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test_deserialization.py
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test_deserialization.py
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import datetime as dt
import uuid
import decimal
import math
import pytest
from marshmallow import EXCLUDE, INCLUDE, RAISE, fields, Schema, validate
from marshmallow.exceptions import ValidationError
from marshmallow.validate import Equal
from tests.base import assert_date_equal, assert_time_equal, central, ALL_FIELDS
class TestDeserializingNone:
@pytest.mark.parametrize("FieldClass", ALL_FIELDS)
def test_fields_allow_none_deserialize_to_none(self, FieldClass):
field = FieldClass(allow_none=True)
field.deserialize(None) is None
# https://github.com/marshmallow-code/marshmallow/issues/111
@pytest.mark.parametrize("FieldClass", ALL_FIELDS)
def test_fields_dont_allow_none_by_default(self, FieldClass):
field = FieldClass()
with pytest.raises(ValidationError, match="Field may not be null."):
field.deserialize(None)
def test_allow_none_is_true_if_missing_is_true(self):
field = fields.Field(missing=None)
assert field.allow_none is True
field.deserialize(None) is None
def test_list_field_deserialize_none_to_none(self):
field = fields.List(fields.String(allow_none=True), allow_none=True)
assert field.deserialize(None) is None
def test_tuple_field_deserialize_none_to_none(self):
field = fields.Tuple([fields.String()], allow_none=True)
assert field.deserialize(None) is None
class TestFieldDeserialization:
def test_float_field_deserialization(self):
field = fields.Float()
assert math.isclose(field.deserialize("12.3"), 12.3)
assert math.isclose(field.deserialize(12.3), 12.3)
@pytest.mark.parametrize("in_val", ["bad", "", {}, True, False])
def test_invalid_float_field_deserialization(self, in_val):
field = fields.Float()
with pytest.raises(ValidationError) as excinfo:
field.deserialize(in_val)
assert excinfo.value.args[0] == "Not a valid number."
def test_float_field_overflow(self):
field = fields.Float()
with pytest.raises(ValidationError) as excinfo:
field.deserialize(2 ** 1024)
assert excinfo.value.args[0] == "Number too large."
def test_integer_field_deserialization(self):
field = fields.Integer()
assert field.deserialize("42") == 42
with pytest.raises(ValidationError) as excinfo:
field.deserialize("42.0")
assert excinfo.value.args[0] == "Not a valid integer."
with pytest.raises(ValidationError):
field.deserialize("bad")
assert excinfo.value.args[0] == "Not a valid integer."
with pytest.raises(ValidationError):
field.deserialize({})
assert excinfo.value.args[0] == "Not a valid integer."
def test_strict_integer_field_deserialization(self):
field = fields.Integer(strict=True)
assert field.deserialize(42) == 42
with pytest.raises(ValidationError) as excinfo:
field.deserialize(42.0)
assert excinfo.value.args[0] == "Not a valid integer."
with pytest.raises(ValidationError) as excinfo:
field.deserialize(decimal.Decimal("42.0"))
assert excinfo.value.args[0] == "Not a valid integer."
with pytest.raises(ValidationError) as excinfo:
field.deserialize("42")
assert excinfo.value.args[0] == "Not a valid integer."
def test_decimal_field_deserialization(self):
m1 = 12
m2 = "12.355"
m3 = decimal.Decimal(1)
m4 = 3.14
m5 = "abc"
m6 = [1, 2]
field = fields.Decimal()
assert isinstance(field.deserialize(m1), decimal.Decimal)
assert field.deserialize(m1) == decimal.Decimal(12)
assert isinstance(field.deserialize(m2), decimal.Decimal)
assert field.deserialize(m2) == decimal.Decimal("12.355")
assert isinstance(field.deserialize(m3), decimal.Decimal)
assert field.deserialize(m3) == decimal.Decimal(1)
assert isinstance(field.deserialize(m4), decimal.Decimal)
assert field.deserialize(m4).as_tuple() == (0, (3, 1, 4), -2)
with pytest.raises(ValidationError) as excinfo:
field.deserialize(m5)
assert excinfo.value.args[0] == "Not a valid number."
with pytest.raises(ValidationError) as excinfo:
field.deserialize(m6)
assert excinfo.value.args[0] == "Not a valid number."
