path: root/test/test_pta.py

#!/usr/bin/env python3

from dfatool.automata import PTA
import unittest
import yaml

example_json_1 = {
    'parameters': ['datarate', 'txbytes', 'txpower'],
    'initial_param_values': [None, None, None],
    'state': {
        'IDLE': {
            'power': {
                'static': 5,
            }
        },
        'TX': {
            'power': {
                'static': 10000,
                'function': {
                    'raw': 'regression_arg(0) + regression_arg(1)'
                    ' * parameter(txpower)',
                    'regression_args': [10000, 2]
                },
            }
        },
    },
    'transitions': [
        {
            'name': 'init',
            'origin': ['UNINITIALIZED', 'IDLE'],
            'destination': 'IDLE',
            'duration': {
                'static': 50000,
            },
            'set_param': {
                'txpower': 10
            },
        },
        {
            'name': 'setTxPower',
            'origin': 'IDLE',
            'destination': 'IDLE',
            'duration': {'static': 120},
            'energy ': {'static': 10000},
            'arg_to_param_map': {0: 'txpower'},
            'argument_values': [[10, 20, 30]],
        },
        {
            'name': 'send',
            'origin': 'IDLE',
            'destination': 'TX',
            'duration': {
                'static': 10,
                'function': {
                    'raw': 'regression_arg(0) + regression_arg(1)'
                    ' * function_arg(1)',
                    'regression_args': [48, 8],
                },
            },
            'energy': {
                'static': 3,
                'function': {
                    'raw': 'regression_arg(0) + regression_arg(1)'
                    ' * function_arg(1)',
                    'regression_args': [3, 5],
                },
            },
            'arg_to_param_map': {1: 'txbytes'},
            'argument_values': [['"foo"', '"hodor"'], [3, 5]],
            'argument_combination': 'zip',
        },
        {
            'name': 'txComplete',
            'origin': 'TX',
            'destination': 'IDLE',
            'is_interrupt': 1,
            'timeout': {
                'static': 2000,
                'function': {
                    'raw': 'regression_arg(0) + regression_arg(1)'
                    ' * parameter(txbytes)',
                    'regression_args': [500, 16],
                },
            },
        }
    ],
}

example_yaml_1 = yaml.safe_load("""
codegen:
  instance: cc1200

states:
  - IDLE
  - TX

parameters:
  - datarate
  - txbytes
  - txpower

transition:
  init:
    src: [UNINITIALIZED, IDLE]
    dst: IDLE
  setTxPower:
    src: [IDLE]
    dst: IDLE
    arguments:
      - name: txpower
        values: [10, 20, 30]
        parameter: txpower
  send:
    src: [IDLE]
    dst: TX
    arguments:
      - name: data
        values: ['"foo"', '"hodor"']
      - name: length
        values: [3, 5]
        parameter: txbytes
    argument_combination: zip
  txComplete:
    src: [TX]
    dst: IDLE
    is_interrupt: true
""")

example_yaml_2 = yaml.safe_load("""
codegen:
  instance: cc1200

states:
  - IDLE
  - TX

parameters:
  - datarate
  - txbytes
  - txpower

parameter_normalization:
  txbytes:
    enum:
      FOO: 3
      LONGER: 6
  txpower:
    formula: 'param - 16'

transition:
  init:
    src: [UNINITIALIZED, IDLE]
    dst: IDLE
  setTxPower:
    src: [IDLE]
    dst: IDLE
    arguments:
      - name: txpower
        values: [10, 20, 30]
        parameter: txpower
  send:
    src: [IDLE]
    dst: TX
    arguments:
      - name: data
        values: ['FOO', 'LONGER']
        parameter: txbytes
  txComplete:
    src: [TX]
    dst: IDLE
    is_interrupt: true
""")

example_yaml_3 = yaml.safe_load("""
codegen:
  instance: nrf24l01
  includes: ['driver/nrf24l01.h']
  flags: ['drivers=nrf24l01', 'arch_drivers=spi_b']

parameters:
  - auto_ack!
  - payload_size
  - dynamic_payloads_enabled!
  - max_retry_count
  - retry_count
  - retry_delay
  - tx_power
  - datarate
  - channel

