| 10 | ) |
| 11 | |
| 12 | func TestQueue(t *testing.T) { |
| 13 | t.Parallel() |
| 14 | |
| 15 | t.Run("DropsFirst", func(t *testing.T) { |
| 16 | t.Parallel() |
| 17 | |
| 18 | q := cliutil.NewQueue[int](10) |
| 19 | require.Equal(t, 0, q.Len()) |
| 20 | |
| 21 | for i := 0; i < 20; i++ { |
| 22 | err := q.Push(i) |
| 23 | require.NoError(t, err) |
| 24 | if i < 10 { |
| 25 | require.Equal(t, i+1, q.Len()) |
| 26 | } else { |
| 27 | require.Equal(t, 10, q.Len()) |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | val, ok := q.Pop() |
| 32 | require.True(t, ok) |
| 33 | require.Equal(t, 10, val) |
| 34 | require.Equal(t, 9, q.Len()) |
| 35 | }) |
| 36 | |
| 37 | t.Run("Pop", func(t *testing.T) { |
| 38 | t.Parallel() |
| 39 | |
| 40 | q := cliutil.NewQueue[int](10) |
| 41 | for i := 0; i < 5; i++ { |
| 42 | err := q.Push(i) |
| 43 | require.NoError(t, err) |
| 44 | } |
| 45 | |
| 46 | // No blocking, should pop immediately. |
| 47 | for i := 0; i < 5; i++ { |
| 48 | val, ok := q.Pop() |
| 49 | require.True(t, ok) |
| 50 | require.Equal(t, i, val) |
| 51 | } |
| 52 | |
| 53 | // Pop should block until the next push. |
| 54 | go func() { |
| 55 | err := q.Push(55) |
| 56 | assert.NoError(t, err) |
| 57 | }() |
| 58 | |
| 59 | item, ok := q.Pop() |
| 60 | require.True(t, ok) |
| 61 | require.Equal(t, 55, item) |
| 62 | }) |
| 63 | |
| 64 | t.Run("Close", func(t *testing.T) { |
| 65 | t.Parallel() |
| 66 | |
| 67 | q := cliutil.NewQueue[int](10) |
| 68 | |
| 69 | done := make(chan bool) |