Sort tags in get_note / update_note

Had this as a TODO in simplenote.vim:

https://github.com/mrtazz/simplenote.vim/blob/29d52cc5a15af2b3dd357ab5610148af0e350152/autoload/SimplenoteUtilities.py#L728

I.e. Needed to move the sorting to simplenote.py

I don't think there is a problem in sorting in update as well as get.
Added a test, but since the update is also getting sorted the test is
pretty much checking both at the same time.

simplenote/simplenote.py

@@ -311,11 +311,16 @@ def __encode(self, note):
             else:
                 note["content"] = html.unescape(note["content"])
 
+        # Sort tags
+        # For early versions of notes, tags not always available
+        if "tags" in note:
+            note["tags"] = sorted(note["tags"])
+
         if sys.version_info < (3, 0):
             if "content" in note:
                 # use UTF-8 encoding
                 note["content"] = note["content"].encode('utf-8')
-                # For early versions of notes, tags not always available
+            # For early versions of notes, tags not always available
             if "tags" in note:
                 note["tags"] = [t.encode('utf-8') for t in note["tags"]]
         return note

tests/test_simplenote.py

@@ -119,6 +119,13 @@ def test_simplenote_add_note_object(self):
             if status == 0:
                 self.assertEqual("new note", note["content"])
 
+    def test_simplenote_tags_sorted(self):
+        res, status = self.simplenote_instance.add_note({"content": "A note with tags in any order.", "tags": ["cat", "dog", "ant"]})
+        if status == 0:
+            note, status = self.simplenote_instance.get_note(res["key"])
+            if status == 0:
+                self.assertEqual(["ant", "cat", "dog"], note["tags"])
+
     def test_simplenote_add_note_content(self):
         res, status = self.simplenote_instance.add_note("new note")
         if status == 0: