diff --git a/dev_requirements.txt b/dev_requirements.txt
index 58490257..57a335e7 100644
--- a/dev_requirements.txt
+++ b/dev_requirements.txt
@@ -1,4 +1,5 @@
 -r requirements.txt
-pytest
 ujson
 emoji
+pytest
+pytest-asyncio
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 00000000..fe936e18
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1 @@
+# pytest_plugins = "pytest_asyncio.plugin"
diff --git a/tests/dataset.py b/tests/dataset.py
index be9432df..0a991a4a 100644
--- a/tests/dataset.py
+++ b/tests/dataset.py
@@ -1,25 +1,75 @@
-UPDATE = {
-    "update_id": 128526,
-    "message": {
-        "message_id": 11223,
-        "from": {
-            "id": 12345678,
-            "is_bot": False,
-            "first_name": "FirstName",
-            "last_name": "LastName",
-            "username": "username",
-            "language_code": "ru"
-        },
-        "chat": {
-            "id": 12345678,
-            "first_name": "FirstName",
-            "last_name": "LastName",
-            "username": "username",
-            "type": "private"
-        },
-        "date": 1508709711,
-        "text": "Hi, world!"
-    }
+USER = {
+    "id": 12345678,
+    "is_bot": False,
+    "first_name": "FirstName",
+    "last_name": "LastName",
+    "username": "username",
+    "language_code": "ru-RU"
 }
 
-MESSAGE = UPDATE['message']
+CHAT = {
+    "id": 12345678,
+    "first_name": "FirstName",
+    "last_name": "LastName",
+    "username": "username",
+    "type": "private"
+}
+
+MESSAGE = {
+    "message_id": 11223,
+    "from": USER,
+    "chat": CHAT,
+    "date": 1508709711,
+    "text": "Hi, world!"
+}
+
+DOCUMENT = {
+    "file_name": "test.docx",
+    "mime_type": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
+    "file_id": "BQADAgADpgADy_JxS66XQTBRHFleAg",
+    "file_size": 21331
+}
+
+MESSAGE_WITH_DOCUMENT = {
+    "message_id": 12345,
+    "from": USER,
+    "chat": CHAT,
+    "date": 1508768012,
+    "document": DOCUMENT,
+    "caption": "doc description"
+}
+
+UPDATE = {
+    "update_id": 128526,
+    "message": MESSAGE
+}
+
+PHOTO = {
+    "file_id": "AgADBAADFak0G88YZAf8OAug7bHyS9x2ZxkABHVfpJywcloRAAGAAQABAg",
+    "file_size": 1101,
+    "width": 90,
+    "height": 51
+}
+
+ANIMATION = {
+    "file_name": "a9b0e0ca537aa344338f80978f0896b7.gif.mp4",
+    "mime_type": "video/mp4",
+    "thumb": PHOTO,
+    "file_id": "CgADBAAD4DUAAoceZAe2WiE9y0crrAI",
+    "file_size": 65837
+}
+
+GAME = {
+    "title": "Karate Kido",
+    "description": "No trees were harmed in the making of this game :)",
+    "photo": [PHOTO, PHOTO, PHOTO],
+    "animation": ANIMATION
+}
+
+MESSAGE_WITH_GAME = {
+    "message_id": 12345,
+    "from": USER,
+    "chat": CHAT,
+    "date": 1508824810,
+    "game": GAME
+}
diff --git a/tests/test_animation.py b/tests/test_animation.py
new file mode 100644
index 00000000..96b44174
--- /dev/null
+++ b/tests/test_animation.py
@@ -0,0 +1,39 @@
+from aiogram import types
+from .dataset import ANIMATION
+
+animation = types.Animation(**ANIMATION)
+
+
+def test_export():
+    exported = animation.to_python()
+    assert isinstance(exported, dict)
+    assert exported == ANIMATION
+
+
+def test_file_name():
+    assert isinstance(animation.file_name, str)
+    assert animation.file_name == ANIMATION['file_name']
+
+
+def test_mime_type():
+    assert isinstance(animation.mime_type, str)
+    assert animation.mime_type == ANIMATION['mime_type']
