def run(filename,
suite,
as_str=None,
scenario=r'.*',
verbose=False,
show_all_missing=True,
**kwargs): # NOQA
"""Parse file and run tests on given suite.
:param str filename: file name
:param unittest.TestCase suite: TestCase instance
:param string as_str: None to use file or a string containing the feature to parse
:param string scenario: a regex pattern to match the scenario to run
:param boolean verbose: be verbose
:param boolean show_all_missing: show all missing steps
"""
formatter = kwargs.get('formatter', None)
if verbose and not formatter:
if has_color_support():
formatter = ColorTextFormatter()
else:
formatter = PlainTextFormatter()
kwargs['formatter'] = formatter
kwargs['show_all_missing'] = show_all_missing
parser = Parser()
ast = parser.parse_file(filename, scenario=scenario) if as_str is None \
else parser.parse_as_str(filename, as_str, scenario=scenario)
return ast.evaluate(suite, **kwargs)
def test_should_report_on_all_failing_scenarios(self):
self._add_failure_pattern = re.compile('Scenario: Add two numbers\n\s*Then the result should be "120" on the screen\n\s*.*AssertionError:\s*70 != 120', re.DOTALL)
self._substract_failure_pattern = re.compile('Scenario: Subtract two numbers\n\s*Then the result should be "80" on the screen\n\s*.*AssertionError:\s*70 != 80', re.DOTALL)
self._multiply_failure_pattern = re.compile('Scenario: Multiply two numbers\n\s*Then the result should be "12" on the screen\n\s*.*AssertionError:\s*3 != 12', re.DOTALL)
self._division_failure_pattern = re.compile('Scenario: Divide two numbers\n\s*Then the result should be "4" on the screen\n\s*.*AssertionError:\s*2 != 4', re.DOTALL)
filename = os.path.join(pwd, 'features/info_on_all_failing_scenarios.feature')
ast = Parser().parse_file(filename)
ast.evaluate(self)
def step_Morelia_evaluates_the_file(self):
self.diagnostic = None
try:
language = self._get_language()
p = Parser(language=language)
self.file_contents.replace('\\#', '#') # note - this is how to unescape characters - DIY
prefix = u'{}: Sample\n{}: Sample\n'.format(self.feature_keyword, self.scenario_keyword)
p.parse_features(prefix + self.file_contents).evaluate(self)
except (MissingStepError, AssertionError) as e:
self.diagnostic = str(e)
def step_Morelia_evaluates_the_file(self):
self.diagnostic = None
try:
p = Parser()
self.file_contents.replace(
"\\#", "#") # note - this is how to unescape characters - DIY
prefix = "Feature: Sample\nScenario: Sample\n"
feature = p.parse_features(prefix + self.file_contents)
execute_script(feature, self)
except (MissingStepError, AssertionError) as e:
self.diagnostic = str(e)
def step_Morelia_evaluates_the_file(self):
self.diagnostic = None
try:
p = Parser()
self.file_contents.replace(
"\\#", "#"
) # note - this is how to unescape characters - DIY
prefix = "Feature: Sample\nScenario: Sample\n"
feature = p.parse_features(prefix + self.file_contents)
execute_script(feature, self)
except (MissingStepError, AssertionError) as e:
self.diagnostic = str(e)
def step_a_file_contains_statements_produce_diagnostics_(self, statements, diagnostics):
r'a file contains (.+), it produces (.+)'
try:
statements = statements.replace('\\n', '\n')
statements = statements.replace('\\', '')
language = self._get_language()
p = Parser(language=language).parse_features(statements)
p.evaluate(self)
raise Exception('we expect syntax errors here') # pragma: nocover
except (SyntaxError, AssertionError) as e:
e = e.args[0]
self.assert_regex_contains(re.escape(diagnostics), e)
def step_Morelia_evaluates_the_file(self):
