Fixed #27505 -- Allowed customizing Paginator's error messages.

1 files changed, 28 insertions, 0 deletions

diff --git a/tests/pagination/tests.py b/tests/pagination/tests.py
index a04b6dfe8a..1fa9ea2f02 100644
--- a/tests/pagination/tests.py
+++ b/tests/pagination/tests.py
@@ -128,6 +128,34 @@ class PaginationTests(SimpleTestCase):
         with self.assertRaises(PageNotAnInteger):
             paginator.validate_number(1.2)
 
+    def test_error_messages(self):
+        error_messages = {
+            "invalid_page": "Wrong page number",
+            "min_page": "Too small",
+            "no_results": "There is nothing here",
+        }
+        paginator = Paginator([1, 2, 3], 2, error_messages=error_messages)
+        msg = "Wrong page number"
+        with self.assertRaisesMessage(PageNotAnInteger, msg):
+            paginator.validate_number(1.2)
+        msg = "Too small"
+        with self.assertRaisesMessage(EmptyPage, msg):
+            paginator.validate_number(-1)
+        msg = "There is nothing here"
+        with self.assertRaisesMessage(EmptyPage, msg):
+            paginator.validate_number(3)
+
+        error_messages = {"min_page": "Too small"}
+        paginator = Paginator([1, 2, 3], 2, error_messages=error_messages)
+        # Custom message.
+        msg = "Too small"
+        with self.assertRaisesMessage(EmptyPage, msg):
+            paginator.validate_number(-1)
+        # Default message.
+        msg = "That page contains no results"
+        with self.assertRaisesMessage(EmptyPage, msg):
+            paginator.validate_number(3)
+
     def test_float_integer_page(self):
         paginator = Paginator([1, 2, 3], 2)
         self.assertEqual(paginator.validate_number(1.0), 1)