class TestConstraint(unittest.TestCase):
"""test methods of TestConstraint"""
def setUp(self):
self.c = Constraint('@1')
return
def test___init__(self):
"""check Constraint.__init__()
"""
self.assertTrue(1 in self.c.parguess)
self.assertEqual(1, len(self.c.parguess))
c1 = Constraint('2*@2 + 3.0', 13.0)
self.assertEqual(1, len(c1.parguess))
self.assertEqual(5.0, c1.parguess[2])
return
def test_guess(self):
"""check Constraint.guess()
"""
self.c.guess(9)
self.assertEqual(1, len(self.c.parguess))
self.assertEqual(9, self.c.parguess[1])
return
def test___setattr__(self):
"""check Constraint.__setattr__()
"""
self.c.guess(9)
self.c.formula = '9*@7 +18'
self.assertEqual(1, len(self.c.parguess))
self.assertEqual(-1.0, self.c.parguess[7])
self.assertRaises(ControlSyntaxError, setattr,
self.c, 'formula', '')
self.assertRaises(ControlSyntaxError, setattr,
self.c, 'formula', '@@1')
self.assertRaises(ControlSyntaxError, setattr, self.c,
'formula', '@1*/55')
self.assertRaises(ControlSyntaxError, setattr, self.c,
'formula', '@1**3')
return
def test_evalFormula(self):
"""check Constraint.evalFormula()
"""
value = self.c.evalFormula({1 : 5.0})
self.assertEqual(5.0, value)
self.c.formula = 'sin(@3)'
from math import pi, sqrt
value = self.c.evalFormula({3 : pi/3.0})
self.assertAlmostEqual(sqrt(0.75), value, 8)
return
class TestConstraint(unittest.TestCase):
"""test methods of TestConstraint"""
def setUp(self):
self.c = Constraint('@1')
return
def test___init__(self):
"""check Constraint.__init__()
"""
self.failUnless(1 in self.c.parguess)
self.assertEqual(1, len(self.c.parguess))
c1 = Constraint('2*@2 + 3.0', 13.0)
self.assertEqual(1, len(c1.parguess))
self.assertEqual(5.0, c1.parguess[2])
return
def test_guess(self):
"""check Constraint.guess()
"""
self.c.guess(9)
self.assertEqual(1, len(self.c.parguess))
self.assertEqual(9, self.c.parguess[1])
return
def test___setattr__(self):
"""check Constraint.__setattr__()
"""
self.c.guess(9)
self.c.formula = '9*@7 +18'
self.assertEqual(1, len(self.c.parguess))
self.assertEqual(-1.0, self.c.parguess[7])
self.assertRaises(ControlSyntaxError, setattr, self.c, 'formula', '')
self.assertRaises(ControlSyntaxError, setattr, self.c, 'formula',
'@@1')
self.assertRaises(ControlSyntaxError, setattr, self.c, 'formula',
'@1*/55')
self.assertRaises(ControlSyntaxError, setattr, self.c, 'formula',
'@1**3')
return
def test_evalFormula(self):
"""check Constraint.evalFormula()
"""
value = self.c.evalFormula({1: 5.0})
self.assertEqual(5.0, value)
self.c.formula = 'sin(@3)'
from math import pi, sqrt
value = self.c.evalFormula({3: pi / 3.0})
self.assertAlmostEqual(sqrt(0.75), value, 8)
return
