def from_file(cls, file_):
"""
Construct a test class from a feature file.
"""
feature = Feature.from_file(
file_,
parser_class=TestGherkin,
)
background = cls.make_background(feature.background)
scenarios = [
cls.make_scenario(scenario, i + 1)
for i, scenario in enumerate(feature.scenarios)
]
before_feature, after_feature = \
CALLBACK_REGISTRY.before_after('feature')
members = {
'feature': feature,
'background': background,
'before_feature': staticmethod(before_feature),
'after_feature': staticmethod(after_feature),
}
members.update({scenario.__name__: scenario for scenario in scenarios})
class_name = always_str(feature.name)
return type(class_name, (cls, ), members)
def from_file(cls, file_):
"""
Construct a test class from a feature file.
"""
feature = Feature.from_file(
file_,
parser_class=TestGherkin,
)
background = cls.make_background(feature.background)
scenarios = [
cls.make_scenario(scenario, i + 1)
for i, scenario in enumerate(feature.scenarios)
]
before_feature, after_feature = \
CALLBACK_REGISTRY.before_after('feature')
members = {
'feature': feature,
'background': background,
'before_feature': staticmethod(before_feature),
'after_feature': staticmethod(after_feature),
}
members.update({
scenario.__name__: scenario
for scenario in scenarios
})
class_name = always_str(feature.name)
return type(class_name, (cls,), members)
def test_syntax_error_malformed_feature_from_file():
"""Parsing a malformed feature in a filecauses a syntax error."""
with tempfile.NamedTemporaryFile() as feature_file:
feature_file.write(b"""
PARSE ERROR
""")
feature_file.flush()
with assert_raises(AloeSyntaxError) as error:
Feature.from_file(feature_file.name)
# pylint:disable=line-too-long
assert_equal(error.exception.msg, '\n'.join((
"Syntax error at: {filename}",
"Parser errors:",
"(2:1): expected: #EOF, #Language, #TagLine, #FeatureLine, #Comment, #Empty, got 'PARSE ERROR'",
)).format(filename=feature_file.name))
def test_syntax_error_malformed_feature_from_file():
"""Parsing a malformed feature in a filecauses a syntax error."""
with tempfile.NamedTemporaryFile() as feature_file:
feature_file.write(b"""
PARSE ERROR
""")
feature_file.flush()
with assert_raises(AloeSyntaxError) as error:
Feature.from_file(feature_file.name)
# pylint:disable=line-too-long
assert_equal(
error.exception.msg, '\n'.join((
"Syntax error at: {filename}",
"Parser errors:",
"(2:1): expected: #EOF, #Language, #TagLine, #FeatureLine, #Comment, #Empty, got 'PARSE ERROR'",
)).format(filename=feature_file.name))
def test_syntax_error_malformed_feature_from_file():
"""Parsing a malformed feature in a filecauses a syntax error."""
with named_temporary_file() as feature_file:
feature_file.write(b"""
PARSE ERROR
""")
feature_file.close()
with pytest.raises(AloeSyntaxError) as error:
Feature.from_file(feature_file.name)
# pylint:disable=line-too-long
assert str(error.value) == "\n".join((
"Syntax error at: {filename}",
"Parser errors:",
"(2:1): expected: #EOF, #Language, #TagLine, #FeatureLine, #Comment, #Empty, got 'PARSE ERROR' ({basename})",
)).format(filename=feature_file.name,
basename=os.path.basename(feature_file.name))
