Add children media class (#39902)

Co-authored-by: Paulus Schoutsen <balloob@gmail.com>

homeassistant/components/kodi/browse_media.py

@@ -29,8 +29,15 @@ PLAYABLE_MEDIA_TYPES = [
     MEDIA_TYPE_TRACK,
 ]
 
-CONTENT_TYPE_MEDIA_CLASS = {
+CONTAINER_TYPES_SPECIFIC_MEDIA_CLASS = {
-    "library_music": MEDIA_CLASS_MUSIC,
+    MEDIA_TYPE_ALBUM: MEDIA_CLASS_ALBUM,
+    MEDIA_TYPE_ARTIST: MEDIA_CLASS_ARTIST,
+    MEDIA_TYPE_PLAYLIST: MEDIA_CLASS_PLAYLIST,
+    MEDIA_TYPE_SEASON: MEDIA_CLASS_SEASON,
+    MEDIA_TYPE_TVSHOW: MEDIA_CLASS_TV_SHOW,
+}
+
+CHILD_TYPE_MEDIA_CLASS = {
     MEDIA_TYPE_SEASON: MEDIA_CLASS_SEASON,
     MEDIA_TYPE_ALBUM: MEDIA_CLASS_ALBUM,
     MEDIA_TYPE_ARTIST: MEDIA_CLASS_ARTIST,
@@ -151,8 +158,10 @@ async def build_item_response(media_library, payload):
         except UnknownMediaType:
             pass
 
-    return BrowseMedia(
+    response = BrowseMedia(
-        media_class=CONTENT_TYPE_MEDIA_CLASS[search_type],
+        media_class=CONTAINER_TYPES_SPECIFIC_MEDIA_CLASS.get(
+            search_type, MEDIA_CLASS_DIRECTORY
+        ),
         media_content_id=search_id,
         media_content_type=search_type,
         title=title,
@@ -162,6 +171,13 @@ async def build_item_response(media_library, payload):
         thumbnail=thumbnail,
     )
 
+    if search_type == "library_music":
+        response.children_media_class = MEDIA_CLASS_MUSIC
+    else:
+        response.calculate_children_class()
+
+    return response
+
 
 def item_payload(item, media_library):
     """
@@ -170,11 +186,12 @@ def item_payload(item, media_library):
     Used by async_browse_media.
     """
     title = item["label"]
-
     thumbnail = item.get("thumbnail")
     if thumbnail:
         thumbnail = media_library.thumbnail_url(thumbnail)
 
+    media_class = None
+
     if "songid" in item:
         media_content_type = MEDIA_TYPE_TRACK
         media_content_id = f"{item['songid']}"
@@ -213,16 +230,18 @@ def item_payload(item, media_library):
     else:
         # this case is for the top folder of each type
         # possible content types: album, artist, movie, library_music, tvshow
+        media_class = MEDIA_CLASS_DIRECTORY
         media_content_type = item["type"]
         media_content_id = ""
         can_play = False
         can_expand = True
 
-    try:
+    if media_class is None:
-        media_class = CONTENT_TYPE_MEDIA_CLASS[media_content_type]
+        try:
-    except KeyError as err:
+            media_class = CHILD_TYPE_MEDIA_CLASS[media_content_type]
-        _LOGGER.debug("Unknown media type received: %s", media_content_type)
+        except KeyError as err:
-        raise UnknownMediaType from err
+            _LOGGER.debug("Unknown media type received: %s", media_content_type)
+            raise UnknownMediaType from err
 
     return BrowseMedia(
         title=title,

homeassistant/components/media_player/__init__.py

@@ -85,6 +85,7 @@ from .const import (
     ATTR_SOUND_MODE,
     ATTR_SOUND_MODE_LIST,
     DOMAIN,
+    MEDIA_CLASS_DIRECTORY,
     SERVICE_CLEAR_PLAYLIST,
     SERVICE_PLAY_MEDIA,
     SERVICE_SELECT_SOUND_MODE,
@@ -816,24 +817,10 @@ class MediaPlayerEntity(Entity):
         media_content_type: Optional[str] = None,
         media_content_id: Optional[str] = None,
     ) -> "BrowseMedia":
-        """
+        """Return a BrowseMedia instance.
-        Return a payload for the "media_player/browse_media" websocket command.
 
