| 434 | } |
| 435 | |
| 436 | void TPointerTest::TestCopyOnWritePtr1() { |
| 437 | using TPtr = TCowPtr<TSimpleSharedPtr<int>>; |
| 438 | TPtr p1; |
| 439 | UNIT_ASSERT(!p1.Shared()); |
| 440 | |
| 441 | p1.Reset(new int(123)); |
| 442 | UNIT_ASSERT(!p1.Shared()); |
| 443 | |
| 444 | { |
| 445 | TPtr pTmp = p1; |
| 446 | |
| 447 | UNIT_ASSERT(p1.Shared()); |
| 448 | UNIT_ASSERT(pTmp.Shared()); |
| 449 | UNIT_ASSERT_EQUAL(p1.Get(), pTmp.Get()); |
| 450 | } |
| 451 | |
| 452 | UNIT_ASSERT(!p1.Shared()); |
| 453 | |
| 454 | TPtr p2 = p1; |
| 455 | TPtr p3; |
| 456 | p3 = p2; |
| 457 | |
| 458 | UNIT_ASSERT(p2.Shared()); |
| 459 | UNIT_ASSERT(p3.Shared()); |
| 460 | UNIT_ASSERT_EQUAL(p1.Get(), p2.Get()); |
| 461 | UNIT_ASSERT_EQUAL(p1.Get(), p3.Get()); |
| 462 | |
| 463 | *(p1.Mutable()) = 456; |
| 464 | |
| 465 | UNIT_ASSERT(!p1.Shared()); |
| 466 | UNIT_ASSERT(p2.Shared()); |
| 467 | UNIT_ASSERT(p3.Shared()); |
| 468 | UNIT_ASSERT_EQUAL(*p1, 456); |
| 469 | UNIT_ASSERT_EQUAL(*p2, 123); |
| 470 | UNIT_ASSERT_EQUAL(*p3, 123); |
| 471 | UNIT_ASSERT_UNEQUAL(p1.Get(), p2.Get()); |
| 472 | UNIT_ASSERT_EQUAL(p2.Get(), p3.Get()); |
| 473 | |
| 474 | p2.Mutable(); |
| 475 | |
| 476 | UNIT_ASSERT(!p2.Shared()); |
| 477 | UNIT_ASSERT(!p3.Shared()); |
| 478 | UNIT_ASSERT_EQUAL(*p2, 123); |
| 479 | UNIT_ASSERT_EQUAL(*p3, 123); |
| 480 | UNIT_ASSERT_UNEQUAL(p2.Get(), p3.Get()); |
| 481 | } |
| 482 | |
| 483 | struct X: public TSimpleRefCount<X> { |
| 484 | inline X(int v = 0) |