#!/usr/bin/env python
#
# Copyright 2018 Espressif Systems (Shanghai) PTE LTD
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""
Test script for unit test case.
"""

import argparse
import re
import threading
import time

import ttfw_idf
from tiny_test_fw import DUT, Env, TinyFW, Utility
from tiny_test_fw.TinyFW import TestCaseFailed
from tiny_test_fw.Utility import format_case_id, handle_unexpected_exception

UT_APP_BOOT_UP_DONE = "Press ENTER to see the list of tests."

STRIP_CONFIG_PATTERN = re.compile(r'(.+?)(_\d+)?$')

# matches e.g.: "rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)"
RESET_PATTERN = re.compile(r"(rst:0x[0-9a-fA-F]*\s\([\w].*?\),boot:0x[0-9a-fA-F]*\s\([\w].*?\))")

EXCEPTION_PATTERN = re.compile(r"(Guru Meditation Error: Core\s+\d panic'ed \([\w].*?\))")
ABORT_PATTERN = re.compile(r"(abort\(\) was called at PC 0x[a-fA-F\d]{8} on core \d)")
FINISH_PATTERN = re.compile(r"1 Tests (\d) Failures (\d) Ignored")
END_LIST_STR = r'\r?\nEnter test for running'
TEST_PATTERN = re.compile(r'\((\d+)\)\s+"([^"]+)" ([^\r\n]+)\r?\n(' + END_LIST_STR + r')?')
TEST_SUBMENU_PATTERN = re.compile(r'\s+\((\d+)\)\s+"[^"]+"\r?\n(?=(?=\()|(' + END_LIST_STR + r'))')
UT_APP_PATH = "tools/unit-test-app"

SIMPLE_TEST_ID = 0
MULTI_STAGE_ID = 1
MULTI_DEVICE_ID = 2

DEFAULT_TIMEOUT = 20

DUT_DELAY_AFTER_RESET = 2
DUT_STARTUP_CHECK_RETRY_COUNT = 5
TEST_HISTORY_CHECK_TIMEOUT = 2


def reset_reason_matches(reported_str, expected_str):
    known_aliases = {
        "_RESET": "_RST",
        "POWERON_RESET": "POWERON",
        "DEEPSLEEP_RESET": "DSLEEP",
    }

    if expected_str in reported_str:
        return True

    for token, alias in known_aliases.items():
        if token in expected_str:
            alt_expected_str = expected_str.replace(token, alias)
            if alt_expected_str in reported_str:
                return True

    return False


def format_test_case_config(test_case_data, target='esp32'):
    """
    convert the test case data to unified format.
    We need to following info to run unit test cases:

    1. unit test app config
    2. test case name
    3. test case reset info

    the formatted case config is a dict, with ut app config as keys. The value is a list of test cases.
    Each test case is a dict with "name" and "reset" as keys. For example::

    case_config = {
        "default": [{"name": "restart from PRO CPU", "reset": "SW_CPU_RESET"}, {...}],
        "psram": [{"name": "restart from PRO CPU", "reset": "SW_CPU_RESET"}],
    }

    If config is not specified for test case, then

    :param test_case_data: string, list, or a dictionary list
    :param target: target
    :return: formatted data
    """

    case_config = dict()

    def parse_case(one_case_data):
        """ parse and format one case """

        def process_reset_list(reset_list):
            # strip space and remove white space only items
            _output = list()
            for _r in reset_list:
                _data = _r.strip(" ")
                if _data:
                    _output.append(_data)
            return _output

        _case = dict()
        if isinstance(one_case_data, str):
            _temp = one_case_data.split(" [reset=")
            _case["name"] = _temp[0]
            try:
                _case["reset"] = process_reset_list(_temp[1][0:-1].split(","))
            except IndexError:
                _case["reset"] = list()
        elif isinstance(one_case_data, dict):
            _case = one_case_data.copy()
            assert "name" in _case
            if "reset" not in _case:
                _case["reset"] = list()
            else:
                if isinstance(_case["reset"], str):
                    _case["reset"] = process_reset_list(_case["reset"].split(","))
        else:
            raise TypeError("Not supported type during parsing unit test case")

