def test_consistent_decimal_error():
bad = "invalid argument to Decimal"
with pytest.raises(InvalidArgument) as excinfo:
decimals(bad).example()
with pytest.raises(InvalidArgument) as excinfo2:
with decimal.localcontext(decimal.Context(traps=[])):
decimals(bad).example()
assert str(excinfo.value) == str(excinfo2.value)
def test_non_reversible_decimals():
def not_reversible(xs):
assume(all(x.is_finite() for x in xs))
return sum(xs) != sum(reversed(xs))
sigh = minimal(lists(decimals()), not_reversible, timeout_after=30)
assert len(sigh) < 10
def _get_strategy_for_field(f):
if f.choices:
choices = []
for value, name_or_optgroup in f.choices:
if isinstance(name_or_optgroup, (list, tuple)):
choices.extend(key for key, _ in name_or_optgroup)
else:
choices.append(value)
if isinstance(f, (dm.CharField, dm.TextField)) and f.blank:
choices.insert(0, u'')
strategy = st.sampled_from(choices)
elif type(f) == dm.SlugField:
strategy = st.text(alphabet=string.ascii_letters + string.digits,
min_size=(None if f.blank else 1),
max_size=f.max_length)
elif type(f) == dm.GenericIPAddressField:
lookup = {'both': ip4_addr_strings() | ip6_addr_strings(),
'ipv4': ip4_addr_strings(), 'ipv6': ip6_addr_strings()}
strategy = lookup[f.protocol.lower()]
elif type(f) in (dm.TextField, dm.CharField):
strategy = st.text(min_size=(None if f.blank else 1),
max_size=f.max_length)
elif type(f) == dm.DecimalField:
bound = Decimal(10 ** f.max_digits - 1) / (10 ** f.decimal_places)
strategy = st.decimals(min_value=-bound, max_value=bound,
places=f.decimal_places)
else:
strategy = field_mappings().get(type(f), st.nothing())
if f.validators:
strategy = strategy.filter(validator_to_filter(f))
if f.null:
strategy = st.one_of(st.none(), strategy)
return strategy
def _get_strategy_for_field(f):
# type: (Type[dm.Field]) -> st.SearchStrategy[Any]
if f.choices:
choices = [] # type: list
for value, name_or_optgroup in f.choices:
if isinstance(name_or_optgroup, (list, tuple)):
choices.extend(key for key, _ in name_or_optgroup)
else:
choices.append(value)
if isinstance(f, (dm.CharField, dm.TextField)) and f.blank:
choices.insert(0, u'')
strategy = st.sampled_from(choices)
elif type(f) == dm.SlugField:
strategy = st.text(alphabet=string.ascii_letters + string.digits,
min_size=(0 if f.blank else 1),
max_size=f.max_length)
elif type(f) == dm.GenericIPAddressField:
lookup = {'both': ip4_addr_strings() | ip6_addr_strings(),
'ipv4': ip4_addr_strings(), 'ipv6': ip6_addr_strings()}
strategy = lookup[f.protocol.lower()]
elif type(f) in (dm.TextField, dm.CharField):
strategy = st.text(
alphabet=st.characters(blacklist_characters=u'\x00',
blacklist_categories=('Cs',)),
min_size=(0 if f.blank else 1),
max_size=f.max_length,
)
# We can infer a vastly more precise strategy by considering the
# validators as well as the field type. This is a minimal proof of
# concept, but we intend to leverage the idea much more heavily soon.
# See https://github.com/HypothesisWorks/hypothesis-python/issues/1116
re_validators = [
v for v in f.validators
if isinstance(v, validators.RegexValidator) and not v.inverse_match
]
if re_validators:
regexes = [re.compile(v.regex, v.flags) if isinstance(v.regex, str)
else v.regex for v in re_validators]
# This strategy generates according to one of the regexes, and
# filters using the others. It can therefore learn to generate
# from the most restrictive and filter with permissive patterns.
# Not maximally efficient, but it makes pathological cases rarer.
# If you want a challenge: extend https://qntm.org/greenery to
# compute intersections of the full Python regex language.
strategy = st.one_of(*[st.from_regex(r) for r in regexes])
elif type(f) == dm.DecimalField:
bound = Decimal(10 ** f.max_digits - 1) / (10 ** f.decimal_places)
strategy = st.decimals(min_value=-bound, max_value=bound,
places=f.decimal_places)
else:
strategy = field_mappings().get(type(f), st.nothing())
if f.validators:
strategy = strategy.filter(validator_to_filter(f))
if f.null:
strategy = st.one_of(st.none(), strategy)
return strategy
def test_fuzz_decimals_bounds(data):
places = data.draw(none() | integers(0, 20), label='places')
finite_decs = decimals(allow_nan=False, allow_infinity=False,
places=places) | none()
low, high = data.draw(tuples(finite_decs, finite_decs), label='low, high')
if low is not None and high is not None and low > high:
low, high = high, low
ctx = decimal.Context(prec=data.draw(integers(1, 100), label='precision'))
try:
with decimal.localcontext(ctx):
strat = decimals(low, high, allow_nan=False,
allow_infinity=False, places=places)
val = data.draw(strat, label='value')
except InvalidArgument:
reject() # decimals too close for given places
if low is not None:
assert low <= val
if high is not None:
assert val <= high
if places is not None:
assert val.as_tuple().exponent == -places
def test_non_float_decimal():
minimal(ds.decimals(),
lambda d: d.is_finite() and decimal.Decimal(float(d)) != d)
@given(ds.fractions(min_value=-1, max_value=1, max_denominator=1000))
def test_fraction_is_in_bounds(x):
assert -1 <= x <= 1 and abs(x.denominator) <= 1000
@given(ds.fractions(min_value=fractions.Fraction(1, 2)))
def test_fraction_gt_positive(x):
assert fractions.Fraction(1, 2) <= x
@given(ds.fractions(max_value=fractions.Fraction(-1, 2)))
def test_fraction_lt_negative(x):
assert x <= fractions.Fraction(-1, 2)
@given(ds.decimals(min_value=-1.5, max_value=1.5, allow_nan=False))
def test_decimal_is_in_bounds(x):
# decimal.Decimal("-1.5") == -1.5 (not explicitly testable in py2.6)
assert decimal.Decimal("-1.5") <= x <= decimal.Decimal("1.5")
def test_float_can_find_max_value_inf():
assert minimal(ds.floats(max_value=float("inf")),
lambda x: math.isinf(x)) == float("inf")
assert minimal(ds.floats(min_value=0.0),
lambda x: math.isinf(x)) == float("inf")
def test_float_can_find_min_value_inf():
minimal(ds.floats(), lambda x: x < 0 and math.isinf(x))
minimal(ds.floats(min_value=float("-inf"), max_value=0.0),
zpad_right(
string_value_as_bytes,
ceil32(len(string_value_as_bytes)),
)
if string_value
else b'\x00' * 32
)
)
encoded_value = encoder(string_value)
assert encoded_value == expected_value
@settings(max_examples=250)
@given(
value=st.one_of(st.integers(), st.decimals(), st.none()),
value_bit_size=st.integers(min_value=1, max_value=32).map(lambda v: v * 8),
frac_places=st.integers(min_value=1, max_value=80),
data_byte_size=st.integers(min_value=0, max_value=32),
)
@example(value=decimal.Decimal('5.33'), value_bit_size=8, frac_places=1, data_byte_size=1)
def test_encode_unsigned_fixed(value,
value_bit_size,
frac_places,
data_byte_size):
if value_bit_size > data_byte_size * 8:
pattern = r'Value byte size exceeds data size'
with pytest.raises(ValueError, match=pattern):
UnsignedFixedEncoder(
value_bit_size=value_bit_size,
frac_places=frac_places,
def test_decimals():
assert minimal(ds.decimals(), lambda f: f.is_finite() and f >= 1) == 1
if empty or not strategies: # pragma: no cover
raise ResolutionFailed(
'Could not resolve %s to a strategy; consider using '
'register_type_strategy' % (empty or thing,))
