forked from raintank/statsdaemon
/
statsdaemon_test.go
292 lines (255 loc) · 8.94 KB
/
statsdaemon_test.go
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package main
import (
"bytes"
"github.com/bmizerany/assert"
"github.com/vimeo/statsdaemon/common"
"github.com/vimeo/statsdaemon/counter"
"github.com/vimeo/statsdaemon/timer"
"github.com/vimeo/statsdaemon/udp"
"math/rand"
"regexp"
"strconv"
"strings"
"testing"
"time"
)
var commonPercentiles = Percentiles{
&Percentile{
99,
"99",
},
}
var output = common.NullOutput()
func TestPacketParse(t *testing.T) {
d := []byte("gaugor:333|g")
packets := udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)
assert.Equal(t, len(packets), 1)
packet := packets[0]
assert.Equal(t, "gaugor", packet.Bucket)
assert.Equal(t, float64(333), packet.Value)
assert.Equal(t, "g", packet.Modifier)
assert.Equal(t, float32(1), packet.Sampling)
d = []byte("gorets:2|c|@0.1")
packets = udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)
assert.Equal(t, len(packets), 1)
packet = packets[0]
assert.Equal(t, "gorets", packet.Bucket)
assert.Equal(t, float64(2), packet.Value)
assert.Equal(t, "c", packet.Modifier)
assert.Equal(t, float32(0.1), packet.Sampling)
d = []byte("gorets:4|c")
packets = udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)
assert.Equal(t, len(packets), 1)
packet = packets[0]
assert.Equal(t, "gorets", packet.Bucket)
assert.Equal(t, float64(4), packet.Value)
assert.Equal(t, "c", packet.Modifier)
assert.Equal(t, float32(1), packet.Sampling)
d = []byte("gorets:-4|c")
packets = udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)
assert.Equal(t, len(packets), 1)
packet = packets[0]
assert.Equal(t, "gorets", packet.Bucket)
assert.Equal(t, float64(-4), packet.Value)
assert.Equal(t, "c", packet.Modifier)
assert.Equal(t, float32(1), packet.Sampling)
d = []byte("glork:320|ms")
packets = udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)
assert.Equal(t, len(packets), 1)
packet = packets[0]
assert.Equal(t, "glork", packet.Bucket)
assert.Equal(t, float64(320), packet.Value)
assert.Equal(t, "ms", packet.Modifier)
assert.Equal(t, float32(1), packet.Sampling)
d = []byte("a.key.with-0.dash:4|c")
packets = udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)
assert.Equal(t, len(packets), 1)
packet = packets[0]
assert.Equal(t, "a.key.with-0.dash", packet.Bucket)
assert.Equal(t, float64(4), packet.Value)
assert.Equal(t, "c", packet.Modifier)
assert.Equal(t, float32(1), packet.Sampling)
d = []byte("a.key.with-0.dash:4|c\ngauge:3|g")
packets = udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)
assert.Equal(t, len(packets), 2)
packet = packets[0]
assert.Equal(t, "a.key.with-0.dash", packet.Bucket)
assert.Equal(t, float64(4), packet.Value)
assert.Equal(t, "c", packet.Modifier)
assert.Equal(t, float32(1), packet.Sampling)
packet = packets[1]
assert.Equal(t, "gauge", packet.Bucket)
assert.Equal(t, float64(3), packet.Value)
assert.Equal(t, "g", packet.Modifier)
assert.Equal(t, float32(1), packet.Sampling)
errors_key := "target_type=count.type=invalid_line.unit=Err"
d = []byte("a.key.with-0.dash:4\ngauge3|g")
packets = udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)
assert.Equal(t, len(packets), 2)
assert.Equal(t, packets[0].Bucket, errors_key)
assert.Equal(t, packets[1].Bucket, errors_key)
d = []byte("a.key.with-0.dash:4")
packets = udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)
assert.Equal(t, len(packets), 1)
assert.Equal(t, packets[0].Bucket, errors_key)
}
func TestMean(t *testing.T) {
// Some data with expected mean of 20
d := []byte("response_time:0|ms\nresponse_time:30|ms\nresponse_time:30|ms")
packets := udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)
for _, p := range packets {
timer.Add(timers, p)
}
var buff bytes.Buffer
var num int64
num += processTimers(&buff, time.Now().Unix(), Percentiles{})
assert.Equal(t, num, int64(1))
dataForGraphite := buff.String()
pattern := `response_time\.mean 20\.[0-9]+ `
meanRegexp := regexp.MustCompile(pattern)
matched := meanRegexp.MatchString(dataForGraphite)
assert.Equal(t, matched, true)
}
func TestUpperPercentile(t *testing.T) {
// Some data with expected mean of 20
d := []byte("time:0|ms\ntime:1|ms\ntime:2|ms\ntime:3|ms")
packets := udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)
for _, p := range packets {
timer.Add(timers, p)
}
