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| author | Derrick Stolee <stolee@gmail.com> | 2018-11-01 16:46:17 +0300 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2018-11-02 06:14:21 +0300 |
| commit | aca4240f6a32423df5f95de6a9354b524fe57ec5 (patch) | |
| tree | 06a2b1efc6f6d9d0a66088e13965238bfb36e86b /t/t0009-prio-queue.sh | |
| parent | 2d3b1c576c85b7f5db1f418907af00ab88e0c303 (diff) | |
prio-queue: add 'peek' operation
When consuming a priority queue, it can be convenient to inspect
the next object that will be dequeued without actually dequeueing
it. Our existing library did not have such a 'peek' operation, so
add it as prio_queue_peek().
Add a reference-level comparison in t/helper/test-prio-queue.c
so this method is exercised by t0009-prio-queue.sh. Further, add
a test that checks the behavior when the compare function is NULL
(i.e. the queue becomes a stack).
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/t0009-prio-queue.sh')
| -rwxr-xr-x | t/t0009-prio-queue.sh | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/t/t0009-prio-queue.sh b/t/t0009-prio-queue.sh index e56dfce668..3941ad2528 100755 --- a/t/t0009-prio-queue.sh +++ b/t/t0009-prio-queue.sh @@ -47,4 +47,18 @@ test_expect_success 'notice empty queue' ' test_cmp expect actual ' +cat >expect <<'EOF' +3 +2 +6 +4 +5 +1 +8 +EOF +test_expect_success 'stack order' ' + test-tool prio-queue stack 8 1 5 4 6 2 3 dump >actual && + test_cmp expect actual +' + test_done |