pythonnet/tests/test_generic.py at v3.2.1 · pythonnet/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

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

378

379

380

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

414

415

416

417

418

419

420

421

422

423

424

425

426

427

428

429

430

431

432

433

434

435

436

437

438

439

440

441

442

443

444

445

446

447

448

449

450

451

452

453

454

455

456

457

458

459

460

461

462

463

464

465

466

467

468

469

470

471

472

473

474

475

476

477

478

479

480

481

482

483

484

485

486

487

488

489

490

491

492

493

494

495

496

497

498

499

500

501

502

503

504

505

506

507

508

509

510

511

512

513

514

515

516

517

518

519

520

521

522

523

524

525

526

527

528

529

530

531

532

533

534

535

536

537

538

539

540

541

542

543

544

545

546

547

548

549

550

551

552

553

554

555

556

557

558

559

560

561

562

563

564

565

566

567

568

569

570

571

572

573

574

575

576

577

578

579

580

581

582

583

584

585

586

587

588

589

590

591

592

593

594

595

596

597

598

599

600

601

602

603

604

605

606

607

608

609

610

611

612

613

614

615

616

617

618

619

620

621

622

623

624

625

626

627

628

629

630

631

632

633

634

635

636

637

638

639

640

641

642

643

644

645

646

647

648

649

650

651

652

653

654

655

656

657

658

659

660

661

662

663

664

665

666

667

668

669

670

671

672

673

674

675

676

677

678

679

680

681

682

683

684

685

686

687

688

689

690

691

692

693

694

695

696

697

698

699

700

701

702

703

704

705

706

707

708

709

710

711

712

713

714

715

716

717

718

719

720

721

722

723

724

725

726

727

728

729

730

731

732

733

734

735

736

737

738

739

740

741

742

743

744

745

746

747

748

749

750

751

752

753

754

755

756

757

758

759

760

761

762

763

764

765

766

767

768

769

770

771

772

773

774

775

776

777

778

779

780

781

782

783

784

785

786

787

788

789

790

791

792

793

794

795

796

797

798

799

800

801

802

803

804

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

"""Test CLR generics support."""

import clr

import System

import pytest

def assert_generic_wrapper_by_type(ptype, value):

"""Test Helper"""

from Python.Test import GenericWrapper

import System

inst = GenericWrapper[ptype](value)

assert inst.value == value

atype = System.Array[ptype]

items = atype([value, value, value])

inst = GenericWrapper[atype](items)

assert len(inst.value) == 3

assert inst.value[0] == value

assert inst.value[1] == value

def assert_generic_method_by_type(ptype, value, test_type=0):

"""Test Helper"""

from Python.Test import GenericMethodTest, GenericStaticMethodTest

import System

itype = GenericMethodTest[System.Type]

stype = GenericStaticMethodTest[System.Type]

# Explicit selection (static method)

result = stype.Overloaded[ptype](value)

if test_type:

assert result.__class__ == value.__class__

else:

assert result == value

# Type inference (static method)

result = stype.Overloaded(value)

assert result == value

if test_type:

assert result.__class__ == value.__class__

else:

assert result == value

# Explicit selection (instance method)

result = itype().Overloaded[ptype](value)

assert result == value

if test_type:

assert result.__class__ == value.__class__

else:

assert result == value

# Type inference (instance method)

result = itype().Overloaded(value)

assert result == value

if test_type:

assert result.__class__ == value.__class__

else:

assert result == value

atype = System.Array[ptype]

items = atype([value, value, value])

# Explicit selection (static method)

result = stype.Overloaded[atype](items)

if test_type:

assert len(result) == 3

assert result[0].__class__ == value.__class__

assert result[1].__class__ == value.__class__

else:

assert len(result) == 3

assert result[0] == value

assert result[1] == value

# Type inference (static method)

result = stype.Overloaded(items)

if test_type:

assert len(result) == 3

assert result[0].__class__ == value.__class__

assert result[1].__class__ == value.__class__

else:

assert len(result) == 3

assert result[0] == value

assert result[1] == value

# Explicit selection (instance method)

result = itype().Overloaded[atype](items)

if test_type:

assert len(result) == 3

assert result[0].__class__ == value.__class__

assert result[1].__class__ == value.__class__

else:

assert len(result) == 3

assert result[0] == value

assert result[1] == value

# Type inference (instance method)

result = itype().Overloaded(items)

if test_type:

assert len(result) == 3

assert result[0].__class__ == value.__class__

assert result[1].__class__ == value.__class__

else:

assert len(result) == 3

assert result[0] == value

assert result[1] == value

def test_python_type_aliasing():

