mirror
/
client_golang
mirror of https://github.com/prometheus/client_golang.git
1
0
Fork 1
Code Issues Packages Projects Releases Wiki Activity
client_golang/api/prometheus/v1/api_test.go

769 lines
18 KiB
Go
Raw Blame History

// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build go1.7
package v1
import (
"context"
"encoding/json"
"errors"
"fmt"
"net/http"
"net/url"
"reflect"
"strings"
"testing"
"time"
"github.com/prometheus/common/model"
)
type apiTest struct {
do func() (interface{}, error)
inErr error
inStatusCode int
inRes interface{}
reqPath string
reqParam url.Values
reqMethod string
res interface{}
err error
}
type apiTestClient struct {
*testing.T
curTest apiTest
}
func (c *apiTestClient) URL(ep string, args map[string]string) *url.URL {
path := ep
for k, v := range args {
path = strings.Replace(path, ":"+k, v, -1)
}
u := &url.URL{
Host: "test:9090",
Path: path,
}
return u
}
func (c *apiTestClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
test := c.curTest
if req.URL.Path != test.reqPath {
c.Errorf("unexpected request path: want %s, got %s", test.reqPath, req.URL.Path)
}
if req.Method != test.reqMethod {
c.Errorf("unexpected request method: want %s, got %s", test.reqMethod, req.Method)
}
b, err := json.Marshal(test.inRes)
if err != nil {
c.Fatal(err)
}
resp := &http.Response{}
if test.inStatusCode != 0 {
resp.StatusCode = test.inStatusCode
} else if test.inErr != nil {
resp.StatusCode = statusAPIError
} else {
resp.StatusCode = http.StatusOK
}
return resp, b, test.inErr
}
func TestAPIs(t *testing.T) {
testTime := time.Now()
client := &apiTestClient{T: t}
promAPI := &httpAPI{
client: client,
}
doAlertManagers := func() func() (interface{}, error) {
return func() (interface{}, error) {
return promAPI.AlertManagers(context.Background())
}
}
doCleanTombstones := func() func() (interface{}, error) {
return func() (interface{}, error) {
return nil, promAPI.CleanTombstones(context.Background())
}
}
doConfig := func() func() (interface{}, error) {
return func() (interface{}, error) {
return promAPI.Config(context.Background())
}
}
doDeleteSeries := func(matcher string, startTime time.Time, endTime time.Time) func() (interface{}, error) {
return func() (interface{}, error) {
return nil, promAPI.DeleteSeries(context.Background(), []string{matcher}, startTime, endTime)
}
}
doFlags := func() func() (interface{}, error) {
return func() (interface{}, error) {
return promAPI.Flags(context.Background())
}
}
doLabelValues := func(label string) func() (interface{}, error) {
return func() (interface{}, error) {
return promAPI.LabelValues(context.Background(), label)
}
}
doQuery := func(q string, ts time.Time) func() (interface{}, error) {
return func() (interface{}, error) {
return promAPI.Query(context.Background(), q, ts)
}
}
doQueryRange := func(q string, rng Range) func() (interface{}, error) {
return func() (interface{}, error) {
return promAPI.QueryRange(context.Background(), q, rng)
}
}
doSeries := func(matcher string, startTime time.Time, endTime time.Time) func() (interface{}, error) {
return func() (interface{}, error) {
return promAPI.Series(context.Background(), []string{matcher}, startTime, endTime)
}
}
doSnapshot := func(skipHead bool) func() (interface{}, error) {
return func() (interface{}, error) {
return promAPI.Snapshot(context.Background(), skipHead)
}
}
doTargets := func() func() (interface{}, error) {
return func() (interface{}, error) {
return promAPI.Targets(context.Background())
}
}
queryTests := []apiTest{
{
do: doQuery("2", testTime),
inRes: &queryResult{
Type: model.ValScalar,
Result: &model.Scalar{
Value: 2,
Timestamp: model.TimeFromUnix(testTime.Unix()),
},
