289 lines
13 KiB
Python
289 lines
13 KiB
Python
# Need Python 3 string formatting functions
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from __future__ import print_function
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import os
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import re
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import logging
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from threading import Thread
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import ttfw_idf
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LOG_LEVEL = logging.DEBUG
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LOGGER_NAME = "modbus_test"
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# Allowed parameter reads
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TEST_READ_MIN_COUNT = 10 # Minimum number of correct readings
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TEST_READ_MAX_ERR_COUNT = 2 # Maximum allowed read errors during initialization
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TEST_THREAD_EXPECT_TIMEOUT = 120 # Test theread expect timeout in seconds
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TEST_THREAD_JOIN_TIMEOUT = 180 # Test theread join timeout in seconds
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# Test definitions
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TEST_MASTER_RTU = 'master_rtu'
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TEST_SLAVE_RTU = 'slave_rtu'
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TEST_MASTER_ASCII = 'master_ascii'
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TEST_SLAVE_ASCII = 'slave_ascii'
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# Define tuple of strings to expect for each DUT.
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#
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master_expect = ("MASTER_TEST: Modbus master stack initialized...", "MASTER_TEST: Start modbus test...", "MASTER_TEST: Destroy master...")
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slave_expect = ("SLAVE_TEST: Modbus slave stack initialized.", "SLAVE_TEST: Start modbus test...", "SLAVE_TEST: Modbus controller destroyed.")
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# The dictionary for expected values in listing
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expect_dict_master_ok = {"START": (),
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"READ_PAR_OK": (),
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"ALARM_MSG": (u'7',)}
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expect_dict_master_err = {"READ_PAR_ERR": (u'263', u'ESP_ERR_TIMEOUT'),
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"READ_STK_ERR": (u'107', u'ESP_ERR_TIMEOUT')}
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# The dictionary for regular expression patterns to check in listing
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pattern_dict_master_ok = {"START": (r'.*I \([0-9]+\) MASTER_TEST: Start modbus test...'),
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"READ_PAR_OK": (r'.*I\s\([0-9]+\) MASTER_TEST: Characteristic #[0-9]+ [a-zA-Z0-9_]+'
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r'\s\([a-zA-Z\%\/]+\) value = [a-zA-Z0-9\.]+ \(0x[a-zA-Z0-9]+\) read successful.'),
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"ALARM_MSG": (r'.*I \([0-9]*\) MASTER_TEST: Alarm triggered by cid #([0-9]+).')}
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pattern_dict_master_err = {"READ_PAR_ERR_TOUT": (r'.*E \([0-9]+\) MASTER_TEST: Characteristic #[0-9]+'
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r'\s\([a-zA-Z0-9_]+\) read fail, err = [0-9]+ \([_A-Z]+\).'),
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"READ_STK_ERR_TOUT": (r'.*E \([0-9]+\) MB_CONTROLLER_MASTER: [a-zA-Z0-9_]+\([0-9]+\):\s'
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r'SERIAL master get parameter failure error=\(0x([a-zA-Z0-9]+)\) \(([_A-Z]+)\).')}
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# The dictionary for expected values in listing
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expect_dict_slave_ok = {"START": (),
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"READ_PAR_OK": (),
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"DESTROY": ()}
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# The dictionary for regular expression patterns to check in listing
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pattern_dict_slave_ok = {"START": (r'.*I \([0-9]+\) SLAVE_TEST: Start modbus test...'),
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"READ_PAR_OK": (r'.*I\s\([0-9]+\) SLAVE_TEST: [A-Z]+ READ \([a-zA-Z0-9_]+ us\),\s'
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r'ADDR:[0-9]+, TYPE:[0-9]+, INST_ADDR:0x[a-zA-Z0-9]+, SIZE:[0-9]+'),
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"DESTROY": (r'.*I\s\([0-9]+\) SLAVE_TEST: Modbus controller destroyed.')}
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logger = logging.getLogger(LOGGER_NAME)
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class DutTestThread(Thread):
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def __init__(self, dut=None, name=None, expect=None):
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""" Initialize the thread parameters
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"""
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self.tname = name
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self.dut = dut
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self.expected = expect
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self.result = False
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self.data = None
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super(DutTestThread, self).__init__()
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def run(self):
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""" The function implements thread functionality
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"""
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# Must reset again as flashing during start_app will reset multiple times, causing unexpected results
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self.dut.reset()
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# Capture output from the DUT
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self.dut.start_capture_raw_data()
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# Check expected strings in the listing
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for string in self.expected:
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self.dut.expect(string, TEST_THREAD_EXPECT_TIMEOUT)
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# Check DUT exceptions
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dut_exceptions = self.dut.get_exceptions()
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if "Guru Meditation Error:" in dut_exceptions:
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raise Exception("%s generated an exception: %s\n" % (str(self.dut), dut_exceptions))
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# Mark thread has run to completion without any exceptions
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self.data = self.dut.stop_capture_raw_data()
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self.result = True
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def test_filter_output(data=None, start_pattern=None, end_pattern=None):
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"""Use patters to filter output
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"""
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start_index = str(data).find(start_pattern)
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end_index = str(data).find(end_pattern)
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logger.debug("Listing start index= %d, end=%d" % (start_index, end_index))
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if start_index == -1 or end_index == -1:
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return data
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return data[start_index:end_index + len(end_pattern)]
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def test_expect_re(data, pattern):
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"""
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Check if re pattern is matched in data cache
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:param data: data to process
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:param pattern: compiled RegEx pattern
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:return: match groups if match succeed otherwise None
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"""
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ret = None
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if isinstance(pattern, type(u'')):
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pattern = pattern.encode('utf-8')
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regex = re.compile(pattern)
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if isinstance(data, type(u'')):
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data = data.encode('utf-8')
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match = regex.search(data)
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if match:
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ret = tuple(None if x is None else x.decode() for x in match.groups())
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index = match.end()
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else:
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index = None
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return ret, index
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def test_check_output(data=None, check_dict=None, expect_dict=None):
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""" Check output for the test
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Check log using regular expressions:
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"""
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global logger
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match_count = 0
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index = 0
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data_lines = data.splitlines()
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for key, pattern in check_dict.items():
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if key not in expect_dict:
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break
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# Check pattern in the each line
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for line in data_lines:
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group, index = test_expect_re(line, pattern)
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if index is not None:
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logger.debug("Found key{%s}=%s, line: \n%s" % (key, group, line))
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if expect_dict[key] == group:
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logger.debug("The result is correct for the key:%s, expected:%s == returned:%s" % (key, str(expect_dict[key]), str(group)))
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match_count += 1
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return match_count
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def test_check_mode(dut=None, mode_str=None, value=None):
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""" Check communication mode for dut
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"""
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global logger
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try:
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opt = dut.app.get_sdkconfig()[mode_str]
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logger.info("%s {%s} = %s.\n" % (str(dut), mode_str, opt))
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return value == opt
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except Exception:
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logger.info('ENV_TEST_FAILURE: %s: Cannot find option %s in sdkconfig.' % (str(dut), mode_str))
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return False
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@ttfw_idf.idf_example_test(env_tag='UT_T2_RS485')
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def test_modbus_communication(env, comm_mode):
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global logger
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# Get device under test. "dut1 - master", "dut2 - slave" must be properly connected through RS485 interface driver
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dut_master = env.get_dut("modbus_master", "examples/protocols/modbus/serial/mb_master", dut_class=ttfw_idf.ESP32DUT)
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dut_slave = env.get_dut("modbus_slave", "examples/protocols/modbus/serial/mb_slave", dut_class=ttfw_idf.ESP32DUT)
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try:
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logger.debug("Environment vars: %s\r\n" % os.environ)
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logger.debug("DUT slave sdkconfig: %s\r\n" % dut_slave.app.get_sdkconfig())
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logger.debug("DUT master sdkconfig: %s\r\n" % dut_master.app.get_sdkconfig())
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# Check Kconfig configuration options for each built example
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if test_check_mode(dut_master, "CONFIG_MB_COMM_MODE_ASCII", "y") and test_check_mode(dut_slave, "CONFIG_MB_COMM_MODE_ASCII", "y"):
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logger.info("ENV_TEST_INFO: Modbus ASCII test mode selected in the configuration. \n")
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slave_name = TEST_SLAVE_ASCII
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master_name = TEST_MASTER_ASCII
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elif test_check_mode(dut_master, "CONFIG_MB_COMM_MODE_RTU", "y") and test_check_mode(dut_slave, "CONFIG_MB_COMM_MODE_RTU", "y"):
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logger.info("ENV_TEST_INFO: Modbus RTU test mode selected in the configuration. \n")
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slave_name = TEST_SLAVE_RTU
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master_name = TEST_MASTER_RTU
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else:
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logger.error("ENV_TEST_FAILURE: Communication mode in master and slave configuration don't match.\n")
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raise Exception("ENV_TEST_FAILURE: Communication mode in master and slave configuration don't match.\n")
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# Check if slave address for example application is default one to be able to communicate
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if not test_check_mode(dut_slave, "CONFIG_MB_SLAVE_ADDR", "1"):
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logger.error("ENV_TEST_FAILURE: Slave address option is incorrect.\n")
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raise Exception("ENV_TEST_FAILURE: Slave address option is incorrect.\n")
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# Flash app onto each DUT
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dut_master.start_app()
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dut_slave.start_app()
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# Create thread for each dut
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dut_master_thread = DutTestThread(dut=dut_master, name=master_name, expect=master_expect)
