1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package zpages
import (
"testing"
"time"
"github.com/stretchr/testify/assert"
sdktrace "go.opentelemetry.io/otel/sdk/trace"
"go.opentelemetry.io/otel/trace"
)
type testSpan struct {
sdktrace.ReadWriteSpan
spanContext trace.SpanContext
name string
startTime time.Time
endTime time.Time
status sdktrace.Status
}
func (ts *testSpan) SpanContext() trace.SpanContext {
return ts.spanContext
}
func (ts *testSpan) Status() sdktrace.Status {
return ts.status
}
func (ts *testSpan) Name() string {
return ts.name
}
func (ts *testSpan) StartTime() time.Time {
return ts.startTime
}
func (ts *testSpan) EndTime() time.Time {
return ts.endTime
}
func TestBucket(t *testing.T) {
bkt := newBucket(defaultBucketCapacity)
assert.Equal(t, 0, bkt.len())
for i := 1; i <= defaultBucketCapacity; i++ {
bkt.add(&testSpan{endTime: time.Unix(int64(i), 0)})
assert.Equal(t, i, bkt.len())
spans := bkt.spans()
assert.Len(t, spans, i)
for j := 0; j < i; j++ {
assert.Equal(t, time.Unix(int64(j+1), 0), spans[j].EndTime())
}
}
for i := defaultBucketCapacity + 1; i <= 2*defaultBucketCapacity; i++ {
bkt.add(&testSpan{endTime: time.Unix(int64(i), 0)})
assert.Equal(t, defaultBucketCapacity, bkt.len())
spans := bkt.spans()
assert.Len(t, spans, defaultBucketCapacity)
// First spans will have newer times, and will replace older timestamps.
for j := 0; j < i-defaultBucketCapacity; j++ {
assert.Equal(t, time.Unix(int64(j+defaultBucketCapacity+1), 0), spans[j].EndTime())
}
for j := i - defaultBucketCapacity; j < defaultBucketCapacity; j++ {
assert.Equal(t, time.Unix(int64(j+1), 0), spans[j].EndTime())
}
}
}
func TestBucketAddSample(t *testing.T) {
bkt := newBucket(defaultBucketCapacity)
assert.Equal(t, 0, bkt.len())
for i := 0; i < 1000; i++ {
bkt.add(&testSpan{endTime: time.Unix(1, int64(i*1000))})
assert.Equal(t, 1, bkt.len())
spans := bkt.spans()
assert.Len(t, spans, 1)
assert.Equal(t, time.Unix(1, 0), spans[0].EndTime())
}
}
func TestBucketZeroCapacity(t *testing.T) {
bkt := newBucket(0)
assert.Equal(t, 0, bkt.len())
bkt.add(&testSpan{endTime: time.Unix(1, 0)})
assert.Equal(t, 0, bkt.len())
assert.Empty(t, bkt.spans())
}
|
