Adapted autotest to to work with SQL directly instead of over HTTP SQL API

src/python/test/util.py

@@ -0,0 +1,31 @@
+import os
+import psycopg2
+
+DB_CONN = psycopg2.connect('postgres://{user}:{password}@{host}:{port}/{database}'.format(
+    user=os.environ.get('PGUSER', 'postgres'),
+    password=os.environ.get('PGPASSWORD', ''),
+    host=os.environ.get('PGHOST', 'localhost'),
+    port=os.environ.get('PGPORT', '5432'),
+    database=os.environ.get('PGDATABASE', 'postgres'),
+))
+CURSOR = DB_CONN.cursor()
+
+
+def query(q):
+    '''
+    Query the database.
+    '''
+    try:
+        CURSOR.execute(q)
+        return CURSOR
+    except:
+        DB_CONN.rollback()
+        raise
+
+
+def commit():
+    try:
+        DB_CONN.commit()
+    except:
+        DB_CONN.rollback()
+        raise