Add functional tests for image set

This patch includes functional tests for image set and it includes
a change to use the OSC utils.format_dict method to format the
properties.  This will give a more user friendly format to the image
commands and it gives a more consistent testable format to the
output.  Instead of:

{u'a': u'b', u'c': u'd'}

The user will see:

a=b, c=d

Change-Id: Ib396316586ffc5dbab231064d5b6dc9425507934

2 files changed, 7 insertions, 2 deletions

diff --git a/openstackclient/image/v1/image.py b/openstackclient/image/v1/image.py
index d4d45fa2..85a9e076 100644
--- a/openstackclient/image/v1/image.py
+++ b/openstackclient/image/v1/image.py
@@ -275,6 +275,7 @@ class CreateImage(show.ShowOne):
 
         info = {}
         info.update(image._info)
+        info['properties'] = utils.format_dict(info.get('properties', {}))
         return zip(*sorted(six.iteritems(info)))
 
 
@@ -608,6 +609,7 @@ class SetImage(show.ShowOne):
 
         info = {}
         info.update(image._info)
+        info['properties'] = utils.format_dict(info.get('properties', {}))
         return zip(*sorted(six.iteritems(info)))
 
 
@@ -636,4 +638,5 @@ class ShowImage(show.ShowOne):
 
         info = {}
         info.update(image._info)
+        info['properties'] = utils.format_dict(info.get('properties', {}))
         return zip(*sorted(six.iteritems(info)))
diff --git a/openstackclient/tests/image/v1/fakes.py b/openstackclient/tests/image/v1/fakes.py
index 972e6415..95a8a39c 100644
--- a/openstackclient/tests/image/v1/fakes.py
+++ b/openstackclient/tests/image/v1/fakes.py
@@ -30,7 +30,7 @@ image_properties = {
     'Beta': 'b',
     'Gamma': 'g',
 }
-image_properties_str = "{'Alpha': 'a', 'Beta': 'b', 'Gamma': 'g'}"
+image_properties_str = "Alpha='a', Beta='b', Gamma='g'"
 image_data = 'line 1\nline 2\n'
 
 IMAGE = {
@@ -47,7 +47,9 @@ IMAGE = {
 }
 
 IMAGE_columns = tuple(sorted(IMAGE))
-IMAGE_data = tuple((IMAGE[x] for x in sorted(IMAGE)))
+IMAGE_output = dict(IMAGE)
+IMAGE_output['properties'] = image_properties_str
+IMAGE_data = tuple((IMAGE_output[x] for x in sorted(IMAGE_output)))
 
 
 class FakeImagev1Client(object):