text: from starry_process import StarryProcess
  import numpy as np
  
  
  def test_variance():
  
      sp = StarryProcess(normalized=False)
      cov = sp.cov([0.0, 0.1]).eval()
      var = sp.cov([0.0]).eval()
  
      assert np.allclose(cov[0, 0], var)
  