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| author | Ondřej Surý <ondrej@sury.org> | 2011-09-13 12:00:31 +0200 |
|---|---|---|
| committer | Ondřej Surý <ondrej@sury.org> | 2011-09-13 12:00:31 +0200 |
| commit | 04f99b387021a8ce32a8795360cba9beaf986a81 (patch) | |
| tree | f806c632c5dec5bb83190946d6d8ff8bd33c0e57 /src/pkg/container/heap/heap_test.go | |
| parent | d9514677ddaa705852cbba5034cb6d284261b53a (diff) | |
| download | golang-04f99b387021a8ce32a8795360cba9beaf986a81.tar.gz | |
Imported Upstream version 2011.09.07upstream-weekly/2011.09.07
Diffstat (limited to 'src/pkg/container/heap/heap_test.go')
| -rw-r--r-- | src/pkg/container/heap/heap_test.go | 32 |
1 files changed, 23 insertions, 9 deletions
diff --git a/src/pkg/container/heap/heap_test.go b/src/pkg/container/heap/heap_test.go index c5c1f76e1..6625e3a2b 100644 --- a/src/pkg/container/heap/heap_test.go +++ b/src/pkg/container/heap/heap_test.go @@ -6,32 +6,46 @@ package heap_test import ( "testing" - "container/vector" . "container/heap" ) -type myHeap struct { - // A vector.Vector implements sort.Interface except for Less, - // and it implements Push and Pop as required for heap.Interface. - vector.Vector +type myHeap []int + +func (h *myHeap) Less(i, j int) bool { + return (*h)[i] < (*h)[j] +} + +func (h *myHeap) Swap(i, j int) { + (*h)[i], (*h)[j] = (*h)[j], (*h)[i] +} + +func (h *myHeap) Len() int { + return len(*h) +} + +func (h *myHeap) Pop() (v interface{}) { + *h, v = (*h)[:h.Len()-1], (*h)[h.Len()-1] + return } -func (h *myHeap) Less(i, j int) bool { return h.At(i).(int) < h.At(j).(int) } +func (h *myHeap) Push(v interface{}) { + *h = append(*h, v.(int)) +} -func (h *myHeap) verify(t *testing.T, i int) { +func (h myHeap) verify(t *testing.T, i int) { n := h.Len() j1 := 2*i + 1 j2 := 2*i + 2 if j1 < n { if h.Less(j1, i) { - t.Errorf("heap invariant invalidated [%d] = %d > [%d] = %d", i, h.At(i), j1, h.At(j1)) + t.Errorf("heap invariant invalidated [%d] = %d > [%d] = %d", i, h[i], j1, h[j1]) return } h.verify(t, j1) } if j2 < n { if h.Less(j2, i) { - t.Errorf("heap invariant invalidated [%d] = %d > [%d] = %d", i, h.At(i), j1, h.At(j2)) + t.Errorf("heap invariant invalidated [%d] = %d > [%d] = %d", i, h[i], j1, h[j2]) return } h.verify(t, j2) |
