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"""Test CLR <-> Python type conversions."""

import operator

import pytest

import System

from Python.Test import ConversionTest, MethodResolutionInt, UnicodeString, CodecResetter

from Python.Runtime import PyObjectConversions

from Python.Runtime.Codecs import RawProxyEncoder

def test_bool_conversion():

"""Test bool conversion."""

ob = ConversionTest()

assert ob.BooleanField is False

assert ob.BooleanField == 0

ob.BooleanField = True

assert ob.BooleanField is True

assert ob.BooleanField == 1

ob.BooleanField = False

assert ob.BooleanField is False

assert ob.BooleanField == 0

with pytest.raises(TypeError):

ob.BooleanField = 1

with pytest.raises(TypeError):

ob.BooleanField = 0

with pytest.raises(TypeError):

ob.BooleanField = None

with pytest.raises(TypeError):

ob.BooleanField = ''

with pytest.raises(TypeError):

ob.BooleanField = System.Boolean(0)

with pytest.raises(TypeError):

ob.BooleanField = System.Boolean(1)

with pytest.raises(TypeError):

ob.BooleanField = System.Boolean('a')

def test_sbyte_conversion():

"""Test sbyte conversion."""

assert System.SByte.MaxValue == 127

assert System.SByte.MinValue == -128

ob = ConversionTest()

assert ob.SByteField == 0

ob.SByteField = 127

assert ob.SByteField == 127

ob.SByteField = -128

assert ob.SByteField == -128

ob.SByteField = System.SByte(127)

assert ob.SByteField == 127

ob.SByteField = System.SByte(-128)

assert ob.SByteField == -128

with pytest.raises(TypeError):

ConversionTest().SByteField = "spam"

with pytest.raises(TypeError):

ConversionTest().SByteField = None

with pytest.raises(OverflowError):

ConversionTest().SByteField = 128

with pytest.raises(OverflowError):

ConversionTest().SByteField = -129

with pytest.raises(OverflowError):

_ = System.SByte(128)

with pytest.raises(OverflowError):

_ = System.SByte(-129)

def test_byte_conversion():

"""Test byte conversion."""

assert System.Byte.MaxValue == 255

assert System.Byte.MinValue == 0

ob = ConversionTest()

assert ob.ByteField == 0

ob.ByteField = 255

assert ob.ByteField == 255

ob.ByteField = 0

assert ob.ByteField == 0

ob.ByteField = System.Byte(255)

assert ob.ByteField == 255

ob.ByteField = System.Byte(0)

assert ob.ByteField == 0

with pytest.raises(TypeError):

ConversionTest().ByteField = "spam"

with pytest.raises(TypeError):

ConversionTest().ByteField = None

with pytest.raises(OverflowError):

ConversionTest().ByteField = 256

with pytest.raises(OverflowError):

ConversionTest().ByteField = -1

with pytest.raises(OverflowError):

_ = System.Byte(256)

with pytest.raises(OverflowError):

_ = System.Byte(-1)

def test_char_conversion():

"""Test char conversion."""

assert System.Char.MaxValue == chr(65535)

assert System.Char.MinValue == chr(0)

ob = ConversionTest()

assert ob.CharField == u'A'

ob.CharField = 'B'

assert ob.CharField == u'B'

ob.CharField = u'B'

assert ob.CharField == u'B'

ob.CharField = 67

assert ob.CharField == u'C'

with pytest.raises(OverflowError):

ConversionTest().CharField = 65536

with pytest.raises(OverflowError):

ConversionTest().CharField = -1

with pytest.raises(TypeError):

ConversionTest().CharField = None

def test_int16_conversion():

"""Test int16 conversion."""

assert System.Int16.MaxValue == 32767

assert System.Int16.MinValue == -32768

ob = ConversionTest()

assert ob.Int16Field == 0

ob.Int16Field = 32767

assert ob.Int16Field == 32767

ob.Int16Field = -32768

assert ob.Int16Field == -32768

ob.Int16Field = System.Int16(32767)

assert ob.Int16Field == 32767

ob.Int16Field = System.Int16(-32768)

assert ob.Int16Field == -32768

with pytest.raises(TypeError):

ConversionTest().Int16Field = "spam"

with pytest.raises(TypeError):

ConversionTest().Int16Field = None

with pytest.raises(OverflowError):

ConversionTest().Int16Field = 32768

with pytest.raises(OverflowError):

ConversionTest().Int16Field = -32769

with pytest.raises(OverflowError):