"""Test python type alias support with generics."""

from System.Collections.Generic import Dictionary

dict_ = Dictionary[str, str]()

assert dict_.Count == 0

dict_.Add("one", "one")

assert dict_["one"] == "one"

dict_ = Dictionary[System.String, System.String]()

assert dict_.Count == 0

dict_.Add("one", "one")

assert dict_["one"] == "one"

dict_ = Dictionary[int, int]()

assert dict_.Count == 0

dict_.Add(1, 1)

assert dict_[1] == 1

dict_ = Dictionary[System.Int32, System.Int32]()

assert dict_.Count == 0

dict_.Add(1, 1)

assert dict_[1] == 1

dict_ = Dictionary[int, int]()

assert dict_.Count == 0

dict_.Add(1, 1)

assert dict_[1] == 1

dict_ = Dictionary[System.Int64, System.Int64]()

assert dict_.Count == 0

dict_.Add(1, 1)

assert dict_[1] == 1

dict_ = Dictionary[float, float]()

assert dict_.Count == 0

dict_.Add(1.5, 1.5)

assert dict_[1.5] == 1.5

dict_ = Dictionary[System.Double, System.Double]()

assert dict_.Count == 0

dict_.Add(1.5, 1.5)

assert dict_[1.5] == 1.5

dict_ = Dictionary[bool, bool]()

assert dict_.Count == 0

dict_.Add(True, False)

assert dict_[True] is False

dict_ = Dictionary[System.Boolean, System.Boolean]()

assert dict_.Count == 0

dict_.Add(True, False)

assert dict_[True] is False

def test_generic_reference_type():

"""Test usage of generic reference type definitions."""

from Python.Test import GenericTypeDefinition

inst = GenericTypeDefinition[System.String, System.Int32]("one", 2)

assert inst.value1 == "one"

assert inst.value2 == 2

def test_generic_value_type():

"""Test usage of generic value type definitions."""

from System import Int32

from Python.Test import GenericStructConstructorTest

ob = GenericStructConstructorTest[Int32](42)

assert ob.Value == 42

def test_nullable():

"""Test usage of Nullable[T] (special runtime handling)."""

inst = System.Nullable[System.Int32](10)

assert inst.HasValue

assert inst.Value == 10

with pytest.raises(TypeError):

inst = System.Nullable[System.Int32]()

def test_generic_interface():

# TODO NotImplemented

pass

def test_generic_delegate():

# TODO NotImplemented

pass

def test_open_generic_type():

"""Test behavior of reflected open constructed generic types."""

from Python.Test import DerivedFromOpenGeneric

open_generic_type = DerivedFromOpenGeneric.__bases__[0]

with pytest.raises(TypeError):

_ = open_generic_type()

with pytest.raises(TypeError):

_ = open_generic_type[System.String]

def test_derived_from_open_generic_type():

"""Test a generic type derived from an open generic type."""

from Python.Test import DerivedFromOpenGeneric

type_ = DerivedFromOpenGeneric[System.String, System.String]

inst = type_(1, 'two', 'three')

assert inst.value1 == 1

assert inst.value2 == 'two'

assert inst.value3 == 'three'

def test_generic_type_name_resolution():

"""Test the ability to disambiguate generic type names."""

from Python.Test import GenericNameTest1, GenericNameTest2

# If both a non-generic and generic type exist for a name, the

# unadorned name always resolves to the non-generic type.

_class = GenericNameTest1

assert _class().value == 0

assert _class.value == 0

# If no non-generic type exists for a name, the unadorned name

# cannot be instantiated. It can only be used to bind a generic.

with pytest.raises(TypeError):

_ = GenericNameTest2()

_class = GenericNameTest2[int]

assert _class().value == 1

assert _class.value == 1

_class = GenericNameTest2[int, int]

assert _class().value == 2

assert _class.value == 2

def test_generic_type_binding():

"""Test argument conversion / binding for generic methods."""

from Python.Test import InterfaceTest, ISayHello1, ShortEnum

import System

assert_generic_wrapper_by_type(System.Boolean, True)

assert_generic_wrapper_by_type(bool, True)

assert_generic_wrapper_by_type(System.Byte, 255)

assert_generic_wrapper_by_type(System.SByte, 127)

assert_generic_wrapper_by_type(System.Char, u'A')

assert_generic_wrapper_by_type(System.Int16, 32767)

assert_generic_wrapper_by_type(System.Int32, 2147483647)

assert_generic_wrapper_by_type(int, 2147483647)

assert_generic_wrapper_by_type(System.Int64, 9223372036854775807)

assert_generic_wrapper_by_type(System.UInt16, 65000)

assert_generic_wrapper_by_type(System.UInt32, 4294967295)

assert_generic_wrapper_by_type(System.UInt64, 18446744073709551615)

assert_generic_wrapper_by_type(System.Single, System.Single(3.402823e38))

assert_generic_wrapper_by_type(System.Double, 1.7976931348623157e308)

assert_generic_wrapper_by_type(float, 1.7976931348623157e308)

assert_generic_wrapper_by_type(System.Decimal, System.Decimal.One)

assert_generic_wrapper_by_type(System.String, "test")

assert_generic_wrapper_by_type(str, "test")

assert_generic_wrapper_by_type(ShortEnum, ShortEnum.Zero)

assert_generic_wrapper_by_type(System.Object, InterfaceTest())

assert_generic_wrapper_by_type(InterfaceTest, InterfaceTest())

assert_generic_wrapper_by_type(ISayHello1, InterfaceTest())

def test_generic_method_binding():

from Python.Test import GenericMethodTest, GenericStaticMethodTest

from System import InvalidOperationException

# Can invoke a static member on a closed generic type.

value = GenericStaticMethodTest[str].Overloaded()

assert value == 1

with pytest.raises(InvalidOperationException):

# Cannot invoke a static member on an open type.

GenericStaticMethodTest.Overloaded()

# Can invoke an instance member on a closed generic type.

value = GenericMethodTest[str]().Overloaded()

assert value == 1

with pytest.raises(TypeError):

# Cannot invoke an instance member on an open type,

# because the open type cannot be instantiated.

GenericMethodTest().Overloaded()

def test_generic_method_type_handling():

"""Test argument conversion / binding for generic methods."""

from Python.Test import InterfaceTest, ISayHello1, ShortEnum

import System

# FIXME: Fails because Converter.GetTypeByAlias returns int32 for any integer, including ulong

# assert_generic_method_by_type(System.UInt64, 18446744073709551615)

assert_generic_method_by_type(System.Boolean, True)

assert_generic_method_by_type(bool, True)

assert_generic_method_by_type(System.Byte, 255)

assert_generic_method_by_type(System.SByte, 127)

assert_generic_method_by_type(System.Char, u'A')

assert_generic_method_by_type(System.Int16, 32767)

assert_generic_method_by_type(System.Int32, 2147483647)

assert_generic_method_by_type(int, 2147483647)

assert_generic_method_by_type(System.UInt16, 65000)

assert_generic_method_by_type(System.Single, System.Single(3.402823e38))

assert_generic_method_by_type(System.Double, 1.7976931348623157e308)

assert_generic_method_by_type(float, 1.7976931348623157e308)

assert_generic_method_by_type(System.Decimal, System.Decimal.One)

assert_generic_method_by_type(System.String, "test")

assert_generic_method_by_type(str, "test")

assert_generic_method_by_type(ShortEnum, ShortEnum.Zero)

assert_generic_method_by_type(System.Object, InterfaceTest())

assert_generic_method_by_type(InterfaceTest, InterfaceTest(), 1)

def test_correct_overload_selection():

"""Test correct overloading selection for common types."""