return st.one_of(strategies)
_global_type_lookup = {
# Types with core Hypothesis strategies
type(None): st.none(),
bool: st.booleans(),
int: st.integers(),
float: st.floats(),
complex: st.complex_numbers(),
fractions.Fraction: st.fractions(),
decimal.Decimal: st.decimals(),
text_type: st.text(),
bytes: st.binary(),
datetime.datetime: st.datetimes(),
datetime.date: st.dates(),
datetime.time: st.times(),
datetime.timedelta: st.timedeltas(),
uuid.UUID: st.uuids(),
tuple: st.builds(tuple),
list: st.builds(list),
set: st.builds(set),
frozenset: st.builds(frozenset),
dict: st.builds(dict),
# Built-in types
type: st.sampled_from([type(None), bool, int, str, list, set, dict]),
type(Ellipsis): st.just(Ellipsis),
def techproducts_id():
return st.builds(u'{}-{}-{}'.format,
st.integers(min_value=0),
solr_text(),
st.integers(min_value=0))
@given(id=techproducts_id(),
name=solr_text(),
manu=solr_text(),
manu_id_s=techproducts_id(),
cat=solr_text(),
features=solr_text(),
weight=st.floats(min_value=1, max_value=100),
price=st.decimals(),
popularity=st.integers(min_value=1, max_value=10000),
inStock=st.booleans(),
store=lat_long(),
manufacturedate_dt=solr_date())
def generate_documents(use_doc, **kwargs):
use_doc(kwargs)
def main(*args, **kwargs):
run.main(generate_documents=generate_documents, *args, **kwargs)
if __name__ == '__main__':
main()
def test_decimals_include_nan():
find_any(decimals(), lambda x: x.is_nan())
min_value=0,
max_value=2**n - 1,
))
int_total_bits = st.shared(total_bits, key='int_total_bits')
int_strs = int_total_bits.map('int{}'.format)
int_values = int_total_bits.flatmap(lambda n: st.integers(
min_value=-2**(n - 1),
max_value=2**(n - 1) - 1,
))
ufixed_size_tuples = st.shared(fixed_sizes, key='ufixed_size_tuples')
ufixed_strs = ufixed_size_tuples.map(join_with_x).map('ufixed{}'.format)
ufixed_values = ufixed_size_tuples.flatmap(lambda sz: st.decimals(
min_value=0,
max_value=2**sz[0] - 1,
places=0,
).map(scale_places(sz[1])))
fixed_size_tuples = st.shared(fixed_sizes, key='fixed_size_tuples')
fixed_strs = fixed_size_tuples.map(join_with_x).map('fixed{}'.format)
fixed_values = fixed_size_tuples.flatmap(lambda sz: st.decimals(
min_value=-2**(sz[0] - 1),
max_value=2**(sz[0] - 1) - 1,
places=0,
).map(scale_places(sz[1])))
fixed_bytes_sizes = st.shared(bytes_sizes, key='fixed_bytes_sizes')
fixed_bytes_strs = fixed_bytes_sizes.map('bytes{}'.format)
fixed_bytes_values = fixed_bytes_sizes.flatmap(lambda n: st.binary(
min_size=n,
assert list_add(L) == list_add(reversed(L))
# Test commutativity using a property-based tests
from hypothesis import given
import hypothesis.strategies as st
# EXERCISE 1: Test with a list of whole numbers
@given(st.lists(st.integers()))
def test_list_add_whole_numbers_pbt(L):
assert list_add(L) == list_add(reversed(L))
# EXERCISE 2: Test with a list of real numbers (floats or decimals)
@given(
st.lists(
st.decimals(
allow_nan=False,
allow_infinity=False,
places=2,
min_value=-999999,
max_value=999999,
)))
def test_list_add_real_numbers_pbt(L):
assert list_add(L) == list_add(reversed(L))
# Documentation on the different strategies:
# http://hypothesis.readthedocs.io/en/latest/data.html
# Copyright (C) 2013-2015 David R. MacIver ([email protected]) # This file is part of Hypothesis (https://github.com/DRMacIver/hypothesis) # 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, \ unicode_literals from decimal import Decimal from hypothesis import given, assume from tests.common.utils import fails from hypothesis.strategies import decimals, fractions @fails @given(decimals()) def test_all_decimals_can_be_exact_floats(x): assume(x.is_finite()) assert Decimal(float(x)) == x @given(fractions(), fractions(), fractions()) def test_fraction_addition_is_well_behaved(x, y, z): assert x + y + z == y + x + z
from datetime import timedelta
from hypothesis import given
from hypothesis.strategies import SearchStrategy, builds, datetimes, decimals
from isoduration.formatter import format_duration
from isoduration.parser import parse_duration
from isoduration.types import DateDuration, Duration, TimeDuration
item_st = decimals(min_value=-1_000_000_000_000, max_value=+1_000_000_000_000, places=0)
seconds_st = decimals(
min_value=-1_000_000_000_000, max_value=+1_000_000_000_000, places=10
)
"""
Fractional numbers are only allowed by the standard in the lest significant
component. It's a bit difficult to have a strategy modelling this, so we have
opted to include fractional numbers just as part of the seconds component.
"""
date_duration_st: SearchStrategy[DateDuration] = builds(
DateDuration, years=item_st, months=item_st, days=item_st
)
time_duration_st: SearchStrategy[TimeDuration] = builds(
TimeDuration, hours=item_st, minutes=item_st, seconds=seconds_st
)
@given(date_duration=date_duration_st, time_duration=time_duration_st)
def test_parse_inverse_of_format(date_duration, time_duration):
duration = Duration(date_duration, time_duration)
assert parse_duration(format_duration(duration)) == duration
from hypothesis import strategies as st
from decimal import Decimal
import datetime as dt
from enum import Enum
from . import _strategies as _st
# Tests often want to compare for equality, and there's no good way to do this with NaNs breaking it. :-(
st.register_type_strategy(Decimal, st.decimals(allow_nan=False))
st.register_type_strategy(float, st.floats(allow_nan=False))
def type_value_pairs(base):
@st.composite
def tv_pairs(draw):
typ = draw(base)
try:
val = draw(st.from_type(typ))
except Exception as exc:
exc.args += (typ, )
raise
return (typ, val)
return tv_pairs()
atoms = st.sampled_from([
type(None),
bool,
int,
class HypothesisSpec(RuleBasedStateMachine):
def __init__(self):
super(HypothesisSpec, self).__init__()
self.database = None
strategies = Bundle(u'strategy')
strategy_tuples = Bundle(u'tuples')
objects = Bundle(u'objects')
streaming_strategies = Bundle(u'streams')
basic_data = Bundle(u'basic')
varied_floats = Bundle(u'varied_floats')
strats_with_parameters = Bundle(u'strats_with_parameters')
strats_with_templates = Bundle(u'strats_with_templates')
strats_with_2_templates = Bundle(u'strats_with_2_templates')
def teardown(self):
self.clear_database()
@timeout(60, catchable=True)
def execute_step(self, step):
return super(HypothesisSpec, self).execute_step(step)
@rule(target=basic_data, st=strats_with_templates)
def to_basic(self, st):
return st[0].to_basic(st[1])
@rule(data=basic_data, strat=strategies)
def from_basic(self, data, strat):
try:
template = strat.from_basic(data)
except BadData:
return
strat.reify(template)
@rule(target=basic_data, data=basic_data, r=randoms())
def mess_with_basic(self, data, r):
return mutate_basic(data, r)
@rule()
def clear_database(self):
if self.database is not None:
self.database.close()
self.database = None
@rule()
def set_database(self):
self.teardown()
self.database = ExampleDatabase()
@rule(st=strats_with_templates)
def reify(self, st):
strat, temp = st
strat.reify(temp)
@rule(target=strats_with_templates, st=strats_with_templates)
def via_basic(self, st):
strat, temp = st
temp = strat.from_basic(strat.to_basic(temp))
