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parser_test.go
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parser_test.go
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package veneur
import (
"fmt"
"sort"
"testing"
"time"
"github.com/gogo/protobuf/proto"
"github.com/segmentio/fasthash/fnv1a"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/stripe/veneur/v14/protocol"
"github.com/stripe/veneur/v14/protocol/dogstatsd"
"github.com/stripe/veneur/v14/samplers"
"github.com/stripe/veneur/v14/ssf"
)
func freshSSFMetric() *ssf.SSFSample {
return &ssf.SSFSample{
Metric: 0,
Name: "test.ssf_metric",
Value: 5,
Message: "test_msg",
Status: 0,
SampleRate: 1,
Tags: map[string]string{
"tag1": "value1",
"tag2": "value2",
},
}
}
func TestValidMetric(t *testing.T) {
metric := freshSSFMetric()
parser := samplers.Parser{}
m, _ := parser.ParseMetricSSF(metric)
assert.True(t, samplers.ValidMetric(m))
metric.Name = ""
m, _ = parser.ParseMetricSSF(metric)
assert.False(t, samplers.ValidMetric(m))
metric.SampleRate = 0
m, _ = parser.ParseMetricSSF(metric)
assert.False(t, samplers.ValidMetric(m))
}
func TestValidTrace(t *testing.T) {
trace := &ssf.SSFSpan{}
assert.False(t, protocol.ValidTrace(trace))
trace.Id = 1
trace.TraceId = 1
trace.Name = "foo"
trace.StartTimestamp = 1
trace.EndTimestamp = 5
assert.True(t, protocol.ValidTrace(trace))
}
func TestParseSSFUnmarshal(t *testing.T) {
test := []byte{'0'}
sample, err := protocol.ParseSSF(test)
assert.Nil(t, sample)
assert.NotNil(t, err)
assert.Error(t, err)
}
func TestParseSSFEmpty(t *testing.T) {
trace := &ssf.SSFSpan{}
buff, err := proto.Marshal(trace)
assert.Nil(t, err)
_, err = protocol.ParseSSF(buff)
assert.NoError(t, err)
}
func TestParseSSFValidTraceInvalidMetric(t *testing.T) {
trace := &ssf.SSFSpan{}
trace.Id = 1
trace.TraceId = 1
trace.Name = "foo"
trace.StartTimestamp = 1
trace.EndTimestamp = 5
buff, err := proto.Marshal(trace)
assert.Nil(t, err)
span, err := protocol.ParseSSF(buff)
assert.Nil(t, err)
if assert.NotNil(t, span) {
assert.NoError(t, protocol.ValidateTrace(span))
assert.NotNil(t, span)
assert.NotNil(t, span.Tags)
metrics, err := (&samplers.Parser{}).ConvertMetrics(span)
assert.NoError(t, err)
assert.Empty(t, metrics)
}
}
func TestParseSSFInvalidTraceValidMetric(t *testing.T) {
metric := freshSSFMetric()
trace := &ssf.SSFSpan{}
trace.Tags = map[string]string{
"foo": "bar",
}
trace.Metrics = make([]*ssf.SSFSample, 0)
trace.Metrics = append(trace.Metrics, metric)
buff, err := proto.Marshal(trace)
assert.Nil(t, err)
span, err := protocol.ParseSSF(buff)
assert.NoError(t, err)
if assert.NotNil(t, span) {
metrics, err := (&samplers.Parser{}).ConvertMetrics(span)
assert.NoError(t, err)
if assert.Equal(t, 1, len(metrics)) {
m := metrics[0]
assert.Equal(t, metric.Name, m.Name, "Name")
assert.Equal(t, float64(metric.Value), m.Value, "Value")
assert.Equal(t, "counter", m.Type, "Type")
assert.NotContains(t, "foo:bar", m.Tags, "Should not pick up tag from parent span")
}
err = protocol.ValidateTrace(span)
_, isInvalid := err.(*protocol.InvalidTrace)
assert.True(t, isInvalid)
assert.NotNil(t, span)
}
}
func TestParseSSFValid(t *testing.T) {
metric := freshSSFMetric()
trace := &ssf.SSFSpan{}
trace.Id = 1
trace.TraceId = 1
trace.StartTimestamp = 1
trace.EndTimestamp = 5
trace.Tags = map[string]string{}
trace.Tags["foo"] = "bar"
trace.Metrics = make([]*ssf.SSFSample, 0)
trace.Metrics = append(trace.Metrics, metric)
buff, err := proto.Marshal(trace)
assert.Nil(t, err)
msg, err := protocol.ParseSSF(buff)
assert.NoError(t, err)
if assert.NotNil(t, msg) {
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
metrics, err := noTags.ConvertMetrics(msg)
assert.NoError(t, err)
if assert.Equal(t, 1, len(metrics)) {
m := metrics[0]
assert.Equal(t, metric.Name, m.Name, "Name")
assert.Equal(t, float64(metric.Value), m.Value, "Value")
assert.Equal(t, "counter", m.Type, "Type")
assert.NotContains(t, m.Tags, "foo", "Metric should not inherit tags from its parent span")
assert.NotContains(t, m.Tags, "implicit")
}
metrics, err = yesTags.ConvertMetrics(msg)
assert.NoError(t, err)
if assert.Equal(t, 1, len(metrics)) {
m := metrics[0]
assert.Equal(t, metric.Name, m.Name, "Name")
assert.Equal(t, float64(metric.Value), m.Value, "Value")
assert.Equal(t, "counter", m.Type, "Type")
assert.NotContains(t, m.Tags, "foo", "Metric should not inherit tags from its parent span")
assert.Contains(t, m.Tags, "implicit")
}
}
}
func TestParseSSFIndicatorSpan(t *testing.T) {
duration := 5 * time.Second
start := time.Now()
end := start.Add(duration)
span := &ssf.SSFSpan{}
span.Id = 1
span.TraceId = 5
span.Name = "foo"
span.StartTimestamp = start.UnixNano()
span.EndTimestamp = end.UnixNano()
span.Indicator = true
span.Service = "bar-srv"
span.Tags = map[string]string{
"this-tag": "definitely gets ignored",
"this-other-tag": "also gets dropped",
}
span.Metrics = make([]*ssf.SSFSample, 0)
buff, err := proto.Marshal(span)
assert.Nil(t, err)
inSpan, err := protocol.ParseSSF(buff)
assert.NoError(t, err)
require.NotNil(t, inSpan)
require.NoError(t, protocol.ValidateTrace(span))
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
metrics, err := noTags.ConvertIndicatorMetrics(inSpan, "timer_name", "")
assert.NoError(t, err)
if assert.Equal(t, 1, len(metrics)) {
m := metrics[0]
assert.Equal(t, "timer_name", m.Name)
assert.Equal(t, "histogram", m.Type)
assert.InEpsilon(t, float32(duration/time.Nanosecond), m.Value, 0.001)
if assert.Equal(t, 2, len(m.Tags)) {
var tags sort.StringSlice = m.Tags
sort.Sort(tags)
assert.Equal(t, sort.StringSlice{
"error:false",
fmt.Sprintf("service:%s", span.Service),
}, tags)
}
assert.NotContains(t, m.Tags, "implicit")
}
metrics, err = yesTags.ConvertIndicatorMetrics(inSpan, "timer_name", "")
assert.NoError(t, err)
if assert.Equal(t, 1, len(metrics)) {
m := metrics[0]
assert.Equal(t, "timer_name", m.Name)
assert.Equal(t, "histogram", m.Type)
assert.InEpsilon(t, float32(duration/time.Nanosecond), m.Value, 0.001)
if assert.Equal(t, 3, len(m.Tags)) {
var tags sort.StringSlice = m.Tags
sort.Sort(tags)
assert.Equal(t, sort.StringSlice{
"error:false",
"implicit",
fmt.Sprintf("service:%s", span.Service),
}, tags)
}
}
}
func TestParseSSFIndicatorSpanWithError(t *testing.T) {
duration := 5 * time.Second
start := time.Now()
end := start.Add(duration)
span := &ssf.SSFSpan{}
span.Id = 1
span.TraceId = 5
span.Name = "foo"
span.StartTimestamp = start.UnixNano()
span.EndTimestamp = end.UnixNano()
span.Indicator = true
span.Service = "bar-srv"
span.Tags = map[string]string{
"this-tag": "definitely gets ignored",
"this-other-tag": "also gets dropped",
}
span.Metrics = make([]*ssf.SSFSample, 0)
span.Error = true
buff, err := proto.Marshal(span)
assert.Nil(t, err)
inSpan, err := protocol.ParseSSF(buff)
assert.NoError(t, err)
require.NotNil(t, span)
require.NoError(t, protocol.ValidateTrace(span))
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
metrics, err := noTags.ConvertIndicatorMetrics(inSpan, "timer_name", "")
assert.NoError(t, err)
if assert.Equal(t, 1, len(metrics)) {
m := metrics[0]
assert.Equal(t, "timer_name", m.Name)
assert.Equal(t, "histogram", m.Type)
assert.InEpsilon(t, float32(duration/time.Nanosecond), m.Value, 0.001,
"Duration seems incorrect: %f vs. %d", m.Value, duration/time.Nanosecond)
if assert.Equal(t, 2, len(m.Tags)) {
var tags sort.StringSlice = m.Tags
sort.Sort(tags)
assert.Equal(t, sort.StringSlice{
"error:true",
fmt.Sprintf("service:%s", span.Service),
}, tags)
}
}
metrics, err = yesTags.ConvertIndicatorMetrics(inSpan, "timer_name", "")
assert.NoError(t, err)
if assert.Equal(t, 1, len(metrics)) {
m := metrics[0]
assert.Equal(t, "timer_name", m.Name)