parameter_normalization:
  tx_power:
    unit: dBm
    enum:
      Nrf24l01::RF24_PA_MIN: 0
      Nrf24l01::RF24_PA_LOW: 6
      Nrf24l01::RF24_PA_HIGH: 12
      Nrf24l01::RF24_PA_MAX: 18
  datarate:
    unit: 'kbit/s'
    enum:
      Nrf24l01::RF24_1MBPS: 1000
      Nrf24l01::RF24_2MBPS: 2000
      Nrf24l01::RF24_250KBPS: 250
  retry_delay:
    unit: us
    formula: '250 * param + 250'

states:
  - UNINITIALIZED
  - STANDBY1

transition:
  setup:
    src: [UNINITIALIZED, STANDBY1]
    dst: STANDBY1
    set_param:
      'auto_ack!': 1
      'dynamic_payloads_enabled!': 0
      max_retry_count: 10
      retry_delay: 5
      datarate: 'Nrf24l01::RF24_1MBPS'
      tx_power: 'Nrf24l01::RF24_PA_MAX'
      channel: 76
  setAutoAck:
    src: [STANDBY1]
    dst: STANDBY1
    arguments:
      - name: enable
        values: [0, 1]
        parameter: 'auto_ack!'
  setPALevel:
    src: [STANDBY1]
    dst: STANDBY1
    arguments:
      - name: palevel
        values: ['Nrf24l01::RF24_PA_MIN', 'Nrf24l01::RF24_PA_LOW', 'Nrf24l01::RF24_PA_HIGH', 'Nrf24l01::RF24_PA_MAX']
        parameter: tx_power
  setRetries:
    src: [STANDBY1]
    dst: STANDBY1
    arguments:
      - name: delay
        values: [0, 5, 10, 15]
        parameter: retry_delay
      - name: count
        values: [0, 5, 10, 15]
        parameter: max_retry_count
  write:
    src: [STANDBY1]
    dst: STANDBY1
    arguments:
      - name: buf
        values: ['"foo"', '"foo"', '"foofoofoo"', '"foofoofoo"', '"123456789012345678901234567890"', '"123456789012345678901234567890"']
      - name: len
        values: [3, 3, 9, 9, 30, 30]
        parameter: payload_size
      - name: await_ack
        values: [0, 1, 0, 1, 0, 1]
      - name: blocking
        values: [1, 1, 1, 1, 1, 1]
    argument_combination: zip
""")


def dfs_tran_to_name(runs: list, with_args: bool = False, with_param: bool = False) -> list:
    if with_param:
        return list(map(lambda run: list(map(lambda x: (x[0].name, x[1], x[2]), run)), runs))
    if with_args:
        return list(map(lambda run: list(map(lambda x: (x[0].name, x[1]), run)), runs))
    return list(map(lambda run: list(map(lambda x: (x[0].name), run)), runs))


class TestPTA(unittest.TestCase):
    def test_dfs(self):
        pta = PTA(['IDLE', 'TX'])
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init')
        pta.add_transition('IDLE', 'TX', 'send')
        pta.add_transition('TX', 'IDLE', 'txComplete')
        self.assertEqual(dfs_tran_to_name(pta.dfs(0), False), [['init']])
        self.assertEqual(dfs_tran_to_name(pta.dfs(1), False), [['init', 'send']])
        self.assertEqual(dfs_tran_to_name(pta.dfs(2), False), [['init', 'send', 'txComplete']])
        self.assertEqual(dfs_tran_to_name(pta.dfs(3), False), [['init', 'send', 'txComplete', 'send']])

        pta = PTA(['IDLE'])
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init')
        pta.add_transition('IDLE', 'IDLE', 'set1')
        pta.add_transition('IDLE', 'IDLE', 'set2')
        self.assertEqual(dfs_tran_to_name(pta.dfs(0), False), [['init']])
        self.assertEqual(sorted(dfs_tran_to_name(pta.dfs(1), False)), [['init', 'set1'], ['init', 'set2']])
        self.assertEqual(sorted(dfs_tran_to_name(pta.dfs(2), False)), [['init', 'set1', 'set1'],
                                                                       ['init', 'set1', 'set2'],
                                                                       ['init', 'set2', 'set1'],
                                                                       ['init', 'set2', 'set2']])

    def test_dfs_trace_filter(self):
        pta = PTA(['IDLE'])
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init')
        pta.add_transition('IDLE', 'IDLE', 'set1')
        pta.add_transition('IDLE', 'IDLE', 'set2')
        self.assertEqual(sorted(dfs_tran_to_name(pta.dfs(2, trace_filter=[['init', 'set1', 'set2'], ['init', 'set2', 'set1']]), False)),
                         [['init', 'set1', 'set2'], ['init', 'set2', 'set1']])
        self.assertEqual(sorted(dfs_tran_to_name(pta.dfs(2, trace_filter=[['init', 'set1', '$'], ['init', 'set2', '$']]), False)),
                         [['init', 'set1'], ['init', 'set2']])

