forked from mirror/client_golang
703 lines
16 KiB
Go
703 lines
16 KiB
Go
// Copyright 2017 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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// +build go1.7
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package v1
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"net/http"
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"net/url"
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"reflect"
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"strings"
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"testing"
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"time"
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"github.com/prometheus/common/model"
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"github.com/prometheus/prometheus/scrape"
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)
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type apiTest struct {
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do func() (interface{}, error)
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inErr error
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inRes interface{}
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reqPath string
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reqParam url.Values
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reqMethod string
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res interface{}
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err error
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}
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type apiTestClient struct {
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*testing.T
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curTest apiTest
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}
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func (c *apiTestClient) URL(ep string, args map[string]string) *url.URL {
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path := ep
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for k, v := range args {
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path = strings.Replace(path, ":"+k, v, -1)
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}
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u := &url.URL{
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Host: "test:9090",
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Path: path,
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}
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return u
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}
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func (c *apiTestClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
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test := c.curTest
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if req.URL.Path != test.reqPath {
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c.Errorf("unexpected request path: want %s, got %s", test.reqPath, req.URL.Path)
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}
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if req.Method != test.reqMethod {
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c.Errorf("unexpected request method: want %s, got %s", test.reqMethod, req.Method)
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}
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b, err := json.Marshal(test.inRes)
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if err != nil {
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c.Fatal(err)
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}
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resp := &http.Response{}
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if test.inErr != nil {
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resp.StatusCode = statusAPIError
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} else {
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resp.StatusCode = http.StatusOK
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}
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return resp, b, test.inErr
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}
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func TestAPIs(t *testing.T) {
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testTime := time.Now()
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testURL, err := url.Parse("http://127.0.0.1:9090/api/v1/alerts")
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if err != nil {
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t.Errorf("Failed to initialize test URL.")
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}
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client := &apiTestClient{T: t}
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promAPI := &httpAPI{
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client: client,
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}
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doAlertManagers := func() func() (interface{}, error) {
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return func() (interface{}, error) {
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return promAPI.AlertManagers(context.Background())
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}
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}
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doCleanTombstones := func() func() (interface{}, error) {
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return func() (interface{}, error) {
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return nil, promAPI.CleanTombstones(context.Background())
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}
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}
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doConfig := func() func() (interface{}, error) {
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return func() (interface{}, error) {
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return promAPI.Config(context.Background())
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}
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}
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doDeleteSeries := func(matcher string, startTime time.Time, endTime time.Time) func() (interface{}, error) {
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return func() (interface{}, error) {
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return nil, promAPI.DeleteSeries(context.Background(), []string{matcher}, startTime, endTime)
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}
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}
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doFlags := func() func() (interface{}, error) {
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return func() (interface{}, error) {
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return promAPI.Flags(context.Background())
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}
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}
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doLabelValues := func(label string) func() (interface{}, error) {
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return func() (interface{}, error) {
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return promAPI.LabelValues(context.Background(), label)
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}
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}
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doQuery := func(q string, ts time.Time) func() (interface{}, error) {
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return func() (interface{}, error) {
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return promAPI.Query(context.Background(), q, ts)
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}
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}
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doQueryRange := func(q string, rng Range) func() (interface{}, error) {
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return func() (interface{}, error) {
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return promAPI.QueryRange(context.Background(), q, rng)
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}
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}
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doSeries := func(matcher string, startTime time.Time, endTime time.Time) func() (interface{}, error) {
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return func() (interface{}, error) {
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return promAPI.Series(context.Background(), []string{matcher}, startTime, endTime)
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}
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}
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doSnapshot := func(skipHead bool) func() (interface{}, error) {
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return func() (interface{}, error) {
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return promAPI.Snapshot(context.Background(), skipHead)
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}
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}
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doTargets := func() func() (interface{}, error) {
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return func() (interface{}, error) {
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return promAPI.Targets(context.Background())
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}
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}
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queryTests := []apiTest{
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{
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do: doQuery("2", testTime),
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inRes: &queryResult{
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Type: model.ValScalar,
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Result: &model.Scalar{
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Value: 2,
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Timestamp: model.TimeFromUnix(testTime.Unix()),
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},
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},
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reqMethod: "GET",
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reqPath: "/api/v1/query",
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reqParam: url.Values{
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"query": []string{"2"},
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"time": []string{testTime.Format(time.RFC3339Nano)},
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},
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res: &model.Scalar{
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Value: 2,
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Timestamp: model.TimeFromUnix(testTime.Unix()),
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},
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},
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{
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do: doQuery("2", testTime),
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inErr: fmt.Errorf("some error"),
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reqMethod: "GET",
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reqPath: "/api/v1/query",
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reqParam: url.Values{
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"query": []string{"2"},
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"time": []string{testTime.Format(time.RFC3339Nano)},
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},
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err: fmt.Errorf("some error"),
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},
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{
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do: doQueryRange("2", Range{
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Start: testTime.Add(-time.Minute),
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End: testTime,
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Step: time.Minute,
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}),
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inErr: fmt.Errorf("some error"),
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reqMethod: "GET",
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reqPath: "/api/v1/query_range",
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reqParam: url.Values{
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"query": []string{"2"},
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"start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)},
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"end": []string{testTime.Format(time.RFC3339Nano)},
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"step": []string{time.Minute.String()},
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},
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err: fmt.Errorf("some error"),
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},
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{
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do: doLabelValues("mylabel"),
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inRes: []string{"val1", "val2"},
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reqMethod: "GET",
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reqPath: "/api/v1/label/mylabel/values",
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res: model.LabelValues{"val1", "val2"},
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},
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{
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do: doLabelValues("mylabel"),
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inErr: fmt.Errorf("some error"),
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reqMethod: "GET",
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reqPath: "/api/v1/label/mylabel/values",
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err: fmt.Errorf("some error"),
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},
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{
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do: doSeries("up", testTime.Add(-time.Minute), testTime),
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inRes: []map[string]string{
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{
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"__name__": "up",
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"job": "prometheus",
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"instance": "localhost:9090"},
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},
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reqMethod: "GET",
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reqPath: "/api/v1/series",
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reqParam: url.Values{
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"match": []string{"up"},
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"start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)},
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"end": []string{testTime.Format(time.RFC3339Nano)},
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},
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res: []model.LabelSet{
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model.LabelSet{
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"__name__": "up",
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"job": "prometheus",
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"instance": "localhost:9090",
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},
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},
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},
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{
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do: doSeries("up", testTime.Add(-time.Minute), testTime),
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inErr: fmt.Errorf("some error"),
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reqMethod: "GET",
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reqPath: "/api/v1/series",
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reqParam: url.Values{
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"match": []string{"up"},
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"start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)},
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"end": []string{testTime.Format(time.RFC3339Nano)},
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},
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err: fmt.Errorf("some error"),
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},
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{
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do: doSnapshot(true),
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inRes: map[string]string{
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"name": "20171210T211224Z-2be650b6d019eb54",
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},
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reqMethod: "POST",
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reqPath: "/api/v1/admin/tsdb/snapshot",
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reqParam: url.Values{
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"skip_head": []string{"true"},
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},
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res: SnapshotResult{
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Name: "20171210T211224Z-2be650b6d019eb54",
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},
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},
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{
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do: doSnapshot(true),
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inErr: fmt.Errorf("some error"),
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reqMethod: "POST",
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reqPath: "/api/v1/admin/tsdb/snapshot",
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err: fmt.Errorf("some error"),
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},
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{
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do: doCleanTombstones(),
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reqMethod: "POST",
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reqPath: "/api/v1/admin/tsdb/clean_tombstones",
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},
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{
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do: doCleanTombstones(),
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inErr: fmt.Errorf("some error"),
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reqMethod: "POST",
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reqPath: "/api/v1/admin/tsdb/clean_tombstones",
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err: fmt.Errorf("some error"),
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},
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{
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do: doDeleteSeries("up", testTime.Add(-time.Minute), testTime),
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inRes: []map[string]string{
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{
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"__name__": "up",
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"job": "prometheus",
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"instance": "localhost:9090"},
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},
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reqMethod: "POST",
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reqPath: "/api/v1/admin/tsdb/delete_series",
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reqParam: url.Values{
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"match": []string{"up"},
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"start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)},
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"end": []string{testTime.Format(time.RFC3339Nano)},
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},
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},
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{
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do: doDeleteSeries("up", testTime.Add(-time.Minute), testTime),
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inErr: fmt.Errorf("some error"),
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reqMethod: "POST",
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reqPath: "/api/v1/admin/tsdb/delete_series",
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reqParam: url.Values{
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"match": []string{"up"},
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"start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)},
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"end": []string{testTime.Format(time.RFC3339Nano)},
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},
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err: fmt.Errorf("some error"),
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},
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{
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do: doConfig(),
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reqMethod: "GET",
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reqPath: "/api/v1/status/config",
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inRes: map[string]string{
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"yaml": "<content of the loaded config file in YAML>",
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},
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res: ConfigResult{
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YAML: "<content of the loaded config file in YAML>",
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},
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},
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{
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do: doConfig(),
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reqMethod: "GET",
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reqPath: "/api/v1/status/config",
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inErr: fmt.Errorf("some error"),
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err: fmt.Errorf("some error"),
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},
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{
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do: doFlags(),
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reqMethod: "GET",
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reqPath: "/api/v1/status/flags",
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inRes: map[string]string{
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"alertmanager.notification-queue-capacity": "10000",
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"alertmanager.timeout": "10s",
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"log.level": "info",
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"query.lookback-delta": "5m",
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"query.max-concurrency": "20",
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},
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res: FlagsResult{
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Flags{
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"alertmanager.notification-queue-capacity": "10000",
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"alertmanager.timeout": "10s",
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"log.level": "info",
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"query.lookback-delta": "5m",
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"query.max-concurrency": "20",
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},
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},
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},
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{
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do: doFlags(),
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reqMethod: "GET",
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reqPath: "/api/v1/status/flags",
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inErr: fmt.Errorf("some error"),
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err: fmt.Errorf("some error"),
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},
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{
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do: doAlertManagers(),
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reqMethod: "GET",
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reqPath: "/api/v1/alertmanagers",
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inRes: map[string]interface{}{
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"activeAlertManagers": []map[string]string{
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{
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"url": testURL.String(),
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},
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},
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"droppedAlertManagers": []map[string]string{
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{
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"url": testURL.String(),
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},
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},
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},
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res: AlertManagersResult{
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Active: []AlertManager{
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{
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URL: testURL,
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},
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},
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Dropped: []AlertManager{
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{
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URL: testURL,
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},
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},
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},
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},
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{
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do: doAlertManagers(),
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reqMethod: "GET",
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reqPath: "/api/v1/alertmanagers",
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inErr: fmt.Errorf("some error"),
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err: fmt.Errorf("some error"),
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},
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{
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do: doTargets(),
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reqMethod: "GET",
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reqPath: "/api/v1/targets",
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inRes: map[string]interface{}{
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"activeTargets": []map[string]interface{}{
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{
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"discoveredLabels": map[string]string{
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"__address__": "127.0.0.1:9090",
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"__metrics_path__": "/metrics",
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"__scheme__": "http",
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"job": "prometheus",
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},
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"labels": map[string]string{
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"instance": "127.0.0.1:9090",
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"job": "prometheus",
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},
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"scrapeUrl": testURL.String(),
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"lastError": "error while scraping target",
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"lastScrape": testTime.Format(time.RFC3339Nano),
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"health": "up",
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},
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},
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"droppedTargets": []map[string]interface{}{
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{
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"discoveredLabels": map[string]string{
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"__address__": "127.0.0.1:9100",
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"__metrics_path__": "/metrics",
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"__scheme__": "http",
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"job": "node",
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},
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},
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},
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},
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res: TargetsResult{
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Active: []ActiveTarget{
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{
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DiscoveredLabels: model.LabelSet{
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"__address__": "127.0.0.1:9090",
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"__metrics_path__": "/metrics",
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"__scheme__": "http",
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"job": "prometheus",
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},
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Labels: model.LabelSet{
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"instance": "127.0.0.1:9090",
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"job": "prometheus",
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},
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ScrapeURL: testURL,
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LastError: errors.New("error while scraping target"),
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LastScrape: testTime.Round(0),
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Health: scrape.HealthGood,
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},
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},
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Dropped: []DroppedTarget{
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{
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DiscoveredLabels: model.LabelSet{
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"__address__": "127.0.0.1:9100",
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"__metrics_path__": "/metrics",
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"__scheme__": "http",
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"job": "node",
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},
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},
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},
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},
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},
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{
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do: doTargets(),
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reqMethod: "GET",
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reqPath: "/api/v1/targets",
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inErr: fmt.Errorf("some error"),
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err: fmt.Errorf("some error"),
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},
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}
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var tests []apiTest
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tests = append(tests, queryTests...)
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for _, test := range tests {
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client.curTest = test
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res, err := test.do()
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if test.err != nil {
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if err == nil {
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t.Errorf("expected error %q but got none", test.err)
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continue
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}
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if err.Error() != test.err.Error() {
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t.Errorf("unexpected error: want %s, got %s", test.err, err)
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}
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continue
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}
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if err != nil {
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t.Errorf("unexpected error: %s", err)
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continue
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}
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if !reflect.DeepEqual(res, test.res) {
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t.Errorf("unexpected result: want %v, got %v", test.res, res)
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}
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}
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}
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|
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type testClient struct {
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*testing.T
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|
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ch chan apiClientTest
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req *http.Request
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}
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|
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type apiClientTest struct {
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code int
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response interface{}
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expected string
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err *Error
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}
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|
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func (c *testClient) URL(ep string, args map[string]string) *url.URL {
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return nil
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}
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|
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func (c *testClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
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if ctx == nil {
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c.Fatalf("context was not passed down")
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}
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if req != c.req {
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c.Fatalf("request was not passed down")
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}
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test := <-c.ch
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var b []byte
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var err error
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|
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switch v := test.response.(type) {
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case string:
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b = []byte(v)
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default:
|
|
b, err = json.Marshal(v)
|
|
if err != nil {
|
|
c.Fatal(err)
|
|
}
|
|
}
|
|
|
|
resp := &http.Response{
|
|
StatusCode: test.code,
|
|
}
|
|
|
|
return resp, b, nil
|
|
}
|
|
|
|
func TestAPIClientDo(t *testing.T) {
|
|
tests := []apiClientTest{
|
|
{
|
|
response: &apiResponse{
|
|
Status: "error",
|
|
Data: json.RawMessage(`null`),
|
|
ErrorType: ErrBadData,
|
|
Error: "failed",
|
|
},
|
|
err: &Error{
|
|
Type: ErrBadData,
|
|
Msg: "failed",
|
|
},
|
|
code: statusAPIError,
|
|
expected: `null`,
|
|
},
|
|
{
|
|
response: &apiResponse{
|
|
Status: "error",
|
|
Data: json.RawMessage(`"test"`),
|
|
ErrorType: ErrTimeout,
|
|
Error: "timed out",
|
|
},
|
|
err: &Error{
|
|
Type: ErrTimeout,
|
|
Msg: "timed out",
|
|
},
|
|
code: statusAPIError,
|
|
expected: `test`,
|
|
},
|
|
{
|
|
response: "bad json",
|
|
err: &Error{
|
|
Type: ErrBadResponse,
|
|
Msg: "bad response code 400",
|
|
},
|
|
code: http.StatusBadRequest,
|
|
},
|
|
{
|
|
response: "bad json",
|
|
err: &Error{
|
|
Type: ErrBadResponse,
|
|
Msg: "invalid character 'b' looking for beginning of value",
|
|
},
|
|
code: statusAPIError,
|
|
},
|
|
{
|
|
response: &apiResponse{
|
|
Status: "success",
|
|
Data: json.RawMessage(`"test"`),
|
|
},
|
|
err: &Error{
|
|
Type: ErrBadResponse,
|
|
Msg: "inconsistent body for response code",
|
|
},
|
|
code: statusAPIError,
|
|
},
|
|
{
|
|
response: &apiResponse{
|
|
Status: "success",
|
|
Data: json.RawMessage(`"test"`),
|
|
ErrorType: ErrTimeout,
|
|
Error: "timed out",
|
|
},
|
|
err: &Error{
|
|
Type: ErrBadResponse,
|
|
Msg: "inconsistent body for response code",
|
|
},
|
|
code: statusAPIError,
|
|
},
|
|
{
|
|
response: &apiResponse{
|
|
Status: "error",
|
|
Data: json.RawMessage(`"test"`),
|
|
ErrorType: ErrTimeout,
|
|
Error: "timed out",
|
|
},
|
|
err: &Error{
|
|
Type: ErrBadResponse,
|
|
Msg: "inconsistent body for response code",
|
|
},
|
|
code: http.StatusOK,
|
|
},
|
|
}
|
|
|
|
tc := &testClient{
|
|
T: t,
|
|
ch: make(chan apiClientTest, 1),
|
|
req: &http.Request{},
|
|
}
|
|
client := &apiClient{tc}
|
|
|
|
for _, test := range tests {
|
|
|
|
tc.ch <- test
|
|
|
|
_, body, err := client.Do(context.Background(), tc.req)
|
|
|
|
if test.err != nil {
|
|
if err == nil {
|
|
t.Errorf("expected error %q but got none", test.err)
|
|
continue
|
|
}
|
|
if test.err.Error() != err.Error() {
|
|
t.Errorf("unexpected error: want %q, got %q", test.err, err)
|
|
}
|
|
continue
|
|
}
|
|
if err != nil {
|
|
t.Errorf("unexpeceted error %s", err)
|
|
continue
|
|
}
|
|
|
|
want, got := test.expected, string(body)
|
|
if want != got {
|
|
t.Errorf("unexpected body: want %q, got %q", want, got)
|
|
}
|
|
}
|
|
}
|