Share output spying for tests.

test/conftest.py

@@ -1,10 +1,35 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
-import os, sys
+import pytest, os, sys, io
-import pytest
+
+
+if sys.version_info[0] == 2:
+	import StringIO
+	StringIO = StringIO.StringIO
+else:
+	StringIO = io.StringIO
+
 
 @pytest.fixture(scope='module')
 def ssh_audit():
 	__rdir = os.path.join(os.path.dirname(os.path.abspath(__file__)), '..')
 	sys.path.append(os.path.abspath(__rdir))
 	return __import__('ssh-audit')
+
+
+class _OutputSpy(list):
+	def begin(self):
+		self.__out = StringIO()
+		self.__old_stdout = sys.stdout
+		sys.stdout = self.__out
+		
+	def flush(self):
+		lines = self.__out.getvalue().splitlines()
+		sys.stdout = self.__old_stdout
+		self.__out = None
+		return lines
+
+
+@pytest.fixture(scope='module')
+def output_spy():
+	return _OutputSpy()