assert.Equal(t, "histogram", m.Type)
assert.InEpsilon(t, float32(duration/time.Nanosecond), m.Value, 0.001,
"Duration seems incorrect: %f vs. %d", m.Value, duration/time.Nanosecond)
if assert.Equal(t, 3, len(m.Tags)) {
var tags sort.StringSlice = m.Tags
sort.Sort(tags)
assert.Equal(t, sort.StringSlice{
"error:true",
"implicit",
fmt.Sprintf("service:%s", span.Service),
}, tags)
}
}
}
func TestParseSSFIndicatorObjective(t *testing.T) {
duration := 5 * time.Second
start := time.Now()
end := start.Add(duration)
span := &ssf.SSFSpan{}
span.Id = 1
span.TraceId = 5
span.Name = "foo"
span.StartTimestamp = start.UnixNano()
span.EndTimestamp = end.UnixNano()
span.Indicator = true
span.Service = "bar-srv"
span.Tags = map[string]string{
"this-tag": "definitely gets ignored",
"this-other-tag": "also gets dropped",
}
span.Metrics = make([]*ssf.SSFSample, 0)
buff, err := proto.Marshal(span)
assert.Nil(t, err)
inSpan, err := protocol.ParseSSF(buff)
assert.NoError(t, err)
require.NotNil(t, inSpan)
require.NoError(t, protocol.ValidateTrace(span))
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
metrics, err := noTags.ConvertIndicatorMetrics(inSpan, "", "timer_name")
assert.NoError(t, err)
if assert.Equal(t, 1, len(metrics)) {
m := metrics[0]
assert.Equal(t, "timer_name", m.Name)
assert.Equal(t, "histogram", m.Type)
assert.InEpsilon(t, float32(duration/time.Nanosecond), m.Value, 0.001)
if assert.Equal(t, 3, len(m.Tags)) {
var tags sort.StringSlice = m.Tags
sort.Sort(tags)
assert.Equal(t, sort.StringSlice{
"error:false",
"objective:foo",
fmt.Sprintf("service:%s", span.Service),
}, tags)
}
}
metrics, err = yesTags.ConvertIndicatorMetrics(inSpan, "", "timer_name")
assert.NoError(t, err)
if assert.Equal(t, 1, len(metrics)) {
m := metrics[0]
assert.Equal(t, "timer_name", m.Name)
assert.Equal(t, "histogram", m.Type)
assert.InEpsilon(t, float32(duration/time.Nanosecond), m.Value, 0.001)
if assert.Equal(t, 4, len(m.Tags)) {
var tags sort.StringSlice = m.Tags
sort.Sort(tags)
assert.Equal(t, sort.StringSlice{
"error:false",
"implicit",
"objective:foo",
fmt.Sprintf("service:%s", span.Service),
}, tags)
}
}
}
func TestParseSSFIndicatorObjectiveTag(t *testing.T) {
duration := 5 * time.Second
start := time.Now()
end := start.Add(duration)
span := &ssf.SSFSpan{}
span.Id = 1
span.TraceId = 5
span.Name = "foo"
span.StartTimestamp = start.UnixNano()
span.EndTimestamp = end.UnixNano()
span.Indicator = true
span.Service = "bar-srv"
span.Tags = map[string]string{
"this-tag": "definitely gets ignored",
"this-other-tag": "also gets dropped",
"ssf_objective": "bar",
}
span.Metrics = make([]*ssf.SSFSample, 0)
buff, err := proto.Marshal(span)
assert.Nil(t, err)
inSpan, err := protocol.ParseSSF(buff)
assert.NoError(t, err)
require.NotNil(t, inSpan)
require.NoError(t, protocol.ValidateTrace(span))
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
metrics, err := noTags.ConvertIndicatorMetrics(inSpan, "", "timer_name")
assert.NoError(t, err)
if assert.Equal(t, 1, len(metrics)) {
m := metrics[0]
assert.Equal(t, "timer_name", m.Name)
assert.Equal(t, "histogram", m.Type)
assert.InEpsilon(t, float32(duration/time.Nanosecond), m.Value, 0.001)
if assert.Equal(t, 3, len(m.Tags)) {
var tags sort.StringSlice = m.Tags
sort.Sort(tags)
assert.Equal(t, sort.StringSlice{
"error:false",
"objective:bar",
fmt.Sprintf("service:%s", span.Service),
}, tags)
}
}
metrics, err = yesTags.ConvertIndicatorMetrics(inSpan, "", "timer_name")
assert.NoError(t, err)
if assert.Equal(t, 1, len(metrics)) {
m := metrics[0]
assert.Equal(t, "timer_name", m.Name)
assert.Equal(t, "histogram", m.Type)
assert.InEpsilon(t, float32(duration/time.Nanosecond), m.Value, 0.001)
if assert.Equal(t, 4, len(m.Tags)) {
var tags sort.StringSlice = m.Tags
sort.Sort(tags)
assert.Equal(t, sort.StringSlice{
"error:false",
"implicit",
"objective:bar",