return (strat, temp)
@rule(targets=(strategies, streaming_strategies), strat=strategies)
def build_stream(self, strat):
return streaming(strat)
@rule(targets=(strategies, streaming_strategies),
strat=strategies,
i=integers(1, 10))
def evalled_stream(self, strat, i):
return streaming(strat).map(lambda x: list(x[:i]) and x)
@rule(stream_strat=streaming_strategies, index=integers(0, 50))
def eval_stream(self, stream_strat, index):
try:
stream = stream_strat.example()
list(stream[:index])
except NoExamples:
pass
@rule(target=strats_with_templates, st=strats_with_templates, r=randoms())
def simplify(self, st, r):
strat, temp = st
for temp in strat.full_simplify(r, temp):
break
return (strat, temp)
@rule(strat=strategies, r=randoms(), mshr=integers(0, 100))
def find_constant_failure(self, strat, r, mshr):
with Settings(
verbosity=Verbosity.quiet,
max_examples=1,
min_satisfying_examples=0,
database=self.database,
max_shrinks=mshr,
):
@given(
strat,
random=r,
)
def test(x):
assert False
try:
test()
except AssertionError:
pass
@rule(strat=strategies,
r=randoms(),
p=floats(0, 1),
mex=integers(1, 10),
mshr=integers(1, 100))
def find_weird_failure(self, strat, r, mex, p, mshr):
with Settings(
verbosity=Verbosity.quiet,
max_examples=mex,
min_satisfying_examples=0,
database=self.database,
max_shrinks=mshr,
):
@given(
strat,
random=r,
)
def test(x):
assert Random(hashlib.md5(
show(x).encode(u'utf-8')).digest()).random() <= p
try:
test()
except AssertionError:
pass
@rule(target=strats_with_parameters, strat=strategies, r=randoms())
def draw_parameter(self, strat, r):
return (strat, strat.draw_parameter(r))
@rule(target=strats_with_templates, sp=strats_with_parameters, r=randoms())
def draw_template(self, sp, r):
strat, param = sp
return (strat, strat.draw_template(r, param))
@rule(target=strats_with_2_templates,
sp=strats_with_parameters,
r=randoms())
def draw_templates(self, sp, r):
strat, param = sp
return (
strat,
strat.draw_template(r, param),
strat.draw_template(r, param),
)
@rule(st=strats_with_templates)
def check_serialization(self, st):
strat, template = st
as_basic = strat.to_basic(template)
assert show(strat.reify(template)) == show(
strat.reify(strat.from_basic(as_basic)))
assert as_basic == strat.to_basic(strat.from_basic(as_basic))
@rule(target=strategies,
spec=sampled_from((
integers(),
booleans(),
floats(),
complex_numbers(),
fractions(),
decimals(),
text(),
binary(),
none(),
StateMachineSearchStrategy(),
tuples(),
)))
def strategy(self, spec):
return spec
@rule(target=strategies, values=lists(integers() | text(), min_size=1))
def sampled_from_strategy(self, values):
return sampled_from(values)
@rule(target=strategies, spec=strategy_tuples)
def strategy_for_tupes(self, spec):
return tuples(*spec)
@rule(target=strategies,
source=strategies,
level=integers(1, 10),
mixer=text())
def filtered_strategy(s, source, level, mixer):
def is_good(x):
return bool(
Random(
hashlib.md5(
(mixer + show(x)).encode(u'utf-8')).digest()).randint(
0, level))
return source.filter(is_good)
@rule(target=strategies, elements=strategies)
def list_strategy(self, elements):
return lists(elements, average_size=AVERAGE_LIST_LENGTH)
@rule(target=strategies, l=strategies, r=strategies)
def or_strategy(self, l, r):
return l | r
@rule(target=strategies,
source=strategies,
result=strategies,
mixer=text())
def mapped_strategy(self, source, result, mixer):
cache = {}
def do_map(value):
rep = show(value)
try:
return deepcopy(cache[rep])
except KeyError:
pass
random = Random(
hashlib.md5((mixer + rep).encode(u'utf-8')).digest())
outcome_template = result.draw_and_produce(random)
cache[rep] = result.reify(outcome_template)
return deepcopy(cache[rep])
return source.map(do_map)
@rule(target=varied_floats, source=floats())
def float(self, source):
return source
@rule(target=varied_floats,
source=varied_floats,
offset=integers(-100, 100))
def adjust_float(self, source, offset):
return int_to_float(clamp(0, float_to_int(source) + offset, 2**64 - 1))
@rule(target=strategies, left=varied_floats, right=varied_floats)
def float_range(self, left, right):
for f in (math.isnan, math.isinf):
for x in (left, right):
assume(not f(x))
left, right = sorted((left, right))
assert left <= right
return floats(left, right)
@rule(target=strategies,
source=strategies,
result1=strategies,
result2=strategies,
mixer=text(),
p=floats(0, 1))
def flatmapped_strategy(self, source, result1, result2, mixer, p):
assume(result1 is not result2)
def do_map(value):
rep = show(value)
random = Random(
hashlib.md5((mixer + rep).encode(u'utf-8')).digest())
if random.random() <= p:
return result1
else:
return result2
return source.flatmap(do_map)
@rule(target=strategies, value=objects)
def just_strategy(self, value):
return just(value)
@rule(target=strategy_tuples, source=strategies)
def single_tuple(self, source):
return (source, )
@rule(target=strategy_tuples, l=strategy_tuples, r=strategy_tuples)
def cat_tuples(self, l, r):
return l + r
@rule(target=objects, strat=strategies)
def get_example(self, strat):
try:
strat.example()
except NoExamples:
# Because of filtering some strategies we look for don't actually
# have any examples.
pass
@rule(target=strategies, left=integers(), right=integers())
def integer_range(self, left, right):
left, right = sorted((left, right))
return integers(left, right)
@rule(strat=strategies)
def repr_is_good(self, strat):
assert u' at 0x' not in repr(strat)
@rule(strat=strategies)
def template_upper_bound_is_valid(self, strat):
ub = strat.template_upper_bound
assert ub >= 0
if isinstance(ub, float):
assert math.isinf(ub)
else:
assert isinstance(ub, int)
@rule(strat=strategies, r=randoms())
def can_find_as_many_templates_as_size(self, strat, r):
tempstrat = templates_for(strat)
n = min(10, strat.template_upper_bound)
found = []
with Settings(verbosity=Verbosity.quiet, timeout=2.0):
for i in range(n):
try:
x = find(
tempstrat,
lambda t: t not in found,
random=r,
)
except:
print(u'Exception at %d/%d. template_upper_bound=%r' %
(i, n, strat.template_upper_bound))
raise
found.append(x)
@given(fractions(), fractions(), fractions())
def test_fraction_addition_is_well_behaved(x, y, z):
assert x + y + z == y + x + z
def test_decimals_include_nan():
find_any(decimals(), lambda x: x.is_nan())
def test_decimals_include_inf():
find_any(decimals(), lambda x: x.is_infinite())
@given(decimals(allow_nan=False))
def test_decimals_can_disallow_nan(x):
assert not x.is_nan()
@given(decimals(allow_infinity=False))
def test_decimals_can_disallow_inf(x):
assert not x.is_infinite()
@pytest.mark.parametrize("places", range(10))
def test_decimals_have_correct_places(places):
@given(decimals(0, 10, allow_nan=False, places=places))
def inner_tst(n):
assert n.as_tuple().exponent == -places
from numpy.testing import assert_allclose
def unary_func(x):
return x**2
def binary_func(x, y):
return x * y**2
def ternary_func(x, y, z):
return z * x * y**2
@given(x=st.decimals(-100, 100))
def test_numerical_derivative(x):
num_der = numerical_derivative(unary_func, x)
assert np.isclose(float(num_der), float(x) * 2.)
