Improve code coverage

Author: tomasr8

tests/test_support.py

@@ -74,6 +74,12 @@ def test_pgettext(self):
         self.assertEqualTypeToo('VohCTX1', self.translations.pgettext('foo',
                                                                       'foo1'))
 
+    def test_pgettext_fallback(self):
+        fallback = self.translations._fallback
+        self.translations._fallback = support.NullTranslations()
+        assert self.translations.pgettext('foo', 'bar') == 'bar'
+        self.translations._fallback = fallback
+
     def test_upgettext(self):
         self.assertEqualTypeToo('Voh', self.translations.ugettext('foo'))
         self.assertEqualTypeToo('VohCTX', self.translations.upgettext('foo',