},
reqMethod: "GET",
reqPath: "/api/v1/query",
reqParam: url.Values{
"query": []string{"2"},
"time": []string{testTime.Format(time.RFC3339Nano)},
},
res: &model.Scalar{
Value: 2,
Timestamp: model.TimeFromUnix(testTime.Unix()),
},
},
{
do: doQuery("2", testTime),
inErr: fmt.Errorf("some error"),
reqMethod: "GET",
reqPath: "/api/v1/query",
reqParam: url.Values{
"query": []string{"2"},
"time": []string{testTime.Format(time.RFC3339Nano)},
},
err: fmt.Errorf("some error"),
},
{
do: doQuery("2", testTime),
inRes: "some body",
inStatusCode: 500,
inErr: &Error{
Type: ErrServer,
Msg: "server error: 500",
Detail: "some body",
},
reqMethod: "GET",
reqPath: "/api/v1/query",
reqParam: url.Values{
"query": []string{"2"},
"time": []string{testTime.Format(time.RFC3339Nano)},
},
err: errors.New("server_error: server error: 500"),
},
{
do: doQuery("2", testTime),
inRes: "some body",
inStatusCode: 404,
inErr: &Error{
Type: ErrClient,
Msg: "client error: 404",
Detail: "some body",
},
reqMethod: "GET",
reqPath: "/api/v1/query",
reqParam: url.Values{
"query": []string{"2"},
"time": []string{testTime.Format(time.RFC3339Nano)},
},
err: errors.New("client_error: client error: 404"),
},
{
do: doQueryRange("2", Range{
Start: testTime.Add(-time.Minute),
End: testTime,
Step: time.Minute,
}),
inErr: fmt.Errorf("some error"),
reqMethod: "GET",
reqPath: "/api/v1/query_range",
reqParam: url.Values{
"query": []string{"2"},
"start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)},
"end": []string{testTime.Format(time.RFC3339Nano)},
"step": []string{time.Minute.String()},
},
err: fmt.Errorf("some error"),
},
{
do: doLabelValues("mylabel"),
inRes: []string{"val1", "val2"},
reqMethod: "GET",
reqPath: "/api/v1/label/mylabel/values",
res: model.LabelValues{"val1", "val2"},
},
{
do: doLabelValues("mylabel"),
inErr: fmt.Errorf("some error"),
reqMethod: "GET",
reqPath: "/api/v1/label/mylabel/values",
err: fmt.Errorf("some error"),
},
{
do: doSeries("up", testTime.Add(-time.Minute), testTime),
inRes: []map[string]string{
{
"__name__": "up",
"job": "prometheus",
"instance": "localhost:9090"},
},
reqMethod: "GET",
reqPath: "/api/v1/series",
reqParam: url.Values{
"match": []string{"up"},
"start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)},
"end": []string{testTime.Format(time.RFC3339Nano)},
},
res: []model.LabelSet{
model.LabelSet{
"__name__": "up",
"job": "prometheus",
"instance": "localhost:9090",
},
},
},
{
do: doSeries("up", testTime.Add(-time.Minute), testTime),
inErr: fmt.Errorf("some error"),
reqMethod: "GET",
reqPath: "/api/v1/series",
reqParam: url.Values{
"match": []string{"up"},
"start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)},
"end": []string{testTime.Format(time.RFC3339Nano)},
},
err: fmt.Errorf("some error"),
},
{
do: doSnapshot(true),
inRes: map[string]string{
"name": "20171210T211224Z-2be650b6d019eb54",
},
reqMethod: "POST",
reqPath: "/api/v1/admin/tsdb/snapshot",
reqParam: url.Values{
"skip_head": []string{"true"},
},
res: SnapshotResult{
Name: "20171210T211224Z-2be650b6d019eb54",
},
},
{
do: doSnapshot(true),
inErr: fmt.Errorf("some error"),
reqMethod: "POST",
reqPath: "/api/v1/admin/tsdb/snapshot",
err: fmt.Errorf("some error"),
},
{
do: doCleanTombstones(),
reqMethod: "POST",
reqPath: "/api/v1/admin/tsdb/clean_tombstones",
},
{
do: doCleanTombstones(),
inErr: fmt.Errorf("some error"),
reqMethod: "POST",
reqPath: "/api/v1/admin/tsdb/clean_tombstones",
err: fmt.Errorf("some error"),
},
{
do: doDeleteSeries("up", testTime.Add(-time.Minute), testTime),
inRes: []map[string]string{
{
"__name__": "up",
"job": "prometheus",
"instance": "localhost:9090"},
},
reqMethod: "POST",
