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  • FEXLE Services

    Member
    March 18, 2024 at 12:55 pm in reply to: What are some best practices while writing test classes in Salesforce?

    Focus on Functionality, Not Just Coverage:

  • Aim for high code coverage (ideally above
    90%), but prioritize testing all functionalities of your code. Don't
    just write tests to meet a coverage target.

    • Test Different Scenarios:

  • Include positive and negative test cases. Test expected behavior and edge cases to ensure your code is robust.
  • Use `@isTest` annotation to mark your test class.

    • Organize Your Tests:

  • Use separate test methods for different functionalities or scenarios. This improves readability and maintainability.
  • Consider using `@TestSetup` to create reusable test data setup logic.

    • Leverage Assertions:

  • Utilize methods like `System.assertEquals` and `System.assertNotEquals` to verify expected outcomes.

    • Test Bulk Operations:

  • Test how your code behaves when processing large amounts of data (e.g., 20 or more records).

    • Mock External Interactions:

  • Use tools like `WebServiceMock` to simulate external calls (e.g., web service calls) during testing for reliable results.

    • Test Security Aspects:

  • Avoid using `System.runAs` for user context changes as it bypasses security checks.
  • Test permission-dependent functionalities with appropriate user settings.

    • Additional Tips:

  • Use clear and concise variable names for better understanding.
  • Document your test cases to explain their purpose and expected behavior.
  • Consider using a testing framework like Salesforce DX for enhanced testing capabilities.

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