Bring field2int under test.

modified:   src/ZPublisher/Converters.py
modified:   src/ZPublisher/tests/test_Converters.py

src/ZPublisher/Converters.py

@@ -91,7 +91,9 @@ def field2int(v):
             return int(v)
         except ValueError:
             raise ValueError(
-                "An integer was expected in the value %r" % escape(v, True)
+                "An integer was expected in the value %r" % escape(
+                    v, quote=True
+                )
             )
     raise ValueError('Empty entry when <strong>integer</strong> expected')
 

src/ZPublisher/tests/test_Converters.py

@@ -54,6 +54,28 @@ def test_field2boolean_with_emtpy_list(self):
         expected = False
         self.assertEqual(field2boolean(to_convert), expected)
 
+    def test_field2int_with_list_of_numbers(self):
+        from ZPublisher.Converters import field2int
+        to_convert = ["1", "2", "3"]
+        expected = [1, 2, 3]
+        self.assertEqual(field2int(to_convert), expected)
+
+    def test_field2int_with_regular_number(self):
+        from ZPublisher.Converters import field2int
+        to_convert = "1"
+        expected = 1
+        self.assertEqual(field2int(to_convert), expected)
+
+    def test_field2int_with_illegal_value(self):
+        from ZPublisher.Converters import field2int
+        to_convert = "<"
+        self.assertRaises(ValueError, field2int, to_convert)
+
+    def test_field2int_with_empty_value(self):
+        from ZPublisher.Converters import field2int
+        to_convert = ""
+        self.assertRaises(ValueError, field2int, to_convert)
+
     def test_field2string_with_string(self):
         from ZPublisher.Converters import field2string
         to_convert = 'to_convert'