@given(st.data())
def test_numerical_gradient_no_broadcast(data):
x = data.draw(
hnp.arrays(shape=hnp.array_shapes(max_side=3, max_dims=3),
dtype=float,
elements=st.floats(-100, 100)))
y = data.draw(
hnp.arrays(shape=x.shape, dtype=float, elements=st.floats(-100, 100)))
class HypothesisSpec(RuleBasedStateMachine):
def __init__(self):
super(HypothesisSpec, self).__init__()
self.database = None
strategies = Bundle(u'strategy')
strategy_tuples = Bundle(u'tuples')
objects = Bundle(u'objects')
basic_data = Bundle(u'basic')
varied_floats = Bundle(u'varied_floats')
def teardown(self):
self.clear_database()
@rule()
def clear_database(self):
if self.database is not None:
self.database.close()
self.database = None
@rule()
def set_database(self):
self.teardown()
self.database = ExampleDatabase()
@rule(strat=strategies, r=integers(), max_shrinks=integers(0, 100))
def find_constant_failure(self, strat, r, max_shrinks):
with settings(
verbosity=Verbosity.quiet,
max_examples=1,
min_satisfying_examples=0,
database=self.database,
max_shrinks=max_shrinks,
):
@given(strat)
@seed(r)
def test(x):
assert False
try:
test()
except (AssertionError, FailedHealthCheck):
pass
@rule(strat=strategies,
r=integers(),
p=floats(0, 1),
max_examples=integers(1, 10),
max_shrinks=integers(1, 100))
def find_weird_failure(self, strat, r, max_examples, p, max_shrinks):
with settings(
verbosity=Verbosity.quiet,
max_examples=max_examples,
min_satisfying_examples=0,
database=self.database,
max_shrinks=max_shrinks,
):
@given(strat)
@seed(r)
def test(x):
assert Random(hashlib.md5(
repr(x).encode(u'utf-8')).digest()).random() <= p
try:
test()
except (AssertionError, FailedHealthCheck):
pass
@rule(target=strategies,
spec=sampled_from((
integers(),
booleans(),
floats(),
complex_numbers(),
fractions(),
decimals(),
text(),
binary(),
none(),
tuples(),
)))
def strategy(self, spec):
return spec
@rule(target=strategies, values=lists(integers() | text(), min_size=1))
def sampled_from_strategy(self, values):
return sampled_from(values)
@rule(target=strategies, spec=strategy_tuples)
def strategy_for_tupes(self, spec):
return tuples(*spec)
@rule(target=strategies,
source=strategies,
level=integers(1, 10),
mixer=text())
def filtered_strategy(s, source, level, mixer):
def is_good(x):
return bool(
Random(
hashlib.md5(
(mixer + repr(x)).encode(u'utf-8')).digest()).randint(
0, level))
return source.filter(is_good)
@rule(target=strategies, elements=strategies)
def list_strategy(self, elements):
return lists(elements, average_size=AVERAGE_LIST_LENGTH)
@rule(target=strategies, l=strategies, r=strategies)
def or_strategy(self, l, r):
return l | r
@rule(target=varied_floats, source=floats())
def float(self, source):
return source
@rule(target=varied_floats,
source=varied_floats,
offset=integers(-100, 100))
def adjust_float(self, source, offset):
return int_to_float(clamp(0, float_to_int(source) + offset, 2**64 - 1))
@rule(target=strategies, left=varied_floats, right=varied_floats)
def float_range(self, left, right):
for f in (math.isnan, math.isinf):
for x in (left, right):
assume(not f(x))
left, right = sorted((left, right))
assert left <= right
return floats(left, right)
@rule(target=strategies,
source=strategies,
result1=strategies,
result2=strategies,
mixer=text(),
p=floats(0, 1))
def flatmapped_strategy(self, source, result1, result2, mixer, p):
assume(result1 is not result2)
def do_map(value):
rep = repr(value)
random = Random(
hashlib.md5((mixer + rep).encode(u'utf-8')).digest())
if random.random() <= p:
return result1
else:
return result2
return source.flatmap(do_map)
@rule(target=strategies, value=objects)
def just_strategy(self, value):
return just(value)
@rule(target=strategy_tuples, source=strategies)
def single_tuple(self, source):
return (source, )
@rule(target=strategy_tuples, l=strategy_tuples, r=strategy_tuples)
def cat_tuples(self, l, r):
return l + r
@rule(target=objects, strat=strategies)
def get_example(self, strat):
try:
strat.example()
except NoExamples:
# Because of filtering some strategies we look for don't actually
# have any examples.
pass
@rule(target=strategies, left=integers(), right=integers())
def integer_range(self, left, right):
left, right = sorted((left, right))
return integers(left, right)
@rule(strat=strategies)
def repr_is_good(self, strat):
assert u' at 0x' not in repr(strat)
@given(ds.fractions(min_value=-1, max_value=1, max_denominator=1000))
def test_fraction_is_in_bounds(x):
assert -1 <= x <= 1 and abs(x.denominator) <= 1000
@given(ds.fractions(min_value=fractions.Fraction(1, 2)))
def test_fraction_gt_positive(x):
assert fractions.Fraction(1, 2) <= x
@given(ds.fractions(max_value=fractions.Fraction(-1, 2)))
def test_fraction_lt_negative(x):
assert x <= fractions.Fraction(-1, 2)
@given(ds.decimals(min_value=-1.5, max_value=1.5))
def test_decimal_is_in_bounds(x):
# decimal.Decimal("-1.5") == -1.5 (not explicitly testable in py2.6)
assert decimal.Decimal('-1.5') <= x <= decimal.Decimal('1.5')
def test_float_can_find_max_value_inf():
assert find(
ds.floats(max_value=float('inf')), lambda x: math.isinf(x)
) == float('inf')
assert find(
ds.floats(min_value=0.0), lambda x: math.isinf(x)) == float('inf')
def test_float_can_find_min_value_inf():
find(ds.floats(), lambda x: x < 0 and math.isinf(x))
def _decimal_strategy(min_value: NumberType = None,
max_value: NumberType = None,
places: int = 10) -> SearchStrategy:
min_value, max_value = _check_numeric_bounds("int128", min_value,
max_value, Fixed)
return st.decimals(min_value=min_value, max_value=max_value, places=places)
class TransactionTestCase(unittest.TestCase):
@given(st.decimals(), datetimes(),
st.dictionaries(keys=st.text(), values=st.uuids()))
def test_get_transaction_value(self, value, timestamp, metadata):
transaction = cashflow.Transaction(value, timestamp, metadata)
if math.isnan(value):
assert math.isnan(transaction.value)
else:
assert transaction.value == value
@given(st.decimals(), datetimes(),
st.dictionaries(keys=st.text(), values=st.uuids()))
def test_get_transaction_timestamp(self, value, timestamp, metadata):
transaction = cashflow.Transaction(value, timestamp, metadata)
assert transaction.timestamp == timestamp
@given(st.decimals(), datetimes(),
st.dictionaries(keys=st.text(), values=st.uuids()))
def test_get_transaction_metadata(self, value, timestamp, metadata):
transaction = cashflow.Transaction(value, timestamp, metadata)
assert transaction.metadata == metadata
@given(st.decimals(), datetimes(),
st.dictionaries(keys=st.text(), values=st.uuids()))
def test_transaction_serialization(self, value, timestamp, metadata):
transaction = cashflow.Transaction(value, timestamp, metadata)
serialized_data = transaction.serialize()
expected_data = {
'value': transaction.value,
'timestamp': transaction.timestamp,
'metadata': transaction.metadata
}
assert expected_data == serialized_data
@given(st.decimals(), st.dictionaries(keys=st.text(), values=st.uuids()))
def test_compare_two_transactions(self, value, metadata):
