Resolves #553, Resolves #546 - bug fixes with unit tests

Signed-off-by: Daniel Nephin <dnephin@gmail.com>

tests/unit/progress_stream_test.py

@@ -0,0 +1,20 @@
+from __future__ import unicode_literals
+from __future__ import absolute_import
+from tests import unittest
+
+import mock
+from six import StringIO
+
+from fig import progress_stream 
+
+
+class ProgressStreamTestCase(unittest.TestCase):
+
+    def test_stream_output(self):
+        output = [
+            '{"status": "Downloading", "progressDetail": {"current": '
+            '31019763, "start": 1413653874, "total": 62763875}, '
+            '"progress": "..."}',
+        ]
+        events = progress_stream.stream_output(output, StringIO())
+        self.assertEqual(len(events), 1)