refactor local installer

JIRA: DOCTOR-100

Change-Id: I1e2c53f7a716156e35386d42c0df32a228a78fab
Signed-off-by: dongwenjuan <dong.wenjuan@zte.com.cn>

1 files changed, 33 insertions, 0 deletions

diff --git a/tests/utils.py b/tests/utils.py
new file mode 100644
index 00000000..c5d6c1c3
--- /dev/null
+++ b/tests/utils.py
@@ -0,0 +1,33 @@
+##############################################################################
+# Copyright (c) 2017 ZTE Corporation and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+import json
+import os
+
+
+def load_json_file(full_path):
+    """Loads JSON from file
+    :param target_filename:
+    :return:
+    """
+    if not os.path.isfile(full_path):
+        raise Exception('File(%s) does not exist' % full_path)
+
+    with open(full_path, 'r') as file:
+        return json.load(file)
+
+
+def write_json_file(full_path, data):
+    """write JSON from file
+    :param target_filename:
+    :return:
+    """
+
+    with open(full_path, 'w+') as file:
+        file.write(json.dumps(data))
+