        if "config" not in _case:
            _case["config"] = "default"

        if 'target' not in _case:
            _case['target'] = target

        return _case

    if not isinstance(test_case_data, list):
        test_case_data = [test_case_data]

    for case_data in test_case_data:
        parsed_case = parse_case(case_data)
        try:
            case_config[parsed_case["config"]].append(parsed_case)
        except KeyError:
            case_config[parsed_case["config"]] = [parsed_case]

    return case_config


def replace_app_bin(dut, name, new_app_bin):
    if new_app_bin is None:
        return
    search_pattern = '/{}.bin'.format(name)
    for i, config in enumerate(dut.download_config):
        if config.endswith(search_pattern):
            dut.download_config[i] = new_app_bin
            Utility.console_log("The replaced application binary is {}".format(new_app_bin), "O")
            break


def format_case_name(case):
    # we could split cases of same config into multiple binaries as we have limited rom space
    # we should regard those configs like `default` and `default_2` as the same config
    match = STRIP_CONFIG_PATTERN.match(case['config'])
    stripped_config_name = match.group(1)
    return format_case_id(case['name'], target=case['target'], config=stripped_config_name)


def reset_dut(dut):
    dut.reset()
    # esptool ``run`` cmd takes quite long time.
    # before reset finish, serial port is closed. therefore DUT could already bootup before serial port opened.
    # this could cause checking bootup print failed.
    # now use input cmd `-` and check test history to check if DUT is bootup.
    # we'll retry this step for a few times,
    # in case `dut.reset` returns during DUT bootup (when DUT can't process any command).
    #
    # during bootup, DUT might only receive part of the first `-` command.
    # If it only receive `\n`, then it will print all cases. It could take more than 5 seconds, reset check will fail.
    # To solve this problem, we will add a delay between reset and input `-` command. And we'll also enlarge expect timeout.
    time.sleep(DUT_DELAY_AFTER_RESET)
    for _ in range(DUT_STARTUP_CHECK_RETRY_COUNT):
        dut.write("-")
        try:
            dut.expect("0 Tests 0 Failures 0 Ignored", timeout=TEST_HISTORY_CHECK_TIMEOUT)
            break
        except DUT.ExpectTimeout:
            pass
    else:
        raise AssertionError("Reset {} ({}) failed!".format(dut.name, dut.port))


def log_test_case(description, test_case, ut_config):
    Utility.console_log("Running {} '{}' (config {})".format(description, test_case['name'], ut_config),
                        color='orange')
    Utility.console_log('Tags: %s' % ', '.join('%s=%s' % (k, v) for (k, v) in test_case.items()
                                               if k != 'name' and v is not None),
                        color='orange')


def run_one_normal_case(dut, one_case, junit_test_case):

    reset_dut(dut)

    dut.start_capture_raw_data()
    # run test case
    dut.write("\"{}\"".format(one_case["name"]))
    dut.expect("Running " + one_case["name"] + "...")

    exception_reset_list = []

    # we want to set this flag in callbacks (inner functions)
    # use list here so we can use append to set this flag
    test_finish = list()

    # expect callbacks
    def one_case_finish(result):
        """ one test finished, let expect loop break and log result """
        test_finish.append(True)
        output = dut.stop_capture_raw_data()
        if result:
            Utility.console_log("Success: " + format_case_name(one_case), color="green")
        else:
            Utility.console_log("Failed: " + format_case_name(one_case), color="red")
            junit_test_case.add_failure_info(output)
            raise TestCaseFailed()

    def handle_exception_reset(data):
        """
        just append data to exception list.
        exception list will be checked in ``handle_reset_finish``, once reset finished.
        """
        exception_reset_list.append(data[0])

    def handle_test_finish(data):
        """ test finished without reset """
        # in this scenario reset should not happen
        assert not exception_reset_list
        if int(data[1]):
            # case ignored
            Utility.console_log("Ignored: " + format_case_name(one_case), color="orange")
            junit_test_case.add_skipped_info("ignored")
        one_case_finish(not int(data[0]))