self.diagnostic = None
try:
language = self._get_language()
p = Parser(language=language)
self.file_contents.replace(
'\\#', '#') # note - this is how to unescape characters - DIY
prefix = u'{}: Sample\n{}: Sample\n'.format(
self.feature_keyword, self.scenario_keyword)
p.parse_features(prefix + self.file_contents).evaluate(self)
except (MissingStepError, AssertionError) as e:
self.diagnostic = str(e)
def step_a_file_contains_statements_produce_diagnostics_(
self, statements, diagnostics):
r'a file contains (.+), it produces (.+)'
try:
statements = statements.replace('\\n', '\n')
statements = statements.replace('\\', '')
language = self._get_language()
p = Parser(language=language).parse_features(statements)
p.evaluate(self)
raise Exception('we expect syntax errors here') # pragma: nocover
except (SyntaxError, AssertionError) as e:
e = e.args[0]
self.assert_regex_contains(re.escape(diagnostics), e)
def test_fail_informatively_on_bad_scenario_regex(self):
filename = os.path.join(pwd, 'features/scenario_matching.feature')
self._matching_pattern = '\\'
with self.assertRaises(SyntaxError):
self._ast = Parser().parse_file(filename,
scenario=self._matching_pattern)
def run(filename,
suite,
as_str=None,
scenario=r".*",
verbose=False,
show_all_missing=True,
**kwargs): # NOQA
"""Parse file and run tests on given suite.
:param str filename: file name
:param unittest.TestCase suite: TestCase instance
:param string as_str: None to use file or a string containing the feature to parse
:param string scenario: a regex pattern to match the scenario to run
:param boolean verbose: be verbose
:param boolean show_all_missing: show all missing steps
"""
formatter = kwargs.get("formatter", None)
if verbose and not formatter:
if has_color_support():
formatter = ColorTextFormatter()
else:
formatter = PlainTextFormatter()
kwargs["formatter"] = formatter
kwargs["show_all_missing"] = show_all_missing
if as_str is None:
source = File(filename)
else:
source = Text(as_str, filename)
feature = Parser().parse_features(source)
return execute_script(feature, suite, scenario=scenario, **kwargs)
def test_record_filename(self):
filename = features_dir / "morelia.feature"
feature = Parser().parse_features(File(filename))
assert feature.__class__ == Feature
assert str(filename) == feature.filename
step = feature.steps[3].steps[1]
assert str(filename) == step.get_filename()
def test_deal_with_pesky_carriage_returns(
self): # because Morse Code will live forever!
source = "Given a string with spacies and \r\n another string "
steps = Parser().parse_feature(source)
step = steps[0]
assert isinstance(step, Given)
assert step.predicate == "a string with spacies and\nanother string"
def test_step_multiline_predicate(self):
feature = '%s multiline predicate' % self.when_keyword
language = self._get_language()
steps = Parser(language=language).parse_feature(feature)
matcher = self._get_default_machers()
visitor = TestVisitor(self, matcher, NullFormatter())
visitor.visit(steps[0])
def test_given_a_string_with_given_in_it(self):
source = "Given a string with Given in it \nAnd another string"
steps = Parser().parse_feature(source) # ^ note the spacies
step = steps[0]
assert isinstance(step, Given)
assert (step.predicate == "a string with Given in it"
) # <-- note spacies are gone
def test_two_dimensional_table_reconstruction(self):
language = self._get_language()
p = Parser(language=language).parse_features(
self.assemble_short_scene_table())
step = p.steps[0].steps[0].steps[0]
self.assertEqual(step.keyword + ': ' + step.predicate,
