How can I cover the wrapper class in the test class?

In the context of Salesforce, you can cover the test class in your particular test class by using the several steps which are given below:-

Initialize the wrapper object

You can try to create an instance of the wrapper class within your particular test method.

Set values

You can set the values for the properties of the wrapper class Instance so that you can simulate the different scenarios and even test the class.

Invoke methods

If you find that the wrapper class contains methods, then you can try to invoke them within your test method so that you can verify their behavior and functionality.

Assert results

You can try to assert so that you can verify that the wrapper class should behave as expected based on the provided input values and method invocations.

Here is an example given of how you can cover a wrapper class in a test class:-

@isTest

Public class MyTestClass {
    // Test method to cover the wrapper class

    @isTest

    Static void testWrapperClass() {
        // Initialize wrapper object
        MyWrapperClass.MyWrapperObject wrapper = new MyWrapperClass.MyWrapperObject();
        // Set values for wrapper properties
        Wrapper.name = ‘Test’;
        Wrapper.value = 10;
        // Assert property values
        System.assertEquals(‘Test’, wrapper.name);
        System.assertEquals(10, wrapper.value);
        // If the wrapper class has methods, invoke them and assert results
        // Example:
        // wrapper.doSomething();
        // System.assertEquals(expectedResult, wrapper.result);
    }
}