var buff bytes.Buffer
var num int64
num += processTimers(&buff, time.Now().Unix(), Percentiles{
&Percentile{
75,
"75",
},
})
assert.Equal(t, num, int64(1))
dataForGraphite := buff.String()
meanRegexp := regexp.MustCompile(`time\.upper_75 2\.`)
matched := meanRegexp.MatchString(dataForGraphite)
assert.Equal(t, matched, true)
}
func TestMetrics20Timer(t *testing.T) {
d := []byte("foo=bar.target_type=gauge.unit=ms:5|ms\nfoo=bar.target_type=gauge.unit=ms:10|ms")
packets := udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)
for _, p := range packets {
timer.Add(timers, p)
}
var buff bytes.Buffer
var num int64
num += processTimers(&buff, time.Now().Unix(), Percentiles{
&Percentile{
75,
"75",
},
})
dataForGraphite := buff.String()
assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=upper_75 10.000000"))
assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=mean_75 7.500000"))
assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=sum_75 15.000000"))
assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=mean 7.500000"))
assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=median 7.500000"))
assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=std 2.500000"))
assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=sum 15.000000"))
assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=upper 10.000000"))
assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=gauge.unit=ms.stat=lower 5.000000"))
assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=count.unit=Pckt.orig_unit=ms.pckt_type=sent.direction=in 2"))
assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=rate.unit=Pcktps.orig_unit=ms.pckt_type=sent.direction=in 0.200000"))
}
func TestMetrics20Count(t *testing.T) {
d := []byte("foo=bar.target_type=count.unit=B:5|c\nfoo=bar.target_type=count.unit=B:10|c")
packets := udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)
for _, p := range packets {
counter.Add(counters, p)
}
var buff bytes.Buffer
var num int64
num += processCounters(&buff, time.Now().Unix(), Percentiles{
&Percentile{
75,
"75",
},
})
dataForGraphite := buff.String()
assert.T(t, strings.Contains(dataForGraphite, "foo=bar.target_type=rate.unit=Bps 1.5"))
}
func TestLowerPercentile(t *testing.T) {
// Some data with expected mean of 20
d := []byte("time:0|ms\ntime:1|ms\ntime:2|ms\ntime:3|ms")
packets := udp.ParseMessage(d, prefix_internal, output, udp.ParseLine)
for _, p := range packets {
timer.Add(timers, p)
}
var buff bytes.Buffer
var num int64
num += processTimers(&buff, time.Now().Unix(), Percentiles{
&Percentile{
-75,
"-75",
},
})
assert.Equal(t, num, int64(1))
dataForGraphite := buff.String()
meanRegexp := regexp.MustCompile(`time\.upper_75 1\.`)
matched := meanRegexp.MatchString(dataForGraphite)
assert.Equal(t, matched, false)
meanRegexp = regexp.MustCompile(`time\.lower_75 1\.`)
matched = meanRegexp.MatchString(dataForGraphite)
assert.Equal(t, matched, true)
}
func BenchmarkManyDifferentSensors(t *testing.B) {
r := rand.New(rand.NewSource(438))
for i := 0; i < 1000; i++ {
bucket := "response_time" + strconv.Itoa(i)
for i := 0; i < 10000; i++ {
m := &common.Metric{bucket, r.Float64(), "ms", r.Float32(), 0}
timer.Add(timers, m)
}
}
for i := 0; i < 1000; i++ {
bucket := "count" + strconv.Itoa(i)
for i := 0; i < 10000; i++ {
a := r.Float64()
counters[bucket] = a
}
}
for i := 0; i < 1000; i++ {
bucket := "gauge" + strconv.Itoa(i)
for i := 0; i < 10000; i++ {
a := r.Float64()
gauges[bucket] = a
}
}
var buff bytes.Buffer
now := time.Now().Unix()
t.ResetTimer()
processTimers(&buff, now, commonPercentiles)
processCounters(&buff, now, commonPercentiles)
processGauges(&buff, now, commonPercentiles)
}
func BenchmarkOneBigTimer(t *testing.B) {
r := rand.New(rand.NewSource(438))
bucket := "response_time"
for i := 0; i < 10000000; i++ {
m := &common.Metric{bucket, r.Float64(), "ms", r.Float32(), 0}
timer.Add(timers, m)
}
var buff bytes.Buffer
t.ResetTimer()
processTimers(&buff, time.Now().Unix(), commonPercentiles)
}
func BenchmarkLotsOfTimers(t *testing.B) {
r := rand.New(rand.NewSource(438))
for i := 0; i < 1000; i++ {
bucket := "response_time" + strconv.Itoa(i)
for i := 0; i < 10000; i++ {
m := &common.Metric{bucket, r.Float64(), "ms", r.Float32(), 0}
timer.Add(timers, m)
}
}
var buff bytes.Buffer
t.ResetTimer()
processTimers(&buff, time.Now().Unix(), commonPercentiles)
}