From 6d2a7469fcdb9259396f87d49271d26f4b1d8914 Mon Sep 17 00:00:00 2001
From: Hellow <Lars.Noack@outlook.de>
Date: Fri, 24 Mar 2023 19:07:37 +0100
Subject: [PATCH] modified diagram

---
 README.md                 | 18 +++++++++---------
 src/tests/test_objects.py | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+), 9 deletions(-)

diff --git a/README.md b/README.md
index cdd7fee..a82d5ff 100644
--- a/README.md
+++ b/README.md
@@ -156,21 +156,21 @@ Source {
 
 }
 
-Source }o--|| Song : from
-Source }o--|| Lyrics : from
-Source }o--|| Album : from
-Source }o--|| Artist : from
-Source }o--|| Label : from
+Source }o--|| Song : ""
+Source }o--|| Lyrics : ""
+Source }o--|| Album : ""
+Source }o--|| Artist : ""
+Source }o--|| Label : ""
 
 Song }o--o{ Album : AlbumSong
 Album }o--o{ Artist : ArtistAlbum
-Song }o--o{ Artist : features
+Song }o--o{ Artist : "ArtistSong (features)"
 
 Label }o--o{ Album : LabelAlbum
 Label }o--o{ Artist : LabelSong
 
-Song ||--o{ Lyrics : contains
-Song ||--o{ Target : points
+Song ||--o{ Lyrics : ""
+Song ||--o{ Target : ""
 ```
 
 Ok now this **WILL** look intimidating, thus I break it down quickly.  
@@ -216,7 +216,7 @@ Label {
 
 Song }o--o{ Album : AlbumSong
 Album }o--o{ Artist : ArtistAlbum
-Song }o--o{ Artist : features
+Song }o--o{ Artist : "ArtistSong (features)"
 
 Label }o--o{ Album : LabelAlbum
 Label }o--o{ Artist : LabelSong
diff --git a/src/tests/test_objects.py b/src/tests/test_objects.py
index 4f7ac7f..8e1a432 100644
--- a/src/tests/test_objects.py
+++ b/src/tests/test_objects.py
@@ -169,6 +169,42 @@ class TestCollection(unittest.TestCase):
             self.assertIn(song.unified_title, self.unified_titels)
 
 
+class TestCollectionAppending(unittest.TestCase):
+    def setUp(self):
+        self.song_list: objects.song = [
+            objects.Song(title="hasskrank"),
+            objects.Song(title="HaSSkrank"),
+            objects.Song(title="Suicideseason", isrc="uniqueID"),
+            objects.Song(title="same isrc different title", isrc="uniqueID")
+        ]
+        self.unified_titels = set(song.unified_title for song in self.song_list)
+
+    def test_appending(self):
+        collection = objects.Collection(
+            element_type=objects.Song,
+            data=self.song_list
+        )
+
+        res = collection.append(self.song_list[0])
+        self.assertEqual(res.was_in_collection, False)
+        self.assertEqual(res.current_element, self.song_list[0])
+
+        res = collection.append(self.song_list[1])
+        self.assertEqual(res.was_in_collection, True)
+        self.assertEqual(res.current_element, self.song_list[0])
+
+        res = collection.append(self.song_list[2])
+        self.assertEqual(res.was_in_collection, False)
+        self.assertEqual(res.current_element, self.song_list[2])
+
+        res = collection.append(self.song_list[3])
+        self.assertEqual(res.was_in_collection, True)
+        self.assertEqual(res.current_element, self.song_list[2])
+
+
+
+
+
 
 
 class TestLyrics(unittest.TestCase):