-        Payload should follow this format:
+        The BrowseMedia instance will be used by the
-            {
+        "media_player/browse_media" websocket command.
-                "title": str - Title of the item
-                "media_class": str - Media class
-                "media_content_type": str - see below
-                "media_content_id": str - see below
-                  - Can be passed back in to browse further
-                  - Can be used as-is with media_player.play_media service
-                "can_play": bool - If item is playable
-                "can_expand": bool - If item contains other media
-                "thumbnail": str (Optional) - URL to image thumbnail for item
-                "children": list (Optional) - [{<item_with_keys_above>}, ...]
-            }
-
-        Note: Children should omit the children key.
         """
         raise NotImplementedError()
 
@@ -1054,6 +1041,7 @@ class BrowseMedia:
         can_play: bool,
         can_expand: bool,
         children: Optional[List["BrowseMedia"]] = None,
+        children_media_class: Optional[str] = None,
         thumbnail: Optional[str] = None,
     ):
         """Initialize browse media item."""
@@ -1064,10 +1052,14 @@ class BrowseMedia:
         self.can_play = can_play
         self.can_expand = can_expand
         self.children = children
+        self.children_media_class = children_media_class
         self.thumbnail = thumbnail
 
     def as_dict(self, *, parent: bool = True) -> dict:
         """Convert Media class to browse media dictionary."""
+        if self.children_media_class is None:
+            self.calculate_children_class()
+
         response = {
             "title": self.title,
             "media_class": self.media_class,
@@ -1075,6 +1067,7 @@ class BrowseMedia:
             "media_content_id": self.media_content_id,
             "can_play": self.can_play,
             "can_expand": self.can_expand,
+            "children_media_class": self.children_media_class,
             "thumbnail": self.thumbnail,
         }
 
@@ -1089,3 +1082,14 @@ class BrowseMedia:
             response["children"] = []
 
         return response
+
+    def calculate_children_class(self) -> None:
+        """Count the children media classes and calculate the correct class."""
+        if self.children is None or len(self.children) == 0:
+            return
+
+        self.children_media_class = MEDIA_CLASS_DIRECTORY
+
+        proposed_class = self.children[0].media_class
+        if all(child.media_class == proposed_class for child in self.children):
+            self.children_media_class = proposed_class

homeassistant/components/media_source/models.py

@@ -6,6 +6,7 @@ from typing import List, Optional, Tuple
 from homeassistant.components.media_player import BrowseMedia
 from homeassistant.components.media_player.const import (
     MEDIA_CLASS_CHANNEL,
+    MEDIA_CLASS_DIRECTORY,
     MEDIA_TYPE_CHANNEL,
     MEDIA_TYPE_CHANNELS,
 )
@@ -53,11 +54,12 @@ class MediaSourceItem:
             base = BrowseMediaSource(
                 domain=None,
                 identifier=None,
-                media_class=MEDIA_CLASS_CHANNEL,
+                media_class=MEDIA_CLASS_DIRECTORY,
                 media_content_type=MEDIA_TYPE_CHANNELS,
                 title="Media Sources",
                 can_play=False,
                 can_expand=True,
+                children_media_class=MEDIA_CLASS_CHANNEL,
             )
             base.children = [
                 BrowseMediaSource(

homeassistant/components/netatmo/media_source.py

@@ -5,6 +5,7 @@ import re
 from typing import Optional, Tuple
 
 from homeassistant.components.media_player.const import (
+    MEDIA_CLASS_DIRECTORY,
     MEDIA_CLASS_VIDEO,
     MEDIA_TYPE_VIDEO,
 )
@@ -91,10 +92,12 @@ class NetatmoSource(MediaSource):
         else:
             path = f"{source}/{camera_id}"
 
+        media_class = MEDIA_CLASS_DIRECTORY if event_id is None else MEDIA_CLASS_VIDEO
+
         media = BrowseMediaSource(
             domain=DOMAIN,
             identifier=path,
-            media_class=MEDIA_CLASS_VIDEO,
+            media_class=media_class,
             media_content_type=MEDIA_TYPE_VIDEO,
             title=title,
             can_play=bool(

homeassistant/components/philips_js/media_player.py

@@ -12,6 +12,7 @@ from homeassistant.components.media_player import (
 )
 from homeassistant.components.media_player.const import (
     MEDIA_CLASS_CHANNEL,
+    MEDIA_CLASS_DIRECTORY,
     MEDIA_TYPE_CHANNEL,
     MEDIA_TYPE_CHANNELS,
     SUPPORT_BROWSE_MEDIA,
@@ -289,7 +290,7 @@ class PhilipsTVMediaPlayer(MediaPlayerEntity):
 
