add files

test/database_test.py

@@ -0,0 +1,22 @@
+from src.backend.database import Database
+import pickle
+def test_connection():
+    db=Database()
+    assert db.database is not None
+    
+def test_insert():
+    db=Database()
+    assert db.database is not None
+    db.create_user("test_account", "test", "test", "test")
+    curr_users = db.get_users()
+    curr_users = [x[2] for x in curr_users]
+    assert "test_account" in curr_users
+    db.delete_user("test_account")
+    curr_users = db.get_users()
+    curr_users = [x[2] for x in curr_users]
+    assert "test_account" not in curr_users
+    
+def test_pickle_bookdata():
+    db=Database()
+    assert db.database is not None
+