    def handle_reset_finish(data):
        """ reset happened and reboot finished """
        assert exception_reset_list  # reboot but no exception/reset logged. should never happen
        result = False
        if len(one_case["reset"]) == len(exception_reset_list):
            for i, exception in enumerate(exception_reset_list):
                if not reset_reason_matches(exception, one_case["reset"][i]):
                    break
            else:
                result = True
        if not result:
            err_msg = "Reset Check Failed: \r\n\tExpected: {}\r\n\tGet: {}".format(one_case["reset"],
                                                                                   exception_reset_list)
            Utility.console_log(err_msg, color="orange")
            junit_test_case.add_failure_info(err_msg)
        one_case_finish(result)

    while not test_finish:
        try:
            timeout_value = one_case["timeout"]
            dut.expect_any((RESET_PATTERN, handle_exception_reset),
                           (EXCEPTION_PATTERN, handle_exception_reset),
                           (ABORT_PATTERN, handle_exception_reset),
                           (FINISH_PATTERN, handle_test_finish),
                           (UT_APP_BOOT_UP_DONE, handle_reset_finish),
                           timeout=timeout_value)
        except DUT.ExpectTimeout:
            Utility.console_log("Timeout in expect (%s seconds)" % timeout_value, color="orange")
            junit_test_case.add_failure_info("timeout")
            one_case_finish(False)
            break


@ttfw_idf.idf_unit_test(env_tag="UT_T1_1", junit_report_by_case=True)
def run_unit_test_cases(env, extra_data):
    """
    extra_data can be three types of value
    1. as string:
               1. "case_name"
               2. "case_name [reset=RESET_REASON]"
    2. as dict:
               1. with key like {"name": "Intr_alloc test, shared ints"}
               2. with key like {"name": "restart from PRO CPU", "reset": "SW_CPU_RESET", "config": "psram"}
    3. as list of string or dict:
               [case1, case2, case3, {"name": "restart from PRO CPU", "reset": "SW_CPU_RESET"}, ...]

    :param env: test env instance
    :param extra_data: the case name or case list or case dictionary
    :return: None
    """

    case_config = format_test_case_config(extra_data, env.default_dut_cls.TARGET)

    # we don't want stop on failed case (unless some special scenarios we can't handle)
    # this flag is used to log if any of the case failed during executing
    # Before exit test function this flag is used to log if the case fails
    failed_cases = []

    for ut_config in case_config:
        Utility.console_log("Running unit test for config: " + ut_config, "O")
        dut = env.get_dut("unit-test-app", app_path=UT_APP_PATH, app_config_name=ut_config, allow_dut_exception=True)
        if len(case_config[ut_config]) > 0:
            replace_app_bin(dut, "unit-test-app", case_config[ut_config][0].get('app_bin'))
        dut.start_app()
        Utility.console_log("Download finished, start running test cases", "O")

        for one_case in case_config[ut_config]:
            log_test_case("test case", one_case, ut_config)
            performance_items = []
            # create junit report test case
            junit_test_case = TinyFW.JunitReport.create_test_case(format_case_name(one_case))
            try:
                run_one_normal_case(dut, one_case, junit_test_case)
                performance_items = dut.get_performance_items()
            except TestCaseFailed:
                failed_cases.append(format_case_name(one_case))
            except Exception as e:
                handle_unexpected_exception(junit_test_case, e)
                failed_cases.append(format_case_name(one_case))
            finally:
                TinyFW.JunitReport.update_performance(performance_items)
                TinyFW.JunitReport.test_case_finish(junit_test_case)
        # close DUT when finish running all cases for one config
        env.close_dut(dut.name)


class Handler(threading.Thread):

    WAIT_SIGNAL_PATTERN = re.compile(r'Waiting for signal: \[(.+)]!')
    SEND_SIGNAL_PATTERN = re.compile(r'Send signal: \[([^]]+)](\[([^]]+)])?!')
    FINISH_PATTERN = re.compile(r"1 Tests (\d) Failures (\d) Ignored")

    def __init__(self, dut, sent_signal_list, lock, parent_case_name, child_case_index, timeout):
        self.dut = dut
        self.sent_signal_list = sent_signal_list
        self.lock = lock
        self.parent_case_name = parent_case_name
        self.child_case_name = ""
        self.child_case_index = child_case_index + 1
        self.finish = False
        self.result = False
        self.output = ""
        self.fail_name = None
        self.timeout = timeout
        self.force_stop = threading.Event()  # it show the running status

