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test_method.py
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713 lines (556 loc) · 26.5 KB
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# -*- coding: utf-8 -*-
import unittest
import System
from Python.Test import MethodTest
from _compat import PY2, long, unichr
class MethodTests(unittest.TestCase):
"""Test CLR method support."""
def test_instance_method_descriptor(self):
"""Test instance method descriptor behavior."""
with self.assertRaises(AttributeError):
MethodTest().PublicMethod = 0
with self.assertRaises(AttributeError):
MethodTest.PublicMethod = 0
with self.assertRaises(AttributeError):
del MethodTest().PublicMethod
with self.assertRaises(AttributeError):
del MethodTest.PublicMethod
def test_static_method_descriptor(self):
"""Test static method descriptor behavior."""
with self.assertRaises(AttributeError):
MethodTest().PublicStaticMethod = 0
with self.assertRaises(AttributeError):
MethodTest.PublicStaticMethod = 0
with self.assertRaises(AttributeError):
del MethodTest().PublicStaticMethod
with self.assertRaises(AttributeError):
del MethodTest.PublicStaticMethod
def test_public_instance_method(self):
"""Test public instance method visibility."""
ob = MethodTest()
self.assertTrue(ob.PublicMethod() == "public")
def test_public_static_method(self):
"""Test public static method visibility."""
ob = MethodTest()
self.assertTrue(MethodTest.PublicStaticMethod() == "public static")
self.assertTrue(ob.PublicStaticMethod() == "public static")
def test_protected_instance_method(self):
"""Test protected instance method visibility."""
ob = MethodTest()
self.assertTrue(ob.ProtectedMethod() == "protected")
def test_protected_static_method(self):
"""Test protected static method visibility."""
ob = MethodTest()
result = "protected static"
self.assertTrue(MethodTest.ProtectedStaticMethod() == result)
self.assertTrue(ob.ProtectedStaticMethod() == result)
def test_internal_method(self):
"""Test internal method visibility."""
with self.assertRaises(AttributeError):
_ = MethodTest().InternalMethod
with self.assertRaises(AttributeError):
_ = MethodTest.InternalMethod
with self.assertRaises(AttributeError):
_ = MethodTest().InternalStaticMethod
with self.assertRaises(AttributeError):
_ = MethodTest.InternalStaticMethod
def test_private_method(self):
"""Test private method visibility."""
with self.assertRaises(AttributeError):
_ = MethodTest().PrivateMethod
with self.assertRaises(AttributeError):
_ = MethodTest.PrivateMethod
with self.assertRaises(AttributeError):
_ = MethodTest().PrivateStaticMethod
with self.assertRaises(AttributeError):
_ = MethodTest.PrivateStaticMethod
def test_unbound_managed_method_call(self):
"""Test calling unbound managed methods."""
from Python.Test import MethodTestSub
ob = MethodTest()
self.assertTrue(MethodTest.PublicMethod(ob) == "public")
with self.assertRaises(TypeError):
MethodTest.PublicMethod()
ob = MethodTestSub()
self.assertTrue(MethodTestSub.PublicMethod(ob) == "public")
self.assertTrue(MethodTestSub.PublicMethod(ob, "echo") == "echo")
with self.assertRaises(TypeError):
MethodTestSub.PublicMethod("echo")
def test_overloaded_method_inheritance(self):
"""Test that overloads are inherited properly."""
from Python.Test import MethodTestSub
ob = MethodTest()
self.assertTrue(ob.PublicMethod() == "public")
with self.assertRaises(TypeError):
ob = MethodTest()
ob.PublicMethod("echo")
ob = MethodTestSub()
self.assertTrue(ob.PublicMethod() == "public")
self.assertTrue(ob.PublicMethod("echo") == "echo")
def test_method_descriptor_abuse(self):
"""Test method descriptor abuse."""