    def test_dfs_accepting(self):
        pta = PTA(['IDLE', 'TX'], accepting_states=['IDLE'])
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init')
        pta.add_transition('IDLE', 'TX', 'send')
        pta.add_transition('TX', 'IDLE', 'txComplete')
        self.assertEqual(dfs_tran_to_name(pta.dfs(0), False), [['init']])
        self.assertEqual(dfs_tran_to_name(pta.dfs(1), False), [])
        self.assertEqual(dfs_tran_to_name(pta.dfs(2), False), [['init', 'send', 'txComplete']])
        self.assertEqual(dfs_tran_to_name(pta.dfs(3), False), [])

    def test_dfs_objects(self):
        pta = PTA(['IDLE', 'TX'])
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init')
        pta.add_transition('IDLE', 'TX', 'send')
        pta.add_transition('TX', 'IDLE', 'txComplete')
        traces = list(pta.dfs(2))
        self.assertEqual(len(traces), 1)
        trace = traces[0]
        self.assertEqual(len(trace), 3)
        self.assertEqual(trace[0][0].name, 'init')
        self.assertEqual(trace[1][0].name, 'send')
        self.assertEqual(trace[2][0].name, 'txComplete')
        self.assertEqual(pta.get_transition_id(trace[0][0]), 0)
        self.assertEqual(pta.get_transition_id(trace[1][0]), 1)
        self.assertEqual(pta.get_transition_id(trace[2][0]), 2)

    def test_dfs_with_sleep(self):
        pta = PTA(['IDLE', 'TX'])
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init')
        pta.add_transition('IDLE', 'TX', 'send')
        pta.add_transition('TX', 'IDLE', 'txComplete')
        traces = list(pta.dfs(2, sleep=10))
        self.assertEqual(len(traces), 1)
        trace = traces[0]
        self.assertEqual(len(trace), 6)
        self.assertIsNone(trace[0][0])
        self.assertEqual(trace[1][0].name, 'init')
        self.assertIsNone(trace[2][0])
        self.assertEqual(trace[3][0].name, 'send')
        self.assertIsNone(trace[4][0])
        self.assertEqual(trace[5][0].name, 'txComplete')
        self.assertEqual(pta.get_transition_id(trace[1][0]), 0)
        self.assertEqual(pta.get_transition_id(trace[3][0]), 1)
        self.assertEqual(pta.get_transition_id(trace[5][0]), 2)

    def test_bfs(self):
        pta = PTA(['IDLE', 'TX'])
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init')
        pta.add_transition('IDLE', 'TX', 'send')
        pta.add_transition('TX', 'IDLE', 'txComplete')
        self.assertEqual(dfs_tran_to_name(pta.bfs(0), False), [['init']])
        self.assertEqual(dfs_tran_to_name(pta.bfs(1), False), [['init'], ['init', 'send']])
        self.assertEqual(dfs_tran_to_name(pta.bfs(2), False), [['init'], ['init', 'send'], ['init', 'send', 'txComplete']])
        self.assertEqual(dfs_tran_to_name(pta.bfs(3), False), [['init'], ['init', 'send'], ['init', 'send', 'txComplete'], ['init', 'send', 'txComplete', 'send']])

        pta = PTA(['IDLE'])
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init')
        pta.add_transition('IDLE', 'IDLE', 'set1')
        pta.add_transition('IDLE', 'IDLE', 'set2')
        self.assertEqual(dfs_tran_to_name(pta.bfs(0), False), [['init']])
        self.assertEqual(sorted(dfs_tran_to_name(pta.bfs(1), False)), [['init'], ['init', 'set1'], ['init', 'set2']])
        self.assertEqual(sorted(dfs_tran_to_name(pta.bfs(2), False)), [['init'],
                                                                       ['init', 'set1'],
                                                                       ['init', 'set1', 'set1'],
                                                                       ['init', 'set1', 'set2'],
                                                                       ['init', 'set2'],
                                                                       ['init', 'set2', 'set1'],
                                                                       ['init', 'set2', 'set2']])

