def do_draw(self, data):
f = self.lower_bound + (
self.upper_bound - self.lower_bound) * d.fractional_float(data)
assume(self.lower_bound <= f <= self.upper_bound)
assume(sign(self.lower_bound) <= sign(f) <= sign(self.upper_bound))
# Special handling for bounds of -0.0
for g in [self.lower_bound, self.upper_bound]:
if f == g:
f = math.copysign(f, g)
return f
def do_draw(self, data):
def draw_float_bytes(random, n):
assert n == 8
i = random.randint(0, 20)
if i <= 2:
f = random.choice(self.critical)
else:
f = random.random() * (self.upper_bound - self.lower_bound) + self.lower_bound
return struct.pack(b"!d", f)
f = struct.unpack(b"!d", bytes(data.draw_bytes(8, draw_float_bytes)))[0]
assume(self.lower_bound <= f <= self.upper_bound)
assume(sign(self.lower_bound) <= sign(f) <= sign(self.upper_bound))
return f
def do_draw(self, data):
def draw_float_bytes(random, n):
assert n == 8
i = random.randint(0, 20)
if i <= 2:
f = random.choice(self.critical)
else:
f = random.random() * (self.upper_bound -
self.lower_bound) + self.lower_bound
return struct.pack(b'!d', f)
f = struct.unpack(b'!d', bytes(data.draw_bytes(8,
draw_float_bytes)))[0]
assume(self.lower_bound <= f <= self.upper_bound)
assume(sign(self.lower_bound) <= sign(f) <= sign(self.upper_bound))
return f
def float_order_key(k):
return (sign(k), k)
def float_order_key(k):
return (sign(k), k)
def test_sign_gives_good_type_error():
x = 'foo'
with pytest.raises(TypeError) as e:
sign(x)
assert repr(x) in e.value.args[0]
def test_sign_gives_good_type_error():
x = 'foo'
with pytest.raises(TypeError) as e:
sign(x)
assert repr(x) in e.value.args[0]
