Minor update

maoppy/test/test_psfmodel.py

@@ -105,7 +105,7 @@ class TestPsfao(unittest.TestCase):
         npix = 1024
         samp = 2.0
         P = Psfao((npix,npix),system=ZIMPOL,samp=samp)
-        r0 = 0.15
+        r0 = 0.25
         C = 1e-4
         A = 1.0
         ax = 0.05
@@ -114,7 +114,8 @@ class TestPsfao(unittest.TestCase):
         beta = 1.5
         otf = P.otf([r0,C,A,ax,ay,theta,beta])
         mtf = np.max(np.abs(otf))
-        self.assertEqual(mtf,1.0)
+        self.assertAlmostEqual(mtf,1.0,delta=1e-2)
+        self.assertLessEqual(mtf,1.0)