[verify ]Fix several py3 issues

1. switch \u2714 to :-)
   a. \u2714 can not be decoded on py3
   b. \u2714 can not shown rightly on Window as Linux

2. compatiable py3 and py2 for load_lists

Change-Id: I8ac7f5560b0c0d51bf744e1be6bf3768c978e5df

rally/api.py

@@ -1081,7 +1081,8 @@ class _Verification(APIGroup):
                     "There are no failed tests from verification (UUID=%s)."
                     % verification_uuid)
         else:
-            tests = tests.keys()
+            # py2 and py3
+            tests = list(tests.keys())
 
         deployment = (deployment_id if deployment_id
                       else verification.deployment_uuid)

rally/cli/commands/verify.py

@@ -43,6 +43,8 @@ LIST_VERIFICATIONS_HINT = ("HINT: You can list all verifications, executing "
 
 DEFAULT_REPORT_TYPES = ("HTML", "HTML-Static", "JSON", "JUnit-XML")
 
+ACTIVE = u":-)"
+
 
 class VerifyCommands(object):
     """Verify an OpenStack cloud via a verifier."""
@@ -175,7 +177,7 @@ class VerifyCommands(object):
             formatters = {
                 "Created at": lambda v: v["created_at"],
                 "Updated at": lambda v: v["updated_at"],
-                "Active": lambda v: u"\u2714" if v["uuid"] == cv else "",
+                "Active": lambda v: ACTIVE if v["uuid"] == cv else "",
             }
             cliutils.print_list(verifiers, fields, formatters=formatters,
                                 normalize_field_names=True, sortby_index=4)
@@ -202,8 +204,8 @@ class VerifyCommands(object):
         formatters = {
             "Created at": lambda v: v["created_at"].replace("T", " "),
             "Updated at": lambda v: v["updated_at"].replace("T", " "),
-            "Active": lambda v: u"\u2714"
-                                if v["uuid"] == used_verifier else None,
+            "Active": lambda v: (ACTIVE
+                                 if v["uuid"] == used_verifier else None),
             "Extra settings": lambda v: (json.dumps(v["extra_settings"],
                                                     indent=4)
                                          if v["extra_settings"] else None),

rally/verification/manager.py

@@ -360,7 +360,15 @@ class VerifierManager(plugin.Plugin):
             "'%s' verifiers don't support extensions." % self.get_name())
 
     def list_extensions(self):
-        """List all verifier extensions."""
+        """List all verifier extensions.
+
+        Every extension is a dict object which contains
+        name and entry_point keys. example:
+            {
+                "name": p.name,
+                "entry_point": p.entry_point_target
+            }
+        """
         return []
 
     def uninstall_extension(self, name):

tests/functional/utils.py

@@ -202,8 +202,8 @@ class Rally(object):
             return output
 
         except subprocess.CalledProcessError as e:
-            output = e.output
-            raise RallyCliError(cmd, e.returncode, e.output)
+            output = encodeutils.safe_decode(e.output)
+            raise RallyCliError(cmd, e.returncode, output)
         finally:
             if write_report:
                 if not report_path:

tests/unit/test_api.py

@@ -1955,7 +1955,7 @@ class VerificationAPITestCase(test.TestCase):
                                      concurrency=1)
         mock_start.assert_called_once_with(
             verifier_id="v_uuid", deployment_id="d_uuid",
-            load_list=tests.keys(), tags=None, concurrency=1)
+            load_list=list(tests.keys()), tags=None, concurrency=1)
 
     @mock.patch("rally.api._Verification.start")
     @mock.patch("rally.api.objects.Verification.create")