Test w3lib.util deprecation warnings

Author: Gallaecio

tests/test_util.py

@@ -0,0 +1,26 @@
+from unittest import TestCase
+
+from pytest import deprecated_call
+
+from w3lib.util import str_to_unicode, to_native_str, unicode_to_str
+
+
+class StrToUnicodeTestCase(TestCase):
+
+    def test_deprecation(self):
+        with deprecated_call():
+            str_to_unicode('')
+
+
+class ToNativeStrTestCase(TestCase):
+
+    def test_deprecation(self):
+        with deprecated_call():
+            to_native_str('')
+
+
+class UnicodeToStrTestCase(TestCase):
+
+    def test_deprecation(self):
+        with deprecated_call():
+            unicode_to_str('')