reqPath: "/api/v1/admin/tsdb/delete_series",
reqParam: url.Values{
"match": []string{"up"},
"start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)},
"end": []string{testTime.Format(time.RFC3339Nano)},
},
},
{
do: doDeleteSeries("up", testTime.Add(-time.Minute), testTime),
inErr: fmt.Errorf("some error"),
reqMethod: "POST",
reqPath: "/api/v1/admin/tsdb/delete_series",
reqParam: url.Values{
"match": []string{"up"},
"start": []string{testTime.Add(-time.Minute).Format(time.RFC3339Nano)},
"end": []string{testTime.Format(time.RFC3339Nano)},
},
err: fmt.Errorf("some error"),
},
{
do: doConfig(),
reqMethod: "GET",
reqPath: "/api/v1/status/config",
inRes: map[string]string{
"yaml": "<content of the loaded config file in YAML>",
},
res: ConfigResult{
YAML: "<content of the loaded config file in YAML>",
},
},
{
do: doConfig(),
reqMethod: "GET",
reqPath: "/api/v1/status/config",
inErr: fmt.Errorf("some error"),
err: fmt.Errorf("some error"),
},
{
do: doFlags(),
reqMethod: "GET",
reqPath: "/api/v1/status/flags",
inRes: map[string]string{
"alertmanager.notification-queue-capacity": "10000",
"alertmanager.timeout": "10s",
"log.level": "info",
"query.lookback-delta": "5m",
"query.max-concurrency": "20",
},
res: FlagsResult{
"alertmanager.notification-queue-capacity": "10000",
"alertmanager.timeout": "10s",
"log.level": "info",
"query.lookback-delta": "5m",
"query.max-concurrency": "20",
},
},
{
do: doFlags(),
reqMethod: "GET",
reqPath: "/api/v1/status/flags",
inErr: fmt.Errorf("some error"),
err: fmt.Errorf("some error"),
},
{
do: doAlertManagers(),
reqMethod: "GET",
reqPath: "/api/v1/alertmanagers",
inRes: map[string]interface{}{
"activeAlertManagers": []map[string]string{
{
"url": "http://127.0.0.1:9091/api/v1/alerts",
},
},
"droppedAlertManagers": []map[string]string{
{
"url": "http://127.0.0.1:9092/api/v1/alerts",
},
},
},
res: AlertManagersResult{
Active: []AlertManager{
{
URL: "http://127.0.0.1:9091/api/v1/alerts",
},
},
Dropped: []AlertManager{
{
URL: "http://127.0.0.1:9092/api/v1/alerts",
},
},
},
},
{
do: doAlertManagers(),
reqMethod: "GET",
reqPath: "/api/v1/alertmanagers",
inErr: fmt.Errorf("some error"),
err: fmt.Errorf("some error"),
},
{
do: doTargets(),
reqMethod: "GET",
reqPath: "/api/v1/targets",
inRes: map[string]interface{}{
"activeTargets": []map[string]interface{}{
{
"discoveredLabels": map[string]string{
"__address__": "127.0.0.1:9090",
"__metrics_path__": "/metrics",
"__scheme__": "http",
"job": "prometheus",
},
"labels": map[string]string{
"instance": "127.0.0.1:9090",
"job": "prometheus",
},
"scrapeUrl": "http://127.0.0.1:9090",
"lastError": "error while scraping target",
"lastScrape": testTime.UTC().Format(time.RFC3339Nano),
"health": "up",
},
},
"droppedTargets": []map[string]interface{}{
{
"discoveredLabels": map[string]string{
"__address__": "127.0.0.1:9100",
"__metrics_path__": "/metrics",
"__scheme__": "http",
"job": "node",
},
},
},
},
res: TargetsResult{
Active: []ActiveTarget{
{
DiscoveredLabels: model.LabelSet{
"__address__": "127.0.0.1:9090",
"__metrics_path__": "/metrics",
"__scheme__": "http",
"job": "prometheus",
},
Labels: model.LabelSet{
"instance": "127.0.0.1:9090",
"job": "prometheus",
},
ScrapeURL: "http://127.0.0.1:9090",
LastError: "error while scraping target",
LastScrape: testTime.UTC(),
Health: HealthGood,
},
},
Dropped: []DroppedTarget{
{
DiscoveredLabels: model.LabelSet{
"__address__": "127.0.0.1:9100",
"__metrics_path__": "/metrics",
"__scheme__": "http",
"job": "node",
},
},
},
},
},
{
do: doTargets(),
reqMethod: "GET",
reqPath: "/api/v1/targets",
inErr: fmt.Errorf("some error"),
err: fmt.Errorf("some error"),
},
}
var tests []apiTest
tests = append(tests, queryTests...)
