def generate_uint_out_of_bounds_test_cases():
common_tags = ("atomic", "uint")
for bit_size in BIT_SIZES:
sedes = UInt(bit_size)
for value, tag in ((-1, "uint_underflow"), (2**bit_size,
"uint_overflow")):
yield render_test_case(
sedes=sedes,
valid=False,
value=value,
tags=common_tags + (tag, ),
)
def generate_uint_bounds_test_cases():
common_tags = ("atomic", "uint")
for bit_size in BIT_SIZES:
sedes = UInt(bit_size)
for value, tag in ((0, "uint_lower_bound"), (2**bit_size - 1,
"uint_upper_bound")):
serial = ssz.encode(value, sedes)
yield render_test_case(
sedes=sedes,
valid=True,
value=value,
serial=serial,
tags=common_tags + (tag, ),
)
def generate_random_uint_test_cases():
for bit_size in BIT_SIZES:
sedes = UInt(bit_size)
for _ in range(RANDOM_TEST_CASES_PER_BIT_SIZE):
value = random.randrange(0, 2**bit_size)
serial = ssz.encode(value, sedes)
# note that we need to create the tags in each loop cycle, otherwise ruamel will use
# YAML references which makes the resulting file harder to read
tags = tuple(["atomic", "uint", "random"])
yield render_test_case(
sedes=sedes,
valid=True,
value=value,
serial=serial,
tags=tags,
)
def generate_uint_wrong_length_test_cases():
for bit_size in BIT_SIZES:
sedes = UInt(bit_size)
lengths = sorted({
0,
sedes.length // 2,
sedes.length - 1,
sedes.length + 1,
sedes.length * 2,
})
for length in lengths:
for _ in range(RANDOM_TEST_CASES_PER_LENGTH):
tags = tuple(["atomic", "uint", "wrong_length"])
yield render_test_case(
sedes=sedes,
valid=False,
serial=get_random_bytes(length),
tags=tags,
)
