forked from mirrors/statsd_exporter
126 lines
2.3 KiB
Go
126 lines
2.3 KiB
Go
// Copyright (c) 2013, Prometheus Team
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// All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"fmt"
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"testing"
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)
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func TestHandlePacket(t *testing.T) {
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scenarios := []struct {
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name string
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in string
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out Events
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}{
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{
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name: "empty",
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}, {
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name: "simple counter",
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in: "foo:2|c",
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out: Events{
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&CounterEvent{
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metricName: "foo",
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value: 2,
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},
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},
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}, {
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name: "simple gauge",
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in: "foo:3|g",
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out: Events{
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&GaugeEvent{
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metricName: "foo",
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value: 3,
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},
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},
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}, {
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name: "simple timer",
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in: "foo:200|ms",
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out: Events{
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&TimerEvent{
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metricName: "foo",
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value: 200,
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},
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},
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}, {
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name: "combined multiline metrics",
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in: "foo:200|ms:300|ms:5|c|@0.1:6|g\nbar:1|c:5|ms",
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out: Events{
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&TimerEvent{
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metricName: "foo",
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value: 200,
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},
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&TimerEvent{
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metricName: "foo",
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value: 300,
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},
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&CounterEvent{
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metricName: "foo",
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value: 50,
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},
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&GaugeEvent{
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metricName: "foo",
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value: 6,
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},
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&CounterEvent{
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metricName: "bar",
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value: 1,
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},
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&TimerEvent{
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metricName: "bar",
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value: 5,
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},
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},
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}, {
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name: "bad line",
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in: "foo",
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}, {
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name: "bad component",
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in: "foo:1",
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}, {
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name: "bad value",
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in: "foo:1o|c",
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}, {
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name: "illegal sampling factor",
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in: "foo:1|c|@bar",
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}, {
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name: "zero sampling factor",
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in: "foo:2|c|@0",
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out: Events{
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&CounterEvent{
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metricName: "foo",
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value: 2,
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},
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},
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}, {
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name: "illegal stat type",
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in: "foo:2|t",
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},
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}
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l := StatsDListener{}
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events := make(chan Events, 32)
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for i, scenario := range scenarios {
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l.handlePacket([]byte(scenario.in), events)
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// Flatten actual events.
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actual := Events{}
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for i := 0; i < len(events); i++ {
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actual = append(actual, <-events...)
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}
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if len(actual) != len(scenario.out) {
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t.Fatalf("%d. Expected %d events, got %d", i, len(scenario.out), len(actual))
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}
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for j, expected := range scenario.out {
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if fmt.Sprintf("%v", actual[j]) != fmt.Sprintf("%v", expected) {
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t.Fatalf("%d.%d. Expected %v, got %v", i, j, actual[j], expected)
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}
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}
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}
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}
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