def testYMidValueOk(self):
     coordinate = Coordinates(0, 5)
     self.assertTrue(coordinate.valid())
 def testYHighBoundaryOk(self):
     coordinate = Coordinates(0, 9)
     self.assertTrue(coordinate.valid())
 def testYTooBig(self):
     coordinate = Coordinates(0, 10)
     self.assertFalse(coordinate.valid())
 def testYLowBoundaryOk(self):
     coordinate = Coordinates(0, 0)
     self.assertTrue(coordinate.valid())
 def testYTooSmall(self):
     coordinate = Coordinates(0, -1)
     self.assertFalse(coordinate.valid())
 def testXHighBoundaryOk(self):
     coordinate = Coordinates(9, 0)
     self.assertTrue(coordinate.valid())
 def testXMidValueOk(self):
     coordinate = Coordinates(5, 0)
     self.assertTrue(coordinate.valid())
 def testXTooBig(self):
     coordinate = Coordinates(10, 0)
     self.assertFalse(coordinate.valid())
 def testXTooSmall(self):
     coordinate = Coordinates(-1, 0)
     self.assertFalse(coordinate.valid())