Salesforce Test Factory Base

Usage:

// Instantiate a new instance of the base factory
TestFactoryBase base = new TestFactoryBase();

// The Base Factory will attempt to pre-fill all the fields that are 
// required and typically used for a specific SObject 
Account acct = (Account)base.buildSObject(new Account());
insert acct;

// You can also assign values into the object constructor which will 
// override the defaults.
//
// This also works when you are requesting a specific ObjectDefinition!!
Contact con = (Contact)base.createSObject(new Contact(AccountId = acct.Id));

// You can also specify a specific set of overrides to define the shape of an object
Account customer = (Account)base.createSObject(new Account(), 'CustomerDef');

// You can also specify a number of records you'd like to create 
List<Account> accts = base.createSObjectList(new Account(), 200);

/*********************************************************************************************** 
*   Build vs Create Methods
***********************************************************************************************/

// Build methods will setup and return the object(s) without inserting it
Account acct = (Account)base.buildSObject(new Account());

// Create methods will setup and insert the object(s) thats returned
Account acct = (Account)base.createSObject(new Account());

/*********************************************************************************************** 
*   Name Field Map Configuration
***********************************************************************************************/

// Update the map with SObject => Field API Name pairing for special objects that don't have a
// standard Name field or have an auto numbered Name field for incrementing in bulk requests
private Map<String, String> nameFieldMap = new Map<String, String> {
    'Contact' => 'LastName',
    'Case'    => 'Subject'
};

/*********************************************************************************************** 
*   TestFactoryBase is Extendable
***********************************************************************************************/

// You can use it to borrow Base test methods in existing or new 
// object test factories
public class AccountTestFactory extends TestFactoryBase {}

// You can leverage the same Factory Base methods from the object test factory
AccountTestFactory acctFactory = new AccountTestFactory();
Account acct = (Account)acctFactory.buildSObject(new Account());

/***********************************************************************************************  
*   You can also build your own object configurations by implementing
*   the ObjectDefinition interface and storing the class into the
*   associated [SObject]TestFactory.
*
*   NOTE: Each ObjectDefinition should end with the 'Def' suffix
*         in order for the framework to identify the appropriate
*         definition.
***********************************************************************************************/

public class CustomerDef implements ObjectDefinition {
    public Map<String, Object> getDefinition() {
        return new Map<String, Object> {
            'Name'         => 'Test Customer',
            'Type'         => 'Customer',
            'RecordTypeId' => AccountConstants.RECORD_TYPE_CUSTOMER_ID
        };
    }
}