Delete

Mock delete operations in unit tests to avoid actual database deletes.

WARNING

The DML.mock() and DML.retrieveResultFor() methods are @TestVisible and should only be used in test classes.

TIP

• No database operations: Mocked deletes don't touch the database
• Results are captured: All operation details are available via DML.retrieveResultFor()
• Selective mocking: Use deletesFor() to mock specific SObject types while allowing others to execute

Example

public class AccountService {
    public void deleteInactiveAccounts() {
        List<Account> accounts = [SELECT Id FROM Account WHERE IsActive__c = false];

        new DML()
            .toDelete(accounts)
            .identifier('AccountService.deleteInactiveAccounts')
            .commitWork();
    }
}

@IsTest
static void shouldDeleteInactiveAccounts() {
    // Setup
    DML.mock('AccountService.deleteInactiveAccounts').allDeletes();

    // Test
    Test.startTest();
    new AccountService().deleteInactiveAccounts();
    Test.stopTest();

    // Verify
    DML.Result result = DML.retrieveResultFor('AccountService.deleteInactiveAccounts');

    DML.OperationResult accountResult = result.deletesOf(Account.SObjectType);
    Assert.isFalse(accountResult.hasFailures(), 'No failures expected');
}

allDeletes

Mock all delete operations regardless of SObject type.

Signature

DML.mock(String identifier).allDeletes();

Class

public class DataService {
    public void cleanupOldRecords() {
        List<Account> accounts = [SELECT Id FROM Account WHERE CreatedDate < LAST_YEAR];
        List<Contact> contacts = [SELECT Id FROM Contact WHERE CreatedDate < LAST_YEAR];

        new DML()
            .toDelete(accounts)
            .toDelete(contacts)
            .identifier('DataService.cleanupOldRecords')
            .commitWork();
    }
}

Test

@IsTest
static void shouldMockMultipleSObjectTypes() {
    // Setup
    DML.mock('DataService.cleanupOldRecords').allDeletes();

    // Test
    Test.startTest();
    new DataService().cleanupOldRecords();
    Test.stopTest();

    // Verify
    DML.Result result = DML.retrieveResultFor('DataService.cleanupOldRecords');

    Assert.areEqual(2, result.deletes().size(), '2 SObject types mocked');
}

deletesFor

Mock delete operations only for a specific SObject type. Other SObject types will be deleted from the database.

Signature

DML.mock(String identifier).deletesFor(SObjectType objectType);

Class

public class DataService {
    public void cleanupOldRecords() {
        List<Account> accounts = [SELECT Id FROM Account WHERE CreatedDate < LAST_YEAR];
        List<Contact> contacts = [SELECT Id FROM Contact WHERE CreatedDate < LAST_YEAR];

        new DML()
            .toDelete(accounts)
            .toDelete(contacts)
            .identifier('DataService.cleanupOldRecords')
            .commitWork();
    }
}

Test

@IsTest
static void shouldMockOnlyAccountDeletes() {
    // Setup - Mock only Account deletes
    DML.mock('DataService.cleanupOldRecords').deletesFor(Account.SObjectType);

    // Test
    Test.startTest();
    new DataService().cleanupOldRecords();
    Test.stopTest();

    // Verify
    DML.Result result = DML.retrieveResultFor('DataService.cleanupOldRecords');

    Assert.areEqual(2, result.deletes().size(), '2 SObject types in result');
    // Account was mocked, Contact was actually deleted
}

Retrieving Results

Use DML.retrieveResultFor() to access the mocked operation results.

Signature

DML.Result result = DML.retrieveResultFor(String identifier);

Class

public class AccountService {
    public void deleteAccount(Id accountId) {
        new DML()
            .toDelete(accountId)
            .identifier('AccountService.deleteAccount')
            .commitWork();
    }
}

Test

@IsTest
static void shouldAccessRecordResults() {
    // Setup
    DML.mock('AccountService.deleteAccount').allDeletes();

    // Test
    Test.startTest();
    new AccountService().deleteAccount(DML.randomIdGenerator.get(Account.SObjectType));
    Test.stopTest();

    // Verify
    DML.Result result = DML.retrieveResultFor('AccountService.deleteAccount');
    DML.OperationResult opResult = result.deletesOf(Account.SObjectType);

    Assert.areEqual(Account.SObjectType, opResult.objectType(), 'Should be Account type');
    Assert.areEqual(DML.OperationType.DELETE_DML, opResult.operationType(), 'Should be DELETE operation');
    Assert.isFalse(opResult.hasFailures(), 'Should have no failures');
}