Testing APEX In Salesforce | A Complete Guide For Beginners [ OverView ]

• In this article you will learn:
• 1.Need for an Apex Testing.
• 2.What is Tested in Apex.
• 3.Apex Unit Test.
• 4.Test Data.
• 5.Running unit tests.
• 6.Conclusion.

Need for an Apex Testing:

• If developing a software product for an end-users, then testing is a key aspect of the success of that product.
• Testing is used to test given product, whether it is a working according to an expectations or not.
• Two methods for a testing an application: one way of testing is with help of a salesforce user interface.
• Testing through a salesforce user interface makesa product testing from various perspectives.
• Another way of testing is a testing bulk services, and can send a 200 records with the help of this code if called through a SOAP API. To implement applications for a salesforce App exchange, the following rules are should be satisfied.

Observe the following:

• Unit tests must be a conceal a minimum of three-by-fourth of a code; all these tests must be a completed efficiently.
• While implementing an application in a production enterprise, every unit test in an enterprise namespace is be implemented automatically.
• Invoking system.debug is not considered as the component of apex code.
• Test classes and Test methods are not considered as the component of an apex code.
• Every trigger should have precise testing scope.
• All of triggers and classes must be a compiled successfully.

What is a Tested in Apex:

1. Single Action: It is a tested to check whether an individual record the generates a appropriate or expected result.

2. Bulk Actions: Any Apex code like class or a trigger or extension can be called for a 1 to 200 records should test be individual or Bulk records.

3. Positive Behaviour: It is tested to check a whether the assumed behavior happens in an each assumed mutation.

4. Negative Behaviour: This behavior is considered as the restriction to applications like cannot indicate the negative amount, cannot include future data, etc.

5. Restricted user: It is used to test a whether user implements a code or gets error messages.

Apex Unit Test:

• To ease development of a strong and flawless code, Apex endorses an execution and creation of unit tests.
• Unit tests are be considered as class methods that test whether the specific part of code is working accurately.
• Methods of a Unit tests will have no arguments, will not save a data to the database.
• Unit tests should be a specified in a test classes, that are written with the “@isTest”.

Unit Tests Example:

Example1:

Test Data:

• Apex test data is the temporary and not saved in a database.
• After executing a test method, the inserted data is not saved in a database.
• All the modifications done to available records are not saved or committed in a database.
• The temporary behavior of a test data eases data management.

Running a unit tests:

To verify a utility of an apex code, will run a unit tests will run apex test methods in a developer console

1. Few or total all test methods in the specific class.

2. Few or full methods in the group of classes.

3. An inbuilt collection of a classes called test suite.

4. Complete unit tests in an organization.

Can run the unit tests through following:

1. A Salesforce user interface.

2. A Salesforce expansions through a visual studio code.

3. API.

4. Lightning a Platform Developer Console.

Steps for a Running Unit Tests are as follows:

1. In Setup, type Apex Test Execution” in Quick Find Box, then choose a Apex Test Execution.

2. Press “select Tests”.

3. Choose a tests to run. The catalogue of a tests contains simply classes that comprise a test methods:

• To choose the test within an installed package, choose the namespace of a managed package from a fold-out list.
• To choose the test that is present at a local level of your enterprise, choose [My Namespace] from a fold-out list.
• To choose the test, select [All Namespaces] from a fold-out list.

4. To withdraw from the gathering code coverage data while a running tests, choose “Skip Code Coverage”.

5. Press Run.

Conclusion:

In an every software development, testing plays the crucial role to make it successful.In Apex also, testing is a necessary to test the functionality of a product.In Apex will check a behavior and actions of a product. Will have a specific methods and classes to implement a unit tests.Unit tests make a code error-free. In this way, will test an apex code to develop the successful software product.