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04a05f161c
This is needed for preserving backwards compatibility with the previous releases of VictoriaMetrics. Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3203
56 lines
1.2 KiB
Go
56 lines
1.2 KiB
Go
package promql
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import (
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"testing"
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)
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func TestMemoryLimiter(t *testing.T) {
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var ml memoryLimiter
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ml.MaxSize = 100
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// Allocate memory
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if !ml.Get(10) {
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t.Fatalf("cannot get 10 out of %d bytes", ml.MaxSize)
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}
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if ml.usage != 10 {
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t.Fatalf("unexpected usage; got %d; want %d", ml.usage, 10)
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}
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if !ml.Get(20) {
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t.Fatalf("cannot get 20 out of 90 bytes")
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}
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if ml.usage != 30 {
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t.Fatalf("unexpected usage; got %d; want %d", ml.usage, 30)
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}
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if ml.Get(1000) {
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t.Fatalf("unexpected get for 1000 bytes")
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}
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if ml.usage != 30 {
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t.Fatalf("unexpected usage; got %d; want %d", ml.usage, 30)
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}
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if ml.Get(71) {
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t.Fatalf("unexpected get for 71 bytes")
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}
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if ml.usage != 30 {
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t.Fatalf("unexpected usage; got %d; want %d", ml.usage, 30)
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}
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if !ml.Get(70) {
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t.Fatalf("cannot get 70 bytes")
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}
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if ml.usage != 100 {
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t.Fatalf("unexpected usage; got %d; want %d", ml.usage, 100)
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}
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// Return memory back
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ml.Put(10)
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ml.Put(70)
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if ml.usage != 20 {
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t.Fatalf("unexpected usage; got %d; want %d", ml.usage, 20)
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}
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if !ml.Get(30) {
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t.Fatalf("cannot get 30 bytes")
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}
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ml.Put(50)
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if ml.usage != 0 {
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t.Fatalf("unexpected usage; got %d; want %d", ml.usage, 0)
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}
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}
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