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757 lines (520 loc) · 19.3 KB
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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 = System.String("\ufeffbom")
assert ob.StringField == "\ufeffbom"
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
class PseudoSeq:
def __getitem__(self, idx):
return 0
ob.ObjectField = PseudoSeq()
assert ob.ObjectField.__class__.__name__ == "PseudoSeq"
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)
def test_intptr_construction():
from System import IntPtr, UIntPtr, Int64, UInt64
from ctypes import sizeof, c_void_p
ptr_size = sizeof(c_void_p)
max_intptr = 2 ** (ptr_size * 8 - 1) - 1
min_intptr = -max_intptr - 1
max_uintptr = 2 ** (ptr_size * 8) - 1
min_uintptr = 0
ob = ConversionTest()
assert ob.IntPtrField == IntPtr.Zero
assert ob.UIntPtrField == UIntPtr.Zero
for v in [0, -1, 1024, max_intptr, min_intptr]:
ob.IntPtrField = IntPtr(Int64(v))
assert ob.IntPtrField == IntPtr(v)
assert ob.IntPtrField.ToInt64() == v
for v in [min_intptr - 1, max_intptr + 1]:
with pytest.raises(OverflowError):
IntPtr(v)
for v in [0, 1024, min_uintptr, max_uintptr, max_intptr]:
ob.UIntPtrField = UIntPtr(UInt64(v))
assert ob.UIntPtrField == UIntPtr(v)
assert ob.UIntPtrField.ToUInt64() == v
for v in [min_uintptr - 1, max_uintptr + 1, min_intptr]:
with pytest.raises(OverflowError):
UIntPtr(v)
def test_explicit_conversion():
from operator import index
from System import (
Int64, UInt64, Int32, UInt32, Int16, UInt16, Byte, SByte, Boolean
)
from System import Double, Single
assert int(Boolean(False)) == 0
assert int(Boolean(True)) == 1
for t in [UInt64, UInt32, UInt16, Byte]:
assert index(t(127)) == 127
assert int(t(127)) == 127
assert float(t(127)) == 127.0
for t in [Int64, Int32, Int16, SByte]:
assert index(t(127)) == 127
assert index(t(-127)) == -127
assert int(t(127)) == 127
assert int(t(-127)) == -127
assert float(t(127)) == 127.0
assert float(t(-127)) == -127.0
assert int(Int64(Int64.MaxValue)) == 2**63 - 1
assert int(Int64(Int64.MinValue)) == -2**63
assert int(UInt64(UInt64.MaxValue)) == 2**64 - 1
for t in [Single, Double]:
assert float(t(0.125)) == 0.125
assert int(t(123.4)) == 123
with pytest.raises(TypeError):
index(t(123.4))