def test_decimal_field_with_places(self):
m1 = 12
m2 = "12.355"
m3 = decimal.Decimal(1)
m4 = "abc"
m5 = [1, 2]
field = fields.Decimal(1)
assert isinstance(field.deserialize(m1), decimal.Decimal)
assert field.deserialize(m1) == decimal.Decimal(12)
assert isinstance(field.deserialize(m2), decimal.Decimal)
assert field.deserialize(m2) == decimal.Decimal("12.4")
assert isinstance(field.deserialize(m3), decimal.Decimal)
assert field.deserialize(m3) == decimal.Decimal(1)
with pytest.raises(ValidationError) as excinfo:
field.deserialize(m4)
assert excinfo.value.args[0] == "Not a valid number."
with pytest.raises(ValidationError) as excinfo:
field.deserialize(m5)
assert excinfo.value.args[0] == "Not a valid number."
def test_decimal_field_with_places_and_rounding(self):
m1 = 12
m2 = "12.355"
m3 = decimal.Decimal(1)
m4 = "abc"
m5 = [1, 2]
field = fields.Decimal(1, decimal.ROUND_DOWN)
assert isinstance(field.deserialize(m1), decimal.Decimal)
assert field.deserialize(m1) == decimal.Decimal(12)
assert isinstance(field.deserialize(m2), decimal.Decimal)
assert field.deserialize(m2) == decimal.Decimal("12.3")
assert isinstance(field.deserialize(m3), decimal.Decimal)
assert field.deserialize(m3) == decimal.Decimal(1)
with pytest.raises(ValidationError):
field.deserialize(m4)
with pytest.raises(ValidationError):
field.deserialize(m5)
def test_decimal_field_deserialization_string(self):
m1 = 12
m2 = "12.355"
m3 = decimal.Decimal(1)
m4 = "abc"
m5 = [1, 2]
field = fields.Decimal(as_string=True)
assert isinstance(field.deserialize(m1), decimal.Decimal)
assert field.deserialize(m1) == decimal.Decimal(12)
assert isinstance(field.deserialize(m2), decimal.Decimal)
assert field.deserialize(m2) == decimal.Decimal("12.355")
assert isinstance(field.deserialize(m3), decimal.Decimal)
assert field.deserialize(m3) == decimal.Decimal(1)
with pytest.raises(ValidationError):
field.deserialize(m4)
with pytest.raises(ValidationError):
field.deserialize(m5)
def test_decimal_field_special_values(self):
m1 = "-NaN"
m2 = "NaN"
m3 = "-sNaN"
m4 = "sNaN"
m5 = "-Infinity"
m6 = "Infinity"
m7 = "-0"
field = fields.Decimal(places=2, allow_nan=True)
m1d = field.deserialize(m1)
assert isinstance(m1d, decimal.Decimal)
assert m1d.is_qnan() and not m1d.is_signed()
m2d = field.deserialize(m2)
assert isinstance(m2d, decimal.Decimal)
assert m2d.is_qnan() and not m2d.is_signed()
m3d = field.deserialize(m3)
assert isinstance(m3d, decimal.Decimal)
assert m3d.is_qnan() and not m3d.is_signed()
m4d = field.deserialize(m4)
assert isinstance(m4d, decimal.Decimal)
assert m4d.is_qnan() and not m4d.is_signed()
m5d = field.deserialize(m5)
assert isinstance(m5d, decimal.Decimal)
assert m5d.is_infinite() and m5d.is_signed()
m6d = field.deserialize(m6)
assert isinstance(m6d, decimal.Decimal)
assert m6d.is_infinite() and not m6d.is_signed()
m7d = field.deserialize(m7)
assert isinstance(m7d, decimal.Decimal)
assert m7d.is_zero() and m7d.is_signed()
def test_decimal_field_special_values_not_permitted(self):
m1 = "-NaN"
m2 = "NaN"
m3 = "-sNaN"
m4 = "sNaN"
m5 = "-Infinity"
m6 = "Infinity"
m7 = "-0"
field = fields.Decimal(places=2)
with pytest.raises(ValidationError) as excinfo:
field.deserialize(m1)
assert str(excinfo.value.args[0]) == (
"Special numeric values (nan or infinity) are not permitted."
)
with pytest.raises(ValidationError):
field.deserialize(m2)
with pytest.raises(ValidationError):
field.deserialize(m3)
with pytest.raises(ValidationError):
field.deserialize(m4)
with pytest.raises(ValidationError):
field.deserialize(m5)
with pytest.raises(ValidationError):
field.deserialize(m6)
m7d = field.deserialize(m7)
assert isinstance(m7d, decimal.Decimal)
assert m7d.is_zero() and m7d.is_signed()
@pytest.mark.parametrize("allow_nan", (None, False, True))
@pytest.mark.parametrize("value", ("nan", "-nan", "inf", "-inf"))
def test_float_field_allow_nan(self, value, allow_nan):
if allow_nan is None:
# Test default case is False
field = fields.Float()
else:
field = fields.Float(allow_nan=allow_nan)
if allow_nan is True:
res = field.deserialize(value)
assert isinstance(res, float)
if value.endswith("nan"):
assert math.isnan(res)
else:
assert res == float(value)
else:
with pytest.raises(ValidationError) as excinfo:
field.deserialize(value)
assert str(excinfo.value.args[0]) == (
"Special numeric values (nan or infinity) are not permitted."