# The difference is the timestamp...
transaction1 = cashflow.Transaction(
value, datetime.datetime.now(), metadata
)
transaction2 = cashflow.Transaction(
value, datetime.datetime.now(), metadata
)
assert transaction1 == transaction1
assert transaction1 != transaction2
# Using date instead datetime to ensure different objects with the same
# data will be considered as equal.
transaction1 = cashflow.Transaction(
value, datetime.date.today(), metadata
)
transaction2 = cashflow.Transaction(
value, datetime.date.today(), metadata
)
assert transaction1 == transaction1
assert transaction1 == transaction2
@given(st.decimals(), datetimes(),
st.dictionaries(keys=st.text(), values=st.uuids()))
def test_compare_transaction_to_other_object(self, value, timestamp, metadata): # noqa
transaction = cashflow.Transaction(value, timestamp, metadata)
with pytest.raises(RuntimeError) as cm:
transaction == 'foo bar baz'
expected_message = '{!r} is not an instance of Transaction'.format(
'foo bar baz'
)
assert str(cm.value) == expected_message
@given(ds.fractions(min_value=-1, max_value=1, max_denominator=1000))
def test_fraction_is_in_bounds(x):
assert -1 <= x <= 1 and abs(x.denominator) <= 1000
@given(ds.fractions(min_value=fractions.Fraction(1, 2)))
def test_fraction_gt_positive(x):
assert fractions.Fraction(1, 2) <= x
@given(ds.fractions(max_value=fractions.Fraction(-1, 2)))
def test_fraction_lt_negative(x):
assert x <= fractions.Fraction(-1, 2)
@given(ds.decimals(min_value=-1.5, max_value=1.5))
def test_decimal_is_in_bounds(x):
assert decimal.Decimal("-1.5") <= x <= decimal.Decimal("1.5")
def test_float_can_find_max_value_inf():
assert minimal(ds.floats(max_value=math.inf), lambda x: math.isinf(x)) == float(
"inf"
)
assert minimal(ds.floats(min_value=0.0), lambda x: math.isinf(x)) == math.inf
def test_float_can_find_min_value_inf():
minimal(ds.floats(), lambda x: x < 0 and math.isinf(x))
minimal(ds.floats(min_value=-math.inf, max_value=0.0), lambda x: math.isinf(x))
floats(),
floats(min_value=-2.0),
floats(),
floats(max_value=-0.0),
floats(),
floats(min_value=0.0),
floats(min_value=3.14, max_value=3.14),
text(),
binary(),
booleans(),
tuples(booleans(), booleans()),
frozensets(integers()),
sets(frozensets(booleans())),
complex_numbers(),
fractions(),
decimals(),
lists(lists(booleans())),
lists(lists(booleans(), average_size=100)),
lists(floats(0.0, 0.0), average_size=1.0),
ordered_pair,
constant_list(integers()),
streaming(integers()).map(lambda x: list(x[:2]) and x),
integers().filter(lambda x: abs(x) > 100),
floats(min_value=-sys.float_info.max, max_value=sys.float_info.max),
none(),
randoms(),
tuples().flatmap(lambda x: EvalledIntStream),
templates_for(integers(min_value=0, max_value=0).flatmap(lambda x: integers(min_value=0, max_value=0))),
booleans().flatmap(lambda x: booleans() if x else complex_numbers()),
recursive(base=booleans(), extend=lambda x: lists(x, max_size=3), max_leaves=10),
]
string_value_as_bytes = codecs.encode(string_value, 'utf8')
expected_value = (encode_uint_256(len(string_value_as_bytes)) +
(zpad_right(
string_value_as_bytes,
ceil32(len(string_value_as_bytes)),
) if string_value else b''))
encoded_value = encoder(string_value)
assert encoded_value == expected_value
@settings(max_examples=250)
@given(
value=st.one_of(st.integers(), st.decimals(), st.none()),
value_bit_size=st.integers(min_value=1, max_value=32).map(lambda v: v * 8),
frac_places=st.integers(min_value=1, max_value=80),
data_byte_size=st.integers(min_value=0, max_value=32),
)
@example(value=decimal.Decimal('5.33'),
value_bit_size=8,
frac_places=1,
data_byte_size=1)
def test_encode_unsigned_fixed(value, value_bit_size, frac_places,
data_byte_size):
if value_bit_size > data_byte_size * 8:
pattern = r'Value byte size exceeds data size'
with pytest.raises(ValueError, match=pattern):
UnsignedFixedEncoder(
value_bit_size=value_bit_size,
# # Most of this work is copyright (C) 2013-2015 David R. MacIver # ([email protected]), but it contains contributions by others. See # https://github.com/DRMacIver/hypothesis/blob/master/CONTRIBUTING.rst for a # full list of people who may hold copyright, and consult the git log if you # need to determine who owns an individual contribution. # # 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 from hypothesis import given, assume from tests.common.utils import fails from hypothesis.strategies import decimals, fractions, float_to_decimal @fails @given(decimals()) def test_all_decimals_can_be_exact_floats(x): assume(x.is_finite()) assert float_to_decimal(float(x)) == x @given(fractions(), fractions(), fractions()) def test_fraction_addition_is_well_behaved(x, y, z): assert x + y + z == y + x + z
@given(fractions(), fractions(), fractions())
def test_fraction_addition_is_well_behaved(x, y, z):
assert x + y + z == y + x + z
def test_decimals_include_nan():
find_any(decimals(), lambda x: x.is_nan())
def test_decimals_include_inf():
find_any(decimals(), lambda x: x.is_infinite())
@given(decimals(allow_nan=False))
def test_decimals_can_disallow_nan(x):
assert not x.is_nan()
@given(decimals(allow_infinity=False))
def test_decimals_can_disallow_inf(x):
assert not x.is_infinite()
@pytest.mark.parametrize('places', range(10))
def test_decimals_have_correct_places(places):
@given(decimals(0, 10, allow_nan=False, places=places))
def inner_tst(n):
assert n.as_tuple().exponent == -places
inner_tst()
raise ResolutionFailed(
"Could not resolve %s to a strategy; consider using "
"register_type_strategy" % (empty or thing,)
)
return st.one_of(strategies)
_global_type_lookup = {
# Types with core Hypothesis strategies
type(None): st.none(),
bool: st.booleans(),
int: st.integers(),
float: st.floats(),
complex: st.complex_numbers(),
fractions.Fraction: st.fractions(),
decimal.Decimal: st.decimals(),
text_type: st.text(),
binary_type: st.binary(),
datetime.datetime: st.datetimes(),
datetime.date: st.dates(),
datetime.time: st.times(),
datetime.timedelta: st.timedeltas(),
uuid.UUID: st.uuids(),
tuple: st.builds(tuple),
list: st.builds(list),
set: st.builds(set),
frozenset: st.builds(frozenset),
dict: st.builds(dict),
type(lambda: None): st.functions(),
# Built-in types
type(Ellipsis): st.just(Ellipsis),
one_of(integers(), tuples(booleans())),
sampled_from(range(10)),
one_of(just('a'), just('b'), just('c')),
sampled_from(('a', 'b', 'c')),
integers(),
integers(min_value=3),
integers(min_value=(-2 ** 32), max_value=(2 ** 64)),
floats(), floats(min_value=-2.0, max_value=3.0),
floats(min_value=3.14, max_value=3.14),
text(), binary(),
booleans(),
tuples(booleans(), booleans()),
frozensets(integers()),
complex_numbers(),
fractions(),
decimals(),
lists(lists(booleans())),
lists(lists(booleans(), average_size=100)),
lists(floats(0.0, 0.0), average_size=1.0),
ordered_pair, constant_list(integers()),
streaming(integers()).map(lambda x: list(x[:2]) and x),
integers().filter(lambda x: abs(x) > 100),
floats(min_value=-sys.float_info.max, max_value=sys.float_info.max),
none(), randoms(),
tuples().flatmap(lambda x: EvalledIntStream),
templates_for(integers(min_value=0, max_value=0).flatmap(
lambda x: integers(min_value=0, max_value=0))),
booleans().flatmap(lambda x: booleans() if x else complex_numbers()),
]
def test_decimals():
assert minimal(ds.decimals(), lambda f: f.is_finite() and f >= 1) == 1
@given(fractions(), fractions(), fractions())
def test_fraction_addition_is_well_behaved(x, y, z):
assert x + y + z == y + x + z
def test_decimals_include_nan():
find_any(decimals(), lambda x: x.is_nan())
def test_decimals_include_inf():
find_any(decimals(), lambda x: x.is_infinite(),
settings(max_examples=10**6))
@given(decimals(allow_nan=False))
