pythonnet/src/tests/test_subclass.py at master · attackgithub/pythonnet · GitHub

Repository navigation

History

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

# -*- coding: utf-8 -*-

# FIXME: This test module randomly passes/fails even if all tests are skipped.

# Something fishy is going on with the Test fixtures. Behavior seen on CI on

# both Linux and Windows

# TODO: Remove delay of class creations. Adding SetUp/TearDown may help

"""Test sub-classing managed types"""

import System

import pytest

from Python.Test import (IInterfaceTest, SubClassTest, EventArgsTest,

FunctionsTest)

from System.Collections.Generic import List

from ._compat import range

def interface_test_class_fixture(subnamespace):

"""Delay creation of class until test starts."""

class InterfaceTestClass(IInterfaceTest):

"""class that implements the test interface"""

__namespace__ = "Python.Test." + subnamespace

def foo(self):

return "InterfaceTestClass"

def bar(self, x, i):

return "/".join([x] * i)

return InterfaceTestClass

def derived_class_fixture(subnamespace):

"""Delay creation of class until test starts."""

class DerivedClass(SubClassTest):

"""class that derives from a class deriving from IInterfaceTest"""

__namespace__ = "Python.Test." + subnamespace

def foo(self):

return "DerivedClass"

def base_foo(self):

return SubClassTest.foo(self)

def super_foo(self):

return super(DerivedClass, self).foo()

def bar(self, x, i):

return "_".join([x] * i)

def return_list(self):

l = List[str]()

l.Add("A")

l.Add("B")

l.Add("C")

return l

return DerivedClass

def derived_event_test_class_fixture(subnamespace):

"""Delay creation of class until test starts."""

class DerivedEventTest(IInterfaceTest):

"""class that implements IInterfaceTest.TestEvent"""

__namespace__ = "Python.Test." + subnamespace

def __init__(self):

self.event_handlers = []

# event handling

def add_TestEvent(self, handler):

self.event_handlers.append(handler)

def remove_TestEvent(self, handler):

self.event_handlers.remove(handler)

def OnTestEvent(self, value):

args = EventArgsTest(value)

for handler in self.event_handlers:

handler(self, args)

return DerivedEventTest

def test_base_class():

"""Test base class managed type"""

ob = SubClassTest()

assert ob.foo() == "foo"

assert FunctionsTest.test_foo(ob) == "foo"

assert ob.bar("bar", 2) == "bar"

assert FunctionsTest.test_bar(ob, "bar", 2) == "bar"

assert ob.not_overriden() == "not_overriden"

assert list(ob.return_list()) == ["a", "b", "c"]

assert list(SubClassTest.test_list(ob)) == ["a", "b", "c"]

def test_interface():

"""Test python classes can derive from C# interfaces"""

InterfaceTestClass = interface_test_class_fixture(test_interface.__name__)

ob = InterfaceTestClass()

assert ob.foo() == "InterfaceTestClass"

assert FunctionsTest.test_foo(ob) == "InterfaceTestClass"

assert ob.bar("bar", 2) == "bar/bar"

assert FunctionsTest.test_bar(ob, "bar", 2) == "bar/bar"

x = FunctionsTest.pass_through(ob)

assert id(x) == id(ob)

def test_derived_class():

"""Test python class derived from managed type"""

DerivedClass = derived_class_fixture(test_derived_class.__name__)

ob = DerivedClass()

assert ob.foo() == "DerivedClass"

assert ob.base_foo() == "foo"

assert ob.super_foo() == "foo"

assert FunctionsTest.test_foo(ob) == "DerivedClass"

assert ob.bar("bar", 2) == "bar_bar"

assert FunctionsTest.test_bar(ob, "bar", 2) == "bar_bar"

assert ob.not_overriden() == "not_overriden"

assert list(ob.return_list()) == ["A", "B", "C"]

assert list(SubClassTest.test_list(ob)) == ["A", "B", "C"]

x = FunctionsTest.pass_through(ob)

assert id(x) == id(ob)

def test_derived_traceback():

"""Test python exception traceback in class derived from managed base"""

class DerivedClass(SubClassTest):

__namespace__ = "Python.Test.traceback"

def foo(self):

print (xyzname)

return None

import sys,traceback

ob = DerivedClass()

# direct call

try:

ob.foo()

assert False

except:

e = sys.exc_info()

assert "xyzname" in str(e[1])

location = traceback.extract_tb(e[2])[-1]

assert location[2] == "foo"