         return BrowseMedia(
             title="Channels",
-            media_class=MEDIA_CLASS_CHANNEL,
+            media_class=MEDIA_CLASS_DIRECTORY,
             media_content_id="",
             media_content_type=MEDIA_TYPE_CHANNELS,
             can_play=False,

homeassistant/components/plex/media_browser.py

@@ -26,7 +26,7 @@ class UnknownMediaType(BrowseError):
 EXPANDABLES = ["album", "artist", "playlist", "season", "show"]
 PLAYLISTS_BROWSE_PAYLOAD = {
     "title": "Playlists",
-    "media_class": MEDIA_CLASS_PLAYLIST,
+    "media_class": MEDIA_CLASS_DIRECTORY,
     "media_content_id": "all",
     "media_content_type": "playlists",
     "can_play": False,
@@ -94,10 +94,21 @@ def browse_media(
     if special_folder:
         if media_content_type == "server":
             library_or_section = plex_server.library
+            children_media_class = MEDIA_CLASS_DIRECTORY
             title = plex_server.friendly_name
         elif media_content_type == "library":
             library_or_section = plex_server.library.sectionByID(media_content_id)
             title = library_or_section.title
+            try:
+                children_media_class = ITEM_TYPE_MEDIA_CLASS[library_or_section.TYPE]
+            except KeyError as err:
+                raise BrowseError(
+                    f"Media not found: {media_content_type} / {media_content_id}"
+                ) from err
+        else:
+            raise BrowseError(
+                f"Media not found: {media_content_type} / {media_content_id}"
+            )
 
         payload = {
             "title": title,
@@ -107,6 +118,7 @@ def browse_media(
             "can_play": False,
             "can_expand": True,
             "children": [],
+            "children_media_class": children_media_class,
         }
 
         method = SPECIAL_METHODS[special_folder]
@@ -116,13 +128,20 @@ def browse_media(
                 payload["children"].append(item_payload(item))
             except UnknownMediaType:
                 continue
+
         return BrowseMedia(**payload)
 
-    if media_content_type in ["server", None]:
+    try:
-        return server_payload(plex_server)
+        if media_content_type in ["server", None]:
+            return server_payload(plex_server)
 
-    if media_content_type == "library":
+        if media_content_type == "library":
-        return library_payload(plex_server, media_content_id)
+            return library_payload(plex_server, media_content_id)
+
+    except UnknownMediaType as err:
+        raise BrowseError(
+            f"Media not found: {media_content_type} / {media_content_id}"
+        ) from err
 
     if media_content_type == "playlists":
         return playlists_payload(plex_server)
@@ -160,6 +179,11 @@ def item_payload(item):
 
 def library_section_payload(section):
     """Create response payload for a single library section."""
+    try:
+        children_media_class = ITEM_TYPE_MEDIA_CLASS[section.TYPE]
+    except KeyError as err:
+        _LOGGER.debug("Unknown type received: %s", section.TYPE)
+        raise UnknownMediaType from err
     return BrowseMedia(
         title=section.title,
         media_class=MEDIA_CLASS_DIRECTORY,
@@ -167,6 +191,7 @@ def library_section_payload(section):
         media_content_type="library",
         can_play=False,
         can_expand=True,
+        children_media_class=children_media_class,
     )
 
 
@@ -194,6 +219,7 @@ def server_payload(plex_server):
         can_expand=True,
     )
     server_info.children = []
+    server_info.children_media_class = MEDIA_CLASS_DIRECTORY
     server_info.children.append(special_library_payload(server_info, "On Deck"))
     server_info.children.append(special_library_payload(server_info, "Recently Added"))
     for library in plex_server.library.sections():
@@ -229,4 +255,6 @@ def playlists_payload(plex_server):
             playlists_info["children"].append(item_payload(playlist))
         except UnknownMediaType:
             continue
-    return BrowseMedia(**playlists_info)
+    response = BrowseMedia(**playlists_info)
+    response.children_media_class = MEDIA_CLASS_PLAYLIST
+    return response

