#----------------------------------------------------------------------------
# Copyright (c) 2014, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in /LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license.  The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
#
# Thanks for using Enthought open source!
#
#----------------------------------------------------------------------------
import unittest
from traits.util.event_tracer import (
    SentinelRecord, ChangeMessageRecord, CallingMessageRecord,
    ExitMessageRecord)


class TestMessageRecords(unittest.TestCase):

    def test_base_message_record(self):
        record = SentinelRecord()

        # Check unicode output
        self.assertEqual(str(record), '\n')

        # Check initialization
        self.assertRaises(TypeError, SentinelRecord, sdd=0)

    def test_change_message_record(self):
        record = ChangeMessageRecord(
            time=1,  indent=3, name='john', old=1, new=1,
            class_name='MyClass')

        # Check unicode output
        self.assertEqual(
            str(record),
            "1 -----> 'john' changed from 1 to 1 in 'MyClass'\n")

        # Check initialization
        self.assertRaises(TypeError, ChangeMessageRecord, sdd=0)

    def test_exit_message_record(self):
        record = ExitMessageRecord(
            time=7,  indent=5, handler='john', exception='sssss')

        # Check unicode output
        self.assertEqual(
            str(record), "7 <--------- EXIT: 'john'sssss\n")

        # Check initialization
        self.assertRaises(TypeError, ExitMessageRecord, sdd=0)

    def test_calling_message_record(self):
        record = CallingMessageRecord(
            time=7,  indent=5, handler='john', source='sssss')

        # Check unicode output
        self.assertEqual(
            str(record), "7             CALLING: 'john' in sssss\n")

        # Check initialization
        self.assertRaises(TypeError, CallingMessageRecord, sdd=0)


if __name__ == '__main__':
    unittest.main()