        reset_dut(self.dut)  # reset the board to make it start from begining

        threading.Thread.__init__(self, name="{} Handler".format(dut))

    def run(self):

        self.dut.start_capture_raw_data()

        def get_child_case_name(data):
            self.child_case_name = data[0]
            time.sleep(1)
            self.dut.write(str(self.child_case_index))

        def one_device_case_finish(result):
            """ one test finished, let expect loop break and log result """
            self.finish = True
            self.result = result
            self.output = "[{}]\n\n{}\n".format(self.child_case_name,
                                                self.dut.stop_capture_raw_data())
            if not result:
                self.fail_name = self.child_case_name

        def device_wait_action(data):
            start_time = time.time()
            expected_signal = data[0].encode('utf-8')
            while 1:
                if time.time() > start_time + self.timeout:
                    Utility.console_log("Timeout in device for function: %s" % self.child_case_name, color="orange")
                    break
                with self.lock:
                    for sent_signal in self.sent_signal_list:
                        if expected_signal == sent_signal["name"]:
                            self.dut.write(sent_signal["parameter"])
                            self.sent_signal_list.remove(sent_signal)
                            break
                    else:
                        time.sleep(0.01)
                        continue
                    break

        def device_send_action(data):
            with self.lock:
                self.sent_signal_list.append({
                    "name": data[0].encode('utf-8'),
                    "parameter": "" if data[2] is None else data[2].encode('utf-8')
                    # no parameter means we only write EOL to DUT
                })

        def handle_device_test_finish(data):
            """ test finished without reset """
            # in this scenario reset should not happen
            if int(data[1]):
                # case ignored
                Utility.console_log("Ignored: " + self.child_case_name, color="orange")
            one_device_case_finish(not int(data[0]))

        try:
            time.sleep(1)
            self.dut.write("\"{}\"".format(self.parent_case_name))
            self.dut.expect("Running " + self.parent_case_name + "...")
        except DUT.ExpectTimeout:
            Utility.console_log("No case detected!", color="orange")
        while not self.finish and not self.force_stop.isSet():
            try:
                self.dut.expect_any((re.compile('\(' + str(self.child_case_index) + '\)\s"(\w+)"'),  # noqa: W605 - regex
                                     get_child_case_name),
                                    (self.WAIT_SIGNAL_PATTERN, device_wait_action),  # wait signal pattern
                                    (self.SEND_SIGNAL_PATTERN, device_send_action),  # send signal pattern
                                    (self.FINISH_PATTERN, handle_device_test_finish),  # test finish pattern
                                    timeout=self.timeout)
            except DUT.ExpectTimeout:
                Utility.console_log("Timeout in expect (%s seconds)" % self.timeout, color="orange")
                one_device_case_finish(False)
                break

    def stop(self):
        self.force_stop.set()


def get_case_info(one_case):
    parent_case = one_case["name"]
    child_case_num = one_case["child case num"]
    return parent_case, child_case_num


def get_dut(duts, env, name, ut_config, app_bin=None):
    if name in duts:
        dut = duts[name]
    else:
        dut = env.get_dut(name, app_path=UT_APP_PATH, app_config_name=ut_config, allow_dut_exception=True)
        duts[name] = dut
        replace_app_bin(dut, "unit-test-app", app_bin)
        dut.start_app()  # download bin to board
    return dut


def run_one_multiple_devices_case(duts, ut_config, env, one_case, app_bin, junit_test_case):
    lock = threading.RLock()
    threads = []
    send_signal_list = []
    result = True
    parent_case, case_num = get_case_info(one_case)

    for i in range(case_num):
        dut = get_dut(duts, env, "dut%d" % i, ut_config, app_bin)
        threads.append(Handler(dut, send_signal_list, lock,
                               parent_case, i, one_case["timeout"]))
    for thread in threads:
        thread.setDaemon(True)
        thread.start()
    output = "Multiple Device Failed\n"
    for thread in threads:
        thread.join()
        result = result and thread.result
        output += thread.output
        if not thread.result:
            [thd.stop() for thd in threads]

    if not result:
        junit_test_case.add_failure_info(output)