desc = MethodTest.__dict__['PublicMethod']
with self.assertRaises(TypeError):
desc.__get__(0, 0)
with self.assertRaises(AttributeError):
desc.__set__(0, 0)
def test_method_docstrings(self):
"""Test standard method docstring generation"""
method = MethodTest.GetType
value = 'System.Type GetType()'
self.assertTrue(method.__doc__ == value)
# ======================================================================
# Tests of specific argument and result conversion scenarios
# ======================================================================
def test_method_call_enum_conversion(self):
"""Test enum conversion in method call."""
from System import TypeCode
ob = MethodTest()
r = ob.TestEnumConversion(TypeCode.Int32)
self.assertTrue(r == TypeCode.Int32)
def test_method_call_flags_conversion(self):
"""Test flags conversion in method call."""
from System.IO import FileAccess
ob = MethodTest()
flags = FileAccess.Read | FileAccess.Write
r = ob.TestFlagsConversion(flags)
self.assertTrue(r == flags)
def test_method_call_struct_conversion(self):
"""Test struct conversion in method call."""
from System import Guid
ob = MethodTest()
guid = Guid.NewGuid()
temp = guid.ToString()
r = ob.TestStructConversion(guid)
self.assertTrue(r.ToString() == temp)
def test_subclass_instance_conversion(self):
"""Test subclass instance conversion in method call."""
class TestSubException(System.Exception):
pass
ob = MethodTest()
instance = TestSubException()
result = ob.TestSubclassConversion(instance)
self.assertTrue(isinstance(result, System.Exception))
def test_null_array_conversion(self):
"""Test null array conversion in method call."""
ob = MethodTest()
r = ob.TestNullArrayConversion(None)
self.assertTrue(r is None)
def test_string_params_args(self):
"""Test use of string params."""
result = MethodTest.TestStringParamsArg('one', 'two', 'three')
self.assertEqual(result.Length, 3)
self.assertEqual(len(result), 3, result)
self.assertTrue(result[0] == 'one')
self.assertTrue(result[1] == 'two')
self.assertTrue(result[2] == 'three')
result = MethodTest.TestStringParamsArg(['one', 'two', 'three'])
self.assertTrue(len(result) == 3)
self.assertTrue(result[0] == 'one')
self.assertTrue(result[1] == 'two')
self.assertTrue(result[2] == 'three')
def test_object_params_args(self):
"""Test use of object params."""
result = MethodTest.TestObjectParamsArg('one', 'two', 'three')
self.assertEqual(len(result), 3, result)
self.assertTrue(result[0] == 'one')
self.assertTrue(result[1] == 'two')
self.assertTrue(result[2] == 'three')
result = MethodTest.TestObjectParamsArg(['one', 'two', 'three'])
self.assertEqual(len(result), 3, result)
self.assertTrue(result[0] == 'one')
self.assertTrue(result[1] == 'two')
self.assertTrue(result[2] == 'three')
def test_value_params_args(self):
"""Test use of value type params."""
result = MethodTest.TestValueParamsArg(1, 2, 3)
self.assertEqual(len(result), 3)
self.assertTrue(result[0] == 1)
self.assertTrue(result[1] == 2)
self.assertTrue(result[2] == 3)
result = MethodTest.TestValueParamsArg([1, 2, 3])
self.assertEqual(len(result), 3)
self.assertTrue(result[0] == 1)
self.assertTrue(result[1] == 2)
self.assertTrue(result[2] == 3)
def test_non_params_array_in_last_place(self):
"""Test overload resolution with of non-"params" array as
last parameter."""
result = MethodTest.TestNonParamsArrayInLastPlace(1, 2, 3)
self.assertTrue(result)
def test_string_out_params(self):
"""Test use of string out-parameters."""