step.reconstruction().strip())
def test_language_directive(self):
input = '# language: pl\n%s: prevent wild animals from eating us' % self.feature_keyword
steps = Parser().parse_feature(input)
step = steps[0]
assert step.__class__ == Feature
self.assertEqual(step.keyword, self.feature_keyword)
self.assertEqual(step.predicate, 'prevent wild animals from eating us')
def test___scenario(self):
input = ' %s: with spacies' % self.scenario_keyword
language = self._get_language()
steps = Parser(language=language).parse_feature(input)
step = steps[0]
assert step.__class__ == Scenario
self.assertEqual(step.keyword, self.scenario_keyword)
self.assertEqual(step.predicate, 'with spacies')
def test_feature(self):
language = self._get_language()
input = '%s: prevent wild animals from eating us' % self.feature_keyword
steps = Parser(language=language).parse_feature(input)
step = steps[0]
assert step.__class__ == Feature
self.assertEqual(step.keyword, self.feature_keyword)
self.assertEqual(step.predicate, 'prevent wild animals from eating us')
def test_given_a_string_with_a_line_breaker_followed_by_a_keyword(self):
source = "Given a string \\\n And another string"
steps = Parser().parse_feature(source)
assert 1 == len(steps)
step = steps[0]
assert isinstance(step, Given)
assert step.source == "Given a string \\\n And another string"
assert step.predicate == "a string \\\n And another string"
def test_feature_with_lone_comment(self):
input = 'i be a newbie feature'
language = self._get_language()
p = Parser(language=language)
try:
p.parse_feature(input)
assert False # should fail! # pragma: nocover
except SyntaxError as e:
e = e.args[0]
try:
feature_name = TRANSLATIONS[language].get('feature', self.feature_keyword)
except KeyError:
feature_name = self.feature_keyword
else:
feature_name = feature_name.replace('|', ' or ')
self.assert_regex_contains(r'feature files must start with a %s' % feature_name, e)
def test_record_filename(self):
language = self._get_language()
filename = pwd + '/features/morelia%s.feature' % (language or '')
thang = Parser(language=language).parse_file(filename)
feature = thang.steps[0]
assert feature.__class__ == Feature
assert feature.filename == filename
step = feature.steps[3].steps[1]
assert filename == step.get_filename()
def test_two_dimensional_table(self):
global elements, factions
elements = []
factions = []
language = self._get_language()
Parser(language=language).parse_features(
self.assemble_short_scene_table()).evaluate(self)
self.assertEqual([['Pangolin', 'Glyptodon'], ['Pangea', 'Laurasia']],
[factions, elements])
def test_given_a_broken_string_with_excess_spacies(self):
input = '%s a string with spacies and \n another string ' % self.given_keyword
language = self._get_language()
steps = Parser(language=language).parse_feature(input)
step = steps[0]
assert step.__class__ == Given
self.assertEqual(step.keyword, self.given_keyword)
self.assertEqual(step.predicate,
'a string with spacies and\nanother string')
def test_should_only_run_matching_scenarios(self):
filename = os.path.join(pwd, 'features/scenario_matching.feature')
self._matching_pattern = r'Scenario Matches [12]'
self._ast = Parser().parse_file(filename,
scenario=self._matching_pattern)
scenario_matcher_re = re.compile(self._matching_pattern)
for included_scenario in self._ast.steps[0].steps:
self.assertIsNotNone(
scenario_matcher_re.match(included_scenario.predicate))
def test_deal_with_pesky_carriage_returns(
self): # because Morse Code will live forever!
