Add test case for IcalCommand.

test/IcalCommandTest.py

+# Topydo - A todo.txt client written in Python.
+# Copyright (C) 2015 Bram Schoenmakers <me@bramschoenmakers.nl>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import re
+import unittest
+
+from topydo.lib.Config import config
+import CommandTest
+from topydo.lib.IcalCommand import IcalCommand
+import TestFacilities
+
+class IcalCommandTest(CommandTest.CommandTest):
+    def setUp(self):
+        super(IcalCommandTest, self).setUp()
+        self.todolist = TestFacilities.load_file_to_todolist("test/data/ListCommandTest.txt")
+
+    def test_ical(self):
+        def replace_ical_tags(p_text):
+            # replace identifiers with dots, since they're random.
+            result = re.sub(r'\bical:....\b', 'ical:....', p_text)
+            result = re.sub(r'\bUID:....\b', 'UID:....', result)
+
+            return result
+
+        command = IcalCommand([""], self.todolist, self.out, self.error)
+        command.execute()
+
+        self.assertTrue(self.todolist.is_dirty())
+
+        icaltext = ""
+        with open('test/data/ListCommandTest.ics', 'r') as ical:
+            icaltext = "".join(ical.readlines())
+
+        self.assertEquals(replace_ical_tags(self.output), replace_ical_tags(icaltext))
+        self.assertEquals(self.errors, "")
+
+    def test_help(self):
+        command = IcalCommand(["help"], self.todolist, self.out, self.error)
+        command.execute()
+
+        self.assertEquals(self.output, "")
+        self.assertEquals(self.errors, command.usage() + "\n\n" + command.help() + "\n")
+
+if __name__ == '__main__':
+    unittest.main()