result = MethodTest.TestStringOutParams("hi", "there")
self.assertTrue(isinstance(result, tuple))
self.assertEqual(len(result), 2)
self.assertTrue(result[0] is True)
self.assertTrue(result[1] == "output string")
result = MethodTest.TestStringOutParams("hi", None)
self.assertTrue(isinstance(result, tuple))
self.assertEqual(len(result), 2)
self.assertTrue(result[0] is True)
self.assertTrue(result[1] == "output string")
def test_string_ref_params(self):
"""Test use of string byref parameters."""
result = MethodTest.TestStringRefParams("hi", "there")
self.assertTrue(isinstance(result, tuple))
self.assertEqual(len(result), 2)
self.assertTrue(result[0] is True)
self.assertTrue(result[1] == "output string")
result = MethodTest.TestStringRefParams("hi", None)
self.assertTrue(isinstance(result, tuple))
self.assertEqual(len(result), 2)
self.assertTrue(result[0] is True)
self.assertTrue(result[1] == "output string")
def test_value_out_params(self):
"""Test use of value type out-parameters."""
result = MethodTest.TestValueOutParams("hi", 1)
self.assertTrue(isinstance(result, tuple))
self.assertEqual(len(result), 2)
self.assertTrue(result[0] is True)
self.assertTrue(result[1] == 42)
# None cannot be converted to a value type like int, long, etc.
with self.assertRaises(TypeError):
MethodTest.TestValueOutParams("hi", None)
def test_value_ref_params(self):
"""Test use of value type byref parameters."""
result = MethodTest.TestValueRefParams("hi", 1)
self.assertTrue(isinstance(result, tuple))
self.assertEqual(len(result), 2)
self.assertTrue(result[0] is True)
self.assertTrue(result[1] == 42)
# None cannot be converted to a value type like int, long, etc.
with self.assertRaises(TypeError):
MethodTest.TestValueRefParams("hi", None)
def test_object_out_params(self):
"""Test use of object out-parameters."""
result = MethodTest.TestObjectOutParams("hi", MethodTest())
self.assertTrue(isinstance(result, tuple))
self.assertTrue(len(result) == 2)
self.assertTrue(result[0] is True)
self.assertTrue(isinstance(result[1], System.Exception))
result = MethodTest.TestObjectOutParams("hi", None)
self.assertTrue(isinstance(result, tuple))
self.assertEqual(len(result), 2)
self.assertTrue(result[0] is True)
self.assertTrue(isinstance(result[1], System.Exception))
def test_object_ref_params(self):
"""Test use of object byref parameters."""
result = MethodTest.TestObjectRefParams("hi", MethodTest())
self.assertTrue(isinstance(result, tuple))
self.assertEqual(len(result), 2)
self.assertTrue(result[0] is True)
self.assertTrue(isinstance(result[1], System.Exception))
result = MethodTest.TestObjectRefParams("hi", None)
self.assertTrue(isinstance(result, tuple))
self.assertEqual(len(result), 2)
self.assertTrue(result[0] is True)
self.assertTrue(isinstance(result[1], System.Exception))
def test_struct_out_params(self):
"""Test use of struct out-parameters."""
result = MethodTest.TestStructOutParams("hi", System.Guid.NewGuid())
self.assertTrue(isinstance(result, tuple))
self.assertEqual(len(result), 2)
self.assertTrue(result[0] is True)
self.assertTrue(isinstance(result[1], System.Guid))
# None cannot be converted to a value type like a struct
with self.assertRaises(TypeError):
MethodTest.TestValueRefParams("hi", None)
def test_struct_ref_params(self):
"""Test use of struct byref parameters."""
result = MethodTest.TestStructRefParams("hi", System.Guid.NewGuid())
self.assertTrue(isinstance(result, tuple))
self.assertTrue(len(result) == 2)
self.assertTrue(result[0] is True)
self.assertTrue(isinstance(result[1], System.Guid))
# None cannot be converted to a value type like a struct
with self.assertRaises(TypeError):
MethodTest.TestValueRefParams("hi", None)
def test_void_single_out_param(self):
"""Test void method with single out-parameter."""