input = '%s a string with spacies and \r\n another string ' % self.given_keyword
language = self._get_language()
steps = Parser(language=language).parse_feature(input)
step = steps[0]
assert step.__class__ == Given
self.assertEqual(step.keyword, self.given_keyword)
self.assertEqual(step.predicate,
'a string with spacies and\nanother string')
def test_file_without_feature_defined(self):
input = 'i be a newbie feature'
language = self._get_language()
p = Parser(language=language)
try:
p.parse_feature(input)
assert False # should fail! # pragma: nocover
except SyntaxError as e:
e = e.args[0]
try:
feature_name = TRANSLATIONS[language].get(
'feature', self.feature_keyword)
except KeyError:
feature_name = self.feature_keyword
else:
feature_name = feature_name.replace('|', ' or ')
self.assert_regex_contains(
r'feature files must start with a %s' % feature_name, e)
def test_scenario_with_steps_is_parsed(self):
scenario = self.__sample_scenario()
steps = Parser().parse_feature(scenario)
scenario, given_step, and_step, when_step, then_step = steps
assert scenario.predicate == "See all vendors"
assert (given_step.predicate ==
"I am logged in as a user in the administrator role")
assert and_step.predicate == "There are 3 vendors"
assert when_step.predicate == "I go to the manage vendors page"
assert then_step.predicate == "I should see the first 3 vendor names"
def test_feature_with_scenario(self):
source = """Feature: Civi-lie-zation
Scenario: starz upon tharz bucks"""
steps = Parser().parse_feature(source)
step = steps[0]
assert isinstance(step, Feature)
assert step.predicate == "Civi-lie-zation"
step = steps[1]
assert isinstance(step, Scenario)
assert step.predicate == "starz upon tharz bucks"
def test_feature_with_long_comment(self): # ERGO how to detect shadowed test cases??
language = self._get_language()
p = Parser(language=language)
input = '''%s: The Sacred Giant Mosquito of the Andes
# at http://www.onagocag.com/nazbird.jpg
so pay no attention to the skeptics!''' % self.feature_keyword
try:
p.parse_feature(input)
assert False # should raise a SyntaxError # pragma: nocover
except SyntaxError as e:
self.assert_regex_contains('linefeed in comment', str(e))
self.assert_regex_contains('line 2', str(e))
steps = p.steps
assert steps[0].__class__ == Feature
step = steps[1]
assert step.__class__ == Comment
self.assertEqual(step.keyword, '#')
def test_feature_with_long_comment(
self): # ERGO how to detect shadowed test cases??
language = self._get_language()
p = Parser(language=language)
input = '''%s: The Sacred Giant Mosquito of the Andes
# at http://www.onagocag.com/nazbird.jpg
so pay no attention to the skeptics!''' % self.feature_keyword
try:
p.parse_feature(input)
assert False # should raise a SyntaxError # pragma: nocover
except SyntaxError as e:
self.assert_regex_contains('linefeed in comment', str(e))
self.assert_regex_contains('line 2', str(e))
steps = p.steps
assert steps[0].__class__ == Feature
step = steps[1]
assert step.__class__ == Comment
self.assertEqual(step.keyword, '#')
def test_given_a_string_with_a_line_breaker_followed_by_a_keyword(self):
input = '%(given)s a string \\\n And another string' % {
'given': self.given_keyword,
'and': self.and_keyword,
}
language = self._get_language()
steps = Parser(language=language).parse_feature(input)
assert 1 == len(steps)
step = steps[0]
assert step.__class__ == Given
self.assertEqual(step.keyword, self.given_keyword)
self.assertEqual(step.predicate, 'a string \\\n And another string')
def test_another_two_dimensional_table(self):
global crunks, zones
crunks = []
zones = []
scene = self.assemble_scene_table_source(
'Step my milkshake brings all the boys to the yard\n')
language = self._get_language()
Parser(language=language).parse_features(scene).evaluate(self)
self.assertEqual(['work', 'mall', 'jail', 'work', 'mall', 'jail'],
crunks)
self.assertEqual(
['beach', 'beach', 'beach', 'hotel', 'hotel', 'hotel'], zones)
def step_a_file_contains_statements_produce_diagnostics_(
