Inject Dependencies

id2.dart

// Production
Get.lazyPut<MyService>(() => MyServiceImpl());
// Test
Get.lazyPut<MyService>(() => MyServiceMock());
// Call - same for either Production or Test
MyService.to.multiply(count1.value, count.value);


abstract class MyService {
  static MyService get to => Get.find();
  int multiply(int val1, int val2);
}

class MyServiceImpl extends MyService {
  MyServiceImpl() {
    print('MyServiceImpl ctor');
  }

  @override
  int multiply(int val1, int val2) {
    return val1 + val2;
  }
}

class MyServiceMock extends MyService {
  MyServiceMock() {
    print('MyServiceMock ctor');
  }

  @override
  int multiply(int val1, int val2) {
    return 100;
  }
}