Revert "Remove unused module"

This reverts commit 9754f4e.
Removing it was a mistake.

Author: konradkonrad

ethereum/tests/utils.py

@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# pyethereum is free software: you can redistribute it and/or modify it
+# under the terms of the The MIT License
+
+
+"""Utilities used by more than one test."""
+
+
+import json
+import os
+import tempfile
+from ethereum.db import DB as DB
+from ethereum.config import Env
+__TESTDATADIR = "../tests"
+
+tempdir = tempfile.mktemp()
+
+
+def load_test_data(fname):
+    return json.loads(open(os.path.join(__TESTDATADIR, fname)).read())
+
+
+def new_db():
+    return DB()
+
+
+def new_env():
+    return Env(new_db())