def test_decimals_can_disallow_nan(x):
assert not x.is_nan()
@given(decimals(allow_infinity=False))
def test_decimals_can_disallow_inf(x):
assert not x.is_infinite()
@pytest.mark.parametrize("places", range(10))
def test_decimals_have_correct_places(places):
@given(decimals(0, 10, allow_nan=False, places=places))
def inner_tst(n):
assert n.as_tuple().exponent == -places
def _for_decimal(field):
bound = Decimal(10**field.max_digits - 1) / (10**field.decimal_places)
return st.decimals(min_value=-bound,
max_value=bound,
places=field.decimal_places)
def test_all_decimals_can_be_exact_floats():
find_any(
decimals(),
lambda x: assume(x.is_finite()) and decimal.Decimal(float(x)) == x)
def test_decimals_have_correct_places(places):
@given(decimals(0, 10, allow_nan=False, places=places))
def inner_tst(n):
assert n.as_tuple().exponent == -places
inner_tst()
def test_decimals_include_nan():
find_any(decimals(), lambda x: x.is_nan())
def test_all_decimals_can_be_exact_floats():
find_any(
decimals(), lambda x: assume(x.is_finite()) and decimal.Decimal(float(x)) == x
)
encsiopacket,
)
import tests # pylint: disable=unused-import
#---- Constants ----------------------------------------------------------
__all__ = ()
_LOGGER = logging.getLogger(__name__)
# We keep out NaN because NaN == NaN is False, which frustrates our
# comparisons of deep JSON-ified objects; also, we don't allow numbers or
# nulls in the top level because the Socket.IO packet encoding does not
# contemplate such things (of course we needed another data encoding
# format, didn't we?)
_JSON_CHILDREN = strategies.recursive(strategies.decimals().filter(lambda x: not x.is_nan()) | strategies.booleans() | strategies.text() | strategies.none(), lambda children: strategies.lists(children) | strategies.dictionaries(strategies.text(), children), max_leaves=5)
_JSON = strategies.one_of(strategies.booleans(), strategies.text(), strategies.lists(_JSON_CHILDREN), strategies.dictionaries(strategies.text(), _JSON_CHILDREN))
#---- Classes ------------------------------------------------------------
#=========================================================================
class PacketsTestCase(t_unittest.TestCase):
longMessage = True
#---- Public constants -----------------------------------------------
BAD_TRUNC_PACKET = ''
BAD_TYPE = bytes(b'\x2a')
BAD_TYPE_STR_PACKET = BAD_TYPE.decode('latin_1')
BAD_PACKET_STR_BIN_ACK = SIO_TYPE_BIN_ACK.decode('utf_8')
def test_decimals_include_inf():
find_any(decimals(), lambda x: x.is_infinite())
def test_non_float_decimal():
find(
ds.decimals(),
lambda d: d.is_finite() and float_to_decimal(float(d)) != d)
# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the
# source code or documentation are not subject to the GNU General Public
# License and may only be used or replicated with the express permission of
# Red Hat, Inc.
#
# Red Hat Author(s): Anne Mulhern <*****@*****.**>
""" Utilities for testing. """
from hypothesis import strategies
from justbytes import Size
from justbytes import UNITS
NUMBERS_STRATEGY = strategies.one_of(
strategies.integers(),
strategies.fractions(),
strategies.decimals().filter(lambda x: x.is_finite()),
)
SIZE_STRATEGY = strategies.builds(
Size,
strategies.one_of(
NUMBERS_STRATEGY,
strategies.builds(
str,
NUMBERS_STRATEGY
)
),
strategies.sampled_from(UNITS())
)
def test_non_float_decimal():
find(ds.decimals(), lambda d: ds.float_to_decimal(float(d)) != d)
def test_decimals_include_inf():
find_any(decimals(), lambda x: x.is_infinite(),
settings(max_examples=10**6))
TestNestedSets = strategy_test_suite(
frozensets(frozensets(integers(), max_size=2)))
TestMisc1 = strategy_test_suite(
fixed_dictionaries({(2, -374): frozensets(none())}))
TestMisc2 = strategy_test_suite(
fixed_dictionaries({b'': frozensets(integers())}))
TestMisc3 = strategy_test_suite(tuples(sets(none() | text())))
TestEmptyTuple = strategy_test_suite(tuples())
TestEmptyList = strategy_test_suite(lists(max_size=0))
TestEmptySet = strategy_test_suite(sets(max_size=0))
TestEmptyFrozenSet = strategy_test_suite(frozensets(max_size=0))
TestEmptyDict = strategy_test_suite(fixed_dictionaries({}))
TestDecimal = strategy_test_suite(decimals())
TestFraction = strategy_test_suite(fractions())
TestNonEmptyLists = strategy_test_suite(lists(integers()).filter(bool))
TestNoneLists = strategy_test_suite(lists(none()))
TestConstantLists = strategy_test_suite(
integers().flatmap(lambda i: lists(just(i))))
TestListsWithUniqueness = strategy_test_suite(
lists(lists(integers()), unique_by=lambda x: tuple(sorted(x))))
TestOrderedPairs = strategy_test_suite(
integers(min_value=1, max_value=200).flatmap(
lambda e: tuples(integers(min_value=0, max_value=e - 1), just(e))))
def define_decimal_strategy(specifier, settings):
return st.decimals()
def test_decimals_have_correct_places(places):
@given(decimals(0, 10, allow_nan=False, places=places))
def inner_tst(n):
assert n.as_tuple().exponent == -places
inner_tst()
def _for_decimal(field):
bound = Decimal(10 ** field.max_digits - 1) / (10 ** field.decimal_places)
return st.decimals(min_value=-bound, max_value=bound, places=field.decimal_places)
# 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 math
from hypothesis import given, assume
from tests.common.utils import fails, fails_with
from hypothesis.strategies import decimals, fractions, float_to_decimal
@fails
@given(decimals())
def test_all_decimals_can_be_exact_floats(x):
assume(x.is_finite())
assert float_to_decimal(float(x)) == x
@given(fractions(), fractions(), fractions())
def test_fraction_addition_is_well_behaved(x, y, z):
assert x + y + z == y + x + z
@fails_with(AssertionError)
@given(decimals())
def test_decimals_include_nan(x):
assert not math.isnan(x)
TestNestedSets = strategy_test_suite(
frozensets(frozensets(integers(), max_size=2)))
TestMisc1 = strategy_test_suite(fixed_dictionaries(
{(2, -374): frozensets(none())}))
TestMisc2 = strategy_test_suite(fixed_dictionaries(
{b'': frozensets(integers())}))
TestMisc3 = strategy_test_suite(tuples(sets(none() | text())))
TestEmptyTuple = strategy_test_suite(tuples())
TestEmptyList = strategy_test_suite(lists(max_size=0))
TestEmptySet = strategy_test_suite(sets(max_size=0))
TestEmptyFrozenSet = strategy_test_suite(frozensets(max_size=0))
TestEmptyDict = strategy_test_suite(fixed_dictionaries({}))
TestDecimal = strategy_test_suite(decimals())
TestFraction = strategy_test_suite(fractions())
TestNonEmptyLists = strategy_test_suite(
lists(integers(), average_size=5.0).filter(bool)
)
TestNoneLists = strategy_test_suite(lists(none(), average_size=5.0))
TestConstantLists = strategy_test_suite(
integers().flatmap(lambda i: lists(just(i), average_size=5.0))
)
TestListsWithUniqueness = strategy_test_suite(
lists(
lists(integers(), average_size=5.0),
jsontype = hs.sampled_from([
"null",
"boolean",
"number",
"integer",
"string",
"array",
"object",
])
jsontypes = hs.lists(jsontype, unique=True)
jsonnull = hs.none()
jsonboolean = hs.booleans()
jsonnumber = hs.integers() | \
hs.floats(allow_nan=False, allow_infinity=False) | \
hs.decimals(allow_nan=False, allow_infinity=False)
jsonnumber_nodecimal = hs.integers() | \
hs.floats(allow_nan=False, allow_infinity=False)
jsoninteger = hs.integers()
jsonstring = hs.text()
jsonleaf = jsonnull | jsonboolean | jsonnumber | jsonstring
jsonleaf_nodecimal = jsonnull | jsonboolean | jsonnumber_nodecimal | jsonstring
json = hs.recursive(
base=jsonleaf,
extend=lambda children: hs.lists(children) | hs.dictionaries(
jsonstring, children),
max_leaves=10,
)
json_nodecimal = hs.recursive(
base=jsonleaf_nodecimal,
def scale_places(places):
"""
Scaling must happen with adequate precision. Otherwise, we get bounds
checking errors.
