Salesforce DEX-450 Exam Questions

To ensure that specific data is available in test methods, the developer should create test data within the test context.

Option B: Use Test.loadData() and reference a CSV file in a static resource.

Correct Approach.

Test.loadData() is a method that allows test methods to load test data from a CSV file stored as a static resource.

This method creates the records in the test context, ensuring that the data is available during the test execution.

Using a CSV file makes it easy to define multiple records with specific field values.

Usage Example:

@isTest

private class MyTestClass {

@isTest

static void testMethod() {

List<MyObject__c> testRecords = (List<MyObject__c>) Test.loadData(MyObject__c.sObjectType, 'MyTestData');

// Proceed with testing using testRecords

}

}

Where 'MyTestData' is the name of the static resource containing the CSV file.

Test.loadData() does not support loading data from JSON files or from the Documents object.

It uses CSV files stored as static resources.

Option C: Use Anonymous Apex to create the required data.

Not Effective for Testing.

Data created via Anonymous Apex is not available in test methods due to data isolation.

Test methods operate in their own context and cannot access data created outside the test unless SeeAllData=true is used, which is discouraged.

Option D: Use SOQL to query the org for the required data.

Not Recommended.

Test methods should not rely on existing org data.

Tests should create their own data to ensure consistency and avoid dependencies.

Using SeeAllData=true is discouraged.

Conclusion:

To ensure that records with specific field values are available in the test, the developer should use Test.loadData() with a CSV file stored in a static resource.

Therefore, Option B is the correct answer.

Test.loadData() Method

Static Resources

Options Not Suitable:

Option A: Use test.loadData() and reference a JSON file in Documents.

Incorrect.

The requirement is for service agents to gather many pieces of information when processing damaged or stolen credit cards.

Option A: Screen-based Flow

Correct Answer.

A Screen Flow allows developers to build guided, interactive forms that collect information from users.

Flows can have multiple screens, validation rules, and branching logic.

They can be created declaratively without code, making them efficient to implement.

Benefits:

Efficient Development: No need for code.

User-Friendly: Provides a step-by-step interface.

Maintainable: Easy to update as requirements change.

Building a custom Lightning Component requires development effort.

For simple data collection, a Flow is more efficient.

Option C: Approval Process

Incorrect.

Approval Processes are used for routing records for approval, not for gathering information from users.

Option D: Apex Trigger

Incorrect.

Triggers run in the background and are not used for interactive user interfaces.

Conclusion:

The most efficient way to satisfy the requirement is to use a Screen-based Flow, which is Option A.

Build a Flow

Screen Flows

Incorrect Options:

Option B: Lightning Component

*Possible but Less Efficient.