testFieldList exercises set/get/append/truncate of values in a list.
(t testing.TB, m protoreflect.Message, fd protoreflect.FieldDescriptor)
| 445 | |
| 446 | // testFieldList exercises set/get/append/truncate of values in a list. |
| 447 | func testFieldList(t testing.TB, m protoreflect.Message, fd protoreflect.FieldDescriptor) { |
| 448 | name := fd.FullName() |
| 449 | num := fd.Number() |
| 450 | |
| 451 | m.Clear(fd) // start with an empty list |
| 452 | list := m.Get(fd).List() |
| 453 | if list.IsValid() { |
| 454 | t.Errorf("message.Get(%v).IsValid() = true, want false", name) |
| 455 | } |
| 456 | if !panics(func() { |
| 457 | m.Set(fd, protoreflect.ValueOfList(list)) |
| 458 | }) { |
| 459 | t.Errorf("message.Set(%v, <invalid>) does not panic", name) |
| 460 | } |
| 461 | if !panics(func() { |
| 462 | list.Append(newListElement(fd, list, 0, nil)) |
| 463 | }) { |
| 464 | t.Errorf("message.Get(%v).Append(...) of invalid list does not panic", name) |
| 465 | } |
| 466 | if got, want := list.NewElement(), newListElement(fd, list, 0, nil); !valueEqual(got, want) { |
| 467 | t.Errorf("message.Get(%v).NewElement() = %v, want %v", name, formatValue(got), formatValue(want)) |
| 468 | } |
| 469 | list = m.Mutable(fd).List() // mutable list |
| 470 | if !list.IsValid() { |
| 471 | t.Errorf("message.Get(%v).IsValid() = false, want true", name) |
| 472 | } |
| 473 | if got, want := list.NewElement(), newListElement(fd, list, 0, nil); !valueEqual(got, want) { |
| 474 | t.Errorf("message.Mutable(%v).NewElement() = %v, want %v", name, formatValue(got), formatValue(want)) |
| 475 | } |
| 476 | |
| 477 | // Append values. |
| 478 | var want protoreflect.List = &testList{} |
| 479 | for i, n := range []seed{1, 0, minVal, maxVal} { |
| 480 | if got, want := m.Has(fd), i > 0; got != want { |
| 481 | t.Errorf("after appending %d elements to %q:\nMessage.Has(%v) = %v, want %v", i, name, num, got, want) |
| 482 | } |
| 483 | v := newListElement(fd, list, n, nil) |
| 484 | want.Append(v) |
| 485 | list.Append(v) |
| 486 | |
| 487 | if got, want := m.Get(fd), protoreflect.ValueOfList(want); !valueEqual(got, want) { |
| 488 | t.Errorf("after appending %d elements to %q:\nMessage.Get(%v) = %v, want %v", i+1, name, num, formatValue(got), formatValue(want)) |
| 489 | } |
| 490 | } |
| 491 | |
| 492 | // Set values. |
| 493 | for i := 0; i < want.Len(); i++ { |
| 494 | v := newListElement(fd, list, seed(i+10), nil) |
| 495 | want.Set(i, v) |
| 496 | list.Set(i, v) |
| 497 | if got, want := m.Get(fd), protoreflect.ValueOfList(want); !valueEqual(got, want) { |
| 498 | t.Errorf("after setting element %d of %q:\nMessage.Get(%v) = %v, want %v", i, name, num, formatValue(got), formatValue(want)) |
| 499 | } |
| 500 | } |
| 501 | |
| 502 | // Truncate. |
| 503 | for want.Len() > 0 { |
| 504 | n := want.Len() - 1 |
no test coverage detected