def test_loading_profile_keeps_expected_behaviour():
Settings.register_profile('ci', Settings(max_examples=10000))
Settings.load_profile('ci')
assert Settings().max_examples == 10000
with Settings(max_examples=5):
assert Settings().max_examples == 5
assert Settings().max_examples == 10000
def test_inherits_an_empty_database(db):
assert Settings.default.database is not None
s = Settings(database=db)
assert s.database is db
with s:
t = Settings()
assert t.database is db
def test_cannot_define_a_setting_with_default_not_valid():
with pytest.raises(InvalidArgument):
Settings.define_setting(
'kittens',
default=8, description='Kittens are pretty great',
options=(1, 2, 3, 4),
)
def test_cannot_define_a_setting_with_default_not_valid():
with pytest.raises(InvalidArgument):
Settings.define_setting(
'kittens',
default=8,
description='Kittens are pretty great',
options=(1, 2, 3, 4),
)
def test_define_setting_then_loading_profile():
x = Settings()
Settings.define_setting(
u'fun_times',
default=3, description=u'Something something spoon',
options=(1, 2, 3, 4),
)
Settings.register_profile('hi', Settings(fun_times=2))
assert x.fun_times == 3
assert Settings.get_profile('hi').fun_times == 2
def test_loading_profile_keeps_expected_behaviour():
Settings.register_profile('ci', Settings(max_examples=10000))
Settings.load_profile('ci')
assert Settings().max_examples == 10000
with Settings(max_examples=5):
assert Settings().max_examples == 5
assert Settings().max_examples == 10000
def test_load_profile():
Settings.load_profile('default')
assert Settings.default.max_examples == 200
assert Settings.default.max_shrinks == 500
assert Settings.default.min_satisfying_examples == 5
Settings.register_profile(
'test',
Settings(
max_examples=10,
max_shrinks=5
)
)
Settings.load_profile('test')
assert Settings.default.max_examples == 10
assert Settings.default.max_shrinks == 5
assert Settings.default.min_satisfying_examples == 5
Settings.load_profile('default')
assert Settings.default.max_examples == 200
assert Settings.default.max_shrinks == 500
assert Settings.default.min_satisfying_examples == 5
def test_will_handle_a_really_weird_failure(self, rnd):
db = ExampleDatabase()
@given(specifier,
settings=Settings(
settings,
database=db,
max_examples=max_examples,
min_satisfying_examples=2,
average_list_length=2.0,
),
random=rnd)
def nope(x):
s = hashlib.sha1(repr(x).encode(u'utf-8')).digest()
assert Random(s).randint(0, 1) == Random(s).randint(0, 1)
if Random(s).randint(0, 1):
raise Rejected(u'%r with digest %r' % (x, s))
try:
try:
nope()
except Rejected:
pass
try:
nope()
except Rejected:
pass
finally:
db.close()
def find(specifier, condition, settings=None, random=None, storage=None):
settings = settings or Settings(
max_examples=2000,
min_satisfying_examples=0,
max_shrinks=2000,
)
search = strategy(specifier, settings)
if storage is None and settings.database is not None:
storage = settings.database.storage(
u'find(%s)' %
(binascii.hexlify(function_digest(condition)).decode(u'ascii'), ))
random = random or Random()
successful_examples = [0]
def template_condition(template):
with BuildContext():
result = search.reify(template)
success = condition(result)
if success:
successful_examples[0] += 1
if not successful_examples[0]:
verbose_report(lambda: u'Trying example %s' % (repr(result), ))
elif success:
if successful_examples[0] == 1:
verbose_report(lambda: u'Found satisfying example %s' %
(repr(result), ))
else:
verbose_report(lambda: u'Shrunk example to %s' %
(repr(result), ))
return success
template_condition.__name__ = condition.__name__
tracker = Tracker()
try:
template = best_satisfying_template(
search,
random,
template_condition,
settings,
tracker=tracker,
max_parameter_tries=2,
storage=storage,
)
with BuildContext():
return search.reify(template)
except Timeout:
raise
except NoSuchExample:
if search.template_upper_bound <= len(tracker):
