mirror of https://github.com/django/django.git
81 lines
2.8 KiB
Python
81 lines
2.8 KiB
Python
from django.template import Context, Template, Variable, VariableDoesNotExist
|
|
from django.template.base import DebugLexer, Lexer, TokenType
|
|
from django.test import SimpleTestCase
|
|
from django.utils.translation import gettext_lazy
|
|
|
|
|
|
class LexerTestMixin:
|
|
template_string = (
|
|
'text\n'
|
|
'{% if test %}{{ varvalue }}{% endif %}'
|
|
'{#comment {{not a var}} %{not a block}% #}'
|
|
)
|
|
expected_token_tuples = [
|
|
# (token_type, contents, lineno, position)
|
|
(TokenType.TEXT, 'text\n', 1, (0, 5)),
|
|
(TokenType.BLOCK, 'if test', 2, (5, 18)),
|
|
(TokenType.VAR, 'varvalue', 2, (18, 32)),
|
|
(TokenType.BLOCK, 'endif', 2, (32, 43)),
|
|
(TokenType.COMMENT, 'comment {{not a var}} %{not a block}%', 2, (43, 85)),
|
|
]
|
|
|
|
def test_tokenize(self):
|
|
tokens = self.lexer_class(self.template_string).tokenize()
|
|
token_tuples = [(t.token_type, t.contents, t.lineno, t.position) for t in tokens]
|
|
self.assertEqual(token_tuples, self.make_expected())
|
|
|
|
def make_expected(self):
|
|
raise NotImplementedError('This method must be implemented by a subclass.')
|
|
|
|
|
|
class LexerTests(LexerTestMixin, SimpleTestCase):
|
|
lexer_class = Lexer
|
|
|
|
def make_expected(self):
|
|
# The non-debug lexer does not record position.
|
|
return [t[:-1] + (None,) for t in self.expected_token_tuples]
|
|
|
|
|
|
class DebugLexerTests(LexerTestMixin, SimpleTestCase):
|
|
lexer_class = DebugLexer
|
|
|
|
def make_expected(self):
|
|
return self.expected_token_tuples
|
|
|
|
|
|
class TemplateTests(SimpleTestCase):
|
|
def test_lazy_template_string(self):
|
|
template_string = gettext_lazy('lazy string')
|
|
self.assertEqual(Template(template_string).render(Context()), template_string)
|
|
|
|
def test_repr(self):
|
|
template = Template(
|
|
'<html><body>\n'
|
|
'{% if test %}<h1>{{ varvalue }}</h1>{% endif %}'
|
|
'</body></html>'
|
|
)
|
|
self.assertEqual(
|
|
repr(template),
|
|
'<Template template_string="<html><body>{% if t...">',
|
|
)
|
|
|
|
|
|
class VariableDoesNotExistTests(SimpleTestCase):
|
|
def test_str(self):
|
|
exc = VariableDoesNotExist(msg='Failed lookup in %r', params=({'foo': 'bar'},))
|
|
self.assertEqual(str(exc), "Failed lookup in {'foo': 'bar'}")
|
|
|
|
|
|
class VariableTests(SimpleTestCase):
|
|
def test_integer_literals(self):
|
|
self.assertEqual(Variable('999999999999999999999999999').literal, 999999999999999999999999999)
|
|
|
|
def test_nonliterals(self):
|
|
"""Variable names that aren't resolved as literals."""
|
|
var_names = []
|
|
for var in ('inf', 'infinity', 'iNFiniTy', 'nan'):
|
|
var_names.extend((var, '-' + var, '+' + var))
|
|
for var in var_names:
|
|
with self.subTest(var=var):
|
|
self.assertIsNone(Variable(var).literal)
|