    # collect performances from DUTs
    performance_items = []
    for dut_name in duts:
        performance_items.extend(duts[dut_name].get_performance_items())
    TinyFW.JunitReport.update_performance(performance_items)

    return result


@ttfw_idf.idf_unit_test(env_tag="UT_T2_1", junit_report_by_case=True)
def run_multiple_devices_cases(env, extra_data):
    """
     extra_data can be two types of value
     1. as dict:
            e.g.
                {"name":  "gpio master/slave test example",
                "child case num": 2,
                "config": "release",
                "env_tag": "UT_T2_1"}
     2. as list dict:
            e.g.
               [{"name":  "gpio master/slave test example1",
                "child case num": 2,
                "config": "release",
                "env_tag": "UT_T2_1"},
               {"name":  "gpio master/slave test example2",
                "child case num": 2,
                "config": "release",
                "env_tag": "UT_T2_1"}]

    """
    failed_cases = []
    case_config = format_test_case_config(extra_data, env.default_dut_cls.TARGET)
    duts = {}
    for ut_config in case_config:
        Utility.console_log("Running unit test for config: " + ut_config, "O")
        for one_case in case_config[ut_config]:
            log_test_case("multi-device test", one_case, ut_config, )
            result = False
            junit_test_case = TinyFW.JunitReport.create_test_case(format_case_name(one_case))
            try:
                result = run_one_multiple_devices_case(duts, ut_config, env, one_case,
                                                       one_case.get('app_bin'), junit_test_case)
            except TestCaseFailed:
                pass  # result is False, this is handled by the finally block
            except Exception as e:
                handle_unexpected_exception(junit_test_case, e)
            finally:
                if result:
                    Utility.console_log("Success: " + format_case_name(one_case), color="green")
                else:
                    failed_cases.append(format_case_name(one_case))
                    Utility.console_log("Failed: " + format_case_name(one_case), color="red")
                TinyFW.JunitReport.test_case_finish(junit_test_case)
        # close all DUTs when finish running all cases for one config
        for dut in duts:
            env.close_dut(dut)
        duts = {}


def run_one_multiple_stage_case(dut, one_case, junit_test_case):
    reset_dut(dut)

    dut.start_capture_raw_data()

    exception_reset_list = []

    for test_stage in range(one_case["child case num"]):
        # select multi stage test case name
        dut.write("\"{}\"".format(one_case["name"]))
        dut.expect("Running " + one_case["name"] + "...")
        # select test function for current stage
        dut.write(str(test_stage + 1))

        # we want to set this flag in callbacks (inner functions)
        # use list here so we can use append to set this flag
        stage_finish = list()

        def last_stage():
            return test_stage == one_case["child case num"] - 1

        def check_reset():
            if one_case["reset"]:
                assert exception_reset_list  # reboot but no exception/reset logged. should never happen
                result = False
                if len(one_case["reset"]) == len(exception_reset_list):
                    for i, exception in enumerate(exception_reset_list):
                        if not reset_reason_matches(exception, one_case["reset"][i]):
                            break
                    else:
                        result = True
                if not result:
                    err_msg = "Reset Check Failed: \r\n\tExpected: {}\r\n\tGet: {}".format(one_case["reset"],
                                                                                           exception_reset_list)
                    Utility.console_log(err_msg, color="orange")
                    junit_test_case.add_failure_info(err_msg)
            else:
                # we allow omit reset in multi stage cases
                result = True
            return result

        # expect callbacks
        def one_case_finish(result):
            """ one test finished, let expect loop break and log result """
            # handle test finish
            result = result and check_reset()
            output = dut.stop_capture_raw_data()
            if result:
                Utility.console_log("Success: " + format_case_name(one_case), color="green")
            else:
                Utility.console_log("Failed: " + format_case_name(one_case), color="red")
                junit_test_case.add_failure_info(output)
                raise TestCaseFailed()
            stage_finish.append("break")

        def handle_exception_reset(data):
            """
            just append data to exception list.
            exception list will be checked in ``handle_reset_finish``, once reset finished.
            """
            exception_reset_list.append(data[0])