homeassistant/components/roku/browse_media.py

@@ -13,9 +13,9 @@ from homeassistant.components.media_player.const import (
 
 CONTENT_TYPE_MEDIA_CLASS = {
     MEDIA_TYPE_APP: MEDIA_CLASS_APP,
-    MEDIA_TYPE_APPS: MEDIA_CLASS_APP,
+    MEDIA_TYPE_APPS: MEDIA_CLASS_DIRECTORY,
     MEDIA_TYPE_CHANNEL: MEDIA_CLASS_CHANNEL,
-    MEDIA_TYPE_CHANNELS: MEDIA_CLASS_CHANNEL,
+    MEDIA_TYPE_CHANNELS: MEDIA_CLASS_DIRECTORY,
 }
 
 PLAYABLE_MEDIA_TYPES = [
@@ -59,7 +59,7 @@ def build_item_response(coordinator, payload):
         return None
 
     return BrowseMedia(
-        media_class=CONTENT_TYPE_MEDIA_CLASS[search_type],
+        media_class=MEDIA_CLASS_DIRECTORY,
         media_content_id=search_id,
         media_content_type=search_type,
         title=title,
@@ -139,4 +139,16 @@ def library_payload(coordinator):
             )
         )
 
+    if all(
+        child.media_content_type == MEDIA_TYPE_APPS for child in library_info.children
+    ):
+        library_info.children_media_class = MEDIA_CLASS_APP
+    elif all(
+        child.media_content_type == MEDIA_TYPE_CHANNELS
+        for child in library_info.children
+    ):
+        library_info.children_media_class = MEDIA_CLASS_CHANNEL
+    else:
+        library_info.children_media_class = MEDIA_CLASS_DIRECTORY
+
     return library_info

homeassistant/components/sonos/media_player.py

@@ -222,6 +222,10 @@ ATTR_STATUS_LIGHT = "status_light"
 UNAVAILABLE_VALUES = {"", "NOT_IMPLEMENTED", None}
 
 
+class UnknownMediaType(BrowseError):
+    """Unknown media type."""
+
+
 class SonosData:
     """Storage class for platform global data."""
 
@@ -1487,7 +1491,20 @@ def build_item_response(media_library, payload):
         except IndexError:
             title = LIBRARY_TITLES_MAPPING[payload["idstring"]]
 
-    media_class = SONOS_TO_MEDIA_CLASSES[MEDIA_TYPES_TO_SONOS[payload["search_type"]]]
+    try:
+        media_class = SONOS_TO_MEDIA_CLASSES[
+            MEDIA_TYPES_TO_SONOS[payload["search_type"]]
+        ]
+    except KeyError:
+        _LOGGER.debug("Unknown media type received %s", payload["search_type"])
+        return None
+
+    children = []
+    for item in media:
+        try:
+            children.append(item_payload(item))
+        except UnknownMediaType:
+            pass
 
     return BrowseMedia(
         title=title,
@@ -1495,7 +1512,7 @@ def build_item_response(media_library, payload):
         media_class=media_class,
         media_content_id=payload["idstring"],
         media_content_type=payload["search_type"],
-        children=[item_payload(item) for item in media],
+        children=children,
         can_play=can_play(payload["search_type"]),
         can_expand=can_expand(payload["search_type"]),
     )
@@ -1507,12 +1524,18 @@ def item_payload(item):
 
     Used by async_browse_media.
     """
+    media_type = get_media_type(item)
+    try:
+        media_class = SONOS_TO_MEDIA_CLASSES[media_type]
+    except KeyError as err:
+        _LOGGER.debug("Unknown media type received %s", media_type)
+        raise UnknownMediaType from err
     return BrowseMedia(
         title=item.title,
         thumbnail=getattr(item, "album_art_uri", None),
-        media_class=SONOS_TO_MEDIA_CLASSES[get_media_type(item)],
+        media_class=media_class,
         media_content_id=get_content_id(item),
-        media_content_type=SONOS_TO_MEDIA_TYPES[get_media_type(item)],
+        media_content_type=SONOS_TO_MEDIA_TYPES[media_type],
         can_play=can_play(item.item_class),
         can_expand=can_expand(item),
     )
@@ -1524,6 +1547,13 @@ def library_payload(media_library):
 
