Add testcase for #3 (encoding issues)

tsstats/tests/res/test.log.utf8

@@ -0,0 +1,2 @@
+2015-05-18 15:55:23.456679|INFO    |VirtualServerBase|  3| client connected 'Cläönt1'(id:1) from 1.2.3.4:1234
+2015-05-18 16:00:14.951191|INFO    |VirtualServerBase|  3| client disconnected 'Cläönt1'(id:1) reason 'reasonmsg=ByeBye!'

tsstats/tests/test_log.py

@@ -1,10 +1,13 @@
 from datetime import datetime, timedelta
+from os import remove
 from time import sleep
 
 import pytest
 
 from tsstats.exceptions import InvalidLog
 from tsstats.log import TimedLog, _bundle_logs, _parse_details, parse_logs
+from tsstats.template import render_template
+from tsstats.tests.test_template import output_path
 
 testlog_path = 'tsstats/tests/res/test.log'
 
@@ -87,3 +90,9 @@ def test_parse_logs():
 def test_parse_groups():
     clients = _parse_details('tsstats/tests/res/test.log.groups')
     assert len(clients) == 0
+
+
+def test_parse_utf8():
+    clients = parse_logs(testlog_path + '.utf8')['']
+    render_template(clients, output_path)
+    remove(output_path)