    def test_from_json(self):
        pta = PTA.from_json(example_json_1)
        self.assertEqual(pta.parameters, ['datarate', 'txbytes', 'txpower'])
        self.assertEqual(pta.state['UNINITIALIZED'].name, 'UNINITIALIZED')
        self.assertEqual(pta.state['IDLE'].name, 'IDLE')
        self.assertEqual(pta.state['TX'].name, 'TX')
        self.assertEqual(len(pta.transitions), 5)
        self.assertEqual(pta.transitions[0].name, 'init')
        self.assertEqual(pta.transitions[1].name, 'init')
        self.assertEqual(pta.transitions[2].name, 'setTxPower')
        self.assertEqual(pta.transitions[3].name, 'send')
        self.assertEqual(pta.transitions[4].name, 'txComplete')

    # def test_to_json(self):
    #    pta = PTA.from_json(example_json_1)
    #    json = pta.to_json()
    #    json['state'].pop('UNINITIALIZED')
    #    print(json)
    #    self.assertDictEqual(json, example_json_1)

    def test_from_json_dfs_arg(self):
        pta = PTA.from_json(example_json_1)
        self.assertEqual(sorted(dfs_tran_to_name(pta.dfs(1), False)), [['init', 'init'], ['init', 'send'], ['init', 'setTxPower']])
        self.assertEqual(sorted(dfs_tran_to_name(pta.dfs(1, with_arguments=True), True)),
                         [
            [('init', ()), ('init', ())],
            [('init', ()), ('send', ('"foo"', 3))],
            [('init', ()), ('send', ('"hodor"', 5))],
            [('init', ()), ('setTxPower', (10,))],
            [('init', ()), ('setTxPower', (20,))],
            [('init', ()), ('setTxPower', (30,))],
        ]
        )

    def test_from_json_dfs_param(self):
        pta = PTA.from_json(example_json_1)
        no_param = {
            'datarate': None,
            'txbytes': None,
            'txpower': 10,
        }
        param_tx3 = {
            'datarate': None,
            'txbytes': 3,
            'txpower': 10,
        }
        param_tx5 = {
            'datarate': None,
            'txbytes': 5,
            'txpower': 10,
        }
        param_txp10 = {
            'datarate': None,
            'txbytes': None,
            'txpower': 10,
        }
        param_txp20 = {
            'datarate': None,
            'txbytes': None,
            'txpower': 20,
        }
        param_txp30 = {
            'datarate': None,
            'txbytes': None,
            'txpower': 30,
        }
        self.assertEqual(sorted(dfs_tran_to_name(pta.dfs(1, with_arguments=True, with_parameters=True), True, True)),
                         [
            [('init', (), no_param), ('init', (), no_param)],
            [('init', (), no_param), ('send', ('"foo"', 3), param_tx3)],
            [('init', (), no_param), ('send', ('"hodor"', 5), param_tx5)],
            [('init', (), no_param), ('setTxPower', (10,), param_txp10)],
            [('init', (), no_param), ('setTxPower', (20,), param_txp20)],
            [('init', (), no_param), ('setTxPower', (30,), param_txp30)],
        ]
        )

    def test_from_json_function(self):
        pta = PTA.from_json(example_json_1)
        self.assertEqual(pta.state['TX'].get_energy(1000, {'datarate': 10, 'txbytes': 6, 'txpower': 10}), 1000 * (10000 + 2 * 10))
        self.assertEqual(pta.transitions[4].get_timeout({'datarate': 10, 'txbytes': 6, 'txpower': 10}), 500 + 16 * 6)

    def test_from_yaml_dfs_param(self):
        pta = PTA.from_yaml(example_yaml_1)
        no_param = {
            'datarate': None,
            'txbytes': None,
            'txpower': None,
        }
        param_tx3 = {
            'datarate': None,
            'txbytes': 3,
            'txpower': None,
        }
        param_tx5 = {
            'datarate': None,
            'txbytes': 5,
            'txpower': None,
        }
        param_txp10 = {
            'datarate': None,
            'txbytes': None,
            'txpower': 10,
        }
        param_txp20 = {
            'datarate': None,
            'txbytes': None,
            'txpower': 20,
        }
        param_txp30 = {
            'datarate': None,
            'txbytes': None,
            'txpower': 30,
        }
        self.assertEqual(sorted(dfs_tran_to_name(pta.dfs(1, with_arguments=True, with_parameters=True), True, True)),
                         [
            [('init', (), no_param), ('init', (), no_param)],
            [('init', (), no_param), ('send', ('"foo"', 3), param_tx3)],
            [('init', (), no_param), ('send', ('"hodor"', 5), param_tx5)],
            [('init', (), no_param), ('setTxPower', (10,), param_txp10)],
            [('init', (), no_param), ('setTxPower', (20,), param_txp20)],
            [('init', (), no_param), ('setTxPower', (30,), param_txp30)],
        ]
        )

