105 lines
2.8 KiB
Go
105 lines
2.8 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package zpages
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import (
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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sdktrace "go.opentelemetry.io/otel/sdk/trace"
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"go.opentelemetry.io/otel/trace"
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)
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type testSpan struct {
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sdktrace.ReadWriteSpan
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spanContext trace.SpanContext
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name string
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startTime time.Time
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endTime time.Time
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status sdktrace.Status
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}
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func (ts *testSpan) SpanContext() trace.SpanContext {
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return ts.spanContext
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}
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func (ts *testSpan) Status() sdktrace.Status {
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return ts.status
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}
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func (ts *testSpan) Name() string {
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return ts.name
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}
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func (ts *testSpan) StartTime() time.Time {
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return ts.startTime
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}
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func (ts *testSpan) EndTime() time.Time {
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return ts.endTime
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}
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func TestBucket(t *testing.T) {
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bkt := newBucket(defaultBucketCapacity)
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assert.Equal(t, 0, bkt.len())
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for i := 1; i <= defaultBucketCapacity; i++ {
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bkt.add(&testSpan{endTime: time.Unix(int64(i), 0)})
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assert.Equal(t, i, bkt.len())
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spans := bkt.spans()
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assert.Len(t, spans, i)
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for j := 0; j < i; j++ {
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assert.Equal(t, time.Unix(int64(j+1), 0), spans[j].EndTime())
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}
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}
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for i := defaultBucketCapacity + 1; i <= 2*defaultBucketCapacity; i++ {
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bkt.add(&testSpan{endTime: time.Unix(int64(i), 0)})
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assert.Equal(t, defaultBucketCapacity, bkt.len())
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spans := bkt.spans()
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assert.Len(t, spans, defaultBucketCapacity)
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// First spans will have newer times, and will replace older timestamps.
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for j := 0; j < i-defaultBucketCapacity; j++ {
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assert.Equal(t, time.Unix(int64(j+defaultBucketCapacity+1), 0), spans[j].EndTime())
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}
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for j := i - defaultBucketCapacity; j < defaultBucketCapacity; j++ {
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assert.Equal(t, time.Unix(int64(j+1), 0), spans[j].EndTime())
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}
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}
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}
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func TestBucketAddSample(t *testing.T) {
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bkt := newBucket(defaultBucketCapacity)
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assert.Equal(t, 0, bkt.len())
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for i := 0; i < 1000; i++ {
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bkt.add(&testSpan{endTime: time.Unix(1, int64(i*1000))})
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assert.Equal(t, 1, bkt.len())
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spans := bkt.spans()
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assert.Len(t, spans, 1)
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assert.Equal(t, time.Unix(1, 0), spans[0].EndTime())
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}
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}
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func TestBucketZeroCapacity(t *testing.T) {
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bkt := newBucket(0)
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assert.Equal(t, 0, bkt.len())
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bkt.add(&testSpan{endTime: time.Unix(1, 0)})
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assert.Equal(t, 0, bkt.len())
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assert.Len(t, bkt.spans(), 0)
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}
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