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tsdb: Improve TestHistogramChunkAppendable and add new cases
Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>
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@ -261,11 +261,26 @@ func TestHistogramChunkAppendable(t *testing.T) {
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PositiveBuckets: []int64{6, -3, 0, -1, 2, 1, -4}, // counts: 6, 3, 3, 2, 4, 5, 1 (total 24)
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}
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app.AppendHistogram(ts, h1)
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app.AppendHistogram(ts, h1.Copy())
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require.Equal(t, 1, c.NumSamples())
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hApp, _ := app.(*HistogramAppender)
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{ // Schema change.
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h2 := h1.Copy()
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h2.Schema++
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_, _, ok, _ := hApp.Appendable(h2)
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require.False(t, ok)
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}
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{ // Zero threshold change.
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h2 := h1.Copy()
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h2.ZeroThreshold += 0.1
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_, _, ok, _ := hApp.Appendable(h2)
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require.False(t, ok)
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}
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{ // New histogram that has more buckets.
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h2 := h1
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h2 := h1.Copy()
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h2.PositiveSpans = []histogram.Span{
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{Offset: 0, Length: 3},
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{Offset: 1, Length: 1},
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@ -280,7 +295,6 @@ func TestHistogramChunkAppendable(t *testing.T) {
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// so the new histogram should have new counts >= these per-bucket counts, e.g.:
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h2.PositiveBuckets = []int64{7, -2, -4, 2, -2, -1, 2, 3, 0, -5, 1} // 7 5 1 3 1 0 2 5 5 0 1 (total 30)
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hApp, _ := app.(*HistogramAppender)
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posInterjections, negInterjections, ok, cr := hApp.Appendable(h2)
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require.Greater(t, len(posInterjections), 0)
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require.Equal(t, 0, len(negInterjections))
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@ -289,7 +303,7 @@ func TestHistogramChunkAppendable(t *testing.T) {
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}
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{ // New histogram that has a bucket missing.
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h2 := h1
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h2 := h1.Copy()
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h2.PositiveSpans = []histogram.Span{
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{Offset: 0, Length: 2},
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{Offset: 5, Length: 2},
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@ -299,7 +313,6 @@ func TestHistogramChunkAppendable(t *testing.T) {
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h2.Sum = 21
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h2.PositiveBuckets = []int64{6, -3, -1, 2, 1, -4} // counts: 6, 3, 2, 4, 5, 1 (total 21)
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hApp, _ := app.(*HistogramAppender)
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posInterjections, negInterjections, ok, cr := hApp.Appendable(h2)
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require.Equal(t, 0, len(posInterjections))
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require.Equal(t, 0, len(negInterjections))
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@ -308,11 +321,10 @@ func TestHistogramChunkAppendable(t *testing.T) {
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}
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{ // New histogram that has a counter reset while buckets are same.
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h2 := h1
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h2 := h1.Copy()
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h2.Sum = 23
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h2.PositiveBuckets = []int64{6, -4, 1, -1, 2, 1, -4} // counts: 6, 2, 3, 2, 4, 5, 1 (total 23)
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hApp, _ := app.(*HistogramAppender)
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posInterjections, negInterjections, ok, cr := hApp.Appendable(h2)
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require.Equal(t, 0, len(posInterjections))
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require.Equal(t, 0, len(negInterjections))
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@ -321,7 +333,7 @@ func TestHistogramChunkAppendable(t *testing.T) {
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}
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{ // New histogram that has a counter reset while new buckets were added.
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h2 := h1
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h2 := h1.Copy()
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h2.PositiveSpans = []histogram.Span{
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{Offset: 0, Length: 3},
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{Offset: 1, Length: 1},
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@ -334,7 +346,6 @@ func TestHistogramChunkAppendable(t *testing.T) {
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// so the new histogram should have new counts >= these per-bucket counts, e.g.:
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h2.PositiveBuckets = []int64{7, -2, -4, 2, -2, -1, 2, 3, 0, -5, 0} // 7 5 1 3 1 0 2 5 5 0 0 (total 29)
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hApp, _ := app.(*HistogramAppender)
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posInterjections, negInterjections, ok, cr := hApp.Appendable(h2)
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require.Equal(t, 0, len(posInterjections))
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require.Equal(t, 0, len(negInterjections))
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@ -347,7 +358,7 @@ func TestHistogramChunkAppendable(t *testing.T) {
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// added before the first bucket and reset on first bucket. (to
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// catch the edge case where the new bucket should be forwarded
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// ahead until first old bucket at start)
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h2 := h1
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h2 := h1.Copy()
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h2.PositiveSpans = []histogram.Span{
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{Offset: -3, Length: 2},
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{Offset: 1, Length: 2},
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@ -362,7 +373,6 @@ func TestHistogramChunkAppendable(t *testing.T) {
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// so the new histogram should have new counts >= these per-bucket counts, e.g.:
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h2.PositiveBuckets = []int64{1, 1, 3, -2, 0, -1, 2, 1, -4} // counts: 1, 2, 5, 3, 3, 2, 4, 5, 1 (total 26)
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hApp, _ := app.(*HistogramAppender)
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posInterjections, negInterjections, ok, cr := hApp.Appendable(h2)
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require.Equal(t, 0, len(posInterjections))
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require.Equal(t, 0, len(negInterjections))
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