_ = System.Int16(32768)

with pytest.raises(OverflowError):

_ = System.Int16(-32769)

def test_int32_conversion():

"""Test int32 conversion."""

assert System.Int32.MaxValue == 2147483647

assert System.Int32.MinValue == -2147483648

ob = ConversionTest()

assert ob.Int32Field == 0

ob.Int32Field = 2147483647

assert ob.Int32Field == 2147483647

ob.Int32Field = -2147483648

assert ob.Int32Field == -2147483648

ob.Int32Field = System.Int32(2147483647)

assert ob.Int32Field == 2147483647

ob.Int32Field = System.Int32(-2147483648)

assert ob.Int32Field == -2147483648

with pytest.raises(TypeError):

ConversionTest().Int32Field = "spam"

with pytest.raises(TypeError):

ConversionTest().Int32Field = None

with pytest.raises(OverflowError):

ConversionTest().Int32Field = 2147483648

with pytest.raises(OverflowError):

ConversionTest().Int32Field = -2147483649

with pytest.raises(OverflowError):

_ = System.Int32(2147483648)

with pytest.raises(OverflowError):

_ = System.Int32(-2147483649)

def test_int64_conversion():

"""Test int64 conversion."""

assert System.Int64.MaxValue == 9223372036854775807

assert System.Int64.MinValue == -9223372036854775808

ob = ConversionTest()

assert ob.Int64Field == 0

ob.Int64Field = 9223372036854775807

assert ob.Int64Field == 9223372036854775807

ob.Int64Field = -9223372036854775808

assert ob.Int64Field == -9223372036854775808

ob.Int64Field = System.Int64(9223372036854775807)

assert ob.Int64Field == 9223372036854775807

ob.Int64Field = System.Int64(-9223372036854775808)

assert ob.Int64Field == -9223372036854775808

with pytest.raises(TypeError):

ConversionTest().Int64Field = "spam"

with pytest.raises(TypeError):

ConversionTest().Int64Field = None

with pytest.raises(OverflowError):

ConversionTest().Int64Field = 9223372036854775808

with pytest.raises(OverflowError):

ConversionTest().Int64Field = -9223372036854775809

with pytest.raises(OverflowError):

_ = System.Int64(9223372036854775808)

with pytest.raises(OverflowError):

_ = System.Int64(-9223372036854775809)

def test_uint16_conversion():

"""Test uint16 conversion."""

assert System.UInt16.MaxValue == 65535

assert System.UInt16.MinValue == 0

ob = ConversionTest()

assert ob.UInt16Field == 0

ob.UInt16Field = 65535

assert ob.UInt16Field == 65535

ob.UInt16Field = -0

assert ob.UInt16Field == 0

ob.UInt16Field = System.UInt16(65535)

assert ob.UInt16Field == 65535

ob.UInt16Field = System.UInt16(0)

assert ob.UInt16Field == 0

with pytest.raises(TypeError):

ConversionTest().UInt16Field = "spam"

with pytest.raises(TypeError):

ConversionTest().UInt16Field = None

with pytest.raises(OverflowError):

ConversionTest().UInt16Field = 65536

with pytest.raises(OverflowError):

ConversionTest().UInt16Field = -1

with pytest.raises(OverflowError):

_ = System.UInt16(65536)

with pytest.raises(OverflowError):

_ = System.UInt16(-1)

def test_uint32_conversion():

"""Test uint32 conversion."""

assert System.UInt32.MaxValue == 4294967295

assert System.UInt32.MinValue == 0

ob = ConversionTest()

assert ob.UInt32Field == 0

ob.UInt32Field = 4294967295

assert ob.UInt32Field == 4294967295

ob.UInt32Field = -0

assert ob.UInt32Field == 0

ob.UInt32Field = System.UInt32(4294967295)

assert ob.UInt32Field == 4294967295

ob.UInt32Field = System.UInt32(0)

assert ob.UInt32Field == 0

with pytest.raises(TypeError):

ConversionTest().UInt32Field = "spam"

with pytest.raises(TypeError):

ConversionTest().UInt32Field = None

with pytest.raises(OverflowError):

ConversionTest().UInt32Field = 4294967296

with pytest.raises(OverflowError):

ConversionTest().UInt32Field = -1

with pytest.raises(OverflowError):

_ = System.UInt32(4294967296)

with pytest.raises(OverflowError):

_ = System.UInt32(-1)

def test_uint64_conversion():

"""Test uint64 conversion."""