from System import (String, Double, Single,

Int16, Int32, Int64)

from System import Math

substr = String("substring")

assert substr.Substring(2) == substr.Substring.__overloads__[Int32](

Int32(2))

assert substr.Substring(2, 3) == substr.Substring.__overloads__[Int32, Int32](

Int32(2), Int32(3))

for atype, value1, value2 in zip([Double, Single, Int16, Int32, Int64],

[1.0, 1.0, 1, 1, 1],

[2.0, 0.5, 2, 0, -1]):

assert Math.Abs(atype(value1)) == Math.Abs.__overloads__[atype](atype(value1))

assert Math.Abs(value1) == Math.Abs.__overloads__[atype](atype(value1))

assert Math.Max(atype(value1),

atype(value2)) == Math.Max.__overloads__[atype, atype](

atype(value1), atype(value2))

assert Math.Max(atype(value1),

value2) == Math.Max.__overloads__[atype, atype](

atype(value1), atype(value2))

clr.AddReference("System.Runtime.InteropServices")

from System.Runtime.InteropServices import GCHandle, GCHandleType

from System import Array, Byte

cs_array = Array.CreateInstance(Byte, 1000)

handler = GCHandle.Alloc(cs_array, GCHandleType.Pinned)

def test_generic_method_overload_selection():

"""Test explicit overload selection with generic methods."""

from Python.Test import GenericMethodTest, GenericStaticMethodTest

type = GenericStaticMethodTest[str]

inst = GenericMethodTest[str]()

# public static int Overloaded()

value = type.Overloaded()

assert value == 1

# public int Overloaded()

value = inst.Overloaded()

assert value == 1

# public static T Overloaded(T arg) (inferred)

value = type.Overloaded("test")

assert value == "test"

# public T Overloaded(T arg) (inferred)

value = inst.Overloaded("test")

assert value == "test"

# public static T Overloaded(T arg) (explicit)

value = type.Overloaded[str]("test")

assert value == "test"

# public T Overloaded(T arg) (explicit)

value = inst.Overloaded[str]("test")

assert value == "test"

# public static Q Overloaded<Q>(Q arg)

value = type.Overloaded[float](2.2)

assert value == 2.2

# public Q Overloaded<Q>(Q arg)

value = inst.Overloaded[float](2.2)

assert value == 2.2

# public static Q Overloaded<Q>(Q arg)

value = type.Overloaded[bool](True)

assert value is True

# public Q Overloaded<Q>(Q arg)

value = inst.Overloaded[bool](True)

assert value is True

# public static U Overloaded<Q, U>(Q arg1, U arg2)

value = type.Overloaded[bool, str](True, "true")

assert value == "true"

# public U Overloaded<Q, U>(Q arg1, U arg2)

value = inst.Overloaded[bool, str](True, "true")

assert value == "true"

# public static U Overloaded<Q, U>(Q arg1, U arg2)

value = type.Overloaded[str, bool]("true", True)

assert value is True

# public U Overloaded<Q, U>(Q arg1, U arg2)

value = inst.Overloaded[str, bool]("true", True)

assert value is True

# public static string Overloaded<T>(int arg1, int arg2, string arg3)

value = type.Overloaded[str](123, 456, "success")

assert value == "success"

# public string Overloaded<T>(int arg1, int arg2, string arg3)

value = inst.Overloaded[str](123, 456, "success")

assert value == "success"

with pytest.raises(TypeError):

_ = type.Overloaded[str, bool, int]("true", True, 1)

with pytest.raises(TypeError):

_ = inst.Overloaded[str, bool, int]("true", True, 1)

def test_method_overload_selection_with_generic_types():

"""Check method overload selection using generic types."""

from Python.Test import ISayHello1, InterfaceTest, ShortEnum

from Python.Test import MethodTest, GenericWrapper

inst = InterfaceTest()

vtype = GenericWrapper[System.Boolean]

input_ = vtype(True)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value is True

vtype = GenericWrapper[bool]

input_ = vtype(True)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value is True

vtype = GenericWrapper[System.Byte]

input_ = vtype(255)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == 255

vtype = GenericWrapper[System.SByte]

input_ = vtype(127)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == 127

vtype = GenericWrapper[System.Char]

input_ = vtype(u'A')