)
def test_string_field_deserialization(self):
field = fields.String()
assert field.deserialize("foo") == "foo"
assert field.deserialize(b"foo") == "foo"
# https://github.com/marshmallow-code/marshmallow/issues/231
with pytest.raises(ValidationError) as excinfo:
field.deserialize(42)
assert excinfo.value.args[0] == "Not a valid string."
with pytest.raises(ValidationError):
field.deserialize({})
def test_boolean_field_deserialization(self):
field = fields.Boolean()
assert field.deserialize(True) is True
assert field.deserialize(False) is False
assert field.deserialize("True") is True
assert field.deserialize("False") is False
assert field.deserialize("true") is True
assert field.deserialize("false") is False
assert field.deserialize("1") is True
assert field.deserialize("0") is False
assert field.deserialize("on") is True
assert field.deserialize("ON") is True
assert field.deserialize("On") is True
assert field.deserialize("off") is False
assert field.deserialize("OFF") is False
assert field.deserialize("Off") is False
assert field.deserialize("y") is True
assert field.deserialize("Y") is True
assert field.deserialize("yes") is True
assert field.deserialize("YES") is True
assert field.deserialize("Yes") is True
assert field.deserialize("n") is False
assert field.deserialize("N") is False
assert field.deserialize("no") is False
assert field.deserialize("NO") is False
assert field.deserialize("No") is False
assert field.deserialize(1) is True
assert field.deserialize(0) is False
with pytest.raises(ValidationError) as excinfo:
field.deserialize({})
assert excinfo.value.args[0] == "Not a valid boolean."
with pytest.raises(ValidationError) as excinfo:
field.deserialize(42)
with pytest.raises(ValidationError) as excinfo:
field.deserialize("invalid-string")
def test_boolean_field_deserialization_with_custom_truthy_values(self):
class MyBoolean(fields.Boolean):
truthy = {"yep"}
field = MyBoolean()
assert field.deserialize("yep") is True
field = fields.Boolean(truthy=("yep",))
assert field.deserialize("yep") is True
assert field.deserialize(False) is False
@pytest.mark.parametrize("in_val", ["notvalid", 123])
def test_boolean_field_deserialization_with_custom_truthy_values_invalid(
self, in_val
):
class MyBoolean(fields.Boolean):
truthy = {"yep"}
field = MyBoolean()
with pytest.raises(ValidationError) as excinfo:
field.deserialize(in_val)
expected_msg = "Not a valid boolean."
assert str(excinfo.value.args[0]) == expected_msg
field = fields.Boolean(truthy=("yep",))
with pytest.raises(ValidationError) as excinfo:
field.deserialize(in_val)
expected_msg = "Not a valid boolean."
assert str(excinfo.value.args[0]) == expected_msg
field2 = MyBoolean(error_messages={"invalid": "bad input"})
with pytest.raises(ValidationError) as excinfo:
field2.deserialize(in_val)
assert str(excinfo.value.args[0]) == "bad input"
field2 = fields.Boolean(
truthy=("yep",), error_messages={"invalid": "bad input"}
)
def test_boolean_field_deserialization_with_empty_truthy(self):
field = fields.Boolean(truthy=())
assert field.deserialize("yep") is True
assert field.deserialize(True) is True
assert field.deserialize(False) is False
def test_boolean_field_deserialization_with_custom_falsy_values(self):
field = fields.Boolean(falsy=("nope",))
assert field.deserialize("nope") is False
assert field.deserialize(True) is True
def test_field_toggle_show_invalid_value_in_error_message(self):
error_messages = {"invalid": "Not valid: {input}"}
boolfield = fields.Boolean(error_messages=error_messages)
with pytest.raises(ValidationError) as excinfo:
boolfield.deserialize("notabool")
assert str(excinfo.value.args[0]) == "Not valid: notabool"
numfield = fields.Number(error_messages=error_messages)
with pytest.raises(ValidationError) as excinfo:
numfield.deserialize("notanum")
assert str(excinfo.value.args[0]) == "Not valid: notanum"
intfield = fields.Integer(error_messages=error_messages)
with pytest.raises(ValidationError) as excinfo:
intfield.deserialize("notanint")
assert str(excinfo.value.args[0]) == "Not valid: notanint"