result = MethodTest.TestVoidSingleOutParam(9)
self.assertTrue(result == 42)
# None cannot be converted to a value type
with self.assertRaises(TypeError):
MethodTest.TestVoidSingleOutParam(None)
def test_void_single_ref_param(self):
"""Test void method with single ref-parameter."""
result = MethodTest.TestVoidSingleRefParam(9)
self.assertTrue(result == 42)
# None cannot be converted to a value type
with self.assertRaises(TypeError):
MethodTest.TestVoidSingleRefParam(None)
def test_single_default_param(self):
"""Test void method with single ref-parameter."""
result = MethodTest.TestSingleDefaultParam()
self.assertTrue(result == 5)
def test_one_arg_and_two_default_param(self):
"""Test void method with single ref-parameter."""
result = MethodTest.TestOneArgAndTwoDefaultParam(11)
self.assertTrue(result == 22)
result = MethodTest.TestOneArgAndTwoDefaultParam(15)
self.assertTrue(result == 26)
result = MethodTest.TestOneArgAndTwoDefaultParam(20)
self.assertTrue(result == 31)
def test_two_default_param(self):
"""Test void method with single ref-parameter."""
result = MethodTest.TestTwoDefaultParam()
self.assertTrue(result == 11)
def test_explicit_selection_with_out_modifier(self):
"""Check explicit overload selection with out modifiers."""
refstr = System.String("").GetType().MakeByRefType()
result = MethodTest.TestStringOutParams.__overloads__[str, refstr](
"hi", "there")
self.assertTrue(isinstance(result, tuple))
self.assertTrue(len(result) == 2)
self.assertTrue(result[0] is True)
self.assertTrue(result[1] == "output string")
result = MethodTest.TestStringOutParams.__overloads__[str, refstr](
"hi", None)
self.assertTrue(isinstance(result, tuple))
self.assertTrue(len(result) == 2)
self.assertTrue(result[0] is True)
self.assertTrue(result[1] == "output string")
def test_explicit_selection_with_ref_modifier(self):
"""Check explicit overload selection with ref modifiers."""
refstr = System.String("").GetType().MakeByRefType()
result = MethodTest.TestStringRefParams.__overloads__[str, refstr](
"hi", "there")
self.assertTrue(isinstance(result, tuple))
self.assertTrue(len(result) == 2)
self.assertTrue(result[0] is True)
self.assertTrue(result[1] == "output string")
result = MethodTest.TestStringRefParams.__overloads__[str, refstr](
"hi", None)
self.assertTrue(isinstance(result, tuple))
self.assertTrue(len(result) == 2)
self.assertTrue(result[0] is True)
self.assertTrue(result[1] == "output string")
def test_explicit_overload_selection(self):
"""Check explicit overload selection using [] syntax."""
from Python.Test import ISayHello1, InterfaceTest, ShortEnum
from System import Array
inst = InterfaceTest()
value = MethodTest.Overloaded.__overloads__[System.Boolean](True)
self.assertTrue(value is True)
value = MethodTest.Overloaded.__overloads__[bool](True)
self.assertTrue(value is True)
value = MethodTest.Overloaded.__overloads__[System.Byte](255)
self.assertTrue(value == 255)
value = MethodTest.Overloaded.__overloads__[System.SByte](127)
self.assertTrue(value == 127)
value = MethodTest.Overloaded.__overloads__[System.Char](u'A')
self.assertTrue(value == u'A')
value = MethodTest.Overloaded.__overloads__[System.Char](65535)
self.assertTrue(value == unichr(65535))
value = MethodTest.Overloaded.__overloads__[System.Int16](32767)
self.assertTrue(value == 32767)
value = MethodTest.Overloaded.__overloads__[System.Int32](2147483647)
self.assertTrue(value == 2147483647)
value = MethodTest.Overloaded.__overloads__[int](2147483647)
self.assertTrue(value == 2147483647)
value = MethodTest.Overloaded.__overloads__[System.Int64](
long(9223372036854775807))
self.assertTrue(value == long(9223372036854775807))
# Python 3 has no explicit long type, use System.Int64 instead
if PY2:
value = MethodTest.Overloaded.__overloads__[long](
long(9223372036854775807))
self.assertTrue(value == long(9223372036854775807))
value = MethodTest.Overloaded.__overloads__[System.UInt16](65000)
self.assertTrue(value == 65000)
value = MethodTest.Overloaded.__overloads__[System.UInt32](
long(4294967295))
self.assertTrue(value == long(4294967295))
value = MethodTest.Overloaded.__overloads__[System.UInt64](
long(18446744073709551615))
self.assertTrue(value == long(18446744073709551615))
value = MethodTest.Overloaded.__overloads__[System.Single](3.402823e38)
self.assertTrue(value == 3.402823e38)
value = MethodTest.Overloaded.__overloads__[System.Double](
1.7976931348623157e308)
self.assertTrue(value == 1.7976931348623157e308)
value = MethodTest.Overloaded.__overloads__[float](
1.7976931348623157e308)
self.assertTrue(value == 1.7976931348623157e308)
value = MethodTest.Overloaded.__overloads__[System.Decimal](
System.Decimal.One)
self.assertTrue(value == System.Decimal.One)
value = MethodTest.Overloaded.__overloads__[System.String]("spam")
self.assertTrue(value == "spam")
value = MethodTest.Overloaded.__overloads__[str]("spam")
self.assertTrue(value == "spam")
value = MethodTest.Overloaded.__overloads__[ShortEnum](ShortEnum.Zero)
self.assertTrue(value == ShortEnum.Zero)
value = MethodTest.Overloaded.__overloads__[System.Object](inst)
self.assertTrue(value.__class__ == inst.__class__)
value = MethodTest.Overloaded.__overloads__[InterfaceTest](inst)
self.assertTrue(value.__class__ == inst.__class__)
value = MethodTest.Overloaded.__overloads__[ISayHello1](inst)
self.assertTrue(value.__class__ == inst.__class__)
atype = Array[System.Object]
value = MethodTest.Overloaded.__overloads__[str, int, atype](
"one", 1, atype([1, 2, 3]))
self.assertTrue(value == 3)
value = MethodTest.Overloaded.__overloads__[str, int]("one", 1)
self.assertTrue(value == 1)
value = MethodTest.Overloaded.__overloads__[int, str](1, "one")
self.assertTrue(value == 1)
def test_overload_selection_with_array_types(self):
"""Check overload selection using array types."""
from Python.Test import ISayHello1, InterfaceTest, ShortEnum
from System import Array
inst = InterfaceTest()
vtype = Array[System.Boolean]
input_ = vtype([True, True])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] is True)
self.assertTrue(value[1] is True)
vtype = Array[bool]
input_ = vtype([True, True])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] is True)
self.assertTrue(value[1] is True)
vtype = Array[System.Byte]
input_ = vtype([0, 255])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == 0)
self.assertTrue(value[1] == 255)
vtype = Array[System.SByte]
input_ = vtype([0, 127])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == 0)
self.assertTrue(value[1] == 127)
vtype = Array[System.Char]
input_ = vtype([u'A', u'Z'])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == u'A')
self.assertTrue(value[1] == u'Z')
vtype = Array[System.Char]
input_ = vtype([0, 65535])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == unichr(0))
self.assertTrue(value[1] == unichr(65535))
vtype = Array[System.Int16]
input_ = vtype([0, 32767])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == 0)
self.assertTrue(value[1] == 32767)
vtype = Array[System.Int32]
input_ = vtype([0, 2147483647])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == 0)
self.assertTrue(value[1] == 2147483647)
vtype = Array[int]
input_ = vtype([0, 2147483647])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == 0)
self.assertTrue(value[1] == 2147483647)
vtype = Array[System.Int64]
input_ = vtype([0, long(9223372036854775807)])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == 0)
self.assertTrue(value[1] == long(9223372036854775807))