for i, test := range tests {
t.Run(fmt.Sprintf("%d", i), func(t *testing.T) {
client.curTest = test
res, err := test.do()
if test.err != nil {
if err == nil {
t.Fatalf("expected error %q but got none", test.err)
}
if err.Error() != test.err.Error() {
t.Errorf("unexpected error: want %s, got %s", test.err, err)
}
if apiErr, ok := err.(*Error); ok {
if apiErr.Detail != test.inRes {
t.Errorf("%q should be %q", apiErr.Detail, test.inRes)
}
}
return
}
if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if !reflect.DeepEqual(res, test.res) {
t.Errorf("unexpected result: want %v, got %v", test.res, res)
}
})
}
}
type testClient struct {
*testing.T
ch chan apiClientTest
req *http.Request
}
type apiClientTest struct {
code int
response interface{}
expectedBody string
expectedErr *Error
}
func (c *testClient) URL(ep string, args map[string]string) *url.URL {
return nil
}
func (c *testClient) Do(ctx context.Context, req *http.Request) (*http.Response, []byte, error) {
if ctx == nil {
c.Fatalf("context was not passed down")
}
if req != c.req {
c.Fatalf("request was not passed down")
}
test := <-c.ch
var b []byte
var err error
switch v := test.response.(type) {
case string:
b = []byte(v)
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{
{
code: statusAPIError,
response: &apiResponse{
Status: "error",
Data: json.RawMessage(`null`),
ErrorType: ErrBadData,
Error: "failed",
},
expectedErr: &Error{
Type: ErrBadData,
Msg: "failed",
},
expectedBody: `null`,
},
{
code: statusAPIError,
response: &apiResponse{
Status: "error",
Data: json.RawMessage(`"test"`),
ErrorType: ErrTimeout,
Error: "timed out",
},
expectedErr: &Error{
Type: ErrTimeout,
Msg: "timed out",
},
expectedBody: `test`,
},
{
code: http.StatusInternalServerError,
response: "500 error details",
expectedErr: &Error{
Type: ErrServer,
Msg: "server error: 500",
Detail: "500 error details",
},
},
{
code: http.StatusNotFound,
response: "404 error details",
expectedErr: &Error{
Type: ErrClient,
Msg: "client error: 404",
Detail: "404 error details",
},
},
{
code: http.StatusBadRequest,
response: &apiResponse{
Status: "error",
Data: json.RawMessage(`null`),
ErrorType: ErrBadData,
Error: "end timestamp must not be before start time",
},
expectedErr: &Error{
Type: ErrBadData,
Msg: "end timestamp must not be before start time",
},
},
{
code: statusAPIError,
response: "bad json",
expectedErr: &Error{
Type: ErrBadResponse,
Msg: "invalid character 'b' looking for beginning of value",
},
},
{
code: statusAPIError,
response: &apiResponse{
Status: "success",
Data: json.RawMessage(`"test"`),
},
expectedErr: &Error{
Type: ErrBadResponse,
Msg: "inconsistent body for response code",
},
},
{
code: statusAPIError,
response: &apiResponse{
Status: "success",
Data: json.RawMessage(`"test"`),
ErrorType: ErrTimeout,
Error: "timed out",
},
expectedErr: &Error{
Type: ErrBadResponse,
Msg: "inconsistent body for response code",
},
},
{
code: http.StatusOK,
response: &apiResponse{
Status: "error",
Data: json.RawMessage(`"test"`),
ErrorType: ErrTimeout,
Error: "timed out",
},
expectedErr: &Error{
Type: ErrBadResponse,
Msg: "inconsistent body for response code",
},
},
}
tc := &testClient{
T: t,
ch: make(chan apiClientTest, 1),
req: &http.Request{},
}
client := &apiClient{tc}
for i, test := range tests {
t.Run(fmt.Sprintf("%d", i), func(t *testing.T) {
tc.ch <- test
_, body, err := client.Do(context.Background(), tc.req)
if test.expectedErr != nil {
if err == nil {
t.Fatalf("expected error %q but got none", test.expectedErr)
}
if test.expectedErr.Error() != err.Error() {
t.Errorf("unexpected error: want %q, got %q", test.expectedErr, err)
}
if test.expectedErr.Detail != "" {
apiErr := err.(*Error)
if apiErr.Detail != test.expectedErr.Detail {
t.Errorf("unexpected error details: want %q, got %q", test.expectedErr.Detail, apiErr.Detail)
}
}
return
}
if err != nil {
t.Fatalf("unexpeceted error %s", err)
}
want, got := test.expectedBody, string(body)
if want != got {
t.Errorf("unexpected body: want %q, got %q", want, got)
}
})
}
}
Reference in New Issue View Git Blame Copy Permalink