added file reader offset

tests/test_read_offset.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+import sys, os
+from time import sleep
+import tempfile
+sys.path.append(".")
+sys.path.append("src/")
+import uuid
+TEST_DIR = 'testdata/%s-%s' % (uuid.uuid4(), os.path.basename(__file__)) + '/'
+print("Test directory:", TEST_DIR)
+os.environ["ONIONR_HOME"] = TEST_DIR
+import unittest, json
+
+from utils import identifyhome, createdirs, readoffset
+from onionrsetup import setup_config
+createdirs.create_dirs()
+setup_config()
+
+class TestReadOffset(unittest.TestCase):
+    def test_read_whole(self):
+        temp = tempfile.mkstemp()[1]
+        f = open(temp, 'wb')
+        data = b"test1\ntest2\ntest3\test4"
+        f.write(data)
+        f.close()
+        self.assertEqual(readoffset.read_from_offset(temp).data, data)
+        os.remove(temp)
+
+
+unittest.main()