raise DefinitelyNoSuchExample(
get_pretty_function_description(condition),
search.template_upper_bound,
)
raise NoSuchExample(get_pretty_function_description(condition))
def test_will_handle_a_really_weird_failure(self):
db = ExampleDatabase()
@given(
specifier,
settings=Settings(
database=db,
max_examples=max_examples,
min_satisfying_examples=2,
average_list_length=2.0,
)
)
def nope(x):
s = hashlib.sha1(show(x).encode('utf-8')).digest()
if Random(s).randint(0, 1):
raise Rejected()
try:
try:
nope()
except Rejected:
pass
try:
nope()
except Rejected:
pass
finally:
db.close()
def test_puts_elements_of_set_in_database():
database = ExampleDatabase(backend=SQLiteBackend(':memory:'))
verifier = Verifier(settings=Settings(database=database))
verifier.falsify(lambda x: not x, {int})
assert list(database.storage_for([int]).fetch()) == []
assert list(database.storage_for({int}).fetch()) == [{0}]
assert list(database.storage_for(int).fetch()) == [0]
def __call__(self, specifier, settings=None):
from hypothesis.searchstrategy.strategies import SearchStrategy
if isinstance(specifier, SearchStrategy):
return specifier
self.load_deprecated_api()
if settings is None:
settings = Settings()
try:
result = super(StrategyExtMethod, self).__call__(
specifier, settings)
except NotImplementedError:
quiet_raise(NotImplementedError((
'Expected a SearchStrategy but got %r of type %s. '
'Note: This is a NotImplementedError for legacy reasons and '
'will become an InvalidArgumentError in Hypothesis 2.0.'
) % (specifier, type(specifier).__name__)))
note_deprecation((
'Conversion of %r to strategy is deprecated '
'and will be removed in Hypothesis 2.0. Use %r instead.') % (
specifier, result
), settings)
assert isinstance(result, SearchStrategy)
return result
def test_prints_debug_on_no_simplification():
with Settings(verbosity=Verbosity.debug):
with capture_out() as o:
find(just(u'hi'), bool)
v = o.getvalue()
print(v)
assert u'No simplifiers' in v
def test_can_use_values_in_the_database():
example = 'Hello world'
database = ExampleDatabase(backend=SQLiteBackend(':memory:'))
storage = database.storage_for(text_type)
storage.save(example)
verifier = Verifier(settings=Settings(database=database))
assert verifier.falsify(lambda x: x != example, text_type) == (example, )
def find(specifier, condition, settings=None, random=None):
settings = settings or Settings(
max_examples=2000,
min_satisfying_examples=0,
)
search = strategy(specifier, settings)
random = random or Random()
def template_condition(template):
return assume(condition(search.reify(template)))
template_condition.__name__ = condition.__name__
tracker = Tracker()
try:
return search.reify(
best_satisfying_template(
search,
random,
template_condition,
settings,
None,
tracker=tracker,
))
except NoSuchExample:
if search.size_upper_bound <= len(tracker):
raise DefinitelyNoSuchExample(
get_pretty_function_description(condition),
search.size_upper_bound,
)
raise NoSuchExample(get_pretty_function_description(condition))
def test_reports_differently_for_single_shrink():
with capture_verbosity(Verbosity.verbose) as o:
@fails
@given(basic(SillyStrategy), settings=Settings(database=None))
def test_foo(x):
assert False
test_foo()
assert u'shrunk example once' in o.getvalue()
def test_includes_progress_in_verbose_mode():
with capture_verbosity(Verbosity.verbose) as o:
with Settings(verbosity=Verbosity.verbose):
find(lists(integers()), lambda x: sum(x) >= 1000000)
out = o.getvalue()
assert out
assert u'Shrunk example' in out
assert u'Found satisfying example' in out
def test_puts_keyword_arguments_in_the_database_from_given():
database = ExampleDatabase(backend=SQLiteBackend(':memory:'))
verifier = Verifier(settings=Settings(database=database))
@given(x=int, verifier=verifier)
def a_test(x):
assert False
with pytest.raises(AssertionError):
a_test()
assert list(database.storage_for(int).fetch()) == [0]