# Python 3 has no explicit long type, use System.Int64 instead
if PY2:
vtype = Array[long]
input_ = vtype([0, long(9223372036854775807)])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == 0)
self.assertTrue(value[1] == long(9223372036854775807))
vtype = Array[System.UInt16]
input_ = vtype([0, 65000])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == 0)
self.assertTrue(value[1] == 65000)
vtype = Array[System.UInt32]
input_ = vtype([0, long(4294967295)])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == 0)
self.assertTrue(value[1] == long(4294967295))
vtype = Array[System.UInt64]
input_ = vtype([0, long(18446744073709551615)])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == 0)
self.assertTrue(value[1] == long(18446744073709551615))
vtype = Array[System.Single]
input_ = vtype([0.0, 3.402823e38])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == 0.0)
self.assertTrue(value[1] == 3.402823e38)
vtype = Array[System.Double]
input_ = vtype([0.0, 1.7976931348623157e308])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == 0.0)
self.assertTrue(value[1] == 1.7976931348623157e308)
vtype = Array[float]
input_ = vtype([0.0, 1.7976931348623157e308])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == 0.0)
self.assertTrue(value[1] == 1.7976931348623157e308)
vtype = Array[System.Decimal]
input_ = vtype([System.Decimal.Zero, System.Decimal.One])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == System.Decimal.Zero)
self.assertTrue(value[1] == System.Decimal.One)
vtype = Array[System.String]
input_ = vtype(["one", "two"])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == "one")
self.assertTrue(value[1] == "two")
vtype = Array[str]
input_ = vtype(["one", "two"])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == "one")
self.assertTrue(value[1] == "two")
vtype = Array[ShortEnum]
input_ = vtype([ShortEnum.Zero, ShortEnum.One])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0] == ShortEnum.Zero)
self.assertTrue(value[1] == ShortEnum.One)
vtype = Array[System.Object]
input_ = vtype([inst, inst])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0].__class__ == inst.__class__)
self.assertTrue(value[1].__class__ == inst.__class__)
vtype = Array[InterfaceTest]
input_ = vtype([inst, inst])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0].__class__ == inst.__class__)
self.assertTrue(value[1].__class__ == inst.__class__)
vtype = Array[ISayHello1]
input_ = vtype([inst, inst])
value = MethodTest.Overloaded.__overloads__[vtype](input_)
self.assertTrue(value[0].__class__ == inst.__class__)
self.assertTrue(value[1].__class__ == inst.__class__)
def test_explicit_overload_selection_failure(self):
"""Check that overload selection fails correctly."""
with self.assertRaises(TypeError):
_ = MethodTest.Overloaded.__overloads__[System.Type](True)
with self.assertRaises(TypeError):
_ = MethodTest.Overloaded.__overloads__[int, int](1, 1)
with self.assertRaises(TypeError):
_ = MethodTest.Overloaded.__overloads__[str, int, int]("", 1, 1)
with self.assertRaises(TypeError):
_ = MethodTest.Overloaded.__overloads__[int, long](1)
def test_we_can_bind_to_encoding_get_string(self):
"""Check that we can bind to the Encoding.GetString method
with variables."""
from System.Text import Encoding
from System.IO import MemoryStream
my_bytes = Encoding.UTF8.GetBytes('Some testing string')
stream = MemoryStream()
stream.Write(my_bytes, 0, my_bytes.Length)
stream.Position = 0
buff = System.Array.CreateInstance(System.Byte, 3)
buff.Initialize()
data = []
read = 1
while read > 0:
read, _ = stream.Read(buff, 0, buff.Length)
temp = Encoding.UTF8.GetString(buff, 0, read)
data.append(temp)
data = ''.join(data)
self.assertEqual(data, 'Some testing string')
def test_suite():
return unittest.makeSuite(MethodTests)