+
+
+def test_file_id():
+    assert isinstance(animation.file_id, str)
+    # assert hash(animation) == ANIMATION['file_id']
+    assert animation.file_id == ANIMATION['file_id']
+
+
+def test_file_size():
+    assert isinstance(animation.file_size, int)
+    assert animation.file_size == ANIMATION['file_size']
+
+
+def test_thumb():
+    assert isinstance(animation.thumb, types.PhotoSize)
+    assert animation.thumb.file_id == ANIMATION['thumb']['file_id']
+    assert animation.thumb.width == ANIMATION['thumb']['width']
+    assert animation.thumb.height == ANIMATION['thumb']['height']
+    assert animation.thumb.file_size == ANIMATION['thumb']['file_size']
diff --git a/tests/test_chat.py b/tests/test_chat.py
new file mode 100644
index 00000000..862e1604
--- /dev/null
+++ b/tests/test_chat.py
@@ -0,0 +1,48 @@
+from aiogram import types
+from .dataset import CHAT
+
+chat = types.Chat(**CHAT)
+
+
+def test_export():
+    exported = chat.to_python()
+    assert isinstance(exported, dict)
+    assert exported == CHAT
+
+
+def test_id():
+    assert isinstance(chat.id, int)
+    assert chat.id == CHAT['id']
+    assert hash(chat) == CHAT['id']
+
+
+def test_name():
+    assert isinstance(chat.first_name, str)
+    assert chat.first_name == CHAT['first_name']
+
+    assert isinstance(chat.last_name, str)
+    assert chat.last_name == CHAT['last_name']
+
+    assert isinstance(chat.username, str)
+    assert chat.username == CHAT['username']
+
+
+def test_type():
+    assert isinstance(chat.type, str)
+    assert chat.type == CHAT['type']
+
+
+def test_chat_types():
+    assert types.ChatType.PRIVATE == 'private'
+    assert types.ChatType.GROUP == 'group'
+    assert types.ChatType.SUPER_GROUP == 'supergroup'
+    assert types.ChatType.CHANNEL == 'channel'
+
+
+def test_chat_type_filters():
+    from . import test_message
+    assert types.ChatType.is_private(test_message.message)
+    assert not types.ChatType.is_group(test_message.message)
+    assert not types.ChatType.is_super_group(test_message.message)
+    assert not types.ChatType.is_group_or_super_group(test_message.message)
+    assert not types.ChatType.is_channel(test_message.message)
diff --git a/tests/test_document.py b/tests/test_document.py
new file mode 100644
index 00000000..64b53360
--- /dev/null
+++ b/tests/test_document.py
@@ -0,0 +1,35 @@
+from aiogram import types
+from .dataset import DOCUMENT
+
+document = types.Document(**DOCUMENT)
+
+
+def test_export():
+    exported = document.to_python()
+    assert isinstance(exported, dict)
+    assert exported == DOCUMENT
+
+
+def test_file_name():
+    assert isinstance(document.file_name, str)
+    assert document.file_name == DOCUMENT['file_name']
+
+
+def test_mime_type():
+    assert isinstance(document.mime_type, str)
+    assert document.mime_type == DOCUMENT['mime_type']
+
+
+def test_file_id():
+    assert isinstance(document.file_id, str)
+    # assert hash(document) == DOCUMENT['file_id']
+    assert document.file_id == DOCUMENT['file_id']
+
+
+def test_file_size():
+    assert isinstance(document.file_size, int)
+    assert document.file_size == DOCUMENT['file_size']
+
+
+def test_thumb():
+    assert document.thumb is None
diff --git a/tests/test_game.py b/tests/test_game.py
new file mode 100644
index 00000000..c81809f3
--- /dev/null
+++ b/tests/test_game.py
@@ -0,0 +1,29 @@
+from aiogram import types