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == u'A'

vtype = GenericWrapper[System.Char]

input_ = vtype(65535)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == chr(65535)

vtype = GenericWrapper[System.Int16]

input_ = vtype(32767)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == 32767

vtype = GenericWrapper[System.Int32]

input_ = vtype(2147483647)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == 2147483647

vtype = GenericWrapper[int]

input_ = vtype(2147483647)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == 2147483647

vtype = GenericWrapper[System.Int64]

input_ = vtype(9223372036854775807)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == 9223372036854775807

vtype = GenericWrapper[System.UInt16]

input_ = vtype(65000)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == 65000

vtype = GenericWrapper[System.UInt32]

input_ = vtype(4294967295)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == 4294967295

vtype = GenericWrapper[System.UInt64]

input_ = vtype(18446744073709551615)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == 18446744073709551615

vtype = GenericWrapper[System.Single]

input_ = vtype(3.402823e38)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == System.Single(3.402823e38)

vtype = GenericWrapper[System.Double]

input_ = vtype(1.7976931348623157e308)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == 1.7976931348623157e308

vtype = GenericWrapper[float]

input_ = vtype(1.7976931348623157e308)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == 1.7976931348623157e308

vtype = GenericWrapper[System.Decimal]

input_ = vtype(System.Decimal.One)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == System.Decimal.One

vtype = GenericWrapper[System.String]

input_ = vtype("spam")

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == "spam"

vtype = GenericWrapper[str]

input_ = vtype("spam")

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == "spam"

vtype = GenericWrapper[ShortEnum]

input_ = vtype(ShortEnum.Zero)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value == ShortEnum.Zero

vtype = GenericWrapper[System.Object]

input_ = vtype(inst)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value.__class__ == inst.__class__

vtype = GenericWrapper[InterfaceTest]

input_ = vtype(inst)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value.__class__ == inst.__class__

iface_class = ISayHello1(inst).__class__

vtype = GenericWrapper[ISayHello1]

input_ = vtype(inst)

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value.value.__class__ == iface_class

vtype = System.Array[GenericWrapper[int]]

input_ = vtype([GenericWrapper[int](0), GenericWrapper[int](1)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == 0

assert value[1].value == 1

def test_overload_selection_with_arrays_of_generic_types():

"""Check overload selection using arrays of generic types."""

from Python.Test import ISayHello1, InterfaceTest, ShortEnum

from Python.Test import MethodTest, GenericWrapper

inst = InterfaceTest()

gtype = GenericWrapper[System.Boolean]

vtype = System.Array[gtype]

input_ = vtype([gtype(True), gtype(True)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value is True

assert value.Length == 2

gtype = GenericWrapper[bool]

vtype = System.Array[gtype]

input_ = vtype([gtype(True), gtype(True)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value is True

assert value.Length == 2

gtype = GenericWrapper[System.Byte]

vtype = System.Array[gtype]

input_ = vtype([gtype(255), gtype(255)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == 255

assert value.Length == 2

gtype = GenericWrapper[System.SByte]

vtype = System.Array[gtype]

input_ = vtype([gtype(127), gtype(127)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == 127

assert value.Length == 2

gtype = GenericWrapper[System.Char]

vtype = System.Array[gtype]

input_ = vtype([gtype(u'A'), gtype(u'A')])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == u'A'

assert value.Length == 2

gtype = GenericWrapper[System.Char]

vtype = System.Array[gtype]

input_ = vtype([gtype(65535), gtype(65535)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == chr(65535)

assert value.Length == 2

gtype = GenericWrapper[System.Int16]

vtype = System.Array[gtype]

input_ = vtype([gtype(32767), gtype(32767)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == 32767

assert value.Length == 2

gtype = GenericWrapper[System.Int32]

vtype = System.Array[gtype]

input_ = vtype([gtype(2147483647), gtype(2147483647)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == 2147483647

assert value.Length == 2

gtype = GenericWrapper[int]

vtype = System.Array[gtype]

input_ = vtype([gtype(2147483647), gtype(2147483647)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == 2147483647

assert value.Length == 2

gtype = GenericWrapper[System.Int64]

vtype = System.Array[gtype]

input_ = vtype([gtype(9223372036854775807),

gtype(9223372036854775807)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == 9223372036854775807

assert value.Length == 2

gtype = GenericWrapper[System.UInt16]

vtype = System.Array[gtype]

input_ = vtype([gtype(65000), gtype(65000)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == 65000

assert value.Length == 2

gtype = GenericWrapper[System.UInt32]

vtype = System.Array[gtype]

input_ = vtype([gtype(4294967295), gtype(4294967295)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == 4294967295

assert value.Length == 2

gtype = GenericWrapper[System.UInt64]

vtype = System.Array[gtype]

input_ = vtype([gtype(18446744073709551615),

gtype(18446744073709551615)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == 18446744073709551615

