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storage: add AtT method to MemoizedSeriesIterator

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Signed-off-by: Charles Korn <charles.korn@grafana.com>
This commit is contained in:
Charles Korn 2024-07-15 14:09:02 +10:00
parent 52a73ec871
commit 2ca4d16236
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2 changed files with 11 additions and 4 deletions
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5
storage/memoized_iterator.go
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@ -136,6 +136,11 @@ func (b *MemoizedSeriesIterator) AtFloatHistogram() (int64, *histogram.FloatHist
return b.it.AtFloatHistogram(nil)
}
// AtT returns the timestamp of the current element of the iterator.
func (b *MemoizedSeriesIterator) AtT() int64 {
return b.it.AtT()
}
// Err returns the last encountered error.
func (b *MemoizedSeriesIterator) Err() error {
return b.it.Err()

10
storage/memoized_iterator_test.go
View file

@ -29,13 +29,15 @@ func TestMemoizedSeriesIterator(t *testing.T) {
sampleEq := func(ets int64, ev float64, efh *histogram.FloatHistogram) {
if efh == nil {
ts, v := it.At()
require.Equal(t, ets, ts, "timestamp mismatch")
require.Equal(t, ev, v, "value mismatch")
require.Equal(t, ets, ts, "At() timestamp mismatch")
require.Equal(t, ev, v, "At() value mismatch")
} else {
ts, fh := it.AtFloatHistogram()
require.Equal(t, ets, ts, "timestamp mismatch")
require.Equal(t, efh, fh, "histogram mismatch")
require.Equal(t, ets, ts, "AtFloatHistogram() timestamp mismatch")
require.Equal(t, efh, fh, "AtFloatHistogram() histogram mismatch")
}
require.Equal(t, ets, it.AtT(), "AtT() timestamp mismatch")
}
prevSampleEq := func(ets int64, ev float64, efh *histogram.FloatHistogram, eok bool) {
ts, v, fh, ok := it.PeekPrev()