    def test_normalization(self):
        pta = PTA.from_yaml(example_yaml_2)
        no_param = {
            'datarate': None,
            'txbytes': None,
            'txpower': None,
        }
        param_tx3 = {
            'datarate': None,
            'txbytes': 3,
            'txpower': None,
        }
        param_tx6 = {
            'datarate': None,
            'txbytes': 6,
            'txpower': None,
        }
        param_txp10 = {
            'datarate': None,
            'txbytes': None,
            'txpower': -6,
        }
        param_txp20 = {
            'datarate': None,
            'txbytes': None,
            'txpower': 4,
        }
        param_txp30 = {
            'datarate': None,
            'txbytes': None,
            'txpower': 14,
        }
        self.assertEqual(sorted(dfs_tran_to_name(pta.dfs(1, with_arguments=True, with_parameters=True), True, True)),
                         [
            [('init', (), no_param), ('init', (), no_param)],
            [('init', (), no_param), ('send', ('FOO',), param_tx3)],
            [('init', (), no_param), ('send', ('LONGER',), param_tx6)],
            [('init', (), no_param), ('setTxPower', (10,), param_txp10)],
            [('init', (), no_param), ('setTxPower', (20,), param_txp20)],
            [('init', (), no_param), ('setTxPower', (30,), param_txp30)],
        ]
        )

    def test_shrink(self):
        pta = PTA.from_yaml(example_yaml_3)
        pta.shrink_argument_values()
        self.assertEqual(pta.transitions[0].name, 'setAutoAck')
        self.assertEqual(pta.transitions[1].name, 'setPALevel')
        self.assertEqual(pta.transitions[2].name, 'setRetries')
        self.assertEqual(pta.transitions[3].name, 'setup')
        self.assertEqual(pta.transitions[4].name, 'setup')
        self.assertEqual(pta.transitions[5].name, 'write')
        self.assertEqual(pta.transitions[0].argument_values, [[0, 1]])
        self.assertEqual(pta.transitions[1].argument_values, [['Nrf24l01::RF24_PA_MIN', 'Nrf24l01::RF24_PA_MAX']])
        self.assertEqual(pta.transitions[2].argument_values, [[0, 15], [0, 15]])
        self.assertEqual(pta.transitions[5].argument_values, [['"foo"', '"foo"', '"foofoofoo"', '"foofoofoo"', '"123456789012345678901234567890"',
                                                               '"123456789012345678901234567890"'], [3, 3, 9, 9, 30, 30], [0, 1, 0, 1, 0, 1], [1, 1, 1, 1, 1, 1]])

    def test_simulation(self):
        pta = PTA()
        pta.add_state('IDLE', power=5)
        pta.add_state('TX', power=100)
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init', duration=50000)
        pta.add_transition('IDLE', 'TX', 'send', energy=3, duration=10)
        pta.add_transition('TX', 'IDLE', 'txComplete', timeout=2000, is_interrupt=True)
        trace = [
            ['init'],
            [None, 10000000],
            ['send', 'foo', 3],
            [None, 5000000],
            ['send', 'foo', 3]
        ]
        expected_energy = 5. * 10000000 + 3 + 100 * 2000 + 5 * 5000000 + 3 + 100 * 2000
        expected_duration = 50000 + 10000000 + 10 + 2000 + 5000000 + 10 + 2000
        result = pta.simulate(trace)
        self.assertAlmostEqual(result.energy, expected_energy * 1e-12, places=12)
        self.assertAlmostEqual(result.duration, expected_duration * 1e-6, places=6)
        self.assertEqual(result.end_state.name, 'IDLE')
        self.assertEqual(result.parameters, {})