def test_will_find_a_failure_from_the_database(self):
db = ExampleDatabase()
@given(specifier, settings=Settings(max_examples=10, database=db))
def nope(x):
raise Rejected()
try:
for i in hrange(3):
self.assertRaises(Rejected, nope) # pragma: no cover
finally:
db.close()
def __init__(self, base, extend, max_leaves):
self.max_leaves = max_leaves
self.base = TemplateLimitedStrategy(base)
self.extend = extend
with Settings(average_list_length=2):
strategies = [self.base, self.extend(self.base)]
while 2**len(strategies) <= max_leaves:
strategies.append(extend(OneOfStrategy(tuple(strategies))))
super(RecursiveStrategy,
self).__init__(OneOfStrategy(tuple(strategies)))
def __init__(self, strategy, constraint=None, execute=None, settings=None):
self.strategy = strategy
self.constraint = constraint
self.settings = settings or Settings(
max_examples=10000,
max_iterations=10000,
max_shrinks=5000,
)
self.constraint = constraint or (lambda x: True)
self.execute = execute or (lambda f: f())
self._set_template()
ALL_FIXTURES.append(weakref.ref(self))
def test_load_profile():
Settings.load_profile('default')
assert Settings.default.max_examples == 200
assert Settings.default.max_shrinks == 500
assert Settings.default.min_satisfying_examples == 5
Settings.register_profile('test', Settings(max_examples=10, max_shrinks=5))
Settings.load_profile('test')
assert Settings.default.max_examples == 10
assert Settings.default.max_shrinks == 5
assert Settings.default.min_satisfying_examples == 5
Settings.load_profile('default')
assert Settings.default.max_examples == 200
assert Settings.default.max_shrinks == 500
assert Settings.default.min_satisfying_examples == 5
def test_prints_initial_attempts_on_find():
with capture_verbosity(Verbosity.verbose) as o:
with Settings(verbosity=Verbosity.verbose):
seen = []
def not_first(x):
if not seen:
seen.append(x)
return False
return x not in seen
find(integers(), not_first)
assert u'Trying example' in o.getvalue()
def __call__(self, specifier, settings=None):
if isinstance(specifier, SearchStrategy):
return specifier
if settings is None:
settings = Settings()
note_deprecation(
('Calling strategy with non-strategy object %s is deprecated '
'and will be removed in Hypothesis 2.0. Use the functions in '
'hypothesis.strategies instead.') % (repr(specifier), ), settings)
result = super(StrategyExtMethod, self).__call__(specifier, settings)
assert isinstance(result, SearchStrategy)
return result
def find(specifier, condition, settings=None, random=None):
settings = settings or Settings(
max_examples=2000,
min_satisfying_examples=0,
)
search = strategy(specifier, settings)
random = random or Random()
successful_examples = [0]
def template_condition(template):
result = search.reify(template)
success = condition(result)
if success:
successful_examples[0] += 1
if not successful_examples[0]:
verbose_report(lambda: 'Trying example %s' % (show(result), ))
elif success:
if successful_examples[0] == 1:
verbose_report(lambda: 'Found satisfying example %s' %
(show(result), ))
else:
verbose_report(lambda: 'Shrunk example to %s' %
(show(result), ))
return assume(success)
template_condition.__name__ = condition.__name__
tracker = Tracker()
try:
return search.reify(
best_satisfying_template(
search,
random,
template_condition,
settings,
None,
tracker=tracker,
))
except NoSuchExample:
if search.size_upper_bound <= len(tracker):
raise DefinitelyNoSuchExample(
get_pretty_function_description(condition),
search.size_upper_bound,
)
raise NoSuchExample(get_pretty_function_description(condition))
def __call__(self, specifier, settings=None):
from hypothesis.searchstrategy.strategies import SearchStrategy
if isinstance(specifier, SearchStrategy):
return specifier
self.load_deprecated_api()
if settings is None:
settings = Settings()
result = super(StrategyExtMethod, self).__call__(specifier, settings)
note_deprecation(
('Conversion of %r to strategy is deprecated '