date_error_messages = {"invalid": "Not a valid {obj_type}: {input}"}
datefield = fields.DateTime(error_messages=date_error_messages)
with pytest.raises(ValidationError) as excinfo:
datefield.deserialize("notadate")
assert str(excinfo.value.args[0]) == "Not a valid datetime: notadate"
@pytest.mark.parametrize(
"in_value",
[
"not-a-datetime",
42,
"",
[],
"2018",
"2018-01-01",
dt.datetime.now().strftime("%H:%M:%S %Y-%m-%d"),
dt.datetime.now().strftime("%m-%d-%Y %H:%M:%S"),
],
)
def test_invalid_datetime_deserialization(self, in_value):
field = fields.DateTime()
with pytest.raises(ValidationError, match="Not a valid datetime."):
field.deserialize(in_value)
def test_custom_date_format_datetime_field_deserialization(self):
# Datetime string with format "%H:%M:%S.%f %Y-%m-%d"
datestring = "10:11:12.123456 2019-01-02"
# Deserialization should fail when datestring is not of same format
field = fields.DateTime(format="%d-%m-%Y %H:%M:%S")
with pytest.raises(ValidationError, match="Not a valid datetime."):
field.deserialize(datestring)
field = fields.DateTime(format="%H:%M:%S.%f %Y-%m-%d")
assert field.deserialize(datestring) == dt.datetime(
2019, 1, 2, 10, 11, 12, 123456
)
field = fields.NaiveDateTime(format="%H:%M:%S.%f %Y-%m-%d")
assert field.deserialize(datestring) == dt.datetime(
2019, 1, 2, 10, 11, 12, 123456
)
field = fields.AwareDateTime(format="%H:%M:%S.%f %Y-%m-%d")
with pytest.raises(ValidationError, match="Not a valid aware datetime."):
field.deserialize(datestring)
@pytest.mark.parametrize("fmt", ["rfc", "rfc822"])
@pytest.mark.parametrize(
("value", "expected", "aware"),
[
(
"Sun, 10 Nov 2013 01:23:45 -0000",
dt.datetime(2013, 11, 10, 1, 23, 45),
False,
),
(
"Sun, 10 Nov 2013 01:23:45 +0000",
dt.datetime(2013, 11, 10, 1, 23, 45, tzinfo=dt.timezone.utc),
True,
),
(
"Sun, 10 Nov 2013 01:23:45 -0600",
central.localize(dt.datetime(2013, 11, 10, 1, 23, 45), is_dst=False),
True,
),
],
)
def test_rfc_datetime_field_deserialization(self, fmt, value, expected, aware):
field = fields.DateTime(format=fmt)
assert field.deserialize(value) == expected
field = fields.NaiveDateTime(format=fmt)
if aware:
with pytest.raises(ValidationError, match="Not a valid naive datetime."):
field.deserialize(value)
else:
assert field.deserialize(value) == expected
field = fields.AwareDateTime(format=fmt)
if not aware:
with pytest.raises(ValidationError, match="Not a valid aware datetime."):
field.deserialize(value)
else:
assert field.deserialize(value) == expected
@pytest.mark.parametrize("fmt", ["iso", "iso8601"])
@pytest.mark.parametrize(
("value", "expected", "aware"),
[
("2013-11-10T01:23:45", dt.datetime(2013, 11, 10, 1, 23, 45), False),
(
"2013-11-10T01:23:45+00:00",
dt.datetime(2013, 11, 10, 1, 23, 45, tzinfo=dt.timezone.utc),
True,
),
(
# Regression test for https://github.com/marshmallow-code/marshmallow/issues/1251
"2013-11-10T01:23:45.123+00:00",
dt.datetime(2013, 11, 10, 1, 23, 45, 123000, tzinfo=dt.timezone.utc),
True,
),
(
"2013-11-10T01:23:45.123456+00:00",
dt.datetime(2013, 11, 10, 1, 23, 45, 123456, tzinfo=dt.timezone.utc),
True,
),
(
"2013-11-10T01:23:45-06:00",
central.localize(dt.datetime(2013, 11, 10, 1, 23, 45), is_dst=False),
True,
),
],
)
def test_iso_datetime_field_deserialization(self, fmt, value, expected, aware):
field = fields.DateTime(format=fmt)
assert field.deserialize(value) == expected
field = fields.NaiveDateTime(format=fmt)
if aware:
with pytest.raises(ValidationError, match="Not a valid naive datetime."):
field.deserialize(value)
else:
assert field.deserialize(value) == expected
field = fields.AwareDateTime(format=fmt)
if not aware:
with pytest.raises(ValidationError, match="Not a valid aware datetime."):
field.deserialize(value)
else:
assert field.deserialize(value) == expected
@pytest.mark.parametrize(
("fmt", "timezone", "value", "expected"),
[
("iso", None, "2013-11-10T01:23:45", dt.datetime(2013, 11, 10, 1, 23, 45)),
(
"iso",
dt.timezone.utc,
"2013-11-10T01:23:45+00:00",
dt.datetime(2013, 11, 10, 1, 23, 45),
),
(
"iso",
central,
"2013-11-10T01:23:45-03:00",
dt.datetime(2013, 11, 9, 22, 23, 45),
),
(
"rfc",
