Failures with Python 3.8 #755

==================================== ERRORS ====================================
_ ERROR at setup of TestCaptureController.test_capturing__retrieve_captured_several_times _

    @pytest.fixture
    def capture_controller():
        """Provides a capture_controller that is already setup and automatically
        performs a teardown afterwards.
        """
        capture_controller = create_capture_controller()
>       setup_capture_controller(capture_controller)

tests/unit/test_capture.py:42: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
tests/unit/test_capture.py:30: in setup_capture_controller
    capture_controller.setup_capture(context)
behave/capture.py:147: in setup_capture
    self.log_capture = LoggingCapture(self.config)
behave/log_capture.py:74: in __init__
    formatter = logging.Formatter(log_format, datefmt)
/usr/lib64/python3.8/logging/__init__.py:576: in __init__
    self._style.validate()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <logging.PercentStyle object at 0x7f4272b01700>

    def validate(self):
        """Validate the input format, ensure it matches the correct style"""
>       if not self.validation_pattern.search(self._fmt):
E       TypeError: expected string or bytes-like object

/usr/lib64/python3.8/logging/__init__.py:428: TypeError
_ ERROR at setup of TestCaptureController.test_capturing__with_several_start_stop_cycles _

    @pytest.fixture
    def capture_controller():
        """Provides a capture_controller that is already setup and automatically
        performs a teardown afterwards.
        """
        capture_controller = create_capture_controller()
>       setup_capture_controller(capture_controller)

tests/unit/test_capture.py:42: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
tests/unit/test_capture.py:30: in setup_capture_controller
    capture_controller.setup_capture(context)
behave/capture.py:147: in setup_capture
    self.log_capture = LoggingCapture(self.config)
behave/log_capture.py:74: in __init__
    formatter = logging.Formatter(log_format, datefmt)
/usr/lib64/python3.8/logging/__init__.py:576: in __init__
    self._style.validate()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <logging.PercentStyle object at 0x7f4271516190>

    def validate(self):
        """Validate the input format, ensure it matches the correct style"""
>       if not self.validation_pattern.search(self._fmt):
E       TypeError: expected string or bytes-like object

/usr/lib64/python3.8/logging/__init__.py:428: TypeError
_______ ERROR at setup of TestCaptureController.test_make_capture_report _______

    @pytest.fixture
    def capture_controller():
        """Provides a capture_controller that is already setup and automatically
        performs a teardown afterwards.
        """
        capture_controller = create_capture_controller()
>       setup_capture_controller(capture_controller)

tests/unit/test_capture.py:42: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
tests/unit/test_capture.py:30: in setup_capture_controller
    capture_controller.setup_capture(context)
behave/capture.py:147: in setup_capture
    self.log_capture = LoggingCapture(self.config)
behave/log_capture.py:74: in __init__
    formatter = logging.Formatter(log_format, datefmt)
/usr/lib64/python3.8/logging/__init__.py:576: in __init__
    self._style.validate()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <logging.PercentStyle object at 0x7f4271520100>

    def validate(self):
        """Validate the input format, ensure it matches the correct style"""
>       if not self.validation_pattern.search(self._fmt):
E       TypeError: expected string or bytes-like object

/usr/lib64/python3.8/logging/__init__.py:428: TypeError
=================================== FAILURES ===================================
____________ TestRunWithPaths.test_loads_hooks_and_step_definitions ____________

self = <test.test_runner.TestRunWithPaths testMethod=test_loads_hooks_and_step_definitions>

    def test_loads_hooks_and_step_definitions(self):
        self.feature_locations.return_value = []
>       self.runner.run_with_paths()

test/test_runner.py:678: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
behave/runner.py:824: in run_with_paths
    return self.run_model()
behave/runner.py:613: in run_model
    self.setup_capture()
behave/runner.py:590: in setup_capture
    self.capture_controller.setup_capture(self.context)
behave/capture.py:147: in setup_capture
    self.log_capture = LoggingCapture(self.config)
behave/log_capture.py:74: in __init__
    formatter = logging.Formatter(log_format, datefmt)
/usr/lib64/python3.8/logging/__init__.py:576: in __init__
    self._style.validate()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <logging.PercentStyle object at 0x7f4272ac0610>

    def validate(self):
        """Validate the input format, ensure it matches the correct style"""
>       if not self.validation_pattern.search(self._fmt):
E       TypeError: expected string or bytes-like object