"""
def f(x):
with decimal.localcontext(abi_decimal_context):
return x / 10 ** places
return f
ufixed_size_tuples = st.shared(fixed_sizes, key='ufixed_size_tuples')
ufixed_strs = ufixed_size_tuples.map(join_with_x).map('ufixed{}'.format)
ufixed_values = ufixed_size_tuples.flatmap(lambda sz: st.decimals(
min_value=0,
max_value=2 ** sz[0] - 1,
places=0,
).map(scale_places(sz[1])))
fixed_size_tuples = st.shared(fixed_sizes, key='fixed_size_tuples')
fixed_strs = fixed_size_tuples.map(join_with_x).map('fixed{}'.format)
fixed_values = fixed_size_tuples.flatmap(lambda sz: st.decimals(
min_value=-2 ** (sz[0] - 1),
max_value=2 ** (sz[0] - 1) - 1,
places=0,
).map(scale_places(sz[1])))
fixed_bytes_sizes = st.shared(bytes_sizes, key='fixed_bytes_sizes')
fixed_bytes_strs = fixed_bytes_sizes.map('bytes{}'.format)
fixed_bytes_values = fixed_bytes_sizes.flatmap(lambda n: st.binary(
min_size=n,
class UtilsTestCase(TestCase):
@classmethod
def setUpTestData(cls):
cls.factory = RequestFactory()
def test_get_client_ip(self):
request = self.factory.get('/some/route', REMOTE_ADDR="1.2.3.4")
self.assertEqual(get_client_ip(request), "1.2.3.4")
# communicate with perma payments
@patch('perma.utils.encrypt_for_perma_payments', autospec=True)
@patch('perma.utils.stringify_data', autospec=True)
def test_prep_for_perma_payments(self, stringify, encrypt):
stringify.return_value = sentinel.stringified
encrypt.return_value = sentinel.encrypted
assert prep_for_perma_payments({}) == sentinel.encrypted
stringify.assert_called_once_with({})
encrypt.assert_called_once_with(sentinel.stringified)
def test_process_perma_payments_transmission_encrypted_data_not_in_post(self):
with self.assertRaises(InvalidTransmissionException) as excinfo:
assert process_perma_payments_transmission({}, [])
assert 'No encrypted_data in POST.' in str(excinfo.exception)
def test_process_perma_payments_transmission_encrypted_data_none(self):
with self.assertRaises(InvalidTransmissionException) as excinfo:
assert process_perma_payments_transmission({'encrypted_data': None}, [])
assert 'No encrypted_data in POST.' in str(excinfo.exception)
def test_process_perma_payments_transmission_encrypted_data_empty(self):
with self.assertRaises(InvalidTransmissionException) as excinfo:
assert process_perma_payments_transmission({'encrypted_data': ''}, [])
assert 'No encrypted_data in POST.' in str(excinfo.exception)
@patch('perma.utils.decrypt_from_perma_payments', autospec=True)
def test_process_perma_payments_transmission_encryption_problem(self, decrypt):
decrypt.side_effect = SentinelException
with self.assertRaises(InvalidTransmissionException) as excinfo:
process_perma_payments_transmission(spoof_perma_payments_post(), [])
assert 'SentinelException' in str(excinfo.exception)
assert decrypt.call_count == 1
@patch('perma.utils.unstringify_data', autospec=True)
@patch('perma.utils.decrypt_from_perma_payments', autospec=True)
def test_process_perma_payments_transmission_not_valid_json(self, decrypt, unstringify):
unstringify.side_effect = SentinelException
with self.assertRaises(InvalidTransmissionException) as excinfo:
process_perma_payments_transmission(spoof_perma_payments_post(), [])
assert 'SentinelException' in str(excinfo.exception)
assert unstringify.call_count == 1
@patch('perma.utils.unstringify_data', autospec=True)
@patch('perma.utils.decrypt_from_perma_payments', autospec=True)
def test_process_perma_payments_transmission_missing_timestamp(self, decrypt, unstringify):
post = spoof_perma_payments_post()
del post['encrypted_data']['timestamp']
unstringify.return_value = post['encrypted_data']
with self.assertRaises(InvalidTransmissionException) as excinfo:
process_perma_payments_transmission(post, [])
assert 'Missing timestamp in data.' in str(excinfo.exception)
@patch('perma.utils.is_valid_timestamp', autospec=True)
@patch('perma.utils.unstringify_data', autospec=True)
@patch('perma.utils.decrypt_from_perma_payments', autospec=True)
def test_process_perma_payments_transmission_expired_timestamp(self, decrypt, unstringify, timestamp):
post = spoof_perma_payments_post()
unstringify_data.return_value = post['encrypted_data']
timestamp.return_value = False
with self.assertRaises(InvalidTransmissionException) as excinfo:
process_perma_payments_transmission(post, [])
assert 'Expired timestamp in data.' in str(excinfo.exception)
@patch('perma.utils.is_valid_timestamp', autospec=True)
@patch('perma.utils.unstringify_data', autospec=True)
@patch('perma.utils.decrypt_from_perma_payments', autospec=True)
def test_process_perma_payments_transmission_happy_path(self, decrypt, unstringify, timestamp):
post = spoof_perma_payments_post()
decrypt.return_value = sentinel.decrypted
unstringify.return_value = post['encrypted_data']
timestamp.return_value = True
assert process_perma_payments_transmission(post, ['desired_field']) == {'desired_field': 'desired_field'}
decrypt.assert_called_once_with(post['encrypted_data'])
unstringify.assert_called_once_with(sentinel.decrypted)
timestamp.assert_called_once_with(post['encrypted_data']['timestamp'], settings.PERMA_PAYMENTS_TIMESTAMP_MAX_AGE_SECONDS)
# perma-payments helpers
def test_retrieve_fields_returns_only_specified_fields(self):
one_two_three = one_two_three_dict()
assert retrieve_fields(one_two_three, ['one']) == {'one': 'one'}
assert retrieve_fields(one_two_three, ['two']) == {'two': 'two'}
assert retrieve_fields(one_two_three, ['one', 'three']) == {'one': 'one', 'three': 'three'}
def test_retrieve_fields_raises_if_field_absent(self):
one_two_three = one_two_three_dict()
with self.assertRaises(InvalidTransmissionException):
retrieve_fields(one_two_three, ['four'])
def test_is_valid_timestamp(self):
max_age = 60
now = datetime.utcnow().timestamp()
still_valid = (datetime.utcnow() + timedelta(seconds=max_age)).timestamp()
invalid = (datetime.utcnow() + timedelta(seconds=max_age * 2)).timestamp()
self.assertTrue(is_valid_timestamp(now, max_age))
self.assertTrue(is_valid_timestamp(still_valid, max_age))
self.assertFalse(is_valid_timestamp(invalid, max_age))
preserved = text(alphabet=characters(min_codepoint=1, blacklist_categories=('Cc', 'Cs'))) | integers() | booleans()
@given(preserved | dictionaries(keys=text(alphabet=characters(min_codepoint=1, blacklist_categories=('Cc', 'Cs'))), values=preserved))
def test_stringify_and_unstringify_data_types_preserved(self, data):
assert unstringify_data(stringify_data(data)) == data
oneway = decimals(places=2, min_value=decimal.Decimal(0.00), allow_nan=False, allow_infinity=False) | datetimes() | dates() | uuids()
@given(oneway | dictionaries(keys=text(alphabet=characters(min_codepoint=1, blacklist_categories=('Cc', 'Cs'))), values=oneway))
def test_stringify_types_lost(self, data):
