forked from ooyala/go-dogstatsd
/
dogstatsd_test.go
159 lines (143 loc) · 4.6 KB
/
dogstatsd_test.go
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// Copyright 2013 Ooyala, Inc.
package dogstatsd
import (
"bytes"
"fmt"
"net"
"reflect"
"testing"
"time"
)
var dogstatsdTests = []struct {
GlobalNamespace string
GlobalTags []string
Method string
Metric string
Value interface{}
Tags []string
Rate float64
Expected string
}{
{"", nil, "Gauge", "test.gauge", 1.0, nil, 1.0, "test.gauge:1.000000|g"},
{"", nil, "Gauge", "test.gauge", 1.0, nil, 0.999999, "test.gauge:1.000000|g|@0.999999"},
{"", nil, "Gauge", "test.gauge", 1.0, []string{"tagA"}, 1.0, "test.gauge:1.000000|g|#tagA"},
{"", nil, "Gauge", "test.gauge", 1.0, []string{"tagA", "tagB"}, 1.0, "test.gauge:1.000000|g|#tagA,tagB"},
{"", nil, "Gauge", "test.gauge", 1.0, []string{"tagA"}, 0.999999, "test.gauge:1.000000|g|@0.999999|#tagA"},
{"", nil, "Count", "test.count", int64(1), []string{"tagA"}, 1.0, "test.count:1|c|#tagA"},
{"", nil, "Count", "test.count", int64(-1), []string{"tagA"}, 1.0, "test.count:-1|c|#tagA"},
{"", nil, "Histogram", "test.histogram", 2.3, []string{"tagA"}, 1.0, "test.histogram:2.300000|h|#tagA"},
{"", nil, "Set", "test.set", "uuid", []string{"tagA"}, 1.0, "test.set:uuid|s|#tagA"},
{"flubber.", nil, "Set", "test.set", "uuid", []string{"tagA"}, 1.0, "flubber.test.set:uuid|s|#tagA"},
{"", []string{"tagC"}, "Set", "test.set", "uuid", []string{"tagA"}, 1.0, "test.set:uuid|s|#tagC,tagA"},
}
func TestClient(t *testing.T) {
addr := "localhost:1201"
server := newServer(t, addr)
defer server.Close()
client := newClient(t, addr)
defer client.Close()
for _, tt := range dogstatsdTests {
client.Namespace = tt.GlobalNamespace
client.Tags = tt.GlobalTags
method := reflect.ValueOf(client).MethodByName(tt.Method)
e := method.Call([]reflect.Value{
reflect.ValueOf(tt.Metric),
reflect.ValueOf(tt.Value),
reflect.ValueOf(tt.Tags),
reflect.ValueOf(tt.Rate)})[0]
errInter := e.Interface()
if errInter != nil {
t.Fatal(errInter.(error))
}
message := serverRead(t, server)
if message != tt.Expected {
t.Errorf("Expected: %s. Actual: %s", tt.Expected, message)
}
}
}
type eventTest struct {
logEvent func(*Client) error
expected string
}
var eventTests = []eventTest{
eventTest{
logEvent: func(c *Client) error { return c.Warning("title", "text", []string{"tag1", "tag2"}) },
expected: "_e{5,4}:title|text|t:warning|s:flubber|#tag1,tag2",
},
eventTest{
logEvent: func(c *Client) error { return c.Error("Error!", "some error", []string{"tag3"}) },
expected: "_e{6,10}:Error!|some error|t:error|s:flubber|#tag3",
},
eventTest{
logEvent: func(c *Client) error { return c.Info("FYI", "note", []string{}) },
expected: "_e{3,4}:FYI|note|t:info|s:flubber",
},
eventTest{
logEvent: func(c *Client) error { return c.Success("Great News", "hurray", []string{"foo", "bar", "baz"}) },
expected: "_e{10,6}:Great News|hurray|t:success|s:flubber|#foo,bar,baz",
},
eventTest{
logEvent: func(c *Client) error {
eo := EventOpts{
DateHappened: time.Date(2014, time.September, 18, 22, 56, 0, 0, time.UTC),
Priority: Normal,
Host: "node.example.com",
AggregationKey: "foo",
SourceTypeName: "bar",
AlertType: Success,
}
return c.Event("custom title", "custom body", &eo)
},
expected: "_e{12,11}:custom title|custom body|t:success|s:bar|d:1411080960|p:normal|h:node.example.com|k:foo",
},
}
func TestEvent(t *testing.T) {
addr := "localhost:1201"
server := newServer(t, addr)
defer server.Close()
client := newClient(t, addr)
client.Namespace = "flubber."
for _, tt := range eventTests {
if err := tt.logEvent(client); err != nil {
t.Fatal(err)
}
message := serverRead(t, server)
if message != tt.expected {
t.Errorf("Expected: %s. Actual: %s", tt.expected, message)
}
}
var b bytes.Buffer
for i := 0; i < maxEventBytes+1; i++ {
fmt.Fprintf(&b, "a")
}
err := client.Error("too long", b.String(), []string{})
if err == nil || err.Error() != "Event 'too long' payload is too big (more that 8KB), event discarded" {
t.Errorf("Expected error due to exceeded event byte length")
}
}
func serverRead(t *testing.T, server *net.UDPConn) string {
bytes := make([]byte, 1024)
n, _, err := server.ReadFrom(bytes)
if err != nil {
t.Fatal(err)
}
return string(bytes[:n])
}
func newClient(t *testing.T, addr string) *Client {
client, err := New(addr)
if err != nil {
t.Fatal(err)
}
return client
}
func newServer(t *testing.T, addr string) *net.UDPConn {
udpAddr, err := net.ResolveUDPAddr("udp", addr)
if err != nil {
t.Fatal(err)
}
server, err := net.ListenUDP("udp", udpAddr)
if err != nil {
t.Fatal(err)
}
return server
}