        def handle_test_finish(data):
            """ test finished without reset """
            # in this scenario reset should not happen
            if int(data[1]):
                # case ignored
                Utility.console_log("Ignored: " + format_case_name(one_case), color="orange")
                junit_test_case.add_skipped_info("ignored")
            # only passed in last stage will be regarded as real pass
            if last_stage():
                one_case_finish(not int(data[0]))
            else:
                Utility.console_log("test finished before enter last stage", color="orange")
                one_case_finish(False)

        def handle_next_stage(data):
            """ reboot finished. we goto next stage """
            if last_stage():
                # already last stage, should never goto next stage
                Utility.console_log("didn't finish at last stage", color="orange")
                one_case_finish(False)
            else:
                stage_finish.append("continue")

        while not stage_finish:
            try:
                timeout_value = one_case["timeout"]
                dut.expect_any((RESET_PATTERN, handle_exception_reset),
                               (EXCEPTION_PATTERN, handle_exception_reset),
                               (ABORT_PATTERN, handle_exception_reset),
                               (FINISH_PATTERN, handle_test_finish),
                               (UT_APP_BOOT_UP_DONE, handle_next_stage),
                               timeout=timeout_value)
            except DUT.ExpectTimeout:
                Utility.console_log("Timeout in expect (%s seconds)" % timeout_value, color="orange")
                one_case_finish(False)
                break
        if stage_finish[0] == "break":
            # test breaks on current stage
            break


@ttfw_idf.idf_unit_test(env_tag="UT_T1_1", junit_report_by_case=True)
def run_multiple_stage_cases(env, extra_data):
    """
    extra_data can be 2 types of value
    1. as dict: Mandatory keys: "name" and "child case num", optional keys: "reset" and others
    3. as list of string or dict:
               [case1, case2, case3, {"name": "restart from PRO CPU", "child case num": 2}, ...]

    :param env: test env instance
    :param extra_data: the case name or case list or case dictionary
    :return: None
    """

    case_config = format_test_case_config(extra_data, env.default_dut_cls.TARGET)

    # we don't want stop on failed case (unless some special scenarios we can't handle)
    # this flag is used to log if any of the case failed during executing
    # Before exit test function this flag is used to log if the case fails
    failed_cases = []

    for ut_config in case_config:
        Utility.console_log("Running unit test for config: " + ut_config, "O")
        dut = env.get_dut("unit-test-app", app_path=UT_APP_PATH, app_config_name=ut_config, allow_dut_exception=True)
        if len(case_config[ut_config]) > 0:
            replace_app_bin(dut, "unit-test-app", case_config[ut_config][0].get('app_bin'))
        dut.start_app()

        for one_case in case_config[ut_config]:
            log_test_case("multi-stage test", one_case, ut_config)
            performance_items = []
            junit_test_case = TinyFW.JunitReport.create_test_case(format_case_name(one_case))
            try:
                run_one_multiple_stage_case(dut, one_case, junit_test_case)
                performance_items = dut.get_performance_items()
            except TestCaseFailed:
                failed_cases.append(format_case_name(one_case))
            except Exception as e:
                handle_unexpected_exception(junit_test_case, e)
                failed_cases.append(format_case_name(one_case))
            finally:
                TinyFW.JunitReport.update_performance(performance_items)
                TinyFW.JunitReport.test_case_finish(junit_test_case)
        # close DUT when finish running all cases for one config
        env.close_dut(dut.name)


def detect_update_unit_test_info(env, extra_data, app_bin):
    case_config = format_test_case_config(extra_data, env.default_dut_cls.TARGET)

    for ut_config in case_config:
        dut = env.get_dut("unit-test-app", app_path=UT_APP_PATH, app_config_name=ut_config)
        replace_app_bin(dut, "unit-test-app", app_bin)
        dut.start_app()

        reset_dut(dut)