    def test_simulation_param_none(self):
        pta = PTA(parameters=['txpower', 'length'])
        pta.add_state('IDLE', power=5)
        pta.add_state('TX', power=100)
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init', energy=500000, duration=50000)
        pta.add_transition('IDLE', 'TX', 'send', energy=3, duration=10)
        pta.add_transition('TX', 'IDLE', 'txComplete', timeout=2000, is_interrupt=True)
        trace = [
            ['init'],
        ]
        expected_energy = 500000
        expected_duration = 50000
        result = pta.simulate(trace)
        self.assertAlmostEqual(result.energy, expected_energy * 1e-12, places=12)
        self.assertAlmostEqual(result.duration, expected_duration * 1e-6, places=6)
        self.assertEqual(result.end_state.name, 'IDLE')
        self.assertEqual(result.parameters, {
            'txpower': None,
            'length': None
        })

    def test_simulation_param_update_function(self):
        pta = PTA(parameters=['txpower', 'length'])
        pta.add_state('IDLE', power=5)
        pta.add_state('TX', power=100)
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init', energy=500000, duration=50000)
        pta.add_transition('IDLE', 'IDLE', 'setTxPower', energy=10000, duration=120,
                           param_update_function=lambda param, arg: {**param, 'txpower': arg[0]})
        pta.add_transition('IDLE', 'TX', 'send', energy=3, duration=10)
        pta.add_transition('TX', 'IDLE', 'txComplete', timeout=2000, is_interrupt=True)
        trace = [
            ['init'],
            ['setTxPower', 10]
        ]
        expected_energy = 510000
        expected_duration = 50120
        result = pta.simulate(trace)
        self.assertAlmostEqual(result.energy, expected_energy * 1e-12, places=12)
        self.assertAlmostEqual(result.duration, expected_duration * 1e-6, places=6)
        self.assertEqual(result.end_state.name, 'IDLE')
        self.assertEqual(result.parameters, {
            'txpower': 10,
            'length': None
        })

    def test_simulation_arg_to_param_map(self):
        pta = PTA(parameters=['txpower', 'length'])
        pta.add_state('IDLE', power=5)
        pta.add_state('TX', power=100)
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init', energy=500000, duration=50000)
        pta.add_transition('IDLE', 'IDLE', 'setTxPower', energy=10000, duration=120,
                           arg_to_param_map={0: 'txpower'})
        pta.add_transition('IDLE', 'TX', 'send', energy=3, duration=10)
        pta.add_transition('TX', 'IDLE', 'txComplete', timeout=2000, is_interrupt=True)
        trace = [
            ['init'],
            ['setTxPower', 10]
        ]
        expected_energy = 510000
        expected_duration = 50120
        result = pta.simulate(trace)
        self.assertAlmostEqual(result.energy, expected_energy * 1e-12, places=12)
        self.assertAlmostEqual(result.duration, expected_duration * 1e-6, places=6)
        self.assertEqual(result.end_state.name, 'IDLE')
        self.assertEqual(result.parameters, {
            'txpower': 10,
            'length': None
        })

    def test_simulation_set_param(self):
        pta = PTA(parameters=['txpower', 'length'])
        pta.add_state('IDLE', power=5)
        pta.add_state('TX', power=100)
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init', energy=500000, duration=50000, set_param={'txpower': 10})
        trace = [
            ['init'],
        ]
        expected_energy = 500000
        expected_duration = 50000
        result = pta.simulate(trace)
        self.assertAlmostEqual(result.energy, expected_energy * 1e-12, places=12)
        self.assertAlmostEqual(result.duration, expected_duration * 1e-6, places=6)
        self.assertEqual(result.end_state.name, 'IDLE')
        self.assertEqual(result.parameters, {
            'txpower': 10,
            'length': None
        })

    def test_simulation_arg_function(self):
        pta = PTA(parameters=['txpower', 'length'])
        pta.add_state('IDLE', power=5)
        pta.add_state('TX', power=100)
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init', energy=500000, duration=50000)
        pta.add_transition('IDLE', 'IDLE', 'setTxPower', energy=10000, duration=120,
                           param_update_function=lambda param, arg: {**param, 'txpower': arg[0]})
        pta.add_transition('IDLE', 'TX', 'send', energy=3, duration=10,
                           energy_function=lambda param, arg: 3 + 5 * arg[1],
                           duration_function=lambda param, arg: 48 + 8 * arg[1])
        pta.add_transition('TX', 'IDLE', 'txComplete', timeout=2000, is_interrupt=True)
        trace = [
            ['init'],
            ['setTxPower', 10],
            ['send', 'foo', 3],
        ]
        expected_energy = 500000 + 10000 + (3 + 5 * 3) + (2000 * 100)
        expected_duration = 50000 + 120 + (48 + 8 * 3) + 2000
        result = pta.simulate(trace)
        self.assertAlmostEqual(result.energy, expected_energy * 1e-12, places=12)
        self.assertAlmostEqual(result.duration, expected_duration * 1e-6, places=6)
        self.assertEqual(result.end_state.name, 'IDLE')
        self.assertEqual(result.parameters, {
            'txpower': 10,
            'length': None
        })