'and will be removed in Hypothesis 2.0. Use %r instead.') %
(specifier, result), settings)
assert isinstance(result, SearchStrategy)
return result
def test_does_print_verbose_in_debug():
with Settings(verbosity=Verbosity.debug):
with capture_out() as o:
verbose_report(u'Hi')
assert u'Hi' in o.getvalue()
def test_does_not_print_debug_in_verbose():
with Settings(verbosity=Verbosity.verbose):
with capture_out() as o:
debug_report(u'Hi')
assert not o.getvalue()
class ValidationSuite(TestCase):
def __repr__(self):
return 'strategy_test_suite(%s)' % (show(specifier), )
@given(specifier, settings=settings)
def test_does_not_error(self, value):
pass
def test_can_give_example(self):
strat.example()
def test_can_give_list_of_examples(self):
strategy([strat]).example()
def test_will_give_unsatisfiable_if_all_rejected(self):
@given(specifier, settings=settings)
def nope(x):
assume(False)
with self.assertRaises(Unsatisfiable):
nope()
def test_will_find_a_constant_failure(self):
@given(specifier, settings=settings)
def nope(x):
raise Rejected()
with self.assertRaises(Rejected):
nope()
def test_will_find_a_failure_from_the_database(self):
db = ExampleDatabase()
@given(specifier, settings=Settings(max_examples=10, database=db))
def nope(x):
raise Rejected()
try:
for _ in hrange(3):
with self.assertRaises(Rejected):
nope() # pragma: no branch
finally:
db.close()
def test_will_handle_a_really_weird_failure(self):
@given(specifier, settings=settings)
def nope(x):
if hash(show(specifier)) % 2:
raise Rejected()
try:
nope()
except Rejected:
pass
@specifier_test
def test_is_basic(self, value, rnd):
def is_basic(v):
return isinstance(
v, integer_types + (list, type(None), text_type)) and (
not isinstance(v, list) or all(is_basic(w) for w in v))
supposedly_basic = strat.to_basic(value)
self.assertTrue(is_basic(supposedly_basic), repr(supposedly_basic))
@specifier_test
def test_only_raises_bad_data_in_from_basic(self, value, rnd):
basic = strat.to_basic(value)
messed_basic = mutate_basic(basic, rnd)
try:
strat.from_basic(messed_basic)
except BadData:
pass
@specifier_test
def test_can_round_trip_through_the_database(self, template, rnd):
empty_db = ExampleDatabase(backend=SQLiteBackend(':memory:'), )
try:
storage = empty_db.storage_for(specifier)
storage.save(template)
values = list(storage.fetch())
assert len(values) == 1
assert strat.to_basic(template) == strat.to_basic(values[0])
finally:
empty_db.close()
@specifier_test
def test_template_is_hashable(self, template, rnd):
hash(template)
# It can be easy to forget to convert a list...
hash(strat.from_basic(strat.to_basic(template)))
@given(TemplatesFor(specifier), Random, [[int]], settings=settings)
def test_apply_all_simplifiers(self, template, rnd, path):
path = list(filter(None, path))
assume(path)
current_template = template
for local_route in path:
simplifiers = list(strat.simplifiers(current_template))
if not simplifiers:
break
for i in local_route:
simplify = simplifiers[abs(i) % len(simplifiers)]
simpler = list(simplify(rnd, current_template))
if simpler:
current_template = random.choice(simpler)
@specifier_test
def test_can_minimize_to_empty(self, template, rnd):
simplest = list(
strat.simplify_such_that(rnd, template, lambda x: True))[-1]
assert list(strat.full_simplify(rnd, simplest)) == []
@specifier_test
def test_can_complete_falsify_loop(self, template, rnd):
for _ in strat.full_simplify(rnd, template):
pass
@given(Random, settings=Settings(max_examples=1000))
def test_can_create_templates(self, random):
parameter = strat.draw_parameter(random)
strat.draw_template(BuildContext(random), parameter)
def test_modifying_registered_profile_does_not_change_profile():
ci_profile = Settings(max_examples=10000)
Settings.register_profile('ci', ci_profile)
ci_profile.max_examples = 1
Settings.load_profile('ci')
assert Settings().max_examples == 10000
def setup_function(fn):
Settings.load_profile('default')
