Fixed tests failing in gnome-terminal.

BUGS

@@ -13,7 +13,6 @@ Current
 - When shutting down "Exception ignored in:" noise appears. Four messages
   for every worker running. This started with the move to asyncio for the
   workers.
-- The tests fail when run in gnome-terminal.
 
 
 Current (tool related)
@@ -234,6 +233,7 @@ Fixed
   <- Now vigil always gets sudo.
 - Some results are always missing their contents and are showing "?".
   e.g. golden-files/results/uncrustify-hello_c <- contents and metadata
+- The tests fail when run in gnome-terminal.
 
 
 Won't fix

termstr_test.py

@@ -3,9 +3,12 @@
 # Copyright (C) 2015-2016 Andrew Hamilton. All rights reserved.
 # Licensed under the Artistic License 2.0.
 
+import os
 import pickle
 import unittest
 
+os.environ["TERM"] = "st-256color"
+
 from termstr import TermStr, CharStyle
 import termstr
 

tools_test.py

@@ -9,6 +9,8 @@ import subprocess
 import unittest
 import unittest.mock
 
+os.environ["TERM"] = "st-256color"
+
 import fill3
 import golden
 import tools

vigil_test.py

@@ -13,6 +13,8 @@ import unittest
 
 import psutil
 
+os.environ["TERM"] = "st-256color"
+
 import fill3
 import golden
 import vigil