"""Test suite for supervisor.states"""

import unittest
from supervisor import states

class TopLevelProcessStateTests(unittest.TestCase):
    def test_module_has_process_states(self):
        self.assertTrue(hasattr(states, 'ProcessStates'))
    
    def test_stopped_states_do_not_overlap_with_running_states(self):
        for state in states.STOPPED_STATES:
            self.assertFalse(state in states.RUNNING_STATES)

    def test_running_states_do_not_overlap_with_stopped_states(self):
        for state in states.RUNNING_STATES:
            self.assertFalse(state in states.STOPPED_STATES)

    def test_getProcessStateDescription_returns_string_when_found(self):
        state = states.ProcessStates.STARTING
        self.assertEqual(states.getProcessStateDescription(state),
            'STARTING')

    def test_getProcessStateDescription_returns_None_when_not_found(self):
        self.assertEqual(states.getProcessStateDescription(3.14159),
            None)

class TopLevelSupervisorStateTests(unittest.TestCase):
    def test_module_has_supervisor_states(self):
        self.assertTrue(hasattr(states, 'SupervisorStates'))

    def test_getSupervisorStateDescription_returns_string_when_found(self):
        state = states.SupervisorStates.RUNNING
        self.assertEqual(states.getSupervisorStateDescription(state),
            'RUNNING')

    def test_getSupervisorStateDescription_returns_None_when_not_found(self):
        self.assertEqual(states.getSupervisorStateDescription(3.14159),
            None)

class TopLevelEventListenerStateTests(unittest.TestCase):
    def test_module_has_eventlistener_states(self):
        self.assertTrue(hasattr(states, 'EventListenerStates'))

    def test_getEventListenerStateDescription_returns_string_when_found(self):
        state = states.EventListenerStates.ACKNOWLEDGED
        self.assertEqual(states.getEventListenerStateDescription(state),
            'ACKNOWLEDGED')

    def test_getEventListenerStateDescription_returns_None_when_not_found(self):
        self.assertEqual(states.getEventListenerStateDescription(3.14159),
            None)
