mirror of
https://github.com/django/django.git
synced 2025-11-04 13:39:16 +00:00
55 lines
2.1 KiB
Python
55 lines
2.1 KiB
Python
import unittest
|
|
|
|
from django.template.smartif import IfParser
|
|
|
|
|
|
class SmartIfTests(unittest.TestCase):
|
|
|
|
def assertCalcEqual(self, expected, tokens):
|
|
self.assertEqual(expected, IfParser(tokens).parse().eval({}))
|
|
|
|
# We only test things here that are difficult to test elsewhere
|
|
# Many other tests are found in the main tests for builtin template tags
|
|
# Test parsing via the printed parse tree
|
|
def test_not(self):
|
|
var = IfParser(["not", False]).parse()
|
|
self.assertEqual("(not (literal False))", repr(var))
|
|
self.assertTrue(var.eval({}))
|
|
|
|
self.assertFalse(IfParser(["not", True]).parse().eval({}))
|
|
|
|
def test_or(self):
|
|
var = IfParser([True, "or", False]).parse()
|
|
self.assertEqual("(or (literal True) (literal False))", repr(var))
|
|
self.assertTrue(var.eval({}))
|
|
|
|
def test_in(self):
|
|
list_ = [1, 2, 3]
|
|
self.assertCalcEqual(True, [1, 'in', list_])
|
|
self.assertCalcEqual(False, [1, 'in', None])
|
|
self.assertCalcEqual(False, [None, 'in', list_])
|
|
|
|
def test_not_in(self):
|
|
list_ = [1, 2, 3]
|
|
self.assertCalcEqual(False, [1, 'not', 'in', list_])
|
|
self.assertCalcEqual(True, [4, 'not', 'in', list_])
|
|
self.assertCalcEqual(False, [1, 'not', 'in', None])
|
|
self.assertCalcEqual(True, [None, 'not', 'in', list_])
|
|
|
|
def test_precedence(self):
|
|
# (False and False) or True == True <- we want this one, like Python
|
|
# False and (False or True) == False
|
|
self.assertCalcEqual(True, [False, 'and', False, 'or', True])
|
|
|
|
# True or (False and False) == True <- we want this one, like Python
|
|
# (True or False) and False == False
|
|
self.assertCalcEqual(True, [True, 'or', False, 'and', False])
|
|
|
|
# (1 or 1) == 2 -> False
|
|
# 1 or (1 == 2) -> True <- we want this one
|
|
self.assertCalcEqual(True, [1, 'or', 1, '==', 2])
|
|
|
|
self.assertCalcEqual(True, [True, '==', True, 'or', True, '==', False])
|
|
|
|
self.assertEqual("(or (and (== (literal 1) (literal 2)) (literal 3)) (literal 4))",
|
|
repr(IfParser([1, '==', 2, 'and', 3, 'or', 4]).parse()))
|