def test_predicate_2 (self):
test = NotifyTestObject ()
variable = Variable (0)
variable.predicate (lambda value: 0 <= value < 10).store (test.simple_handler)
variable.value = 5
variable.value = 15
variable.value = -1
variable.value = 9
variable.value = 3
test.assert_results (True, False, True)
def test_predicate_1 (self):
variable = Variable (0)
is_single_digit = variable.predicate (lambda value: 0 <= value < 10)
self.assert_(is_single_digit)
self.assert_(not is_single_digit.mutable)
variable.value = -5
self.assert_(not is_single_digit)
variable.value = 9
self.assert_(is_single_digit)
variable.value = 100
self.assert_(not is_single_digit)