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dut_slave_thread = DutTestThread(dut=dut_slave, name=slave_name, expect=slave_expect)
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# Start each thread
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dut_slave_thread.start()
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dut_master_thread.start()
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# Wait for threads to complete
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dut_slave_thread.join(timeout=TEST_THREAD_JOIN_TIMEOUT)
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dut_master_thread.join(timeout=TEST_THREAD_JOIN_TIMEOUT)
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if dut_slave_thread.isAlive():
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logger.error("ENV_TEST_FAILURE: The thread %s is not completed successfully after %d seconds.\n" %
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(dut_slave_thread.tname, TEST_THREAD_JOIN_TIMEOUT))
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raise Exception("ENV_TEST_FAILURE: The thread %s is not completed successfully after %d seconds.\n" %
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(dut_slave_thread.tname, TEST_THREAD_JOIN_TIMEOUT))
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if dut_master_thread.isAlive():
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logger.error("ENV_TEST_FAILURE: The thread %s is not completed successfully after %d seconds.\n" %
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(dut_master_thread.tname, TEST_THREAD_JOIN_TIMEOUT))
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raise Exception("ENV_TEST_FAILURE: The thread %s is not completed successfully after %d seconds.\n" %
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(dut_master_thread.tname, TEST_THREAD_JOIN_TIMEOUT))
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finally:
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dut_master.close()
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dut_slave.close()
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# Check if test threads completed successfully and captured data
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if not dut_slave_thread.result or dut_slave_thread.data is None:
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logger.error("The thread %s was not run successfully." % dut_slave_thread.tname)
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raise Exception("The thread %s was not run successfully." % dut_slave_thread.tname)
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if not dut_master_thread.result or dut_master_thread.data is None:
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logger.error("The thread %s was not run successfully." % dut_slave_thread.tname)
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raise Exception("The thread %s was not run successfully." % dut_master_thread.tname)
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# Filter output to get test messages
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master_output = test_filter_output(dut_master_thread.data, master_expect[0], master_expect[len(master_expect) - 1])
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if master_output is not None:
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logger.info("The data for master thread is captured.")
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logger.debug(master_output)
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slave_output = test_filter_output(dut_slave_thread.data, slave_expect[0], slave_expect[len(slave_expect) - 1])
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if slave_output is not None:
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logger.info("The data for slave thread is captured.")
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logger.debug(slave_output)
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# Check if parameters are read correctly by master
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match_count = test_check_output(master_output, pattern_dict_master_ok, expect_dict_master_ok)
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if match_count < TEST_READ_MIN_COUNT:
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logger.error("There are errors reading parameters from %s, %d" % (dut_master_thread.tname, match_count))
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raise Exception("There are errors reading parameters from %s, %d" % (dut_master_thread.tname, match_count))
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logger.info("OK pattern test for %s, match_count=%d." % (dut_master_thread.tname, match_count))
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# If the test completed successfully (alarm triggered) but there are some errors during reading of parameters
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match_count = test_check_output(master_output, pattern_dict_master_err, expect_dict_master_err)
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if match_count > TEST_READ_MAX_ERR_COUNT:
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logger.error("There are errors reading parameters from %s, %d" % (dut_master_thread.tname, match_count))
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raise Exception("There are errors reading parameters from %s, %d" % (dut_master_thread.tname, match_count))
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logger.info("ERROR pattern test for %s, match_count=%d." % (dut_master_thread.tname, match_count))
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match_count = test_check_output(slave_output, pattern_dict_slave_ok, expect_dict_slave_ok)
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if match_count < TEST_READ_MIN_COUNT:
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logger.error("There are errors reading parameters from %s, %d" % (dut_slave_thread.tname, match_count))
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raise Exception("There are errors reading parameters from %s, %d" % (dut_slave_thread.tname, match_count))
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logger.info("OK pattern test for %s, match_count=%d." % (dut_slave_thread.tname, match_count))
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if __name__ == '__main__':
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logger = logging.getLogger(LOGGER_NAME)
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# create file handler which logs even debug messages
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fh = logging.FileHandler('modbus_test.log')
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fh.setLevel(logging.DEBUG)
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logger.setLevel(logging.DEBUG)
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# create console handler
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ch = logging.StreamHandler()
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ch.setLevel(logging.INFO)
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# set format of output for both handlers
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formatter = logging.Formatter('%(levelname)s:%(message)s')
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ch.setFormatter(formatter)
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fh.setFormatter(formatter)
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logger.addHandler(fh)
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logger.addHandler(ch)
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logger.info("Start script %s." % os.path.basename(__file__))
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print("Logging file name: %s" % logger.handlers[0].baseFilename)
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test_modbus_communication()
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logging.shutdown()
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