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// SPDX-License-Identifier: GPL-3.0-or-later
package metrics
import (
"fmt"
"strconv"
"testing"
"github.com/stretchr/testify/assert"
)
func TestHyperLogLogUniqueCounter_Value(t *testing.T) {
for _, useHLL := range []bool{true, false} {
t.Run(fmt.Sprintf("HLL=%v", useHLL), func(t *testing.T) {
c := NewUniqueCounter(useHLL)
assert.Equal(t, 0, c.Value())
c.Insert("foo")
assert.Equal(t, 1, c.Value())
c.Insert("foo")
assert.Equal(t, 1, c.Value())
c.Insert("bar")
assert.Equal(t, 2, c.Value())
c.Insert("baz")
assert.Equal(t, 3, c.Value())
c.Reset()
assert.Equal(t, 0, c.Value())
c.Insert("foo")
assert.Equal(t, 1, c.Value())
})
}
}
func TestHyperLogLogUniqueCounter_WriteTo(t *testing.T) {
for _, useHLL := range []bool{true, false} {
t.Run(fmt.Sprintf("HLL=%v", useHLL), func(t *testing.T) {
c := NewUniqueCounterVec(useHLL)
c.Get("a").Insert("foo")
c.Get("a").Insert("bar")
c.Get("b").Insert("foo")
m := map[string]int64{}
c.WriteTo(m, "pi", 100, 1)
assert.Len(t, m, 2)
assert.EqualValues(t, 200, m["pi_a"])
assert.EqualValues(t, 100, m["pi_b"])
})
}
}
func TestUniqueCounterVec_Reset(t *testing.T) {
for _, useHLL := range []bool{true, false} {
t.Run(fmt.Sprintf("HLL=%v", useHLL), func(t *testing.T) {
c := NewUniqueCounterVec(useHLL)
c.Get("a").Insert("foo")
c.Get("a").Insert("bar")
c.Get("b").Insert("foo")
assert.Equal(t, 2, len(c.Items))
assert.Equal(t, 2, c.Get("a").Value())
assert.Equal(t, 1, c.Get("b").Value())
c.Reset()
assert.Equal(t, 2, len(c.Items))
assert.Equal(t, 0, c.Get("a").Value())
assert.Equal(t, 0, c.Get("b").Value())
})
}
}
func BenchmarkUniqueCounter_Insert(b *testing.B) {
benchmarks := []struct {
name string
same bool
hyperloglog bool
nop bool
}{
{"map-same", true, false, false},
{"hll-same", true, true, false},
{"nop", false, false, true},
{"map-diff", false, false, false},
{"hll-diff", false, true, false},
}
for _, bm := range benchmarks {
b.Run(bm.name, func(b *testing.B) {
c := NewUniqueCounter(bm.hyperloglog)
if bm.same {
for i := 0; i < b.N; i++ {
c.Insert("foo")
}
} else if bm.nop {
for i := 0; i < b.N; i++ {
strconv.Itoa(i)
}
} else {
for i := 0; i < b.N; i++ {
c.Insert(strconv.Itoa(i))
}
}
})
}
}
func BenchmarkUniqueCounterVec_Insert(b *testing.B) {
benchmarks := []struct {
name string
same bool
hyperloglog bool
nop bool
}{
{"map-same", true, false, false},
{"hll-same", true, true, false},
{"nop", false, false, true},
{"map-diff", false, false, false},
{"hll-diff", false, true, false},
}
for _, bm := range benchmarks {
b.Run(bm.name, func(b *testing.B) {
c := NewUniqueCounterVec(bm.hyperloglog)
if bm.same {
for i := 0; i < b.N; i++ {
c.Get("a").Insert("foo")
}
} else if bm.nop {
for i := 0; i < b.N; i++ {
strconv.Itoa(i)
}
} else {
for i := 0; i < b.N; i++ {
c.Get("a").Insert(strconv.Itoa(i))
}
}
})
}
}
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