fmt.Sprintf("service:%s", span.Service),
}, tags)
}
}
}
func TestParseSSFIndicatorSpanNotNamed(t *testing.T) {
duration := 5 * time.Second
start := time.Now()
end := start.Add(duration)
span := &ssf.SSFSpan{}
span.Id = 1
span.TraceId = 5
span.Name = "foo"
span.StartTimestamp = start.UnixNano()
span.EndTimestamp = end.UnixNano()
span.Indicator = true
span.Service = "bar-srv"
span.Tags = map[string]string{
"this-tag": "definitely gets ignored",
"this-other-tag": "also gets dropped",
}
span.Metrics = make([]*ssf.SSFSample, 0)
buff, err := proto.Marshal(span)
assert.Nil(t, err)
inSpan, err := protocol.ParseSSF(buff)
assert.NoError(t, err)
require.NotNil(t, inSpan)
require.NoError(t, protocol.ValidateTrace(inSpan))
metrics, err := (&samplers.Parser{}).ConvertIndicatorMetrics(inSpan, "", "")
assert.NoError(t, err)
assert.Equal(t, 0, len(metrics))
}
func TestParseSSFNonIndicatorSpan(t *testing.T) {
duration := 5 * time.Second
start := time.Now()
end := start.Add(duration)
span := &ssf.SSFSpan{}
span.Id = 1
span.TraceId = 5
span.Name = "no-timer"
span.StartTimestamp = start.UnixNano()
span.EndTimestamp = end.UnixNano()
span.Indicator = false
span.Service = "bar-srv"
span.Tags = map[string]string{
"this-tag": "definitely gets ignored",
"this-other-tag": "also gets dropped",
}
span.Metrics = make([]*ssf.SSFSample, 0)
buff, err := proto.Marshal(span)
assert.Nil(t, err)
inSpan, err := protocol.ParseSSF(buff)
require.NotNil(t, inSpan)
require.NoError(t, err)
require.NoError(t, protocol.ValidateTrace(inSpan))
metrics, err := (&samplers.Parser{}).ConvertIndicatorMetrics(inSpan, "timer_name", "objective_name")
assert.NoError(t, err)
assert.Equal(t, 0, len(metrics))
}
func TestParseSSFBadMetric(t *testing.T) {
metric := freshSSFMetric()
metric.Metric = 5
trace := &ssf.SSFSpan{}
trace.Metrics = make([]*ssf.SSFSample, 0)
trace.Metrics = append(trace.Metrics, metric)
buff, err := proto.Marshal(trace)
assert.Nil(t, err)
span, err := protocol.ParseSSF(buff)
assert.NoError(t, err)
if assert.NotNil(t, span) {
metrics, err := (&samplers.Parser{}).ConvertMetrics(span)
assert.Error(t, err)
assert.Equal(t, 0, len(metrics))
invalid, ok := err.(samplers.InvalidMetrics)
if assert.True(t, ok, "Error type incorrect: %v", err) {
assert.Equal(t, 1, len(invalid.Samples()))
}
}
}
func TestParserSSF(t *testing.T) {
standardMetric := freshSSFMetric()
m, _ := (&samplers.Parser{}).ParseMetricSSF(standardMetric)
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, standardMetric.Name, m.Name, "Name")
assert.Equal(t, float64(standardMetric.Value), m.Value, "Value")
assert.Equal(t, "counter", m.Type, "Type")
}
func TestParserSSFGauge(t *testing.T) {
standardMetric := freshSSFMetric()
standardMetric.Metric = ssf.SSFSample_GAUGE
m, _ := (&samplers.Parser{}).ParseMetricSSF(standardMetric)
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, standardMetric.Name, m.Name, "Name")
assert.Equal(t, float64(standardMetric.Value), m.Value, "Value")
assert.Equal(t, "gauge", m.Type, "Type")
}
func TestParserSSFSet(t *testing.T) {
standardMetric := freshSSFMetric()
standardMetric.Metric = ssf.SSFSample_SET
m, _ := (&samplers.Parser{}).ParseMetricSSF(standardMetric)
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, standardMetric.Name, m.Name, "Name")
assert.Equal(t, standardMetric.Message, m.Value, "Value")
assert.Equal(t, "set", m.Type, "Type")
}
func TestParserSSFWithTags(t *testing.T) {
standardMetric := freshSSFMetric()
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
m, _ := noTags.ParseMetricSSF(standardMetric)
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, standardMetric.Name, m.Name, "Name")
assert.Equal(t, float64(standardMetric.Value), m.Value, "Value")
assert.Equal(t, "counter", m.Type, "Type")
assert.Equal(t, 2, len(m.Tags), "# of Tags")
m, _ = yesTags.ParseMetricSSF(standardMetric)
