telegraf/plugins/outputs/riemann/riemann_test.go

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package riemann
import (
"fmt"
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"testing"
"time"
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"github.com/amir/raidman"
"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/testutil"
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"github.com/stretchr/testify/require"
)
func TestAttributes(t *testing.T) {
tags := map[string]string{"tag1": "value1", "tag2": "value2"}
r := &Riemann{}
require.Equal(t,
map[string]string{"tag1": "value1", "tag2": "value2"},
r.attributes("test", tags))
// enable measurement as attribute, should now be included
r.MeasurementAsAttribute = true
require.Equal(t,
map[string]string{"tag1": "value1", "tag2": "value2", "measurement": "test"},
r.attributes("test", tags))
}
func TestService(t *testing.T) {
r := &Riemann{
Separator: "/",
}
require.Equal(t, "test/value", r.service("test", "value"))
// enable measurement as attribute, should not be part of service name anymore
r.MeasurementAsAttribute = true
require.Equal(t, "value", r.service("test", "value"))
}
func TestTags(t *testing.T) {
tags := map[string]string{"tag1": "value1", "tag2": "value2"}
// all tag values plus additional tag should be present
r := &Riemann{
Tags: []string{"test"},
}
require.Equal(t,
[]string{"test", "value1", "value2"},
r.tags(tags))
// only tag2 value plus additional tag should be present
r.TagKeys = []string{"tag2"}
require.Equal(t,
[]string{"test", "value2"},
r.tags(tags))
// only tag1 value should be present
r.Tags = nil
r.TagKeys = []string{"tag1"}
require.Equal(t,
[]string{"value1"},
r.tags(tags))
}
func TestMetricEvents(t *testing.T) {
r := &Riemann{
TTL: 20.0,
Separator: "/",
MeasurementAsAttribute: false,
DescriptionText: "metrics from telegraf",
Tags: []string{"telegraf"},
}
// build a single event
metric, _ := telegraf.NewMetric(
"test1",
map[string]string{"tag1": "value1", "host": "abc123"},
map[string]interface{}{"value": 5.6},
time.Date(2009, time.November, 10, 23, 0, 0, 0, time.UTC),
)
events := r.buildRiemannEvents(metric)
require.Len(t, events, 1)
// is event as expected?
expectedEvent := &raidman.Event{
Ttl: 20.0,
Time: 1257894000,
Tags: []string{"telegraf", "value1"},
Host: "abc123",
State: "",
Service: "test1/value",
Metric: 5.6,
Description: "metrics from telegraf",
Attributes: map[string]string{"tag1": "value1"},
}
require.Equal(t, expectedEvent, events[0])
// build 2 events
metric, _ = telegraf.NewMetric(
"test2",
map[string]string{"host": "xyz987"},
map[string]interface{}{"point": 1},
time.Date(2012, time.November, 2, 3, 0, 0, 0, time.UTC),
)
events = append(events, r.buildRiemannEvents(metric)...)
require.Len(t, events, 2)
// first event should still be the same
require.Equal(t, expectedEvent, events[0])
// second event
expectedEvent = &raidman.Event{
Ttl: 20.0,
Time: 1351825200,
Tags: []string{"telegraf"},
Host: "xyz987",
State: "",
Service: "test2/point",
Metric: int64(1),
Description: "metrics from telegraf",
Attributes: map[string]string{},
}
require.Equal(t, expectedEvent, events[1])
}
func TestStateEvents(t *testing.T) {
r := &Riemann{
MeasurementAsAttribute: true,
}
// string metrics will be skipped unless explicitly enabled
metric, _ := telegraf.NewMetric(
"test",
map[string]string{"host": "host"},
map[string]interface{}{"value": "running"},
time.Date(2015, time.November, 9, 22, 0, 0, 0, time.UTC),
)
events := r.buildRiemannEvents(metric)
// no event should be present
require.Len(t, events, 0)
// enable string metrics as event states
r.StringAsState = true
events = r.buildRiemannEvents(metric)
require.Len(t, events, 1)
// is event as expected?
expectedEvent := &raidman.Event{
Ttl: 0,
Time: 1447106400,
Tags: nil,
Host: "host",
State: "running",
Service: "value",
Metric: nil,
Description: "",
Attributes: map[string]string{"measurement": "test"},
}
require.Equal(t, expectedEvent, events[0])
}
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func TestConnectAndWrite(t *testing.T) {
if testing.Short() {
t.Skip("Skipping integration test in short mode")
}
r := &Riemann{
URL: fmt.Sprintf("tcp://%s:5555", testutil.GetLocalHost()),
TTL: 15.0,
Separator: "/",
MeasurementAsAttribute: false,
StringAsState: true,
DescriptionText: "metrics from telegraf",
Tags: []string{"docker"},
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}
err := r.Connect()
require.NoError(t, err)
err = r.Write(testutil.MockMetrics())
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require.NoError(t, err)
metrics := make([]telegraf.Metric, 0)
metrics = append(metrics, testutil.TestMetric(2))
metrics = append(metrics, testutil.TestMetric(3.456789))
metrics = append(metrics, testutil.TestMetric(uint(0)))
metrics = append(metrics, testutil.TestMetric("ok"))
metrics = append(metrics, testutil.TestMetric("running"))
err = r.Write(metrics)
require.NoError(t, err)
time.Sleep(200 * time.Millisecond)
// are there any "docker" tagged events in Riemann?
events, err := r.client.Query(`tagged "docker"`)
require.NoError(t, err)
require.NotZero(t, len(events))
// get Riemann events with state = "running", should be 1 event
events, err = r.client.Query(`state = "running"`)
require.NoError(t, err)
require.Len(t, events, 1)
// is event as expected?
require.Equal(t, []string{"docker", "value1"}, events[0].Tags)
require.Equal(t, "running", events[0].State)
require.Equal(t, "test1/value", events[0].Service)
require.Equal(t, "metrics from telegraf", events[0].Description)
require.Equal(t, map[string]string{"tag1": "value1"}, events[0].Attributes)
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}