Settings.register_profile('test_settings', Settings())
Settings.load_profile('test_settings')
class ValidationSuite(TestCase):
def __repr__(self):
return u'strategy_test_suite(%s)' % (repr(specifier), )
@given(specifier, settings=settings)
def test_does_not_error(self, value):
pass
def test_can_give_example(self):
strat.example()
def test_can_give_list_of_examples(self):
strategy(lists(strat)).example()
def test_will_give_unsatisfiable_if_all_rejected(self):
@given(specifier, settings=settings)
def nope(x):
assume(False)
self.assertRaises(Unsatisfiable, nope)
def test_will_find_a_constant_failure(self):
@given(specifier, settings=settings)
def nope(x):
raise Rejected()
self.assertRaises(Rejected, nope)
def test_will_find_a_failure_from_the_database(self):
db = ExampleDatabase()
@given(specifier,
settings=Settings(settings, max_examples=10, database=db))
def nope(x):
raise Rejected()
try:
for i in hrange(3):
self.assertRaises(Rejected, nope) # pragma: no cover
finally:
db.close()
@given(templates_for(specifier),
templates_for(specifier),
settings=settings)
def test_simplicity_is_asymmetric(self, x, y):
assert not (strat.strictly_simpler(x, y)
and strat.strictly_simpler(y, x))
@given(integers(), settings=settings)
def test_templates_generated_from_same_random_are_equal(self, i):
try:
t1 = strat.draw_and_produce(Random(i))
t2 = strat.draw_and_produce(Random(i))
except BadTemplateDraw:
assume(False)
if t1 is not t2:
assert t1 == t2
assert hash(t1) == hash(t2)
@given(integers(), settings=settings)
def test_templates_generated_from_same_random_are_equal_after_reify(
self, i):
try:
t1 = strat.draw_and_produce(Random(i))
t2 = strat.draw_and_produce(Random(i))
except BadTemplateDraw:
assume(False)
if t1 is not t2:
with BuildContext():
strat.reify(t1)
with BuildContext():
strat.reify(t2)
assert t1 == t2
assert hash(t1) == hash(t2)
@given(randoms(), settings=settings)
def test_will_handle_a_really_weird_failure(self, rnd):
db = ExampleDatabase()
@given(specifier,
settings=Settings(
settings,
database=db,
max_examples=max_examples,
min_satisfying_examples=2,
average_list_length=2.0,
),
random=rnd)
def nope(x):
s = hashlib.sha1(repr(x).encode(u'utf-8')).digest()
assert Random(s).randint(0, 1) == Random(s).randint(0, 1)
if Random(s).randint(0, 1):
raise Rejected(u'%r with digest %r' % (x, s))
try:
try:
nope()
except Rejected:
pass
try:
nope()
except Rejected:
pass
finally:
db.close()
@specifier_test
def test_is_basic(self, value, rnd):
def is_basic(v):
if v is None or isinstance(v, text_type):
return True
if isinstance(v, integer_types):
return not (abs(v) >> 64)
if isinstance(v, list):
return all(is_basic(w) for w in v)
return False
supposedly_basic = strat.to_basic(value)
self.assertTrue(is_basic(supposedly_basic), repr(supposedly_basic))
@specifier_test
def test_only_raises_bad_data_in_from_basic(self, value, rnd):
basic = strat.to_basic(value)
messed_basic = mutate_basic(basic, rnd)
try:
strat.from_basic(messed_basic)
except BadData:
pass
@specifier_test
def test_can_round_trip_through_the_database(self, template, rnd):
empty_db = ExampleDatabase(backend=SQLiteBackend(u':memory:'), )
try:
storage = empty_db.storage(u'round trip')
storage.save(template, strat)
values = list(storage.fetch(strat))
assert len(values) == 1
assert strat.to_basic(template) == strat.to_basic(values[0])
finally:
empty_db.close()
@specifier_test
def test_template_is_hashable(self, template, rnd):
hash(template)
# It can be easy to forget to convert a list...
hash(strat.from_basic(strat.to_basic(template)))
@specifier_test
def test_can_minimize_to_empty(self, template, rnd):
simplest = template
tracker = Tracker()
while True:
for t in strat.full_simplify(rnd, simplest):
if tracker.track(t) == 1:
simplest = t
break
else:
break
assert list(strat.full_simplify(rnd, simplest)) == []
@specifier_test
def test_full_simplify_completes(self, template, rnd):
