A test object factory potential implementation

factories.m

// Given class Customer

//defining factories
[MFFactory defineFactoryForClass:[Customer class] withBlock:^(MFFactory *customer) {
   [customer sequenceFor:@"name" do:^(int i) {
       return @"Test Customer %d";
   }];

    customer.status = @"active";

    [customer sequenceFor:@"email" do:^(int i) {
        return @"customer-%d@example.com"
    ];
}];

//give me a customer
Customer *testCustomer = [MFFactory buildObjectOfClass:[Customer class]];

// or perhaps this, though you'd have to define it as a category method to suppress the warnings
Customer *testCustomer = [MFFactory customer]; 

//give me a customer with suspended status
Customer *suspendedCustomer = [MFFactory buioldObjectOfClass:[Customer class] withParams:@{@"status":@"suspended"}];

factory_with_associations.m

// Given Customers have orders

//defining factories
[MFFactory defineFactoryForClass:[Customer class] withBlock:^(MFFactory *customer) {
   [customer sequenceFor:@"name" do:^(int i) {
       return @"Test Customer %d";
   }];

    customer.status = @"active";

    [customer associatedObjectsFor:@"orders" do:^{
       return @[[MFFactory order], [MFFactory order]];
    ];

    [customer sequenceFor:@"email" do:^(int i) {
        return @"customer-%d@example.com"
    ];
}];