def test_neg_expression(self):
exp = rules.NegExpression(None, rules.ValueTerminal(None, "10"))
c = DictContext({})
self.assertEquals(exp.eval(c), -10)
exp = rules.NegExpression(None,
rules.ReferenceTerminal(None, "${foo}"))
c = DictContext({'foo': 2})
self.assertEquals(exp.eval(c), -2)
def test_one_param_expression(self):
exp = rules.OneParamExpression(None, rules.ValueTerminal(None, "10"))
c = DictContext({})
self.assertEquals(exp.eval(c), 10)
exp = rules.OneParamExpression(None,
rules.ReferenceTerminal(None, "${foo}"))
c = DictContext({'foo': 'Foo string'})
self.assertEquals(exp.eval(c), 'Foo string')
def test_and_expression(self):
exp = rules.AndExpression(None, rules.ValueTerminal(None, True),
rules.ReferenceTerminal(None, "${foo}"))
c = DictContext({'foo': 1})
self.assertEquals(exp.eval(c), True)
c = DictContext({'foo': 0})
self.assertEquals(exp.eval(c), False)
c = DictContext({'foo': ""})
self.assertEquals(exp.eval(c), False)
c = DictContext({'foo': False})
self.assertEquals(exp.eval(c), False)
c = DictContext({'foo': True})
self.assertEquals(exp.eval(c), True)
def test_set_expression(self):
exp = rules.SetExpression(None, rules.ReferenceTerminal(None, "${t}"),
rules.ValueTerminal(None, "10"))
c = DictContext({'foo': 10, 't': None})
self.assertEquals(exp.eval(c), True)
self.assertEquals(c.data['t'], 10)
def test_div_expression(self):
exp = rules.DivideExpression(None, rules.ValueTerminal(None, "10"),
rules.ReferenceTerminal(None, "${foo}"))
c = DictContext({'foo': 10})
self.assertEquals(exp.eval(c), 1)