# Cut off at 100 for the occasional case where we get
# really very large templates which have too many simplifies.
for x in islice(strat.full_simplify(rnd, template), 100):
pass
@specifier_test
def test_does_not_increase_complexity(self, template, rnd):
for s in islice(strat.full_simplify(rnd, template), 100):
assert not strat.strictly_simpler(template, s)
@given(randoms(), settings=Settings(settings, max_examples=100))
def test_can_create_templates(self, random):
parameter = strat.draw_parameter(random)
try:
strat.draw_template(random, parameter)
except BadTemplateDraw:
assume(False)
def test_cannot_set_non_settings():
s = Settings()
with pytest.raises(AttributeError):
s.databas_file = 'some_file'
import pytest
from hypothesis.settings import Settings
from hypothesis.internal.debug import timeout
from hypothesis.strategytests import templates_for
from tests.common.basic import Bitfields
from hypothesis.strategies import integers, floats, just, one_of, \
sampled_from, streaming, basic, lists, booleans, dictionaries, tuples, \
frozensets, complex_numbers, sets, text, binary, decimals, fractions, \
none, randoms, builds, fixed_dictionaries, recursive
from hypothesis.internal.compat import hrange
from hypothesis.searchstrategy.narytree import n_ary_tree
from hypothesis.utils.show import show
settings = Settings(max_examples=100, timeout=4)
__all__ = [u'small_verifier', u'timeout', u'standard_types', u'OrderedPair']
OrderedPair = namedtuple(u'OrderedPair', (u'left', u'right'))
ordered_pair = integers().flatmap(
lambda right: integers(min_value=0).map(
lambda length: OrderedPair(right - length, right)))
def constant_list(strat):
return strat.flatmap(
lambda v: lists(just(v)),
def __call__(self, specifier, settings=None):
if settings is None:
settings = Settings()
result = super(StrategyExtMethod, self).__call__(specifier, settings)
assert isinstance(result, SearchStrategy)
return result
def test_load_non_existent_profile():
with pytest.raises(hypothesis.errors.InvalidArgument):
Settings.get_profile('nonsense')
def test_verifier_explodes_when_you_mix_random_and_derandom():
settings = Settings(derandomize=True)
with pytest.raises(ValueError):
Verifier(settings=settings, random=Random())
from hypothesis.errors import Flaky, NoSuchExample, InvalidDefinition, \
UnsatisfiedAssumption
from hypothesis.settings import Settings, Verbosity
from hypothesis.reporting import report, verbose_report, current_verbosity
from hypothesis.internal.compat import hrange, integer_types
from hypothesis.searchstrategy.misc import JustStrategy, \
SampledFromStrategy
from hypothesis.searchstrategy.strategies import BadData, SearchStrategy, \
strategy, check_length, check_data_type, one_of_strategies
from hypothesis.searchstrategy.collections import TupleStrategy, \
FixedKeysDictStrategy
Settings.define_setting(
name='stateful_step_count',
default=50,
description="""
Number of steps to run a stateful program for before giving up on it breaking.
"""
)
class TestCaseProperty(object): # pragma: no cover
def __get__(self, obj, typ=None):
if obj is not None:
typ = type(obj)
return typ._to_test_case()
def __set__(self, obj, value):
raise AttributeError('Cannot set TestCase')
# obtain one at http://mozilla.org/MPL/2.0/.
# END HEADER
from __future__ import division, print_function, absolute_import, \
unicode_literals
import pytest
from hypothesis.errors import InvalidArgument
from hypothesis.settings import Settings, Verbosity
TEST_DESCRIPTION = 'This is a setting just for these tests'
Settings.define_setting(
'a_setting_just_for_these_tests',
default=3,
description=TEST_DESCRIPTION,
)
Settings.define_setting(
'a_setting_with_limited_options',
default=3, description='Something something spoon',
options=(1, 2, 3, 4),
)
def test_has_docstrings():
assert TEST_DESCRIPTION in Settings.a_setting_just_for_these_tests.__doc__
"""A strategy which produces dicts with a fixed set of keys, given a
strategy for each of their equivalent values.
e.g. {'foo' : some_int_strategy} would
generate dicts with the single key 'foo' mapping to some integer.