assert System.UInt64.MaxValue == 18446744073709551615

assert System.UInt64.MinValue == 0

ob = ConversionTest()

assert ob.UInt64Field == 0

ob.UInt64Field = 18446744073709551615

assert ob.UInt64Field == 18446744073709551615

ob.UInt64Field = -0

assert ob.UInt64Field == 0

ob.UInt64Field = System.UInt64(18446744073709551615)

assert ob.UInt64Field == 18446744073709551615

ob.UInt64Field = System.UInt64(0)

assert ob.UInt64Field == 0

with pytest.raises(TypeError):

ConversionTest().UInt64Field = 0.5

with pytest.raises(TypeError):

ConversionTest().UInt64Field = "spam"

with pytest.raises(TypeError):

ConversionTest().UInt64Field = None

with pytest.raises(OverflowError):

ConversionTest().UInt64Field = 18446744073709551616

with pytest.raises(OverflowError):

ConversionTest().UInt64Field = -1

with pytest.raises(OverflowError):

_ = System.UInt64((18446744073709551616))

with pytest.raises(OverflowError):

_ = System.UInt64(-1)

def test_single_conversion():

"""Test single conversion."""

assert System.Single.MaxValue == pytest.approx(3.402823e38)

assert System.Single.MinValue == pytest.approx(-3.402823e38)

ob = ConversionTest()

assert ob.SingleField == 0.0

ob.SingleField = 3.402823e38

assert ob.SingleField == System.Single(3.402823e38)

ob.SingleField = -3.402823e38

assert ob.SingleField == System.Single(-3.402823e38)

with pytest.raises(TypeError):

ConversionTest().SingleField = "spam"

with pytest.raises(TypeError):

ConversionTest().SingleField = None

with pytest.raises(OverflowError):

ConversionTest().SingleField = 3.402824e38

with pytest.raises(OverflowError):

ConversionTest().SingleField = -3.402824e38

with pytest.raises(OverflowError):

_ = System.Single(3.402824e38)

with pytest.raises(OverflowError):

_ = System.Single(-3.402824e38)

def test_double_conversion():

"""Test double conversion."""

assert System.Double.MaxValue == 1.7976931348623157e308

assert System.Double.MinValue == -1.7976931348623157e308

ob = ConversionTest()

assert ob.DoubleField == 0.0

ob.DoubleField = 1.7976931348623157e308

assert ob.DoubleField == 1.7976931348623157e308

ob.DoubleField = -1.7976931348623157e308

assert ob.DoubleField == -1.7976931348623157e308

ob.DoubleField = System.Double(1.7976931348623157e308)

assert ob.DoubleField == 1.7976931348623157e308

ob.DoubleField = System.Double(-1.7976931348623157e308)

assert ob.DoubleField == -1.7976931348623157e308

with pytest.raises(TypeError):

ConversionTest().DoubleField = "spam"

with pytest.raises(TypeError):

ConversionTest().DoubleField = None

def test_decimal_conversion():

"""Test decimal conversion."""

from System import Decimal

max_d = Decimal.Parse("79228162514264337593543950335")

min_d = Decimal.Parse("-79228162514264337593543950335")

assert Decimal.ToInt64(Decimal(10)) == 10

ob = ConversionTest()

assert ob.DecimalField == Decimal(0)

ob.DecimalField = Decimal(10)

assert ob.DecimalField == Decimal(10)

ob.DecimalField = Decimal.One

assert ob.DecimalField == Decimal.One

ob.DecimalField = Decimal.Zero

assert ob.DecimalField == Decimal.Zero

ob.DecimalField = max_d

assert ob.DecimalField == max_d

ob.DecimalField = min_d

assert ob.DecimalField == min_d

with pytest.raises(TypeError):

ConversionTest().DecimalField = None

with pytest.raises(TypeError):

ConversionTest().DecimalField = "spam"

with pytest.raises(TypeError):

ConversionTest().DecimalField = 1

def test_string_conversion():

"""Test string / unicode conversion."""

ob = ConversionTest()

assert ob.StringField == "spam"

assert ob.StringField == u"spam"

ob.StringField = "eggs"

assert ob.StringField == "eggs"

assert ob.StringField == u"eggs"

ob.StringField = u"spam"

assert ob.StringField == "spam"

assert ob.StringField == u"spam"

ob.StringField = u'\uffff\uffff'

assert ob.StringField == u'\uffff\uffff'

ob.StringField = System.String("spam")

assert ob.StringField == "spam"

assert ob.StringField == u"spam"

ob.StringField = System.String(u'\uffff\uffff')

assert ob.StringField == u'\uffff\uffff'

ob.StringField = None

assert ob.StringField is None

with pytest.raises(TypeError):