assert.Equal(t, 3, len(m.Tags), "# of Tags")
}
func TestParserSSFWithSampleRate(t *testing.T) {
standardMetric := freshSSFMetric()
standardMetric.SampleRate = 0.1
m, _ := (&samplers.Parser{}).ParseMetricSSF(standardMetric)
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, standardMetric.Name, m.Name, "Name")
assert.Equal(t, float64(standardMetric.Value), m.Value, "Value")
assert.Equal(t, "counter", m.Type, "Type")
assert.Equal(t, float32(0.1), m.SampleRate, "Sample Rate")
}
func TestParserSSFWithSampleRateAndTags(t *testing.T) {
standardMetric := freshSSFMetric()
standardMetric.SampleRate = 0.1
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
m, _ := noTags.ParseMetricSSF(standardMetric)
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, standardMetric.Name, m.Name, "Name")
assert.Equal(t, float64(standardMetric.Value), m.Value, "Value")
assert.Equal(t, "counter", m.Type, "Type")
assert.Equal(t, float32(0.1), m.SampleRate, "Sample Rate")
assert.Len(t, m.Tags, 2, "Tags")
m, _ = yesTags.ParseMetricSSF(standardMetric)
assert.Len(t, m.Tags, 3, "Tags")
}
func TestParserSSFWithStatusCheck(t *testing.T) {
standardMetric := freshSSFMetric()
standardMetric.Metric = ssf.SSFSample_STATUS
standardMetric.Status = ssf.SSFSample_UNKNOWN
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
m, _ := noTags.ParseMetricSSF(standardMetric)
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, standardMetric.Name, m.Name, "Name")
assert.Equal(t, ssf.SSFSample_UNKNOWN, m.Value, "Value")
assert.Equal(t, "status", m.Type, "Type")
assert.Len(t, m.Tags, 2, "Tags")
m, _ = yesTags.ParseMetricSSF(standardMetric)
assert.Len(t, m.Tags, 3, "Tags")
}
func parseMetrics(t *testing.T, p *samplers.Parser, buf []byte) []*samplers.UDPMetric {
var metrics []*samplers.UDPMetric
err := p.ParseMetric(buf, func(m *samplers.UDPMetric) {
metrics = append(metrics, m)
})
require.NoError(t, err)
return metrics
}
func parseOneMetric(t *testing.T, p *samplers.Parser, buf []byte) *samplers.UDPMetric {
metrics := parseMetrics(t, p, buf)
require.Equal(t, 1, len(metrics))
return metrics[0]
}
func TestParser(t *testing.T) {
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
m := parseOneMetric(t, &noTags, []byte("a.b.c:1|c"))
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, "a.b.c", m.Name, "Name")
assert.Equal(t, float64(1), m.Value, "Value")
assert.Equal(t, "counter", m.Type, "Type")
assert.Equal(t, 0, len(m.Tags), "# of tags")
m = parseOneMetric(t, &yesTags, []byte("a.b.c:1|c"))
assert.Equal(t, 1, len(m.Tags), "# of tags")
}
func TestParserGauge(t *testing.T) {
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
m := parseOneMetric(t, &noTags, []byte("a.b.c:1|g"))
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, "a.b.c", m.Name, "Name")
assert.Equal(t, float64(1), m.Value, "Value")
assert.Equal(t, "gauge", m.Type, "Type")
assert.Equal(t, 0, len(m.Tags), "# of tags")
m = parseOneMetric(t, &yesTags, []byte("a.b.c:1|g"))
assert.Equal(t, 1, len(m.Tags), "# of tags")
}
func TestParserHistogram(t *testing.T) {
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
m := parseOneMetric(t, &noTags, []byte("a.b.c:1|h"))
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, "a.b.c", m.Name, "Name")
assert.Equal(t, float64(1), m.Value, "Value")
assert.Equal(t, "histogram", m.Type, "Type")
assert.Equal(t, 0, len(m.Tags), "# of tags")
m = parseOneMetric(t, &yesTags, []byte("a.b.c:1|h"))
assert.Equal(t, 1, len(m.Tags), "# of tags")
}
func TestParserHistogramFloat(t *testing.T) {
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
m := parseOneMetric(t, &noTags, []byte("a.b.c:1.234|h"))
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, "a.b.c", m.Name, "Name")
assert.Equal(t, float64(1.234), m.Value, "Value")
assert.Equal(t, "histogram", m.Type, "Type")
assert.Equal(t, 0, len(m.Tags), "# of tags")