None,
"Sun, 10 Nov 2013 01:23:45 -0000",
dt.datetime(2013, 11, 10, 1, 23, 45),
),
(
"rfc",
dt.timezone.utc,
"Sun, 10 Nov 2013 01:23:45 +0000",
dt.datetime(2013, 11, 10, 1, 23, 45),
),
(
"rfc",
central,
"Sun, 10 Nov 2013 01:23:45 -0300",
dt.datetime(2013, 11, 9, 22, 23, 45),
),
],
)
def test_naive_datetime_with_timezone(self, fmt, timezone, value, expected):
field = fields.NaiveDateTime(format=fmt, timezone=timezone)
assert field.deserialize(value) == expected
@pytest.mark.parametrize("timezone", (dt.timezone.utc, central))
@pytest.mark.parametrize(
("fmt", "value"),
[("iso", "2013-11-10T01:23:45"), ("rfc", "Sun, 10 Nov 2013 01:23:45")],
)
def test_aware_datetime_default_timezone(self, fmt, timezone, value):
field = fields.AwareDateTime(format=fmt, default_timezone=timezone)
assert field.deserialize(value) == dt.datetime(
2013, 11, 10, 1, 23, 45, tzinfo=timezone
)
def test_time_field_deserialization(self):
field = fields.Time()
t = dt.time(1, 23, 45)
t_formatted = t.isoformat()
result = field.deserialize(t_formatted)
assert isinstance(result, dt.time)
assert_time_equal(result, t)
# With microseconds
t2 = dt.time(1, 23, 45, 6789)
t2_formatted = t2.isoformat()
result2 = field.deserialize(t2_formatted)
assert_time_equal(result2, t2)
@pytest.mark.parametrize("in_data", ["badvalue", "", [], 42])
def test_invalid_time_field_deserialization(self, in_data):
field = fields.Time()
with pytest.raises(ValidationError) as excinfo:
field.deserialize(in_data)
assert excinfo.value.args[0] == "Not a valid time."
def test_invalid_timedelta_precision(self):
with pytest.raises(ValueError, match='The precision must be "days",'):
fields.TimeDelta("invalid")
def test_timedelta_field_deserialization(self):
field = fields.TimeDelta()
result = field.deserialize("42")
assert isinstance(result, dt.timedelta)
assert result.days == 0
assert result.seconds == 42
assert result.microseconds == 0
field = fields.TimeDelta(fields.TimeDelta.SECONDS)
result = field.deserialize(100000)
assert result.days == 1
assert result.seconds == 13600
assert result.microseconds == 0
field = fields.TimeDelta(fields.TimeDelta.DAYS)
result = field.deserialize("-42")
assert isinstance(result, dt.timedelta)
assert result.days == -42
assert result.seconds == 0
assert result.microseconds == 0
field = fields.TimeDelta(fields.TimeDelta.MICROSECONDS)
result = field.deserialize(10 ** 6 + 1)
assert isinstance(result, dt.timedelta)
assert result.days == 0
assert result.seconds == 1
assert result.microseconds == 1
field = fields.TimeDelta(fields.TimeDelta.MICROSECONDS)
result = field.deserialize(86400 * 10 ** 6 + 1)
assert isinstance(result, dt.timedelta)
assert result.days == 1
assert result.seconds == 0
assert result.microseconds == 1
field = fields.TimeDelta()
result = field.deserialize(12.9)
assert isinstance(result, dt.timedelta)
assert result.days == 0
assert result.seconds == 12
assert result.microseconds == 0
field = fields.TimeDelta(fields.TimeDelta.WEEKS)
result = field.deserialize(1)
assert isinstance(result, dt.timedelta)
assert result.days == 7
assert result.seconds == 0
assert result.microseconds == 0
field = fields.TimeDelta(fields.TimeDelta.HOURS)
result = field.deserialize(25)
assert isinstance(result, dt.timedelta)
assert result.days == 1
assert result.seconds == 3600
assert result.microseconds == 0
field = fields.TimeDelta(fields.TimeDelta.MINUTES)
result = field.deserialize(1441)
assert isinstance(result, dt.timedelta)
assert result.days == 1
assert result.seconds == 60
assert result.microseconds == 0
field = fields.TimeDelta(fields.TimeDelta.MILLISECONDS)
result = field.deserialize(123456)
assert isinstance(result, dt.timedelta)
assert result.days == 0
assert result.seconds == 123
assert result.microseconds == 456000
@pytest.mark.parametrize("in_value", ["", "badvalue", [], 9999999999])
def test_invalid_timedelta_field_deserialization(self, in_value):
field = fields.TimeDelta(fields.TimeDelta.DAYS)
with pytest.raises(ValidationError) as excinfo:
field.deserialize(in_value)
assert excinfo.value.args[0] == "Not a valid period of time."
