new_contents: # -*- coding: utf-8 -*-
  from chanjo.store.utils import predict_gender
  
  
  def test_predict_gender():
      assert predict_gender(x_coverage=10.2, y_coverage=8.1) == 'male'
      assert predict_gender(x_coverage=20.9, y_coverage=.01) == 'female'
      # shouldn't raise ``ZeroDivisionError``
      assert predict_gender(x_coverage=5.12, y_coverage=0) == 'female'
  
      # what does this even mean?
      assert predict_gender(x_coverage=0, y_coverage=10) == 'unknown'
  
subject: add test for predict gender function