recreate DB connection

(cherry picked from commit 5593e28)

_development/helpers.py

@@ -4,6 +4,9 @@ import pytest
 import os
 import sys
 
+from sqlalchemy import MetaData, create_engine
+from sqlalchemy.orm import sessionmaker
+
 script_dir = os.path.dirname(os.path.abspath(__file__))
 # Add root folder to python paths
 sys.path.append(os.path.realpath(os.path.join(script_dir, '..', '..')))
@@ -27,6 +30,17 @@ def DBInMemory():
     import eos
     import eos.db
 
+    # Replace the existing DB connection with our own. For some reason on Linux, it ignores what we set above. :(
+    if callable('sqlite:///:memory:'):
+        eos.db.saveddata_engine = create_engine(creator='sqlite:///:memory:', echo=eos.config.debug)
+    else:
+        eos.db.saveddata_engine = create_engine('sqlite:///:memory:', echo=eos.config.debug)
+
+    eos.db.saveddata_meta = MetaData()
+    eos.db.saveddata_meta.bind = eos.db.saveddata_engine
+    eos.db.saveddata_session = sessionmaker(bind=eos.db.saveddata_engine, autoflush=False, expire_on_commit=False)()
+    eos.db.saveddata_meta.create_all()
+
     # Output debug info to help us troubleshoot Travis
     print(eos.db.saveddata_engine)
     print(eos.db.gamedata_engine)