Deal with unicode strings

The ironic client was trying to convert unicode strings received from the
API to ascii causing it to fail, this patch will correct it.

Change-Id: I8765abb188f758f982807a38f5d291fbc2be0da9
Closes-Bug: #1247156

ironicclient/common/utils.py

@@ -108,9 +108,9 @@ def print_dict(d, dict_property="Property", wrap=0, outfile=None):
     for k, v in sorted(six.iteritems(d), key=lambda x: x[0]):
         # convert dict to str to check length
         if isinstance(v, dict):
-            v = str(v)
+            v = six.text_type(v)
         if wrap > 0:
-            v = textwrap.fill(str(v), wrap)
+            v = textwrap.fill(six.text_type(v), wrap)
         # if value has a newline, add in multiple rows
         # e.g. fault with stacktrace
         if v and isinstance(v, six.string_types) and r'\n' in v:

ironicclient/tests/test_utils.py

@@ -78,3 +78,9 @@ def test_args_array_to_patch_remove(self):
                                           my_args['attributes'])
         self.assertEqual(patch, [{'op': 'remove', 'path': '/foo'},
                                  {'op': 'remove', 'path': '/extra/bar'}])
+
+    def test_print_dict_unicode(self):
+        unicode_str = u'\u2026'
+        output_file = six.StringIO()
+        utils.print_dict({'K': 'k', 'Key': unicode_str}, outfile=output_file)
+        self.assertIn(unicode_str, output_file.getvalue())