@pytest.mark.parametrize("format", (None, "%Y-%m-%d"))
def test_date_field_deserialization(self, format):
field = fields.Date(format=format)
d = dt.date(2014, 8, 21)
iso_date = d.isoformat()
result = field.deserialize(iso_date)
assert type(result) == dt.date
assert_date_equal(result, d)
@pytest.mark.parametrize(
"in_value", ["", 123, [], dt.date(2014, 8, 21).strftime("%d-%m-%Y")]
)
def test_invalid_date_field_deserialization(self, in_value):
field = fields.Date()
with pytest.raises(ValidationError) as excinfo:
field.deserialize(in_value)
msg = "Not a valid date."
assert excinfo.value.args[0] == msg
def test_dict_field_deserialization(self):
field = fields.Dict()
assert field.deserialize({"foo": "bar"}) == {"foo": "bar"}
with pytest.raises(ValidationError) as excinfo:
field.deserialize("baddict")
assert excinfo.value.args[0] == "Not a valid mapping type."
def test_structured_dict_value_deserialization(self):
field = fields.Dict(values=fields.List(fields.Str))
assert field.deserialize({"foo": ["bar", "baz"]}) == {"foo": ["bar", "baz"]}
with pytest.raises(ValidationError) as excinfo:
field.deserialize({"foo": [1, 2], "bar": "baz", "ham": ["spam"]})
assert excinfo.value.args[0] == {
"foo": {"value": {0: ["Not a valid string."], 1: ["Not a valid string."]}},
"bar": {"value": ["Not a valid list."]},
}
assert excinfo.value.valid_data == {"foo": [], "ham": ["spam"]}
def test_structured_dict_key_deserialization(self):
field = fields.Dict(keys=fields.Str)
assert field.deserialize({"foo": "bar"}) == {"foo": "bar"}
with pytest.raises(ValidationError) as excinfo:
field.deserialize({1: "bar", "foo": "baz"})
assert excinfo.value.args[0] == {1: {"key": ["Not a valid string."]}}
assert excinfo.value.valid_data == {"foo": "baz"}
def test_structured_dict_key_value_deserialization(self):
field = fields.Dict(
keys=fields.Str(
validate=[validate.Email(), validate.Regexp(r".*@test\.com$")]
),
values=fields.Decimal,
)
assert field.deserialize({"foo@test.com": 1}) == {
"foo@test.com": decimal.Decimal(1)
}
with pytest.raises(ValidationError) as excinfo:
field.deserialize({1: "bar"})
assert excinfo.value.args[0] == {
1: {"key": ["Not a valid string."], "value": ["Not a valid number."]}
}
with pytest.raises(ValidationError) as excinfo:
field.deserialize({"foo@test.com": "bar"})
assert excinfo.value.args[0] == {
"foo@test.com": {"value": ["Not a valid number."]}
}
assert excinfo.value.valid_data == {}
with pytest.raises(ValidationError) as excinfo:
field.deserialize({1: 1})
assert excinfo.value.args[0] == {1: {"key": ["Not a valid string."]}}
assert excinfo.value.valid_data == {}
with pytest.raises(ValidationError) as excinfo:
field.deserialize({"foo": "bar"})
assert excinfo.value.args[0] == {
"foo": {
"key": [
"Not a valid email address.",
"String does not match expected pattern.",
],
"value": ["Not a valid number."],
}
}
assert excinfo.value.valid_data == {}
def test_url_field_deserialization(self):
field = fields.Url()
assert field.deserialize("https://duckduckgo.com") == "https://duckduckgo.com"
with pytest.raises(ValidationError) as excinfo:
field.deserialize("badurl")
assert excinfo.value.args[0][0] == "Not a valid URL."
# Relative URLS not allowed by default
with pytest.raises(ValidationError) as excinfo:
field.deserialize("/foo/bar")
assert excinfo.value.args[0][0] == "Not a valid URL."