/usr/lib64/python3.8/logging/__init__.py:428: TypeError
____ TestRunWithPaths.test_parses_feature_files_and_appends_to_feature_list ____

self = <test.test_runner.TestRunWithPaths testMethod=test_parses_feature_files_and_appends_to_feature_list>
abspath = <MagicMock name='abspath' id='139923345085536'>
parse_file = <MagicMock name='parse_file' id='139923345946176'>

    @patch("behave.parser.parse_file")
    @patch("os.path.abspath")
    def test_parses_feature_files_and_appends_to_feature_list(self, abspath,
                                                              parse_file):
        feature_locations = ["one", "two", "three"]
        feature = Mock()
        feature.tags = []
        feature.__iter__ = Mock(return_value=iter([]))
        feature.run.return_value = False
        self.runner.feature_locations.return_value = feature_locations
        abspath.side_effect = lambda x: x.upper()
        self.config.lang = "fritz"
        self.config.format = ["plain"]
        self.config.outputs = [StreamOpener(stream=sys.stdout)]
        self.config.output.encoding = None
        self.config.exclude = lambda s: False
        self.config.junit = False
        self.config.summary = False
        parse_file.return_value = feature
    
>       self.runner.run_with_paths()

test/test_runner.py:717: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
behave/runner.py:824: in run_with_paths
    return self.run_model()
behave/runner.py:613: in run_model
    self.setup_capture()
behave/runner.py:590: in setup_capture
    self.capture_controller.setup_capture(self.context)
behave/capture.py:147: in setup_capture
    self.log_capture = LoggingCapture(self.config)
behave/log_capture.py:74: in __init__
    formatter = logging.Formatter(log_format, datefmt)
/usr/lib64/python3.8/logging/__init__.py:576: in __init__
    self._style.validate()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <logging.PercentStyle object at 0x7f4272a95d00>

    def validate(self):
        """Validate the input format, ensure it matches the correct style"""
>       if not self.validation_pattern.search(self._fmt):
E       TypeError: expected string or bytes-like object

/usr/lib64/python3.8/logging/__init__.py:428: TypeError
__________ TestRunWithPaths.test_runs_before_all_and_after_all_hooks ___________

self = <test.test_runner.TestRunWithPaths testMethod=test_runs_before_all_and_after_all_hooks>

    def test_runs_before_all_and_after_all_hooks(self):
        # Make runner.feature_locations() and runner.run_hook() the same mock so
        # we can make sure things happen in the right order.
        self.runner.feature_locations = self.run_hook
        self.runner.feature_locations.return_value = []
        self.runner.context = Mock()
>       self.runner.run_with_paths()

test/test_runner.py:689: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
behave/runner.py:824: in run_with_paths
    return self.run_model()
behave/runner.py:613: in run_model
    self.setup_capture()
behave/runner.py:590: in setup_capture
    self.capture_controller.setup_capture(self.context)
behave/capture.py:147: in setup_capture
    self.log_capture = LoggingCapture(self.config)
behave/log_capture.py:74: in __init__
    formatter = logging.Formatter(log_format, datefmt)
/usr/lib64/python3.8/logging/__init__.py:576: in __init__
    self._style.validate()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <logging.PercentStyle object at 0x7f4271395e20>

    def validate(self):
        """Validate the input format, ensure it matches the correct style"""
>       if not self.validation_pattern.search(self._fmt):
E       TypeError: expected string or bytes-like object

/usr/lib64/python3.8/logging/__init__.py:428: TypeError
______________________ TestCaptureController.test_basics _______________________

self = <tests.unit.test_capture.TestCaptureController object at 0x7f4271439880>

    def test_basics(self):
        capture_controller = create_capture_controller()
        context = Mock()
        context.aborted = False
        context.config = capture_controller.config
    
>       capture_controller.setup_capture(context)

tests/unit/test_capture.py:226: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
behave/capture.py:147: in setup_capture
    self.log_capture = LoggingCapture(self.config)
behave/log_capture.py:74: in __init__
    formatter = logging.Formatter(log_format, datefmt)
/usr/lib64/python3.8/logging/__init__.py:576: in __init__
    self._style.validate()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <logging.PercentStyle object at 0x7f42719918b0>

    def validate(self):
        """Validate the input format, ensure it matches the correct style"""
>       if not self.validation_pattern.search(self._fmt):
E       TypeError: expected string or bytes-like object

/usr/lib64/python3.8/logging/__init__.py:428: TypeError