"""
def __init__(self, strategy_dict):
self.dict_type = type(strategy_dict)
if isinstance(strategy_dict, OrderedDict):
self.keys = tuple(strategy_dict.keys())
else:
try:
self.keys = tuple(sorted(strategy_dict.keys()))
except TypeError:
self.keys = tuple(sorted(strategy_dict.keys(), key=show))
super(FixedKeysDictStrategy, self).__init__(
strategy=TupleStrategy((strategy_dict[k] for k in self.keys), tuple)
)
def __repr__(self):
return u"FixedKeysDictStrategy(%r, %r)" % (self.keys, self.mapped_strategy)
def pack(self, value):
return self.dict_type(zip(self.keys, value))
Settings.define_setting(u"average_list_length", default=25.0, description=u"Average length of lists to use")
"""
def __init__(self, strategy_dict):
self.dict_type = type(strategy_dict)
if isinstance(strategy_dict, OrderedDict):
self.keys = tuple(strategy_dict.keys())
else:
try:
self.keys = tuple(sorted(strategy_dict.keys(), ))
except TypeError:
self.keys = tuple(sorted(
strategy_dict.keys(),
key=show,
))
super(
FixedKeysDictStrategy,
self).__init__(strategy=TupleStrategy((strategy_dict[k]
for k in self.keys), tuple))
def __repr__(self):
return 'FixedKeysDictStrategy(%r, %r)' % (self.keys,
self.mapped_strategy)
def pack(self, value):
return self.dict_type(zip(self.keys, value))
Settings.define_setting('average_list_length',
default=25.0,
description='Average length of lists to use')
def test_loading_profile_resets_defaults():
assert Settings.default.min_satisfying_examples == 5
Settings.default.min_satisfying_examples = 100
assert Settings.default.min_satisfying_examples == 100
Settings.load_profile('default')
assert Settings.default.min_satisfying_examples == 5
def test_can_assign_database(db):
x = Settings()
assert x.database is not None
x.database = db
assert x.database is db
import os
import pytest
import hypothesis
from hypothesis.errors import InvalidArgument
from hypothesis.database import ExampleDatabase
from hypothesis.settings import Settings, Verbosity
def test_has_docstrings():
assert Settings.verbosity.__doc__
original_default = Settings.get_profile('default').max_examples
def setup_function(fn):
Settings.load_profile('default')
Settings.register_profile('test_settings', Settings())
Settings.load_profile('test_settings')
def test_cannot_set_non_settings():
s = Settings()
with pytest.raises(AttributeError):
s.databas_file = u'some_file'
def test_settings_uses_defaults():
@strategy.extend(frozenset)
def define_frozen_set_strategy(specifier, settings):
return FrozenSetStrategy(strategy(set(specifier), settings))
@strategy.extend(list)
def define_list_strategy(specifier, settings):
return ListStrategy(
[strategy(d, settings) for d in specifier],
average_length=settings.average_list_length
)
Settings.define_setting(
'average_list_length',
default=50.0,
description='Average length of lists to use'
)
@strategy.extend(tuple)
def define_tuple_strategy(specifier, settings):
return TupleStrategy(
tuple(strategy(d, settings) for d in specifier),
tuple_type=type(specifier)
)
@strategy.extend(dict)
def define_dict_strategy(specifier, settings):
strategy_dict = {}
# This Source Code Form is subject to the terms of the Mozilla Public License,
# v. 2.0. If a copy of the MPL was not distributed with this file, You can
# obtain one at http://mozilla.org/MPL/2.0/.
# END HEADER
from __future__ import division, print_function, absolute_import
import pytest
from hypothesis.errors import InvalidArgument
from hypothesis.settings import Settings, Verbosity
TEST_DESCRIPTION = u"This is a setting just for these tests"
Settings.define_setting(u"a_setting_just_for_these_tests", default=3, description=TEST_DESCRIPTION)
Settings.define_setting(
u"a_setting_with_limited_options", default=3, description=u"Something something spoon", options=(1, 2, 3, 4)
)
def test_has_docstrings():
assert TEST_DESCRIPTION in Settings.a_setting_just_for_these_tests.__doc__
def setup_function(fn):
try:
delattr(Settings.default, u"a_setting_just_for_these_tests")
except AttributeError:
