Add test for print functionality.

Load a lotv replay and print all the events to ensure they print.
The output from the prints have been redirected to a stream using
StringIO and then checked for the last few events to occur.

test_replays/test_all.py

@@ -11,6 +11,11 @@
     import unittest2 as unittest
 else:
     import unittest
+# StringIO was changed in python 3
+try:
+    from io import StringIO
+except ImportError:
+    from StringIO import StringIO
 
 import sc2reader
 from sc2reader.exceptions import CorruptTrackerFileError
@@ -582,6 +587,15 @@ def test_65895(self):
         factory = sc2reader.factories.SC2Factory()
         replay = factory.load_replay(replayfilename)
 
+    def test_event_print(self):
+        replay = sc2reader.load_replay("test_replays/lotv/lotv1.SC2Replay")
+        with StringIO() as capturedOutput:
+            sys.stdout = capturedOutput
+            for event in replay.events:
+                print(event)
+            self.assertIn("PlayerLeaveEvent", capturedOutput.getvalue())
+            sys.stdout = sys.__stdout__
+
 
 class TestGameEngine(unittest.TestCase):
     class TestEvent(object):