mirror of
https://github.com/prometheus/statsd_exporter.git
synced 2024-06-26 16:40:33 +00:00
d1f7ca4239
This test did not fail because the regex was bad, it failed because yaml parsing failed. This fixes the yaml which uncovers a panic in initFromYAMLString.
525 lines
10 KiB
Go
525 lines
10 KiB
Go
// Copyright 2013 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"testing"
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)
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type mappings map[string]struct {
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name string
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labels map[string]string
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notPresent bool
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}
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func TestMetricMapperYAML(t *testing.T) {
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scenarios := []struct {
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config string
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configBad bool
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mappings mappings
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}{
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// Empty config.
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{},
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// Config with several mapping definitions.
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{
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config: `---
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mappings:
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- match: test.dispatcher.*.*.*
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name: "dispatch_events"
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labels:
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processor: "$1"
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action: "$2"
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result: "$3"
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job: "test_dispatcher"
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- match: test.my-dispatch-host01.name.dispatcher.*.*.*
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name: "host_dispatch_events"
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labels:
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processor: "$1"
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action: "$2"
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result: "$3"
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job: "test_dispatcher"
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- match: request_time.*.*.*.*.*.*.*.*.*.*.*.*
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name: "tyk_http_request"
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labels:
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method_and_path: "${1}"
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response_code: "${2}"
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apikey: "${3}"
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apiversion: "${4}"
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apiname: "${5}"
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apiid: "${6}"
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ipv4_t1: "${7}"
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ipv4_t2: "${8}"
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ipv4_t3: "${9}"
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ipv4_t4: "${10}"
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orgid: "${11}"
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oauthid: "${12}"
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- match: "*.*"
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name: "catchall"
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labels:
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first: "$1"
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second: "$2"
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third: "$3"
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job: "$1-$2-$3"
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- match: (.*)\.(.*)-(.*)\.(.*)
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match_type: regex
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name: "proxy_requests_total"
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labels:
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job: "$1"
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protocol: "$2"
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endpoint: "$3"
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result: "$4"
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`,
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mappings: mappings{
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"test.dispatcher.FooProcessor.send.succeeded": {
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name: "dispatch_events",
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labels: map[string]string{
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"processor": "FooProcessor",
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"action": "send",
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"result": "succeeded",
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"job": "test_dispatcher",
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},
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},
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"test.my-dispatch-host01.name.dispatcher.FooProcessor.send.succeeded": {
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name: "host_dispatch_events",
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labels: map[string]string{
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"processor": "FooProcessor",
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"action": "send",
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"result": "succeeded",
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"job": "test_dispatcher",
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},
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},
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"request_time.get/threads/1/posts.200.00000000.nonversioned.discussions.a11bbcdf0ac64ec243658dc64b7100fb.172.20.0.1.12ba97b7eaa1a50001000001.": {
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name: "tyk_http_request",
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labels: map[string]string{
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"method_and_path": "get/threads/1/posts",
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"response_code": "200",
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"apikey": "00000000",
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"apiversion": "nonversioned",
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"apiname": "discussions",
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"apiid": "a11bbcdf0ac64ec243658dc64b7100fb",
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"ipv4_t1": "172",
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"ipv4_t2": "20",
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"ipv4_t3": "0",
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"ipv4_t4": "1",
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"orgid": "12ba97b7eaa1a50001000001",
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"oauthid": "",
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},
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},
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"foo.bar": {
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name: "catchall",
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labels: map[string]string{
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"first": "foo",
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"second": "bar",
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"third": "",
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"job": "foo-bar-",
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},
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},
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"foo.bar.baz": {},
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"proxy-1.http-goober.success": {
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name: "proxy_requests_total",
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labels: map[string]string{
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"job": "proxy-1",
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"protocol": "http",
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"endpoint": "goober",
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"result": "success",
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},
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},
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},
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},
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// Config with bad regex reference.
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{
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config: `---
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mappings:
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- match: test.*
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name: "name"
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labels:
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label: "$1_foo"
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`,
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mappings: mappings{
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"test.a": {
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name: "name",
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labels: map[string]string{
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"label": "",
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},
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},
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},
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},
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// Config with good regex reference.
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{
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config: `
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mappings:
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- match: test.*
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name: "name"
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labels:
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label: "${1}_foo"
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`,
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mappings: mappings{
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"test.a": {
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name: "name",
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labels: map[string]string{
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"label": "a_foo",
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},
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},
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},
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},
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// Config with bad metric line.
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{
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config: `---
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mappings:
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- match: bad--metric-line.*.*
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name: "foo"
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labels: {}
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`,
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configBad: true,
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},
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// Config with dynamic metric name.
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{
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config: `---
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mappings:
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- match: test1.*.*
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name: "$1"
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labels: {}
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- match: test2.*.*
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name: "${1}_$2"
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labels: {}
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- match: test3\.(\w+)\.(\w+)
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match_type: regex
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name: "${2}_$1"
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labels: {}
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`,
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mappings: mappings{
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"test1.total_requests.count": {
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name: "total_requests",
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},
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"test2.total_requests.count": {
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name: "total_requests_count",
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},
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"test3.total_requests.count": {
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name: "count_total_requests",
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},
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},
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},
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// Config with bad metric name.
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{
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config: `---
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mappings:
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- match: test.*.*
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name: "0foo"
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labels: {}
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`,
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configBad: true,
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},
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// Config with no metric name.
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{
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config: `---
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mappings:
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- match: test.*.*
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labels:
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this: "$1"
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`,
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configBad: true,
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},
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// Config with no mappings.
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{
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config: ``,
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mappings: mappings{},
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},
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// Config without a trailing newline.
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{
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config: `mappings:
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- match: test.*
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name: "name"
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labels:
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label: "${1}_foo"`,
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mappings: mappings{
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"test.a": {
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name: "name",
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labels: map[string]string{
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"label": "a_foo",
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},
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},
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},
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},
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// Config with an improperly escaped *.
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{
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config: `
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mappings:
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- match: *.test.*
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name: "name"
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labels:
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label: "${1}_foo"`,
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configBad: true,
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},
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// Config with a properly escaped *.
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{
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config: `
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mappings:
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- match: "*.test.*"
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name: "name"
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labels:
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label: "${2}_foo"`,
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mappings: mappings{
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"foo.test.a": {
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name: "name",
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labels: map[string]string{
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"label": "a_foo",
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},
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},
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},
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},
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// Config with good timer type.
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{
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config: `---
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mappings:
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- match: test.*.*
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timer_type: summary
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name: "foo"
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labels: {}
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`,
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mappings: mappings{
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"test.*.*": {
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name: "foo",
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labels: map[string]string{},
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},
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},
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},
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// Config with bad timer type.
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{
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config: `---
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mappings:
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- match: test.*.*
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timer_type: wrong
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name: "foo"
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labels: {}
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`,
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configBad: true,
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},
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//Config with uncompilable regex.
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{
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config: `---
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mappings:
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- match: "*\\.foo"
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match_type: regex
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name: "foo"
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labels: {}
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`,
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configBad: true,
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},
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//Config with non-matched metric.
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{
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config: `---
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mappings:
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- match: foo.*.*
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timer_type: summary
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name: "foo"
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labels: {}
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`,
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mappings: mappings{
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"test.1.2": {
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name: "test_1_2",
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labels: map[string]string{},
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notPresent: true,
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},
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},
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},
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//Config with no name.
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{
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config: `---
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mappings:
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- match: *\.foo
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match_type: regex
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labels:
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bar: "foo"
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`,
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configBad: true,
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},
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// Example from the README.
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{
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config: `
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mappings:
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- match: test.dispatcher.*.*.*
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name: "dispatcher_events_total"
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labels:
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processor: "$1"
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action: "$2"
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outcome: "$3"
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job: "test_dispatcher"
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- match: "*.signup.*.*"
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name: "signup_events_total"
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labels:
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provider: "$2"
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outcome: "$3"
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job: "${1}_server"
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`,
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mappings: mappings{
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"test.dispatcher.FooProcessor.send.success": {
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name: "dispatcher_events_total",
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labels: map[string]string{
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"processor": "FooProcessor",
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"action": "send",
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"outcome": "success",
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"job": "test_dispatcher",
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},
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},
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"foo_product.signup.facebook.failure": {
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name: "signup_events_total",
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labels: map[string]string{
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"provider": "facebook",
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"outcome": "failure",
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"job": "foo_product_server",
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},
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},
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"test.web-server.foo.bar": {
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name: "test_web_server_foo_bar",
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labels: map[string]string{},
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},
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},
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},
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// Config that drops all.
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{
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config: `mappings:
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- match: .
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match_type: regex
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name: "drop"
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action: drop`,
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mappings: mappings{
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"test.a": {},
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"abc": {},
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},
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},
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// Config that has a catch-all to drop all.
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{
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config: `mappings:
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- match: web.*
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name: "web"
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labels:
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site: "$1"
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- match: .
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match_type: regex
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name: "drop"
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action: drop`,
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mappings: mappings{
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"test.a": {},
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"web.localhost": {
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name: "web",
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labels: map[string]string{
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"site": "localhost",
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},
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},
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},
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},
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}
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mapper := metricMapper{}
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for i, scenario := range scenarios {
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err := mapper.initFromYAMLString(scenario.config)
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if err != nil && !scenario.configBad {
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t.Fatalf("%d. Config load error: %s %s", i, scenario.config, err)
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}
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if err == nil && scenario.configBad {
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t.Fatalf("%d. Expected bad config, but loaded ok: %s", i, scenario.config)
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}
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for metric, mapping := range scenario.mappings {
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m, labels, present := mapper.getMapping(metric)
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if present && mapping.name != "" && m.Name != mapping.name {
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t.Fatalf("%d.%q: Expected name %v, got %v", i, metric, m.Name, mapping.name)
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}
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if mapping.notPresent && present {
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t.Fatalf("%d.%q: Expected metric to not be present", i, metric)
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}
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if len(labels) != len(mapping.labels) {
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t.Fatalf("%d.%q: Expected %d labels, got %d", i, metric, len(mapping.labels), len(labels))
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}
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for label, value := range labels {
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if mapping.labels[label] != value {
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t.Fatalf("%d.%q: Expected labels %v, got %v", i, metric, mapping, labels)
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}
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}
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}
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}
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}
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func TestAction(t *testing.T) {
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scenarios := []struct {
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config string
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configBad bool
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expectedAction actionType
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}{
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{
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// no action set
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config: `---
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mappings:
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- match: test.*.*
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name: "foo"
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`,
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configBad: false,
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expectedAction: actionTypeMap,
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},
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{
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// map action set
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config: `---
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mappings:
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- match: test.*.*
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name: "foo"
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action: map
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`,
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configBad: false,
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expectedAction: actionTypeMap,
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},
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{
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// drop action set
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config: `---
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mappings:
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- match: test.*.*
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name: "foo"
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action: drop
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`,
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configBad: false,
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expectedAction: actionTypeDrop,
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},
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{
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// invalid action set
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config: `---
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mappings:
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- match: test.*.*
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name: "foo"
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action: xyz
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`,
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configBad: true,
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expectedAction: actionTypeDrop,
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},
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}
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for i, scenario := range scenarios {
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mapper := metricMapper{}
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err := mapper.initFromYAMLString(scenario.config)
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if err != nil && !scenario.configBad {
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t.Fatalf("%d. Config load error: %s %s", i, scenario.config, err)
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}
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if err == nil && scenario.configBad {
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t.Fatalf("%d. Expected bad config, but loaded ok: %s", i, scenario.config)
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}
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if !scenario.configBad {
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a := mapper.Mappings[0].Action
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if scenario.expectedAction != a {
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t.Fatalf("%d: Expected action %v, got %v", i, scenario.expectedAction, a)
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}
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}
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}
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}
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