        pta = PTA(parameters=['txpower', 'length'])
        pta.add_state('IDLE', power=5)
        pta.add_state('TX', power=100)
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init', energy=500000, duration=50000)
        pta.add_transition('IDLE', 'IDLE', 'setTxPower', energy=10000, duration=120,
                           param_update_function=lambda param, arg: {**param, 'txpower': arg[0]})
        pta.add_transition('IDLE', 'TX', 'send', energy=3, duration=10,
                           energy_function=lambda param, arg: 3 + 5 * arg[1],
                           duration_function=lambda param, arg: 48 + 8 * arg[1])
        pta.add_transition('TX', 'IDLE', 'txComplete', timeout=2000, is_interrupt=True)
        trace = [
            ['init'],
            ['setTxPower', 10],
            ['send', 'foobar', 6],
        ]
        expected_energy = 500000 + 10000 + (3 + 5 * 6) + (2000 * 100)
        expected_duration = 50000 + 120 + (48 + 8 * 6) + 2000
        result = pta.simulate(trace)
        self.assertAlmostEqual(result.energy, expected_energy * 1e-12, places=12)
        self.assertAlmostEqual(result.duration, expected_duration * 1e-6, places=6)
        self.assertEqual(result.end_state.name, 'IDLE')
        self.assertEqual(result.parameters, {
            'txpower': 10,
            'length': None
        })

    def test_simulation_param_function(self):
        pta = PTA(parameters=['length', 'txpower'])
        pta.add_state('IDLE', power=5)
        pta.add_state('TX', power=100,
                      power_function=lambda param, arg: 1000 + 2 * param[1])
        pta.add_transition('UNINITIALIZED', 'IDLE', 'init', energy=500000, duration=50000)
        pta.add_transition('IDLE', 'IDLE', 'setTxPower', energy=10000, duration=120,
                           param_update_function=lambda param, arg: {**param, 'txpower': arg[0]})
        pta.add_transition('IDLE', 'TX', 'send', energy=3, duration=10,
                           energy_function=lambda param, arg: 3 + 5 * arg[1],
                           param_update_function=lambda param, arg: {**param, 'length': arg[1]})
        pta.add_transition('TX', 'IDLE', 'txComplete', timeout=2000, is_interrupt=True,
                           timeout_function=lambda param, arg: 500 + 16 * param[0])
        trace = [
            ['init'],
            ['setTxPower', 10],
            ['send', 'foo', 3],
        ]
        expected_energy = 500000 + 10000 + (3 + 5 * 3) + (1000 + 2 * 10) * (500 + 16 * 3)
        expected_duration = 50000 + 120 + 10 + (500 + 16 * 3)
        result = pta.simulate(trace)
        self.assertAlmostEqual(result.energy, expected_energy * 1e-12, places=12)
        self.assertAlmostEqual(result.duration, expected_duration * 1e-6, places=6)
        self.assertEqual(result.end_state.name, 'IDLE')
        self.assertEqual(result.parameters, {
            'txpower': 10,
            'length': 3
        })

    def test_get_X_expensive_state(self):
        pta = PTA.from_json(example_json_1)
        self.assertEqual(pta.get_least_expensive_state(), pta.state['IDLE'])
        self.assertEqual(pta.get_most_expensive_state(), pta.state['TX'])
        # self.assertAlmostEqual(pta.min_duration_until_energy_overflow(), (2**32 - 1) * 1e-12 / 10e-3, places=9)
        # self.assertAlmostEqual(pta.min_duration_until_energy_overflow(energy_granularity=1e-9), (2**32 - 1) * 1e-9 / 10e-3, places=9)
        self.assertAlmostEqual(pta.max_duration_until_energy_overflow(), (2**32 - 1) * 1e-12 / 5e-6, places=9)
        self.assertAlmostEqual(pta.max_duration_until_energy_overflow(energy_granularity=1e-9), (2**32 - 1) * 1e-9 / 5e-6, places=9)


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