@isTest
public class ActiveContactFactoryTest {
    public static List<Contact> getContact(String accountName, Integer numberOfCont, Integer activeCont){
        Account testAccount = new Account(Name = accountName);
        insert testAccount;
        List<Contact> contactList = new List<Contact>();
        for(Integer i = 0; i < numberOfCont; i++){
            Boolean isActive = i < activeCont;
            contactList.add(new Contact(LastName = 'Contact' + i + ' for ' + accountName, AccountId = testAccount.Id, Is_Active__c = isActive));
        }
        return contactList;
    }
}