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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package metric
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestAggregationErr(t *testing.T) {
t.Run("DropOperation", func(t *testing.T) {
assert.NoError(t, AggregationDrop{}.err())
})
t.Run("SumOperation", func(t *testing.T) {
assert.NoError(t, AggregationSum{}.err())
})
t.Run("LastValueOperation", func(t *testing.T) {
assert.NoError(t, AggregationLastValue{}.err())
})
t.Run("ExplicitBucketHistogramOperation", func(t *testing.T) {
assert.NoError(t, AggregationExplicitBucketHistogram{}.err())
assert.NoError(t, AggregationExplicitBucketHistogram{
Boundaries: []float64{0},
NoMinMax: true,
}.err())
assert.NoError(t, AggregationExplicitBucketHistogram{
Boundaries: []float64{0, 5, 10, 25, 50, 75, 100, 250, 500, 1000},
}.err())
})
t.Run("NonmonotonicHistogramBoundaries", func(t *testing.T) {
assert.ErrorIs(t, AggregationExplicitBucketHistogram{
Boundaries: []float64{2, 1},
}.err(), errAgg)
assert.ErrorIs(t, AggregationExplicitBucketHistogram{
Boundaries: []float64{0, 1, 2, 1, 3, 4},
}.err(), errAgg)
})
t.Run("ExponentialHistogramOperation", func(t *testing.T) {
assert.NoError(t, AggregationBase2ExponentialHistogram{
MaxSize: 160,
MaxScale: 20,
}.err())
assert.NoError(t, AggregationBase2ExponentialHistogram{
MaxSize: 1,
NoMinMax: true,
}.err())
assert.NoError(t, AggregationBase2ExponentialHistogram{
MaxSize: 1024,
MaxScale: -3,
}.err())
})
t.Run("InvalidExponentialHistogramOperation", func(t *testing.T) {
// MazSize must be greater than 0
assert.ErrorIs(t, AggregationBase2ExponentialHistogram{}.err(), errAgg)
// MaxScale Must be <=20
assert.ErrorIs(t, AggregationBase2ExponentialHistogram{
MaxSize: 1,
MaxScale: 30,
}.err(), errAgg)
})
}
func TestExplicitBucketHistogramDeepCopy(t *testing.T) {
const orig = 0.0
b := []float64{orig}
h := AggregationExplicitBucketHistogram{Boundaries: b}
cpH := h.copy().(AggregationExplicitBucketHistogram)
b[0] = orig + 1
assert.Equal(t, orig, cpH.Boundaries[0], "changing the underlying slice data should not affect the copy")
}
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