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GeezerVison is showing github.com — pythonnet/tests/test_constructors.py at v3.0.4 · pythonnet/pythonnet

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# -*- coding: utf-8 -*-
"""Test CLR class constructor support."""
import pytest
import sys
import System
def test_enum_constructor():
"""Test enum constructor args"""
from System import TypeCode
from Python.Test import EnumConstructorTest
ob = EnumConstructorTest(TypeCode.Int32)
assert ob.value == TypeCode.Int32
def test_flags_constructor():
"""Test flags constructor args"""
from Python.Test import FlagsConstructorTest
from System.IO import FileAccess
flags = FileAccess.Read | FileAccess.Write
ob = FlagsConstructorTest(flags)
assert ob.value == flags
def test_struct_constructor():
"""Test struct constructor args"""
from System import Guid
from Python.Test import StructConstructorTest
guid = Guid.NewGuid()
ob = StructConstructorTest(guid)
assert ob.value == guid
def test_datetime():
inst = System.DateTime(2021, 12, 29)
assert inst.Year == 2021
def test_subclass_constructor():
"""Test subclass constructor args"""
from Python.Test import SubclassConstructorTest
class Sub(System.Exception):
pass
instance = Sub()
ob = SubclassConstructorTest(instance)
assert isinstance(ob.value, System.Exception)
def test_multiple_constructor():
from Python.Test import MultipleConstructorsTest
# Test parameterless
ob = MultipleConstructorsTest()
assert ob.value == ""
def test_default_constructor_fallback():
from Python.Test import DefaultConstructorMatching
ob = DefaultConstructorMatching(2)
assert ob.a == 2
with pytest.raises(TypeError):
ob = DefaultConstructorMatching("2")
def test_constructor_leak():
from System import Uri
from Python.Runtime import Runtime
uri = Uri("http://www.python.org")
Runtime.TryCollectingGarbage(20)
ref_count = sys.getrefcount(uri)
# check disabled due to GC uncertainty
# assert ref_count == 1
def test_string_constructor():
from System import String, Char, Array
ob = String('A', 10)
assert ob == 'A' * 10
arr = Array[Char](10)
for i in range(10):
arr[i] = Char(str(i))
ob = String(arr)
assert ob == "0123456789"
ob = String(arr, 5, 4)
assert ob == "5678"
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