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import pytest
import collections
from pydantic import (
Field,
)
import eth_utils
from eth_utils.curried import (
apply_formatter_at_index,
apply_formatter_if,
apply_formatter_to_array,
apply_formatters_to_dict,
apply_formatters_to_sequence,
apply_key_map,
apply_one_of_formatters,
is_list_like,
is_string,
)
from eth_utils.pydantic import (
CamelModel,
)
def i_put_my_thing_down_flip_it_and_reverse_it(lyric):
return "".join(reversed(lyric))
CONDITION_FORMATTER_PAIRS = (
(is_list_like, tuple),
(is_string, i_put_my_thing_down_flip_it_and_reverse_it),
)
def test_format_dict_error():
with pytest.raises(ValueError) as exc_info:
apply_formatters_to_dict({"myfield": int}, {"myfield": "a"})
with pytest.raises(ValueError) as exc_info:
eth_utils.apply_formatters_to_dict({"myfield": int}, {"myfield": "a"})
assert "myfield" in str(exc_info.value)
class PydanticModel(CamelModel):
to_bytes_from_int: int = 1
to_int_from_bytes: bytes = b"\x02"
excluded_field: int = Field(default=3, exclude=True)
excluded_field_two: str = Field(default="4", exclude=True)
@pytest.mark.parametrize(
"formatter,value,expected,unaliased",
(
(
{"should_be_int": int, "should_be_bool": bool},
{"should_be_int": 1.2, "should_be_bool": 3.4, "pass_through": 5.6},
{"should_be_int": 1, "should_be_bool": True, "pass_through": 5.6},
False, # does not apply
),
(
{"toBytesFromInt": eth_utils.to_bytes, "toIntFromBytes": eth_utils.to_int},
PydanticModel(),
{"toBytesFromInt": b"\x01", "toIntFromBytes": 2},
False,
),
(
{
"to_bytes_from_int": eth_utils.to_bytes,
"to_int_from_bytes": eth_utils.to_int,
},
PydanticModel(),
{"to_bytes_from_int": b"\x01", "to_int_from_bytes": 2},
True,
),
),
)
def test_apply_formatters_to_dict(formatter, value, expected, unaliased):
assert (
eth_utils.apply_formatters_to_dict(formatter, value, unaliased=unaliased)
== expected
)
mapper = apply_formatters_to_dict(formatter, unaliased=unaliased)
assert mapper(value) == expected
@pytest.mark.parametrize(
"formatter, value, expected",
(
(
{"black": "orange", "Internet": "Ethereum"},
{"black": 1.2, "Internet": 3.4, "pass_through": 5.6},
{"orange": 1.2, "Ethereum": 3.4, "pass_through": 5.6},
),
),
)
def test_apply_key_map(formatter, value, expected):
assert eth_utils.apply_key_map(formatter, value) == expected
mapper = apply_key_map(formatter)
assert mapper(value) == expected
@pytest.mark.parametrize(
"formatter, value",
(
({"a": "b"}, {"b": 3}),
({"a": "b"}, {"a": 2, "b": 3}),
({"a": "b"}, collections.OrderedDict((("a", 2), ("b", 3)))),
({"a": "b"}, collections.OrderedDict((("b", 3), ("a", 2)))),
),
)
def test_apply_key_map_with_key_conflicts_raises_exception(formatter, value):
with pytest.raises(KeyError):
eth_utils.apply_key_map(formatter, value)
@pytest.mark.parametrize(
"condition, formatter, value, expected",
(
(is_string, bool, 1, 1),
(is_string, bool, "1", True),
(is_string, bool, "", False),
),
)
def test_apply_formatter_if(condition, formatter, value, expected):
assert eth_utils.apply_formatter_if(condition, formatter, value) == expected
# must be able to curry
conditional_formatter = apply_formatter_if(condition, formatter)
assert conditional_formatter(value) == expected
@pytest.mark.parametrize(
"condition_formatters, value, expected",
(
(CONDITION_FORMATTER_PAIRS, "my thing", "gniht ym"),
