Refs #27753 -- Deprecated django.utils.encoding.force_text() and smart_text().

tests/utils_tests/test_encoding_deprecations.py

@@ -0,0 +1,24 @@
+from django.test import SimpleTestCase, ignore_warnings
+from django.utils.deprecation import RemovedInDjango40Warning
+from django.utils.encoding import force_text, smart_text
+from django.utils.functional import SimpleLazyObject
+from django.utils.translation import gettext_lazy
+
+
+@ignore_warnings(category=RemovedInDjango40Warning)
+class TestDeprecatedEncodingUtils(SimpleTestCase):
+
+    def test_force_text(self):
+        s = SimpleLazyObject(lambda: 'x')
+        self.assertIs(type(force_text(s)), str)
+
+    def test_smart_text(self):
+        class Test:
+            def __str__(self):
+                return 'ŠĐĆŽćžšđ'
+
+        lazy_func = gettext_lazy('x')
+        self.assertIs(smart_text(lazy_func), lazy_func)
+        self.assertEqual(smart_text(Test()), '\u0160\u0110\u0106\u017d\u0107\u017e\u0161\u0111')
+        self.assertEqual(smart_text(1), '1')
+        self.assertEqual(smart_text('foo'), 'foo')