self, statements, diagnostics):
r"a file contains (.+), it produces (.+)"
try:
statements = statements.replace("\\n", "\n")
statements = statements.replace("\\", "")
feature = Parser().parse_features(statements)
execute_script(feature, self)
raise Exception("we expect syntax errors here") # pragma: nocover
except (SyntaxError, AssertionError) as e:
e = e.args[0]
self.assert_regex_contains(re.escape(diagnostics), e)
def test_given_a_string_with_given_in_it(self):
input = '%(given)s a string with Given in it \n%(and)s another string' % {
'given': self.given_keyword,
'and': self.and_keyword,
}
language = self._get_language()
steps = Parser(language=language).parse_feature(
input) # ^ note the spacies
step = steps[0]
assert step.__class__ == Given
self.assertEqual(step.keyword, self.given_keyword)
self.assertEqual(
step.predicate,
'a string with Given in it') # <-- note spacies are gone
def test_format_faults_like_python_errors(self):
language = self._get_language()
filename = pwd + '/features/morelia%s.feature' % (language or '')
thang = Parser(language=language).parse_file(filename)
step = thang.steps[0].steps[3].steps[1]
assert filename == step.get_filename()
omen = 'The Alpine glaciers move'
diagnostic = step.format_fault(omen)
parent_reconstruction = step.parent.reconstruction().strip('\n')
reconstruction = step.reconstruction()
expect = '\n File "%s", line %s, in %s\n %s\n%s' % \
(step.get_filename(), step.line_number, parent_reconstruction, reconstruction, omen)
assert expect == diagnostic
def test_feature_with_scenario(self):
input = '''%(feature)s: Civi-lie-zation
%(scenario)s: starz upon tharz bucks''' % {
'feature': self.feature_keyword,
'scenario': self.scenario_keyword,
}
language = self._get_language()
steps = Parser(language=language).parse_feature(input)
step = steps[0]
assert step.__class__ == Feature
self.assertEqual(step.keyword, self.feature_keyword)
self.assertEqual(step.predicate, 'Civi-lie-zation')
step = steps[1]
assert step.__class__ == Scenario
self.assertEqual(step.keyword, self.scenario_keyword)
self.assertEqual(step.predicate, 'starz upon tharz bucks')
def test_labels(self):
filename = os.path.join(pwd, 'features/labels.feature')
ast = Parser().parse_file(filename)
ast.evaluate(self, show_all_missing=True)
def test_many_test_methods(self):
"""Check setUp/tearDown when many tests in one TestCase."""
filename = os.path.join(pwd, 'features/setupteardown.feature')
ast = Parser().parse_file(filename)
ast.evaluate(self, show_all_missing=True)
def test_setup_teardown(self):
"""Check for multiple setUp/tearDown calls."""
filename = os.path.join(pwd, 'features/setupteardown.feature')
ast = Parser().parse_file(filename)
ast.evaluate(self, show_all_missing=True)
def test_docstrings_should_be_passed_as_text_to_step(self):
filename = os.path.join(pwd, 'features/docstrings.feature')
ast = Parser().parse_file(filename)
ast.evaluate(self, show_all_missing=True)
class InfoOnAllFailingScenariosTest(TestCase):
def test_should_report_on_all_failing_scenarios(self):
self._add_failure_pattern = re.compile('Scenario: Add two numbers\n\s*Then the result should be "120" on the screen\n\s*.*AssertionError:\s*70 != 120', re.DOTALL)
self._substract_failure_pattern = re.compile('Scenario: Subtract two numbers\n\s*Then the result should be "80" on the screen\n\s*.*AssertionError:\s*70 != 80', re.DOTALL)
self._multiply_failure_pattern = re.compile('Scenario: Multiply two numbers\n\s*Then the result should be "12" on the screen\n\s*.*AssertionError:\s*3 != 12', re.DOTALL)
self._division_failure_pattern = re.compile('Scenario: Divide two numbers\n\s*Then the result should be "4" on the screen\n\s*.*AssertionError:\s*2 != 4', re.DOTALL)
filename = os.path.join(pwd, 'features/info_on_all_failing_scenarios.feature')
ast = Parser().parse_file(filename)
ast.evaluate(self)
def step_feature_with_number_scenarios_has_been_described_in_file(self, feature_file):
