fix testcase for newer Python

Author: taoky

frontend/tests/auth_test.py

@@ -110,14 +110,14 @@ def test_ustc(self):
         self.c.logout()
         resp = self.c.get("/accounts/ustc/login/", {"ticket": "ST-1234567890"})
         self.assertRedirects(resp, reverse("hub"), target_status_code=302)
-        self.assert_(auth.get_user(self.c).is_authenticated)
+        self.assertTrue(auth.get_user(self.c).is_authenticated)
 
     @mock.patch("frontend.auth_providers.cas.urlopen", new=mock_urlopen)
     def test_sustech(self):
         self.c.logout()
         resp = self.c.get("/accounts/sustech/login/", {"ticket": "ST-1234567890"})
         self.assertRedirects(resp, reverse("hub"), target_status_code=302)
-        self.assert_(auth.get_user(self.c).is_authenticated)
+        self.assertTrue(auth.get_user(self.c).is_authenticated)
 
 
 class AccountLogViewPermission(TestCase):
@@ -141,7 +141,7 @@ def test_low_privilege(self):
         # get a ustc account
         self.c.logout()
         resp = self.c.get("/accounts/sustech/login/", {"ticket": "ST-1234567890"})
-        self.assert_(auth.get_user(self.c).is_authenticated)
+        self.assertTrue(auth.get_user(self.c).is_authenticated)
         resp = self.c.post(
             reverse("account"),
             data=json.dumps({"method": "accountlog", "user": self.u.pk}),

frontend/tests/command_test.py

@@ -96,16 +96,16 @@ def test_import(self):
         context = Context(elevated=True)
         challenges = {i.name: i for i in Challenge.get_all(context)}
         keys = challenges.keys()
-        self.assert_("示例题目 1" not in keys)
-        self.assert_("示例题目 2" in keys)
-        self.assert_("示例题目 3" in keys)
+        self.assertTrue("示例题目 1" not in keys)
+        self.assertTrue("示例题目 2" in keys)
+        self.assertTrue("示例题目 3" in keys)
         c2 = challenges["示例题目 2"]
         c3 = challenges["示例题目 3"]
-        self.assert_(c2.url_orig.endswith("/example.txt"))
+        self.assertTrue(c2.url_orig.endswith("/example.txt"))
         self.assertEqual(c3.url_orig, "http://example.com/?token={token}")
         self.assertEqual(c2.check_url_clicked, False)
         self.assertEqual(c3.check_url_clicked, True)
-        self.assert_("codehilite" in c3.detail)
+        self.assertTrue("codehilite" in c3.detail)
         flag1 = c2.flags[0]
         self.assertEqual(flag1["type"], "expr")
         self.assertEqual("flag{2=2, 1:14}", expr_flag(flag1["flag"], "1:14"))