Added direct test for the dynamic unit of work ordering resolution

framework/default/ortoo-core/default/classes/fflib-extension/tests/ortoo_DynamicSobjectUnitOfWorkTest.cls

@@ -523,6 +523,35 @@ private without sharing class ortoo_DynamicSobjectUnitOfWorkTest
 		ortoo_Asserts.assertContains( 'SObject type Contact is invalid for publishing within this unit of work', exceptionMessage, 'registerPublishAfterFailureTransaction, when called with a non event, will throw an exception' );
 	}
 
+	@isTest
+	private static void onCommitWorkStarting_whenCalled_setsTheOrderOfTheOperations() // NOPMD: Test method name format
+	{
+		Opportunity opportunityRecord = new Opportunity( Name = 'test' );
+		Contact contactRecord = new Contact( LastName = 'test' );
+		Account accountRecord = new Account( Name = 'test' );
+
+		Test.startTest();
+
+			ortoo_DynamicSobjectUnitOfWork uow = new ortoo_DynamicSobjectUnitOfWork();
+
+			uow.registerNew( opportunityRecord );
+			uow.registerNew( contactRecord );
+			uow.registerNew( accountRecord );
+
+			uow.registerRelationship( contactRecord, Contact.AccountId, accountRecord );
+			uow.registerRelationship( opportunityRecord, Opportunity.AccountId, accountRecord );
+
+			uow.onCommitWorkStarting();
+
+		Test.stopTest();
+
+		List<SobjectType> expected = new List<SobjectType>{
+			Account.sobjectType, Contact.sobjectType, Opportunity.sobjectType
+		};
+
+		System.assertEquals( expected, uow.m_sObjectTypes, 'onCommitWorkStarting, when called, will set the order of operations' );
+	}
+
 	@isTest
 	private static void commitWork_whenGivenCircularReferences_throwsAnException() // NOPMD: Test method name format
 	{