m = parseOneMetric(t, &yesTags, []byte("a.b.c:1.234|h"))
assert.Equal(t, 1, len(m.Tags), "# of tags")
}
func TestParserTimer(t *testing.T) {
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
m := parseOneMetric(t, &noTags, []byte("a.b.c:1|ms"))
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, "a.b.c", m.Name, "Name")
assert.Equal(t, float64(1), m.Value, "Value")
assert.Equal(t, "timer", m.Type, "Type")
assert.Equal(t, 0, len(m.Tags), "# of tags")
m = parseOneMetric(t, &yesTags, []byte("a.b.c:1|ms"))
assert.Equal(t, 1, len(m.Tags), "# of tags")
}
func TestParserTimerAgg(t *testing.T) {
parser := samplers.NewParser([]string{})
ms := parseMetrics(t, &parser, []byte("a.b.c:1:2:3:4|ms|@0.1|#result:success,op:frob"))
assert.Equal(t, 4, len(ms))
expectedValues := []float64{1, 2, 3, 4}
for i, m := range ms {
assert.Equal(t, "a.b.c", m.Name, "Name for record %d", i)
assert.Equal(t, expectedValues[i], m.Value, "Value for record %d", i)
assert.Equal(t, "timer", m.Type, "Type for record %d", i)
assert.Equal(t, []string{"op:frob", "result:success"}, m.Tags, "Tags for record %d", i)
assert.Equal(t, "op:frob,result:success", m.JoinedTags, "JoinedTags for record %d", i)
assert.Equal(t, float32(0.1), m.SampleRate, "SampleRate for record %d", i)
// All records should have the same digest
assert.Equal(t, ms[0].Digest, m.Digest, "Digest for record %d", i)
assert.Equal(t, samplers.MixedScope, m.Scope, "Scope for record %d", i)
}
}
func TestParserDistribution(t *testing.T) {
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
m := parseOneMetric(t, &noTags, []byte("a.b.c:0.1716441474854946|d|#filter:flatulent"))
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, "a.b.c", m.Name, "Name")
assert.Equal(t, float64(0.1716441474854946), m.Value, "Value")
assert.Equal(t, "histogram", m.Type, "Type")
assert.Equal(t, 1, len(m.Tags), "# of tags")
m = parseOneMetric(t, &yesTags, []byte("a.b.c:0.1716441474854946|d|#filter:flatulent"))
assert.Equal(t, 2, len(m.Tags), "# of tags")
}
func TestParserTimerFloat(t *testing.T) {
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
m := parseOneMetric(t, &noTags, []byte("a.b.c:1.234|ms"))
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, "a.b.c", m.Name, "Name")
assert.Equal(t, float64(1.234), m.Value, "Value")
assert.Equal(t, "timer", m.Type, "Type")
assert.Equal(t, 0, len(m.Tags), "# of tags")
m = parseOneMetric(t, &yesTags, []byte("a.b.c:1.234|ms"))
assert.Equal(t, 1, len(m.Tags), "# of tags")
}
func TestParserSet(t *testing.T) {
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
m := parseOneMetric(t, &noTags, []byte("a.b.c:foo|s"))
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, "a.b.c", m.Name, "Name")
assert.Equal(t, "foo", m.Value, "Value")
assert.Equal(t, "set", m.Type, "Type")
assert.Equal(t, 0, len(m.Tags), "# of tags")
m = parseOneMetric(t, &yesTags, []byte("a.b.c:foo|s"))
assert.Equal(t, 1, len(m.Tags), "# of tags")
}
func TestParserWithTags(t *testing.T) {
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
m := parseOneMetric(t, &noTags, []byte("a.b.c:1|c|#foo:bar,baz:gorch"))
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, "a.b.c", m.Name, "Name")
assert.Equal(t, float64(1), m.Value, "Value")
assert.Equal(t, "counter", m.Type, "Type")
assert.EqualValues(t, []string{"baz:gorch", "foo:bar"}, m.Tags, "Expected Tags")
y := parseOneMetric(t, &yesTags, []byte("a.b.c:1|c|#foo:bar,baz:gorch"))
assert.EqualValues(t, []string{"baz:gorch", "foo:bar", "implicit"}, y.Tags, "Expected Tags")
// ensure that tag order doesn't matter: it must produce the same digest
m2 := parseOneMetric(t, &noTags, []byte("a.b.c:1|c|#baz:gorch,foo:bar"))
assert.EqualValues(t, []string{"baz:gorch", "foo:bar"}, m2.Tags, "Expected Tags")
assert.Equal(t, m.Digest, m2.Digest, "Digest must not depend on tag order")
