code: def test_agent_fit():
      new_agent = agent.Agent(1, 1, 0, 1)
  
      assert new_agent.fit == sys.float_info.max
  
imports: import sys
  import numpy
  from opytimizer.core import agent
label_desc: Use image node_id 7 for calling a global function with example usage: test_agent_fit() without return types