        # get the list of test cases
        dut.write("")
        dut.expect("Here's the test menu, pick your combo:", timeout=DEFAULT_TIMEOUT)

        def find_update_dic(name, _t, _timeout, child_case_num=None):
            for _case_data in extra_data:
                if _case_data['name'] == name:
                    _case_data['type'] = _t
                    if 'timeout' not in _case_data:
                        _case_data['timeout'] = _timeout
                    if child_case_num:
                        _case_data['child case num'] = child_case_num

        try:
            while True:
                data = dut.expect(TEST_PATTERN, timeout=DEFAULT_TIMEOUT)
                test_case_name = data[1]
                m = re.search(r'\[timeout=(\d+)\]', data[2])
                if m:
                    timeout = int(m.group(1))
                else:
                    timeout = 30
                m = re.search(r'\[multi_stage\]', data[2])
                if m:
                    test_case_type = MULTI_STAGE_ID
                else:
                    m = re.search(r'\[multi_device\]', data[2])
                    if m:
                        test_case_type = MULTI_DEVICE_ID
                    else:
                        test_case_type = SIMPLE_TEST_ID
                        find_update_dic(test_case_name, test_case_type, timeout)
                        if data[3] and re.search(END_LIST_STR, data[3]):
                            break
                        continue
                # find the last submenu item
                data = dut.expect(TEST_SUBMENU_PATTERN, timeout=DEFAULT_TIMEOUT)
                find_update_dic(test_case_name, test_case_type, timeout, child_case_num=int(data[0]))
                if data[1] and re.search(END_LIST_STR, data[1]):
                    break
            # check if the unit test case names are correct, i.e. they could be found in the device
            for _dic in extra_data:
                if 'type' not in _dic:
                    raise ValueError("Unit test \"{}\" doesn't exist in the flashed device!".format(_dic.get('name')))
        except DUT.ExpectTimeout:
            Utility.console_log("Timeout during getting the test list", color="red")
        finally:
            dut.close()

        # These options are the same for all configs, therefore there is no need to continue
        break


if __name__ == '__main__':
    parser = argparse.ArgumentParser()
    parser.add_argument(
        '--repeat', '-r',
        help='Number of repetitions for the test(s). Default is 1.',
        type=int,
        default=1
    )
    parser.add_argument('--env_config_file', '-e',
                        help='test env config file',
                        default=None)
    parser.add_argument('--app_bin', '-b',
                        help='application binary file for flashing the chip',
                        default=None)
    parser.add_argument('test',
                        help='Comma separated list of <option>:<argument> where option can be "name" (default), '
                             '"child case num", "config", "timeout".',
                        nargs='+')
    args = parser.parse_args()
    list_of_dicts = []
    for test in args.test:
        test_args = test.split(r',')
        test_dict = dict()
        for test_item in test_args:
            if len(test_item) == 0:
                continue
            pair = test_item.split(r':', 1)
            if len(pair) == 1 or pair[0] is 'name':
                test_dict['name'] = pair[0]
            elif len(pair) == 2:
                if pair[0] == 'timeout' or pair[0] == 'child case num':
                    test_dict[pair[0]] = int(pair[1])
                else:
                    test_dict[pair[0]] = pair[1]
            else:
                raise ValueError('Error in argument item {} of {}'.format(test_item, test))
        test_dict['app_bin'] = args.app_bin
        list_of_dicts.append(test_dict)

    TinyFW.set_default_config(env_config_file=args.env_config_file)

    env_config = TinyFW.get_default_config()
    env_config['app'] = ttfw_idf.UT
    env_config['dut'] = ttfw_idf.IDFDUT
    env_config['test_suite_name'] = 'unit_test_parsing'
    test_env = Env.Env(**env_config)
    detect_update_unit_test_info(test_env, extra_data=list_of_dicts, app_bin=args.app_bin)

    for index in range(1, args.repeat + 1):
        if args.repeat > 1:
            Utility.console_log("Repetition {}".format(index), color="green")
        for dic in list_of_dicts:
            t = dic.get('type', SIMPLE_TEST_ID)
            if t == SIMPLE_TEST_ID:
                run_unit_test_cases(extra_data=dic)
            elif t == MULTI_STAGE_ID:
                run_multiple_stage_cases(extra_data=dic)
            elif t == MULTI_DEVICE_ID:
                run_multiple_devices_cases(extra_data=dic)
            else:
                raise ValueError('Unknown type {} of {}'.format(t, dic.get('name')))