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package metrics
import (
"testing"
"time"
"github.com/stretchr/testify/assert"
)
func TestNewDurationBuckets(t *testing.T) {
buckets := []time.Duration{
1 * time.Second,
3 * time.Second,
5 * time.Second,
}
bk := NewDurationBuckets(buckets...)
expect := durationBuckets{
buckets: []time.Duration{
1 * time.Second,
3 * time.Second,
5 * time.Second,
},
}
assert.Equal(t, expect, bk)
}
func Test_durationBuckets_MapDuration(t *testing.T) {
bk := NewDurationBuckets([]time.Duration{
1 * time.Second,
3 * time.Second,
5 * time.Second,
}...)
for i := 0; i <= bk.Size(); i++ {
assert.Equal(t, i, bk.MapDuration(time.Duration(i*2)*time.Second))
}
}
func Test_durationBuckets_Size(t *testing.T) {
var buckets []time.Duration
for i := 1; i < 3; i++ {
buckets = append(buckets, time.Duration(i)*time.Second)
bk := NewDurationBuckets(buckets...)
assert.Equal(t, i, bk.Size())
}
}
func Test_durationBuckets_UpperBound(t *testing.T) {
bk := NewDurationBuckets([]time.Duration{
1 * time.Second,
2 * time.Second,
3 * time.Second,
}...)
assert.Panics(t, func() { bk.UpperBound(999) })
for i := 0; i < bk.Size()-1; i++ {
assert.Equal(t, time.Duration(i+1)*time.Second, bk.UpperBound(i))
}
}
func TestNewBuckets(t *testing.T) {
bk := NewBuckets(1, 3, 5)
expect := buckets{
buckets: []float64{1, 3, 5},
}
assert.Equal(t, expect, bk)
}
func Test_buckets_MapValue(t *testing.T) {
bk := NewBuckets(1, 3, 5)
for i := 0; i <= bk.Size(); i++ {
assert.Equal(t, i, bk.MapValue(float64(i*2)))
}
}
func Test_buckets_Size(t *testing.T) {
var buckets []float64
for i := 1; i < 3; i++ {
buckets = append(buckets, float64(i))
bk := NewBuckets(buckets...)
assert.Equal(t, i, bk.Size())
}
}
func Test_buckets_UpperBound(t *testing.T) {
bk := NewBuckets(1, 2, 3)
assert.Panics(t, func() { bk.UpperBound(999) })
for i := 0; i < bk.Size()-1; i++ {
assert.Equal(t, float64(i+1), bk.UpperBound(i))
}
}
func TestMakeLinearBuckets_CorrectParameters_NotPanics(t *testing.T) {
assert.NotPanics(t, func() {
assert.Equal(t,
NewBuckets(0.0, 1.0, 2.0),
MakeLinearBuckets(0, 1, 3),
)
})
}
func TestMakeLinearBucketsPanicsOnBadCount(t *testing.T) {
assert.Panics(t, func() {
MakeLinearBuckets(0, 1, 0)
})
}
func TestMakeLinearDurationBuckets(t *testing.T) {
assert.NotPanics(t, func() {
assert.Equal(t,
NewDurationBuckets(0, time.Second, 2*time.Second),
MakeLinearDurationBuckets(0*time.Second, 1*time.Second, 3),
)
})
}
func TestMakeLinearDurationBucketsPanicsOnBadCount(t *testing.T) {
assert.Panics(t, func() {
MakeLinearDurationBuckets(0*time.Second, 1*time.Second, 0)
})
}
func TestMakeExponentialBuckets(t *testing.T) {
assert.NotPanics(t, func() {
assert.Equal(
t,
NewBuckets(2, 4, 8),
MakeExponentialBuckets(2, 2, 3),
)
})
}
func TestMakeExponentialBucketsPanicsOnBadCount(t *testing.T) {
assert.Panics(t, func() {
MakeExponentialBuckets(2, 2, 0)
})
}
func TestMakeExponentialBucketsPanicsOnBadStart(t *testing.T) {
assert.Panics(t, func() {
MakeExponentialBuckets(0, 2, 2)
})
}
func TestMakeExponentialBucketsPanicsOnBadFactor(t *testing.T) {
assert.Panics(t, func() {
MakeExponentialBuckets(2, 1, 2)
})
}
func TestMakeExponentialDurationBuckets(t *testing.T) {
assert.NotPanics(t, func() {
assert.Equal(
t,
NewDurationBuckets(2*time.Second, 4*time.Second, 8*time.Second),
MakeExponentialDurationBuckets(2*time.Second, 2, 3),
)
})
}
func TestMakeExponentialDurationBucketsPanicsOnBadCount(t *testing.T) {
assert.Panics(t, func() {
MakeExponentialDurationBuckets(2*time.Second, 2, 0)
})
}
func TestMakeExponentialDurationBucketsPanicsOnBadStart(t *testing.T) {
assert.Panics(t, func() {
MakeExponentialDurationBuckets(0, 2, 2)
})
}
func TestMakeExponentialDurationBucketsPanicsOnBadFactor(t *testing.T) {
assert.Panics(t, func() {
MakeExponentialDurationBuckets(2*time.Second, 1, 2)
})
}
|
