even better fix

test/test_minimization/test_descent_minimizers.py

@@ -21,7 +21,7 @@ class Test_DescentMinimizers(unittest.TestCase):
 
     @expand([[minimizer] for minimizer in minimizers])
     def test_interface(self, minimizer):
-        iteration_limit = 30
+        iteration_limit = 100
         convergence_level = 4
         convergence_tolerance = 1E-6
         callback = lambda z: z
@@ -43,7 +43,7 @@ class Test_DescentMinimizers(unittest.TestCase):
         covariance = DiagonalOperator(space, diagonal=covariance_diagonal)
         energy = QuadraticPotential(position=starting_point,
                                     eigenvalues=covariance)
-        minimizer = minimizer_class(iteration_limit=100,
+        minimizer = minimizer_class(iteration_limit=30,
                                     convergence_tolerance=1e-10)
 
         (energy, convergence) = minimizer(energy)