assert value.Length == 2

gtype = GenericWrapper[System.Single]

vtype = System.Array[gtype]

input_ = vtype([gtype(3.402823e38), gtype(3.402823e38)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == System.Single(3.402823e38)

assert value.Length == 2

gtype = GenericWrapper[System.Double]

vtype = System.Array[gtype]

input_ = vtype([gtype(1.7976931348623157e308),

gtype(1.7976931348623157e308)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == 1.7976931348623157e308

assert value.Length == 2

gtype = GenericWrapper[float]

vtype = System.Array[gtype]

input_ = vtype([gtype(1.7976931348623157e308),

gtype(1.7976931348623157e308)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == 1.7976931348623157e308

assert value.Length == 2

gtype = GenericWrapper[System.Decimal]

vtype = System.Array[gtype]

input_ = vtype([gtype(System.Decimal.One),

gtype(System.Decimal.One)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == System.Decimal.One

assert value.Length == 2

gtype = GenericWrapper[System.String]

vtype = System.Array[gtype]

input_ = vtype([gtype("spam"), gtype("spam")])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == "spam"

assert value.Length == 2

gtype = GenericWrapper[str]

vtype = System.Array[gtype]

input_ = vtype([gtype("spam"), gtype("spam")])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == "spam"

assert value.Length == 2

gtype = GenericWrapper[ShortEnum]

vtype = System.Array[gtype]

input_ = vtype([gtype(ShortEnum.Zero), gtype(ShortEnum.Zero)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value == ShortEnum.Zero

assert value.Length == 2

gtype = GenericWrapper[System.Object]

vtype = System.Array[gtype]

input_ = vtype([gtype(inst), gtype(inst)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value.__class__ == inst.__class__

assert value.Length == 2

gtype = GenericWrapper[InterfaceTest]

vtype = System.Array[gtype]

input_ = vtype([gtype(inst), gtype(inst)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value.__class__ == inst.__class__

assert value.Length == 2

iface_class = ISayHello1(inst).__class__

gtype = GenericWrapper[ISayHello1]

vtype = System.Array[gtype]

input_ = vtype([gtype(inst), gtype(inst)])

value = MethodTest.Overloaded.__overloads__[vtype](input_)

assert value[0].value.__class__ == iface_class

assert value.Length == 2

def test_generic_overload_selection_magic_name_only():

"""Test using only __overloads__ to select on type & sig"""

# TODO NotImplemented

pass

def test_nested_generic_class():

"""Check nested generic classes."""

# TODO NotImplemented

pass

def test_missing_generic_type():

from System.Collections import IList

with pytest.raises(TypeError):

IList[bool]

# https://github.com/pythonnet/pythonnet/issues/1522

def test_overload_generic_parameter():

from Python.Test import MethodTest, MethodTestSub

inst = MethodTest()

generic = MethodTestSub()

inst.OverloadedConstrainedGeneric(generic)

inst.OverloadedConstrainedGeneric[MethodTestSub](generic)

inst.OverloadedConstrainedGeneric[MethodTestSub](generic, '42')

inst.OverloadedConstrainedGeneric[MethodTestSub](generic, System.String('42'))

def test_invalid_generic_type_parameter():

from Python.Test import GenericTypeWithConstraint

with pytest.raises(TypeError):

GenericTypeWithConstraint[System.Object]

def test_invalid_generic_method_type_parameter():

from Python.Test import ConversionTest

with pytest.raises(TypeError):

ConversionTest.Echo[System.Object]

def test_generic_list_array_conversion():

"""Test conversion of lists to generic array arguments."""

from Python.Test import GenericArrayConversionTest

from Python.Test import Spam

items = []

for i in range(10):

items.append(Spam(str(i)))

result = GenericArrayConversionTest.EchoRange[Spam](items)

assert result[0].__class__ == Spam

assert len(result) == 10

# Currently raises an exception because the correct generic type parameter is not inferred

with pytest.raises(TypeError):

result = GenericArrayConversionTest.EchoRange(items)

assert result[0].__class__ == Spam

assert len(result) == 10

pythonnet/tests/test_generic.py at v3.2.1 · pythonnet/pythonnet · GitHub

Repository navigation

Expand file tree

Breadcrumbs

test_generic.py

Latest commit

History

Breadcrumbs

test_generic.py

File metadata and controls