diff --git a/geoffrey/DatabaseInterface.py b/geoffrey/DatabaseInterface.py
index b3286bb..a55c77a 100644
--- a/geoffrey/DatabaseInterface.py
+++ b/geoffrey/DatabaseInterface.py
@@ -117,7 +117,7 @@ class DatabaseInterface:
         return player
 
     def find_player_by_mc_uuid(self, session, uuid):
-        expr = Player.id == uuid
+        expr = Player.mc_uuid == uuid
 
         try:
             player = self.database.query_by_filter(session, Player, expr)[0]
@@ -173,15 +173,6 @@ class DatabaseInterface:
         self.database.delete_entry(session, Location, expr)
 
 
-def check_similarity(a, b):
-    ratio = SequenceMatcher(None, a, b).ratio()
-
-    if (ratio > 0.6) or (a[0] == b[0]):
-        return True
-    else:
-        return False
-
-
 def list_to_string(loc_list, str_format='{}\n{}'):
     loc_string = ''
 
diff --git a/geoffrey/__init__.py b/geoffrey/__init__.py
index 3f6fab6..5909147 100644
--- a/geoffrey/__init__.py
+++ b/geoffrey/__init__.py
@@ -1 +1 @@
-__version__ = '1.0.3'
+__version__ = '1.1.0dev'
diff --git a/geoffrey/tests/test_geoffreyDatabase.py b/geoffrey/tests/test_geoffreyDatabase.py
index 44a3e6f..5a308c0 100644
--- a/geoffrey/tests/test_geoffreyDatabase.py
+++ b/geoffrey/tests/test_geoffreyDatabase.py
@@ -74,6 +74,11 @@ class TestGeoffreyDatabase(TestCase):
 
         self.assertRaises(DeleteEntryError, self.interface.database.delete_entry, self.session, Location, expr)
 
+    def test_add_player(self):
+        self.add_player()
+        self.assertRaises(PlayerInDBError, self.interface.add_player, self.session, 'BirbHD',
+                          discord_uuid='143072699567177728')
+
     def test_add_shop(self):
         owner = self.add_player()
         shop = self.add_shop(owner)
@@ -99,6 +104,21 @@ class TestGeoffreyDatabase(TestCase):
         tunnel2 = self.interface.find_tunnel_by_owner_name(self.session, 'BirbHD')[0]
         self.assertEqual(tunnel1, tunnel2)
 
+        self.assertRaises(EntryNameNotUniqueError, self.interface.add_tunnel, self.session, player, "South", 155, None)
+
+        loc = self.add_loc(player)
+
+        tunnel3 = self.interface.add_tunnel(self.session, player, "South", 155, 'test')
+
+        tunnel4 = self.interface.find_tunnel_by_owner_name(self.session, 'BirbHD')[0]
+        self.assertEqual(tunnel3, tunnel4)
+
+        self.assertRaises(LocationHasTunnelError, self.interface.add_tunnel, self.session, player, "South", 155,
+                          'test')
+
+        self.assertRaises(LocationLookUpError, self.interface.add_tunnel, self.session, player, "South", 155,
+                          'no u')
+
     def test_add_item(self):
         owner = self.add_player()
         self.add_shop(owner)
@@ -107,6 +127,24 @@ class TestGeoffreyDatabase(TestCase):
         shops = self.interface.find_shop_selling_item(self.session, 'dirt')
         self.assertGreater(len(shops), 0)
 
+        self.assertRaises(LocationLookUpError, self.interface.add_item, self.session, owner, 'no u', 'dirt', 1, 15)
+
+    def test_find_player_by_discord_uuid(self):
+        p1 = self.add_player()
+        p2 = self.interface.find_player_by_discord_uuid(self.session, 143072699567177728)
+
+        self.assertEquals(p1, p2)
+
+        self.assertRaises(PlayerNotFound, self.interface.find_player_by_discord_uuid, self.session, 143072698)
+
+    def test_find_player_by_mc_uuid(self):
+        p1 = self.add_player()
+        p2 = self.interface.find_player_by_mc_uuid(self.session, 'fe7e84132570458892032b69ff188bc3')
+
+        self.assertEquals(p1, p2)
+
+        self.assertRaises(PlayerNotFound, self.interface.find_player_by_discord_uuid, self.session, 143072698)
+
     def test_find_location_by_owner(self):
         owner = self.add_player()
         shop = self.add_shop(owner)