# call through managed code

try:

FunctionsTest.test_foo(ob)

assert False

except:

e = sys.exc_info()

assert "xyzname" in str(e[1])

location = traceback.extract_tb(e[2])[-1]

assert location[2] == "foo"

def test_create_instance():

"""Test derived instances can be created from managed code"""

DerivedClass = derived_class_fixture(test_create_instance.__name__)

ob = FunctionsTest.create_instance(DerivedClass)

assert ob.foo() == "DerivedClass"

assert FunctionsTest.test_foo(ob) == "DerivedClass"

assert ob.bar("bar", 2) == "bar_bar"

assert FunctionsTest.test_bar(ob, "bar", 2) == "bar_bar"

assert ob.not_overriden() == "not_overriden"

x = FunctionsTest.pass_through(ob)

assert id(x) == id(ob)

InterfaceTestClass = interface_test_class_fixture(test_create_instance.__name__)

ob2 = FunctionsTest.create_instance(InterfaceTestClass)

assert ob2.foo() == "InterfaceTestClass"

assert FunctionsTest.test_foo(ob2) == "InterfaceTestClass"

assert ob2.bar("bar", 2) == "bar/bar"

assert FunctionsTest.test_bar(ob2, "bar", 2) == "bar/bar"

y = FunctionsTest.pass_through(ob2)

assert id(y) == id(ob2)

def test_events():

class EventHandler(object):

def handler(self, x, args):

self.value = args.value

event_handler = EventHandler()

x = SubClassTest()

x.TestEvent += event_handler.handler

assert FunctionsTest.test_event(x, 1) == 1

assert event_handler.value == 1

InterfaceTestClass = interface_test_class_fixture(test_events.__name__)

i = InterfaceTestClass()

with pytest.raises(System.NotImplementedException):

FunctionsTest.test_event(i, 2)

DerivedEventTest = derived_event_test_class_fixture(test_events.__name__)

d = DerivedEventTest()

d.add_TestEvent(event_handler.handler)

assert FunctionsTest.test_event(d, 3) == 3

assert event_handler.value == 3

assert len(d.event_handlers) == 1

def test_isinstance_check():

a = [str(x) for x in range(0, 1000)]

b = [System.String(x) for x in a]

for x in a:

assert not isinstance(x, System.Object)

assert not isinstance(x, System.String)

for x in b:

assert isinstance(x, System.Object)

assert isinstance(x, System.String)

def test_namespace_and_init():

calls = []

class TestX(System.Object):

__namespace__ = "test_clr_subclass_with_init_args"

def __init__(self, *args, **kwargs):

calls.append((args, kwargs))

t = TestX(1,2,3,foo="bar")

assert len(calls) == 1

assert calls[0][0] == (1,2,3)

assert calls[0][1] == {"foo":"bar"}

def test_namespace_and_argless_init():

calls = []

class TestX(System.Object):

__namespace__ = "test_clr_subclass_without_init_args"

def __init__(self):

calls.append(True)

t = TestX()

assert len(calls) == 1

assert calls[0] == True

def test_namespace_and_no_init():

class TestX(System.Object):

__namespace__ = "test_clr_subclass_without_init"

q = 1

t = TestX()

assert t.q == 1

def test_construction_from_clr():

import clr

calls = []

class TestX(System.Object):

__namespace__ = "test_clr_subclass_init_from_clr"

@clr.clrmethod(None, [int, str])

def __init__(self, i, s):

calls.append((i, s))

# Construct a TestX from Python

t = TestX(1, "foo")

assert len(calls) == 1

assert calls[0][0] == 1

assert calls[0][1] == "foo"

# Reset calls and construct a TestX from CLR

calls = []

tp = t.GetType()

t2 = tp.GetConstructors()[0].Invoke(None)

assert len(calls) == 0

# The object has only been constructed, now it needs to be initialized as well

tp.GetMethod("__init__").Invoke(t2, [1, "foo"])

assert len(calls) == 1

assert calls[0][0] == 1

assert calls[0][1] == "foo"

pythonnet/src/tests/test_subclass.py at master · attackgithub/pythonnet · GitHub

Repository navigation

Expand file tree

Breadcrumbs

test_subclass.py

Latest commit

History

Breadcrumbs

test_subclass.py

File metadata and controls