assert.Equal(t, m.MetricKey, m2.MetricKey, "MetricKey must not depend on tag order")
y2 := parseOneMetric(t, &yesTags, []byte("a.b.c:1|c|#baz:gorch,foo:bar"))
assert.EqualValues(t, []string{"baz:gorch", "foo:bar", "implicit"}, y2.Tags, "Expected Tags")
assert.Equal(t, y.Digest, y2.Digest, "Digest must not depend on tag order")
assert.Equal(t, y.MetricKey, y2.MetricKey, "MetricKey must not depend on tag order")
// treated as an empty tag
m = parseOneMetric(t, &noTags, []byte("a.b.c:1|c|#"))
assert.EqualValues(t, []string{""}, m.Tags, "expected empty tag")
m = parseOneMetric(t, &yesTags, []byte("a.b.c:1|c|#"))
assert.EqualValues(t, []string{"", "implicit"}, m.Tags, "expected empty tag")
valueError := noTags.ParseMetric([]byte("a.b.c:fart|c"), nil)
assert.NotNil(t, valueError, "No errors when parsing")
assert.Contains(t, valueError.Error(), "Invalid number", "Invalid number error missing")
}
func TestParserWithSampleRate(t *testing.T) {
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
m := parseOneMetric(t, &noTags, []byte("a.b.c:1|c|@0.1"))
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, "a.b.c", m.Name, "Name")
assert.Equal(t, float64(1), m.Value, "Value")
assert.Equal(t, "counter", m.Type, "Type")
assert.Equal(t, float32(0.1), m.SampleRate, "Sample Rate")
assert.Equal(t, 0, len(m.Tags), "# of tags")
m = parseOneMetric(t, &yesTags, []byte("a.b.c:1|c|@0.1"))
assert.Equal(t, 1, len(m.Tags), "# of tags")
valueError := (&samplers.Parser{}).ParseMetric([]byte("a.b.c:fart|c"), nil)
assert.NotNil(t, valueError, "No errors when parsing")
assert.Contains(t, valueError.Error(), "Invalid number", "Invalid number error missing")
_ = parseOneMetric(t, &samplers.Parser{}, []byte("a.b.c:1|g|@0.1"))
}
func TestParserWithSampleRateAndTags(t *testing.T) {
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
m := parseOneMetric(t, &noTags, []byte("a.b.c:1|c|@0.1|#foo:bar,baz:gorch"))
assert.NotNil(t, m, "Got nil metric!")
assert.Equal(t, "a.b.c", m.Name, "Name")
assert.Equal(t, float64(1), m.Value, "Value")
assert.Equal(t, "counter", m.Type, "Type")
assert.Equal(t, float32(0.1), m.SampleRate, "Sample Rate")
assert.Len(t, m.Tags, 2, "Tags")
m = parseOneMetric(t, &yesTags, []byte("a.b.c:1|c|@0.1|#foo:bar,baz:gorch"))
assert.Len(t, m.Tags, 3, "Tags")
valueError := (&samplers.Parser{}).ParseMetric([]byte("a.b.c:fart|c"), nil)
assert.NotNil(t, valueError, "No errors when parsing")
assert.Contains(t, valueError.Error(), "Invalid number", "Invalid number error missing")
}
func TestInvalidPackets(t *testing.T) {
table := map[string]string{
"foo": "Invalid metric packet, need at least 1 pipe for type",
"foo:1": "1 pipe",
"foo:1||": "Invalid metric packet, metric type not specified",
"foo:|c|": "Invalid metric packet, empty string after/between pipes",
"this_is_a_bad_metric:nan|g|#shell": "Invalid number for metric value",
"this_is_a_bad_metric:NaN|g|#shell": "Invalid number for metric value",
"this_is_a_bad_metric:-inf|g|#shell": "Invalid number for metric value",
"this_is_a_bad_metric:+inf|g|#shell": "Invalid number for metric value",
"foo:1|foo|": "Invalid type",
"foo:1|c||": "Invalid metric packet, empty string after/between pipes",
"foo:1|c|foo": "unknown section",
"foo:1|c|@-0.1": ">0",
"foo:1|c|@1.1": "<=1",
"foo:1|c|@0.5|@0.2": "multiple sample rates",
"foo:1|c|#foo|#bar": "multiple tag sections",
}
for packet, errContent := range table {
t.Run(packet, func(t *testing.T) {
err := (&samplers.Parser{}).ParseMetric([]byte(packet), nil)
assert.Error(t, err, "Should have gotten error parsing %q", packet)
assert.Contains(t, err.Error(), errContent, "Error should have contained text")
})
}
}
func TestLocalOnlyEscape(t *testing.T) {
m := parseOneMetric(t, &samplers.Parser{}, []byte("a.b.c:1|h|#veneurlocalonly,tag2:quacks"))
assert.Equal(t, samplers.LocalOnly, m.Scope, "should have gotten local only metric")