# regression test for https://github.com/marshmallow-code/marshmallow/issues/1400
def test_url_field_non_list_validators(self):
field = fields.Url(validate=(validate.Length(min=16),))
with pytest.raises(ValidationError, match="Shorter than minimum length"):
field.deserialize("https://abc.def")
def test_relative_url_field_deserialization(self):
field = fields.Url(relative=True)
assert field.deserialize("/foo/bar") == "/foo/bar"
def test_url_field_schemes_argument(self):
field = fields.URL()
url = "ws://test.test"
with pytest.raises(ValidationError):
field.deserialize(url)
field2 = fields.URL(schemes={"http", "https", "ws"})
assert field2.deserialize(url) == url
def test_email_field_deserialization(self):
field = fields.Email()
assert field.deserialize("foo@bar.com") == "foo@bar.com"
with pytest.raises(ValidationError) as excinfo:
field.deserialize("invalidemail")
assert excinfo.value.args[0][0] == "Not a valid email address."
# regression test for https://github.com/marshmallow-code/marshmallow/issues/1400
def test_email_field_non_list_validators(self):
field = fields.Email(validate=(validate.Length(min=9),))
with pytest.raises(ValidationError, match="Shorter than minimum length"):
field.deserialize("a@bc.com")
def test_function_field_deserialization_is_noop_by_default(self):
field = fields.Function(lambda x: None)
# Default is noop
assert field.deserialize("foo") == "foo"
assert field.deserialize(42) == 42
def test_function_field_deserialization_with_callable(self):
field = fields.Function(lambda x: None, deserialize=lambda val: val.upper())
assert field.deserialize("foo") == "FOO"
def test_function_field_deserialization_with_context(self):
class Parent(Schema):
pass
field = fields.Function(
lambda x: None,
deserialize=lambda val, context: val.upper() + context["key"],
)
field.parent = Parent(context={"key": "BAR"})
assert field.deserialize("foo") == "FOOBAR"
def test_function_field_passed_deserialize_only_is_load_only(self):
field = fields.Function(deserialize=lambda val: val.upper())
assert field.load_only is True
def test_function_field_passed_deserialize_and_serialize_is_not_load_only(self):
field = fields.Function(
serialize=lambda val: val.lower(), deserialize=lambda val: val.upper()
)
assert field.load_only is False
def test_uuid_field_deserialization(self):
field = fields.UUID()
uuid_str = str(uuid.uuid4())
result = field.deserialize(uuid_str)
assert isinstance(result, uuid.UUID)
assert str(result) == uuid_str
uuid4 = uuid.uuid4()
result = field.deserialize(uuid4)
assert isinstance(result, uuid.UUID)
assert result == uuid4
uuid_bytes = b"]\xc7wW\x132O\xf9\xa5\xbe\x13\x1f\x02\x18\xda\xbf"
result = field.deserialize(uuid_bytes)
assert isinstance(result, uuid.UUID)
assert result.bytes == uuid_bytes
@pytest.mark.parametrize("in_value", ["malformed", 123, [], b"tooshort"])
def test_invalid_uuid_deserialization(self, in_value):
field = fields.UUID()
with pytest.raises(ValidationError) as excinfo:
field.deserialize(in_value)
assert excinfo.value.args[0] == "Not a valid UUID."