     Used by async_browse_media.
     """
+    children = []
+    for item in media_library.browse():
+        try:
+            children.append(item_payload(item))
+        except UnknownMediaType:
+            pass
+
     return BrowseMedia(
         title="Music Library",
         media_class=MEDIA_CLASS_DIRECTORY,
@@ -1531,7 +1561,7 @@ def library_payload(media_library):
         media_content_type="library",
         can_play=False,
         can_expand=True,
-        children=[item_payload(item) for item in media_library.browse()],
+        children=children,
     )
 
 

homeassistant/components/spotify/media_player.py

@@ -105,18 +105,18 @@ LIBRARY_MAP = {
 }
 
 CONTENT_TYPE_MEDIA_CLASS = {
-    "current_user_playlists": MEDIA_CLASS_PLAYLIST,
+    "current_user_playlists": MEDIA_CLASS_DIRECTORY,
-    "current_user_followed_artists": MEDIA_CLASS_ARTIST,
+    "current_user_followed_artists": MEDIA_CLASS_DIRECTORY,
-    "current_user_saved_albums": MEDIA_CLASS_ALBUM,
+    "current_user_saved_albums": MEDIA_CLASS_DIRECTORY,
-    "current_user_saved_tracks": MEDIA_CLASS_TRACK,
+    "current_user_saved_tracks": MEDIA_CLASS_DIRECTORY,
-    "current_user_saved_shows": MEDIA_CLASS_PODCAST,
+    "current_user_saved_shows": MEDIA_CLASS_DIRECTORY,
-    "current_user_recently_played": MEDIA_CLASS_TRACK,
+    "current_user_recently_played": MEDIA_CLASS_DIRECTORY,
-    "current_user_top_artists": MEDIA_CLASS_ARTIST,
+    "current_user_top_artists": MEDIA_CLASS_DIRECTORY,
-    "current_user_top_tracks": MEDIA_CLASS_TRACK,
+    "current_user_top_tracks": MEDIA_CLASS_DIRECTORY,
-    "featured_playlists": MEDIA_CLASS_PLAYLIST,
+    "featured_playlists": MEDIA_CLASS_DIRECTORY,
-    "categories": MEDIA_CLASS_GENRE,
+    "categories": MEDIA_CLASS_DIRECTORY,
-    "category_playlists": MEDIA_CLASS_PLAYLIST,
+    "category_playlists": MEDIA_CLASS_DIRECTORY,
-    "new_releases": MEDIA_CLASS_ALBUM,
+    "new_releases": MEDIA_CLASS_DIRECTORY,
     MEDIA_TYPE_PLAYLIST: MEDIA_CLASS_PLAYLIST,
     MEDIA_TYPE_ALBUM: MEDIA_CLASS_ALBUM,
     MEDIA_TYPE_ARTIST: MEDIA_CLASS_ARTIST,
@@ -567,6 +567,7 @@ def build_item_response(spotify, user, payload):
                     can_expand=True,
                 )
             )
+        media_item.children_media_class = MEDIA_CLASS_GENRE
         return media_item
 
     if title is None:
@@ -575,7 +576,7 @@ def build_item_response(spotify, user, payload):
         else:
             title = LIBRARY_MAP.get(payload["media_content_id"])
 
-    response = {
+    params = {
         "title": title,
         "media_class": media_class,
         "media_content_id": media_content_id,
@@ -586,16 +587,16 @@ def build_item_response(spotify, user, payload):
     }
     for item in items:
         try:
-            response["children"].append(item_payload(item))
+            params["children"].append(item_payload(item))
         except (MissingMediaInformation, UnknownMediaType):
             continue
 
     if "images" in media:
-        response["thumbnail"] = fetch_image_url(media)
+        params["thumbnail"] = fetch_image_url(media)
     elif image:
-        response["thumbnail"] = image
+        params["thumbnail"] = image
 
-    return BrowseMedia(**response)
+    return BrowseMedia(**params)
 
 
 def item_payload(item):
@@ -624,17 +625,13 @@ def item_payload(item):
 
     payload = {
         "title": item.get("name"),
+        "media_class": media_class,
         "media_content_id": media_id,
         "media_content_type": media_type,
         "can_play": media_type in PLAYABLE_MEDIA_TYPES,
         "can_expand": can_expand,
     }
 