r'that feature with 4 scenarios has been described in file "([^"]+)"'
filename = os.path.join(pwd, 'features/{}'.format(feature_file))
self._ast = Parser().parse_file(filename)
def step_that_test_case_passing_number_and_number_scenario_and_failing_number_and_number_has_been_written(self):
r'that test case passing 1 and 3 scenario and failing 2 and 4 has been written'
class _EvaluatedTestCase(SampleTestCaseMixIn, TestCase):
def step_I_press_subtract(self):
pass
def step_I_press_divide(self):
pass
self._evaluated_test_case = _EvaluatedTestCase
self._failing_patterns = [
self._substract_failure_pattern,
self._division_failure_pattern
]
def step_that_test_case_failing_all_scenarios_been_written(self):
r'that test case failing all scenarios been written'
class _EvaluatedTestCase(SampleTestCaseMixIn, TestCase):
def step_I_press_add(self):
pass
def step_I_press_subtract(self):
pass
def step_I_press_multiply(self):
pass
def step_I_press_divide(self):
pass
self._evaluated_test_case = _EvaluatedTestCase
self._failing_patterns = [
self._add_failure_pattern,
self._substract_failure_pattern,
self._multiply_failure_pattern,
self._division_failure_pattern
]
def step_that_test_case_passing_number_number_and_number_scenario_and_failing_number_has_been_written(self):
r'that test case passing 2, 3 and 4 scenario and failing 1 has been written'
class _EvaluatedTestCase(SampleTestCaseMixIn, TestCase):
def step_I_press_add(self):
pass
self._evaluated_test_case = _EvaluatedTestCase
self._failing_patterns = [
self._add_failure_pattern,
]
def step_that_test_case_passing_all_scenarios_been_written(self):
r'that test case passing all scenarios been written'
class _EvaluatedTestCase(SampleTestCaseMixIn, TestCase):
pass
self._evaluated_test_case = _EvaluatedTestCase
def step_that_test_case_failing_number_number_and_number_scenario_and_passing_number_has_been_written(self):
r'that test case failing 1, 2 and 3 scenario and passing 4 has been written'
class _EvaluatedTestCase(SampleTestCaseMixIn, TestCase):
def step_I_press_add(self):
pass
def step_I_press_subtract(self):
pass
def step_I_press_multiply(self):
pass
self._evaluated_test_case = _EvaluatedTestCase
self._failing_patterns = [
self._add_failure_pattern,
self._substract_failure_pattern,
self._multiply_failure_pattern,
]
def step_I_run_test_case(self):
r'I run test case'
self._catch_exception = None
try:
tc = self._evaluated_test_case()
self._ast.evaluate(tc)
except Exception as e:
self._catch_exception = e # warning: possible leak, use with caution
def step_I_will_get_assertion_error_with_information_number_scenarios_passed_number_scenarios_failed(self, message):
r'I will get assertion error with information "([^"]+)"'
message = self._catch_exception.args[0]
self.assertTrue(message.startswith(message))
def step_I_will_get_traceback_of_each_failing_scenario(self):
r'I will get traceback of each failing scenario'
patterns = self._failing_patterns
message = self._catch_exception.args[0]
for pattern in patterns:
self.assertRegexpMatches(message, pattern)
def step_I_won_t_get_assertion_error(self):
r'I won\'t get assertion error'
self.assertIsNone(self._catch_exception)
def test_evaluate_file(self):
language = self._get_language()
thang = Parser(language=language).parse_file(pwd + '/features/morelia%s.feature' % (language or ''))
thang.evaluate(self)
def assemble_scene_table(self, moar=''):
scene = self.assemble_scene_table_source(moar)
language = self._get_language()
p = Parser(language=language)
self.table_scene = p.parse_features(scene)
def test_parse_feature_Row(self):
language = self._get_language()
p = Parser(language=language)
p.parse_feature(''' | piggy | op |''')
assert Row == p.steps[0].__class__
assert p.steps[0].predicate == 'piggy | op |'
def step_feature_with_number_scenarios_has_been_described_in_file(self, feature_file):
r'that feature with 4 scenarios has been described in file "([^"]+)"'
filename = os.path.join(pwd, 'features/{}'.format(feature_file))
self._ast = Parser().parse_file(filename)