def test_deserialization_function_must_be_callable(self):
with pytest.raises(ValueError):
fields.Function(lambda x: None, deserialize="notvalid")
def test_method_field_deserialization_is_noop_by_default(self):
class MiniUserSchema(Schema):
uppername = fields.Method("uppercase_name")
def uppercase_name(self, obj):
return obj.upper()
s = MiniUserSchema()
assert s.fields["uppername"].deserialize("steve") == "steve"
def test_deserialization_method(self):
class MiniUserSchema(Schema):
uppername = fields.Method("uppercase_name", deserialize="lowercase_name")
def uppercase_name(self, obj):
return obj.name.upper()
def lowercase_name(self, value):
return value.lower()
s = MiniUserSchema()
assert s.fields["uppername"].deserialize("STEVE") == "steve"
def test_deserialization_method_must_be_a_method(self):
class BadSchema(Schema):
uppername = fields.Method("uppercase_name", deserialize="lowercase_name")
s = BadSchema()
with pytest.raises(ValueError):
s.fields["uppername"].deserialize("STEVE")
def test_method_field_deserialize_only(self):
class MethodDeserializeOnly(Schema):
def lowercase_name(self, value):
return value.lower()
m = fields.Method(deserialize="lowercase_name")
m.parent = MethodDeserializeOnly()
assert m.deserialize("ALEC") == "alec"
def test_datetime_list_field_deserialization(self):
dtimes = dt.datetime.now(), dt.datetime.now(), dt.datetime.utcnow()
dstrings = [each.isoformat() for each in dtimes]
field = fields.List(fields.DateTime())
result = field.deserialize(dstrings)
assert all([isinstance(each, dt.datetime) for each in result])
for actual, expected in zip(result, dtimes):
assert_date_equal(actual, expected)
def test_list_field_deserialize_invalid_item(self):
field = fields.List(fields.DateTime)
with pytest.raises(ValidationError) as excinfo:
field.deserialize(["badvalue"])
assert excinfo.value.args[0] == {0: ["Not a valid datetime."]}
field = fields.List(fields.Str())
with pytest.raises(ValidationError) as excinfo:
field.deserialize(["good", 42])
assert excinfo.value.args[0] == {1: ["Not a valid string."]}
def test_list_field_deserialize_multiple_invalid_items(self):
field = fields.List(
fields.Int(
validate=validate.Range(10, 20, error="Value {input} not in range")
)
)
with pytest.raises(ValidationError) as excinfo:
field.deserialize([10, 5, 25])
assert len(excinfo.value.args[0]) == 2
assert excinfo.value.args[0][1] == ["Value 5 not in range"]
assert excinfo.value.args[0][2] == ["Value 25 not in range"]
@pytest.mark.parametrize("value", ["notalist", 42, {}])
def test_list_field_deserialize_value_that_is_not_a_list(self, value):
field = fields.List(fields.Str())
with pytest.raises(ValidationError) as excinfo:
field.deserialize(value)
assert excinfo.value.args[0] == "Not a valid list."
def test_datetime_int_tuple_field_deserialization(self):
dtime = dt.datetime.now()
data = dtime.isoformat(), 42
field = fields.Tuple([fields.DateTime(), fields.Integer()])
result = field.deserialize(data)
assert isinstance(result, tuple)
assert len(result) == 2
for val, type_, true_val in zip(result, (dt.datetime, int), (dtime, 42)):
assert isinstance(val, type_)
assert val == true_val
def test_tuple_field_deserialize_invalid_item(self):
field = fields.Tuple([fields.DateTime])
with pytest.raises(ValidationError) as excinfo:
field.deserialize(["badvalue"])
assert excinfo.value.args[0] == {0: ["Not a valid datetime."]}
field = fields.Tuple([fields.Str(), fields.Integer()])
with pytest.raises(ValidationError) as excinfo:
field.deserialize(["good", "bad"])
assert excinfo.value.args[0] == {1: ["Not a valid integer."]}
def test_tuple_field_deserialize_multiple_invalid_items(self):
validator = validate.Range(10, 20, error="Value {input} not in range")
field = fields.Tuple(
[
fields.Int(validate=validator),
fields.Int(validate=validator),
fields.Int(validate=validator),
]
)
with pytest.raises(ValidationError) as excinfo:
field.deserialize([10, 5, 25])
assert len(excinfo.value.args[0]) == 2
assert excinfo.value.args[0][1] == ["Value 5 not in range"]
assert excinfo.value.args[0][2] == ["Value 25 not in range"]
@pytest.mark.parametrize("value", ["notalist", 42, {}])
def test_tuple_field_deserialize_value_that_is_not_a_collection(self, value):
field = fields.Tuple([fields.Str()])
with pytest.raises(ValidationError) as excinfo:
field.deserialize(value)
assert excinfo.value.args[0] == "Not a valid tuple."
def test_tuple_field_deserialize_invalid_length(self):
field = fields.Tuple([fields.Str(), fields.Str()])
with pytest.raises(ValidationError) as excinfo:
field.deserialize([42])
assert excinfo.value.args[0] == "Length must be 2."
def test_constant_field_deserialization(self):
field = fields.Constant("something")
assert field.deserialize("whatever") == "something"
def test_constant_is_always_included_in_deserialized_data(self):
class MySchema(Schema):
foo = fields.Constant(42)
sch = MySchema()
assert sch.load({})["foo"] == 42
assert sch.load({"foo": 24})["foo"] == 42
def test_field_deserialization_with_user_validator_function(self):
field = fields.String(validate=lambda s: s.lower() == "valid")
assert field.deserialize("Valid") == "Valid"
with pytest.raises(ValidationError) as excinfo:
field.deserialize("invalid")
assert excinfo.value.args[0][0] == "Invalid value."
assert type(excinfo.value) == ValidationError
def test_field_deserialization_with_user_validator_class_that_returns_bool(self):