-    payload = {
-        **payload,
-        "media_class": media_class,
-    }
-
     if "images" in item:
         payload["thumbnail"] = fetch_image_url(item)
     elif MEDIA_TYPE_ALBUM in item:
@@ -665,7 +662,9 @@ def library_payload():
                 {"name": item["name"], "type": item["type"], "uri": item["type"]}
             )
         )
-    return BrowseMedia(**library_info)
+    response = BrowseMedia(**library_info)
+    response.children_media_class = MEDIA_CLASS_DIRECTORY
+    return response
 
 
 def fetch_image_url(item, key="images"):

tests/components/media_source/test_models.py

@@ -17,6 +17,7 @@ async def test_browse_media_as_dict():
         title="media/",
         can_play=False,
         can_expand=True,
+        children_media_class=MEDIA_CLASS_MUSIC,
     )
     base.children = [
         models.BrowseMediaSource(
@@ -37,6 +38,7 @@ async def test_browse_media_as_dict():
     assert item["media_content_id"] == f"{const.URI_SCHEME}{const.DOMAIN}/media"
     assert not item["can_play"]
     assert item["can_expand"]
+    assert item["children_media_class"] == MEDIA_CLASS_MUSIC
     assert len(item["children"]) == 1
     assert item["children"][0]["title"] == "test.mp3"
     assert item["children"][0]["media_class"] == MEDIA_CLASS_MUSIC
@@ -62,6 +64,7 @@ async def test_browse_media_parent_no_children():
     assert not item["can_play"]
     assert item["can_expand"]
     assert len(item["children"]) == 0
+    assert item["children_media_class"] is None
 
 
 async def test_media_source_default_name():

tests/components/plex/mock_classes.py

@@ -409,6 +409,11 @@ class MockPlexLibrarySection:
         if self.title == "Photos":
             return "photo"
 
+    @property
+    def TYPE(self):
+        """Return the library type."""
+        return self.type
+
     @property
     def key(self):
         """Mock the key identifier property."""

tests/components/roku/test_media_player.py

@@ -16,6 +16,9 @@ from homeassistant.components.media_player.const import (
     ATTR_MEDIA_TITLE,
     ATTR_MEDIA_VOLUME_MUTED,
     DOMAIN as MP_DOMAIN,
+    MEDIA_CLASS_APP,
+    MEDIA_CLASS_CHANNEL,
+    MEDIA_CLASS_DIRECTORY,
     MEDIA_TYPE_APP,
     MEDIA_TYPE_APPS,
     MEDIA_TYPE_CHANNEL,
@@ -499,6 +502,7 @@ async def test_media_browse(hass, aioclient_mock, hass_ws_client):
 
     assert msg["result"]
     assert msg["result"]["title"] == "Media Library"
+    assert msg["result"]["media_class"] == MEDIA_CLASS_DIRECTORY
     assert msg["result"]["media_content_type"] == "library"
     assert msg["result"]["can_expand"]
     assert not msg["result"]["can_play"]
@@ -523,10 +527,12 @@ async def test_media_browse(hass, aioclient_mock, hass_ws_client):
 
     assert msg["result"]
     assert msg["result"]["title"] == "Apps"
+    assert msg["result"]["media_class"] == MEDIA_CLASS_DIRECTORY
     assert msg["result"]["media_content_type"] == MEDIA_TYPE_APPS
     assert msg["result"]["can_expand"]
     assert not msg["result"]["can_play"]
     assert len(msg["result"]["children"]) == 11
+    assert msg["result"]["children_media_class"] == MEDIA_CLASS_APP
 
     assert msg["result"]["children"][0]["title"] == "Satellite TV"
     assert msg["result"]["children"][0]["media_content_type"] == MEDIA_TYPE_APP
@@ -565,10 +571,12 @@ async def test_media_browse(hass, aioclient_mock, hass_ws_client):
 
     assert msg["result"]
     assert msg["result"]["title"] == "Channels"
+    assert msg["result"]["media_class"] == MEDIA_CLASS_DIRECTORY
     assert msg["result"]["media_content_type"] == MEDIA_TYPE_CHANNELS
     assert msg["result"]["can_expand"]
     assert not msg["result"]["can_play"]
     assert len(msg["result"]["children"]) == 2
+    assert msg["result"]["children_media_class"] == MEDIA_CLASS_CHANNEL
 
     assert msg["result"]["children"][0]["title"] == "WhatsOn"
     assert msg["result"]["children"][0]["media_content_type"] == MEDIA_TYPE_CHANNEL