(CONDITION_FORMATTER_PAIRS, [2, 3], (2, 3)),
(CONDITION_FORMATTER_PAIRS, 1, ValueError),
),
)
def test_apply_one_of_formatters(condition_formatters, value, expected):
if isinstance(expected, type) and issubclass(expected, Exception):
with pytest.raises(expected):
apply_one_of_formatters(condition_formatters, value)
with pytest.raises(expected):
eth_utils.apply_one_of_formatters(condition_formatters, value)
else:
assert (
eth_utils.apply_one_of_formatters(condition_formatters, value) == expected
)
# must be able to curry
apply_one = apply_one_of_formatters(condition_formatters)
assert apply_one(value) == expected
@pytest.mark.parametrize(
"formatter, index, value, expected",
(
(bool, 1, [1, 2, 3], [1, True, 3]),
(bool, 1, (1, 2, 3), (1, True, 3)),
(bool, 3, (1, 2, 3), IndexError),
),
)
def test_apply_formatter_at_index(formatter, index, value, expected):
if isinstance(expected, type) and issubclass(expected, Exception):
with pytest.raises(expected):
apply_formatter_at_index(formatter, index, value)
with pytest.raises(expected):
eth_utils.apply_formatter_at_index(formatter, index, value)
else:
assert eth_utils.apply_formatter_at_index(formatter, index, value) == expected
# must be able to curry
targetted_formatter = apply_formatter_at_index(formatter, index)
assert targetted_formatter(value) == expected
SEQUENCE_FORMATTER_PARAMETERS = (
([bool, int, str], (1.2, 3.4, 5.6), (True, 3, "5.6")),
([bool, int, str], [1.2, 3.4, 5.6], [True, 3, "5.6"]),
([bool, int, str, float], (1.2, 3.4, 5.6), IndexError),
)
LOOSE_SEQUENCE_FORMATTER_PARAMETERS = SEQUENCE_FORMATTER_PARAMETERS + (
([bool, int], (1.2, 3.4, 5.6), (True, 3, 5.6)),
)
@pytest.mark.parametrize(
"formatters, value, expected", LOOSE_SEQUENCE_FORMATTER_PARAMETERS
)
def test_combine_argument_formatters(formatters, value, expected):
with pytest.warns(DeprecationWarning):
list_formatter = eth_utils.combine_argument_formatters(*formatters)
if isinstance(expected, type) and issubclass(expected, Exception):
with pytest.raises(expected):
list_formatter(value)
else:
assert list_formatter(value) == expected
STRICT_SEQUENCE_FORMATTER_PARAMETERS = SEQUENCE_FORMATTER_PARAMETERS + (
([bool, int], (1.2, 3.4, 5.6), IndexError),
)
@pytest.mark.parametrize(
"formatters, value, expected", STRICT_SEQUENCE_FORMATTER_PARAMETERS
)
def test_apply_formatters_to_sequence_curried(formatters, value, expected):
list_formatter = apply_formatters_to_sequence(formatters)
if isinstance(expected, type) and issubclass(expected, Exception):
with pytest.raises(expected):
list_formatter(value)
else:
assert list_formatter(value) == expected
@pytest.mark.parametrize(
"formatters, value, expected", STRICT_SEQUENCE_FORMATTER_PARAMETERS
)
def test_apply_formatters_to_sequence(formatters, value, expected):
if isinstance(expected, type) and issubclass(expected, Exception):
with pytest.raises(expected):
eth_utils.apply_formatters_to_sequence(formatters, value)
else:
assert eth_utils.apply_formatters_to_sequence(formatters, value) == expected
@pytest.mark.parametrize(
"formatter, value, expected",
((int, [1.2, 3.4, 5.6], [1, 3, 5]), (int, (1.2, 3.4, 5.6), (1, 3, 5))),
)
def test_apply_formatter_to_array(formatter, value, expected):
assert eth_utils.apply_formatter_to_array(formatter, value) == expected
mapper = apply_formatter_to_array(formatter)
assert mapper(value) == expected
|
