def testMultipleTick(self):
d = {'tmax':1,'tmin':0,'tticks':20,'ymin':0,'ymax':2,'yticks':25,'fn':lambda t,y:1}
r = len(list(sf.slopefield(d,trans=self.trans)))
self.assertEqual(r,20*25)
def testSingleTick(self):
d = {'tmax':1,'tmin':0,'tticks':1,'ymin':0,'ymax':2,'yticks':1,'fn':lambda t,y:1}
r = sf.slopefield(d,trans=self.trans)
self.assertAlmostEqual(r.sum(), 3)