+from .dataset import GAME
+
+game = types.Game(**GAME)
+
+def test_export():
+    exported = game.to_python()
+    assert isinstance(exported, dict)
+    assert exported == GAME
+
+
+def test_title():
+    assert isinstance(game.title, str)
+    assert game.title == GAME['title']
+
+
+def test_description():
+    assert isinstance(game.description, str)
+    assert game.description == GAME['description']
+
+
+def test_photo():
+    assert isinstance(game.photo, list)
+    assert len(game.photo) == len(GAME['photo'])
+    assert all(map(lambda t: isinstance(t, types.PhotoSize), game.photo))
+
+
+def test_animation():
+    assert isinstance(game.animation, types.Animation)
diff --git a/tests/test_message.py b/tests/test_message.py
index 9f7df6e4..8071207e 100644
--- a/tests/test_message.py
+++ b/tests/test_message.py
@@ -6,7 +6,14 @@ from .dataset import MESSAGE
 message = types.Message(**MESSAGE)
 
 
+def test_export():
+    exported_chat = message.to_python()
+    assert isinstance(exported_chat, dict)
+    assert exported_chat == MESSAGE
+
+
 def test_message_id():
+    assert hash(message) == MESSAGE['message_id']
     assert message.message_id == MESSAGE['message_id']
     assert message['message_id'] == MESSAGE['message_id']
 
diff --git a/tests/test_photo.py b/tests/test_photo.py
new file mode 100644
index 00000000..73d87fb7
--- /dev/null
+++ b/tests/test_photo.py
@@ -0,0 +1,27 @@
+from aiogram import types
+from .dataset import PHOTO
+
+photo = types.PhotoSize(**PHOTO)
+
+
+def test_export():
+    exported = photo.to_python()
+    assert isinstance(exported, dict)
+    assert exported == PHOTO
+
+
+def test_file_id():
+    assert isinstance(photo.file_id, str)
+    assert photo.file_id == PHOTO['file_id']
+
+
+def test_file_size():
+    assert isinstance(photo.file_size, int)
+    assert photo.file_size == PHOTO['file_size']
+
+
+def test_size():
+    assert isinstance(photo.width, int)
+    assert isinstance(photo.height, int)
+    assert photo.width == PHOTO['width']
+    assert photo.height == PHOTO['height']
diff --git a/tests/test_user.py b/tests/test_user.py
new file mode 100644
index 00000000..ae8413aa
--- /dev/null
+++ b/tests/test_user.py
@@ -0,0 +1,48 @@
+from babel import Locale
+
+from aiogram import types
+from .dataset import USER
+
+user = types.User(**USER)
+
+
+def test_export():
+    exported = user.to_python()
+    assert isinstance(exported, dict)
+    assert exported == USER
+
+
+def test_id():
+    assert isinstance(user.id, int)
+    assert user.id == USER['id']
+    assert hash(user) == USER['id']
+
+
+def test_bot():
+    assert isinstance(user.is_bot, bool)
+    assert user.is_bot == USER['is_bot']
+
+
+def test_name():
+    assert user.first_name == USER['first_name']
+    assert user.last_name == USER['last_name']
+    assert user.username == USER['username']
+
+
+def test_language_code():
+    assert user.language_code == USER['language_code']
+    assert user.locale == Locale.parse(USER['language_code'], sep='-')
+
+
+def test_full_name():
+    assert user.full_name == f"{USER['first_name']} {USER['last_name']}"
+
+
+def test_mention():
+    assert user.mention == f"@{USER['username']}"
+    assert user.get_mention('foo') == f"[foo](tg://user?id={USER['id']})"
+    assert user.get_mention('foo', as_html=True) == f"<a href=\"tg://user?id={USER['id']}\">foo</a>"
+
+
+def test_url():
+    assert user.url == f"tg://user?id={USER['id']}"