ConversionTest().StringField = 1

world = UnicodeString()

test_unicode_str = u"안녕"

assert test_unicode_str == str(world.value)

assert test_unicode_str == str(world.GetString())

assert test_unicode_str == str(world)

def test_interface_conversion():

"""Test interface conversion."""

from Python.Test import Spam, ISpam

ob = ConversionTest()

assert ISpam(ob.SpamField).GetValue() == "spam"

assert ob.SpamField.GetValue() == "spam"

ob.SpamField = Spam("eggs")

assert ISpam(ob.SpamField).GetValue() == "eggs"

assert ob.SpamField.GetValue() == "eggs"

# need to test spam subclass here.

ob.SpamField = None

assert ob.SpamField is None

with pytest.raises(TypeError):

ob = ConversionTest()

ob.SpamField = System.String("bad")

with pytest.raises(TypeError):

ob = ConversionTest()

ob.SpamField = System.Int32(1)

def test_object_conversion():

"""Test ob conversion."""

from Python.Test import Spam

ob = ConversionTest()

assert ob.ObjectField is None

ob.ObjectField = Spam("eggs")

assert ob.ObjectField.__class__.__name__ == "Spam"

assert ob.ObjectField.GetValue() == "eggs"

ob.ObjectField = None

assert ob.ObjectField is None

ob.ObjectField = System.String("spam")

assert ob.ObjectField == "spam"

ob.ObjectField = System.Int32(1)

assert ob.ObjectField == 1

# need to test subclass here

class Foo(object):

pass

ob.ObjectField = Foo

assert ob.ObjectField == Foo

def test_null_conversion():

"""Test null conversion."""

import System

ob = ConversionTest()

ob.StringField = None

assert ob.StringField is None

ob.ObjectField = None

assert ob.ObjectField is None

ob.SpamField = None

assert ob.SpamField is None

pi = 22/7

assert ob.Echo[System.Double](pi) == pi

assert ob.Echo[System.DateTime](None) is None

# Primitive types and enums should not be set to null.

with pytest.raises(TypeError):

ConversionTest().Int32Field = None

with pytest.raises(TypeError):

ConversionTest().EnumField = None

def test_byte_array_conversion():

"""Test byte array conversion."""

ob = ConversionTest()

assert ob.ByteArrayField is None

ob.ByteArrayField = [0, 1, 2, 3, 4]

array = ob.ByteArrayField

assert len(array) == 5

assert array[0] == 0

assert array[4] == 4

value = b"testing"

ob.ByteArrayField = value

array = ob.ByteArrayField

for i, _ in enumerate(value):

assert array[i] == operator.getitem(value, i)

def test_sbyte_array_conversion():

"""Test sbyte array conversion."""

ob = ConversionTest()

assert ob.SByteArrayField is None

ob.SByteArrayField = [0, 1, 2, 3, 4]

array = ob.SByteArrayField

assert len(array) == 5

assert array[0] == 0

assert array[4] == 4

value = b"testing"

ob.SByteArrayField = value

array = ob.SByteArrayField

for i, _ in enumerate(value):

assert array[i] == operator.getitem(value, i)

def test_codecs():

"""Test codec registration from Python"""

class ListAsRawEncoder(RawProxyEncoder):

__namespace__ = "Python.Test"

def CanEncode(self, clr_type):

return clr_type.Name == "List`1" and clr_type.Namespace == "System.Collections.Generic"

list_raw_encoder = ListAsRawEncoder()

PyObjectConversions.RegisterEncoder(list_raw_encoder)

ob = ConversionTest()

l = ob.ListField

l.Add(42)

assert ob.ListField.Count == 1

CodecResetter.Reset()

def test_int_param_resolution_required():

"""Test resolution of `int` parameters when resolution is needed"""

mri = MethodResolutionInt()

data = list(mri.MethodA(0x1000, 10))

assert len(data) == 10

assert data[0] == 0

data = list(mri.MethodA(0x100000000, 10))

assert len(data) == 10

assert data[0] == 0

def test_iconvertible_conversion():

change_type = System.Convert.ChangeType

assert 1024 == change_type(1024, System.Int32)

assert 1024 == change_type(1024, System.Int64)

assert 1024 == change_type(1024, System.Int16)