Checking for raising the correct exception and moved the strings used…

… in the test to a list of strings

categories/tests/category_import.py

@@ -4,6 +4,7 @@
 import unittest, os
 from categories.models import Category
 from categories.management.commands.import_categories import Command
+from django.core.management.base import CommandError
 
 class CategoryImportTest(unittest.TestCase):
     def setUp(self):
@@ -39,11 +40,11 @@ def testMixingTabsSpaces(self):
         """
         Should raise an exception.
         """
-        string1 = "cat1\n    cat1-1\n\tcat1-2-FAIL!\n"
-        string2 = "cat1\n\tcat1-1\n    cat1-2-FAIL!\n"
+        string1 = ["cat1","    cat1-1", "\tcat1-2-FAIL!",""]
+        string2 = ["cat1","\tcat1-1","    cat1-2-FAIL!",""]
         cmd = Command()
 
         # raise Exception
-        self.assertRaises(cmd.parse_lines(string1), Command.CommandError)
-        self.assertRaises(cmd.parse_lines(string2), Command.CommandError)
+        self.assertRaises(CommandError, cmd.parse_lines, string1)
+        self.assertRaises(CommandError, cmd.parse_lines, string2)