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from django.http import QueryDict
from django.template import RequestContext
from django.test import RequestFactory, SimpleTestCase
from ..utils import setup
class QueryStringTagTests(SimpleTestCase):
request_factory = RequestFactory()
def assertRenderEqual(self, template_name, context, expected):
output = self.engine.render_to_string(template_name, context)
self.assertEqual(output, expected)
@setup({"test_querystring_empty_get_params": "{% querystring %}"})
def test_querystring_empty_get_params(self):
context = RequestContext(self.request_factory.get("/"))
self.assertRenderEqual(
"test_querystring_empty_get_params", context, expected=""
)
@setup({"test_querystring_remove_all_params": "{% querystring a=None %}"})
def test_querystring_remove_all_params(self):
non_empty_context = RequestContext(self.request_factory.get("/?a=b"))
empty_context = RequestContext(self.request_factory.get("/"))
for context, expected in [(non_empty_context, "?"), (empty_context, "")]:
with self.subTest(expected=expected):
self.assertRenderEqual(
"test_querystring_remove_all_params",
context,
expected,
)
@setup({"test_querystring_non_empty_get_params": "{% querystring %}"})
def test_querystring_non_empty_get_params(self):
request = self.request_factory.get("/", {"a": "b"})
context = RequestContext(request)
self.assertRenderEqual(
"test_querystring_non_empty_get_params", context, expected="?a=b"
)
@setup({"querystring_multiple": "{% querystring %}"})
def test_querystring_multiple(self):
request = self.request_factory.get("/", {"x": "y", "a": "b"})
context = RequestContext(request)
self.assertRenderEqual("querystring_multiple", context, expected="?x=y&a=b")
@setup({"test_querystring_empty_params": "{% querystring qd %}"})
def test_querystring_empty_params(self):
cases = [None, {}, QueryDict()]
request = self.request_factory.get("/")
for param in cases:
with self.subTest(param=param):
context = RequestContext(request, {"qd": param})
self.assertRenderEqual(
"test_querystring_empty_params", context, expected=""
)
@setup({"querystring_replace": "{% querystring a=1 %}"})
def test_querystring_replace(self):
request = self.request_factory.get("/", {"x": "y", "a": "b"})
context = RequestContext(request)
self.assertRenderEqual("querystring_replace", context, expected="?x=y&a=1")
@setup({"querystring_add": "{% querystring test_new='something' %}"})
def test_querystring_add(self):
request = self.request_factory.get("/", {"a": "b"})
context = RequestContext(request)
self.assertRenderEqual(
"querystring_add", context, expected="?a=b&test_new=something"
)
@setup({"querystring_remove": "{% querystring test=None a=1 %}"})
def test_querystring_remove(self):
request = self.request_factory.get("/", {"test": "value", "a": "1"})
context = RequestContext(request)
self.assertRenderEqual("querystring_remove", context, expected="?a=1")
@setup({"querystring_remove_nonexistent": "{% querystring nonexistent=None a=1 %}"})
def test_querystring_remove_nonexistent(self):
request = self.request_factory.get("/", {"x": "y", "a": "1"})
context = RequestContext(request)
self.assertRenderEqual(
"querystring_remove_nonexistent", context, expected="?x=y&a=1"
)
@setup({"querystring_list": "{% querystring a=my_list %}"})
def test_querystring_add_list(self):
request = self.request_factory.get("/")
context = RequestContext(request, {"my_list": [2, 3]})
self.assertRenderEqual("querystring_list", context, expected="?a=2&a=3")
@setup({"querystring_dict": "{% querystring a=my_dict %}"})
def test_querystring_add_dict(self):
request = self.request_factory.get("/")
context = RequestContext(request, {"my_dict": {i: i * 2 for i in range(3)}})
self.assertRenderEqual(
"querystring_dict", context, expected="?a=0&a=1&a=2"
)
@setup({"querystring_query_dict": "{% querystring request.GET a=2 %}"})
def test_querystring_with_explicit_query_dict(self):
request = self.request_factory.get("/", {"a": 1})
self.assertRenderEqual(
"querystring_query_dict", {"request": request}, expected="?a=2"
)
@setup({"querystring_query_dict_no_request": "{% querystring my_query_dict a=2 %}"})
def test_querystring_with_explicit_query_dict_and_no_request(self):
context = {"my_query_dict": QueryDict("a=1&b=2")}
self.assertRenderEqual(
"querystring_query_dict_no_request", context, expected="?a=2&b=2"
)
@setup({"querystring_no_request_no_query_dict": "{% querystring %}"})
def test_querystring_without_request_or_explicit_query_dict(self):
msg = "'Context' object has no attribute 'request'"
with self.assertRaisesMessage(AttributeError, msg):
self.engine.render_to_string("querystring_no_request_no_query_dict")
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