Overriding uvm_config_db variable

UVM
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1

I am adding a new agent to my TB to support 2 test cases
I want to keep this new agent as active for only these 2 tests.

Instead of adding

uvm_config_db#(uvm_active_passive_enum)::(this, "m_env.my_agent", "is_active", UVM_PASSIVE)

to all other test cases, I would like to add the UVM_PASSIVE set up to base class

class base_test extends uvm_test; 
function void build_phase(uvm_phase phase);
  super.build_phase(phase);
  
  m_env = env::type_id::create("my_env",this);
  uvm_config_db#(uvm_active_passive_enum)::(this, "m_env.my_agent", "is_active", UVM_PASSIVE)
endfunction : build_phase
.........
endclass : base_test

In this case, can I make agent as active for the 2 tests such that is_active variable set in base_test will be overridden.

class error_test extends base_test; 
function void build_phase(uvm_phase phase);
  super.build_phase(phase);
  
  m_env = env::type_id::create("my_env",this);
  uvm_config_db#(uvm_active_passive_enum)::(this, "m_env.my_agent", "is_active", UVM_ACTIVE)
endfunction : build_phase
.........
endclass : error_test
2

In reply to bachan21:

This works

One must be careful to give the path by giving the names given to the components during create() method.

m_env = env::type_id::create(“my_env”,this);
uvm_config_db#(uvm_active_passive_enum)::(this, “my_env.my_agent”, “is_active”, UVM_ACTIVE)