when naming it.

Your test class’s methods must be static, and the keywords void and testMethod must be used.

To ensure that the actual testing of the code is carried out using a new set of governor constraints, use Test.startTest() and Test.stopTest(). You can use these techniques to reset the governor limitations prior to executing the test code.

Use assert statements to verify that your test code is executed correctly and produces the desired results once it has run between Test.startTest() and Test.stopTest().

They attempt to create records with duplicate index field values when a deadlock happens in tests that are running in parallel. When two tests that are now running are waiting for each other to roll back data, a stalemate arises. Such a wait may occur if two tests insert records in distinct sequences that have the same unique index field values.




The test classes do out more than half of the testing labor, as previously described. Therefore, understanding how to develop test classes is crucial for anyone who wishes to test the logic for Apex triggers, Apex classes, Visualforce Controller, Queueable Apex, Future Apex, Visualforce Extensions, and Batch Apex. I hope this blog post has given you an overview of how test classes and all the numerous test methods that may be utilized in Salesforce are used.


Happy Coding

Happy Coding! 

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Sanket Dudhe

Sanket Dudhe is a Technical Consultant at Perficient. He has an experience of 4+ years as SDET. He loves technology and hence is curious to learn about new emerging technologies #lovefortechnology.

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