assert.NotContains(t, m.Tags, "veneurlocalonly", "veneurlocalonly should not actually be a tag")
assert.Contains(t, m.Tags, "tag2:quacks", "tag2 should be preserved in the list of tags after removing magic tags")
}
func TestGlobalOnlyEscape(t *testing.T) {
m := parseOneMetric(t, &samplers.Parser{}, []byte("a.b.c:1|h|#veneurglobalonly,tag2:quacks"))
assert.Equal(t, samplers.GlobalOnly, m.Scope, "should have gotten local only metric")
assert.NotContains(t, m.Tags, "veneurglobalonly", "veneurlocalonly should not actually be a tag")
assert.Contains(t, m.Tags, "tag2:quacks", "tag2 should be preserved in the list of tags after removing magic tags")
}
func TestEvents(t *testing.T) {
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
evt, err := noTags.ParseEvent([]byte("_e{3,3}:foo|bar|k:foos|s:test|t:success|p:low|#foo:bar,baz:qux|d:1136239445|h:example.com"))
assert.NoError(t, err, "should have parsed correctly")
assert.EqualValues(t, &ssf.SSFSample{
Name: "foo",
Message: "bar",
Timestamp: 1136239445,
Tags: map[string]string{
dogstatsd.EventIdentifierKey: "",
dogstatsd.EventAggregationKeyTagKey: "foos",
dogstatsd.EventSourceTypeTagKey: "test",
dogstatsd.EventAlertTypeTagKey: "success",
dogstatsd.EventPriorityTagKey: "low",
dogstatsd.EventHostnameTagKey: "example.com",
"foo": "bar",
"baz": "qux",
},
}, evt, "should have parsed event")
evt, err = yesTags.ParseEvent([]byte("_e{3,3}:foo|bar|k:foos|s:test|t:success|p:low|#foo:bar,baz:qux|d:1136239445|h:example.com"))
assert.NoError(t, err, "should have parsed correctly")
assert.Equal(t, map[string]string{
dogstatsd.EventIdentifierKey: "",
dogstatsd.EventAggregationKeyTagKey: "foos",
dogstatsd.EventSourceTypeTagKey: "test",
dogstatsd.EventAlertTypeTagKey: "success",
dogstatsd.EventPriorityTagKey: "low",
dogstatsd.EventHostnameTagKey: "example.com",
"foo": "bar",
"baz": "qux",
"implicit": "",
}, evt.Tags)
table := map[string]string{
"_e{4,3}:foo|bar": "title length",
"_e{3,4}:foo|bar": "text length",
"_e{3,3}:foo|bar|d:abc": "date",
"_e{3,3}:foo|bar|p:baz": "priority",
"_e{3,3}:foo|bar|t:baz": "alert",
"_e{3,3}:foo|bar|t:info|t:info": "multiple alert",
"_e{3,3}:foo|bar||": "pipe",
"_e{3,0}:foo||": "text length",
"_e{3,3}:foo": "text",
"_e{3,3}": "colon",
}
for packet, errContent := range table {
_, err := (&samplers.Parser{}).ParseEvent([]byte(packet))
assert.NotNil(t, err, "Should have gotten error parsing %q", packet)
assert.Contains(t, err.Error(), errContent, "Error should have contained text")
}
}
func TestServiceChecks(t *testing.T) {
noTags := samplers.NewParser([]string{})
yesTags := samplers.NewParser([]string{"implicit"})
svcCheck, err := noTags.ParseServiceCheck([]byte("_sc|foo.bar|0|#foo:bar,qux:dor|d:1136239445|h:example.com"))
assert.NoError(t, err, "should have parsed correctly")
expected := &samplers.UDPMetric{
MetricKey: samplers.MetricKey{
Name: "foo.bar",
Type: "status",
JoinedTags: "foo:bar,qux:dor",
},
SampleRate: 1.0,
Value: ssf.SSFSample_OK,
Timestamp: 1136239445,
HostName: "example.com",
Tags: []string{
"foo:bar",
"qux:dor",
},
}
h := fnv1a.Init32
h = fnv1a.AddString32(h, expected.Name)
h = fnv1a.AddString32(h, expected.Type)
h = fnv1a.AddString32(h, expected.JoinedTags)
expected.Digest = h
assert.EqualValues(t, expected, svcCheck, "should have parsed event")
svcCheck, err = yesTags.ParseServiceCheck([]byte("_sc|foo.bar|0|#foo:bar,qux:dor|d:1136239445|h:example.com"))
assert.NoError(t, err, "should have parsed correctly")
expected = &samplers.UDPMetric{
MetricKey: samplers.MetricKey{
Name: "foo.bar",
Type: "status",
JoinedTags: "foo:bar,implicit,qux:dor",
},
SampleRate: 1.0,
Value: ssf.SSFSample_OK,
Timestamp: 1136239445,
HostName: "example.com",
Tags: []string{
"foo:bar",
"implicit",
"qux:dor",
},
}
h = fnv1a.Init32
h = fnv1a.AddString32(h, expected.Name)