# Some types can be serialized, but not recovered from strings by json.loads.
# Instead, you have to manually attempt to convert, by field, if you are expecting one of these types.
#
# If something can't be serialized, or unserialized,
# this test will raise an Exception, rather than failing with an assertion error.
unstringify_data(stringify_data(data))
@given(binary())
def test_perma_payments_encrypt_and_decrypt(self, b):
ci = encrypt_for_perma_payments(b)
assert decrypt_from_perma_payments(ci) == b
@given(ds.fractions(min_value=-1, max_value=1, max_denominator=1000))
def test_fraction_is_in_bounds(x):
assert -1 <= x <= 1 and abs(x.denominator) <= 1000
@given(ds.fractions(min_value=fractions.Fraction(1, 2)))
def test_fraction_gt_positive(x):
assert fractions.Fraction(1, 2) <= x
@given(ds.fractions(max_value=fractions.Fraction(-1, 2)))
def test_fraction_lt_negative(x):
assert x <= fractions.Fraction(-1, 2)
@given(ds.decimals(min_value=-1.5, max_value=1.5, allow_nan=False))
def test_decimal_is_in_bounds(x):
# decimal.Decimal("-1.5") == -1.5 (not explicitly testable in py2.6)
assert decimal.Decimal("-1.5") <= x <= decimal.Decimal("1.5")
def test_float_can_find_max_value_inf():
assert minimal(ds.floats(max_value=float("inf")), lambda x: math.isinf(x)) == float(
"inf"
)
assert minimal(ds.floats(min_value=0.0), lambda x: math.isinf(x)) == float("inf")
def test_float_can_find_min_value_inf():
minimal(ds.floats(), lambda x: x < 0 and math.isinf(x))
minimal(ds.floats(min_value=float("-inf"), max_value=0.0), lambda x: math.isinf(x))
assert Integer(z).num == z
@given(st.floats(allow_nan=False,
allow_infinity=False))
def test_init_non_nan_non_inf_float(z):
assert Integer(z).num == int(z)
@given(st.just(float("nan")))
def test_init_nan_float_raises_value_error(z):
with pt.raises(ValueError):
Integer(z)
@given(st.decimals(allow_nan=False,
allow_infinity=False))
def test_init_non_nan_non_inf_decimal(z):
assert Integer(z).num == int(z)
@given(st.just(Decimal("nan")))
def test_init_nan_decimal_raises_value_error(z):
with pt.raises(ValueError):
Integer(z)
@given(st.text(alphabet=string.digits,
min_size=1))
def test_init_numeric_string(z):
assert Integer(z).num == int(z)
def test_non_float_decimal():
minimal(ds.decimals(), lambda d: d.is_finite() and decimal.Decimal(float(d)) != d)
"min_size": st.integers(min_value=0, max_value=100),
"max_size": st.integers(min_value=0, max_value=100) | st.none(),
}
values = st.integers() | st.text()
Strategies = st.recursive(
st.one_of(
st.sampled_from([
st.none(),
st.booleans(),
st.randoms(use_true_random=True),
st.complex_numbers(),
st.randoms(use_true_random=True),
st.fractions(),
st.decimals(),
]),
st.builds(st.just, values),
st.builds(st.sampled_from, st.lists(values, min_size=1)),
builds_ignoring_invalid(st.floats, st.floats(), st.floats()),
),
lambda x: st.one_of(
builds_ignoring_invalid(st.lists, x, **size_strategies),
builds_ignoring_invalid(st.sets, x, **size_strategies),
builds_ignoring_invalid(lambda v: st.tuples(*v), st.lists(x)),
builds_ignoring_invalid(lambda v: st.one_of(*v), st.lists(x,
min_size=1)),
builds_ignoring_invalid(
st.dictionaries,
x,
x,
size_strategies = dict(
min_size=st.integers(min_value=0, max_value=100) | st.none(),
max_size=st.integers(min_value=0, max_value=100) | st.none(),
average_size=st.floats(min_value=0.0, max_value=100.0) | st.none()
)
values = st.integers() | st.text(average_size=2.0)
Strategies = st.recursive(
st.one_of(
st.sampled_from([
st.none(), st.booleans(), st.randoms(), st.complex_numbers(),
st.randoms(), st.fractions(), st.decimals(),
]),
st.builds(st.just, values),
st.builds(st.sampled_from, st.lists(values, min_size=1)),
builds_ignoring_invalid(st.floats, st.floats(), st.floats()),
),
lambda x: st.one_of(
builds_ignoring_invalid(st.lists, x, **size_strategies),
builds_ignoring_invalid(st.sets, x, **size_strategies),
builds_ignoring_invalid(
lambda v: st.tuples(*v), st.lists(x, average_size=2.0)),
builds_ignoring_invalid(
lambda v: st.one_of(*v),
st.lists(x, average_size=2.0, min_size=1)),
builds_ignoring_invalid(
st.dictionaries, x, x,
import pytest
from hypothesis import given, settings
from hypothesis import strategies as st
from vyper import ast as vy_ast
from vyper import functions as vy_fn
denoms = [x for k in vy_fn.AsWeiValue.wei_denoms.keys() for x in k]
st_decimals = st.decimals(
min_value=0, max_value=2 ** 32, allow_nan=False, allow_infinity=False, places=10,
)
@pytest.mark.fuzzing
@settings(max_examples=10, deadline=1000)
@given(value=st_decimals)
@pytest.mark.parametrize("denom", denoms)
def test_decimal(get_contract, value, denom):
source = f"""
@external
def foo(a: decimal) -> uint256:
return as_wei_value(a, '{denom}')
"""
contract = get_contract(source)
vyper_ast = vy_ast.parse_to_ast(f"as_wei_value({value:.10f}, '{denom}')")
old_node = vyper_ast.body[0].value
new_node = vy_fn.AsWeiValue().evaluate(old_node)