# Copyright 2021 (c) Anna Schumaker.
from . import publisher
from . import thread
import threading
import unittest

class TestThread(unittest.TestCase):
    def setUp(self):
        self.started = None
        self.called  = False
        self.thread  = thread.Thread(self.thread_func)

    def thread_func(self):
        self.assertIsNotNone(self.thread.thread)
        self.called = True

    def on_thread_start(self, thread):
        self.started = thread

    def test_thread(self):
        self.assertIsInstance(thread.Start, publisher.Publisher)
        thread.Start.register(self.on_thread_start)

        self.assertIsInstance(self.thread.lock, type(threading.Lock()))
        self.assertEqual(self.thread.func, self.thread_func)
        self.assertIsNone(self.thread.thread)
        self.assertFalse(self.thread.running())

        self.assertEqual(self.thread(), self.thread)
        self.thread.join()

        self.assertTrue(self.called)
        self.assertFalse(self.thread.running())
        self.assertEqual(self.started, self.thread)
        self.assertIsNone(self.thread.thread)