Add cloud pubsub push input plugin (#5442)
This commit is contained in:
Greg
Daniel Nelson
216
plugins/inputs/cloud_pubsub_push/pubsub_push_test.go
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216
plugins/inputs/cloud_pubsub_push/pubsub_push_test.go
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package cloud_pubsub_push
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import (
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"context"
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"fmt"
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"io"
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"net/http"
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"net/http/httptest"
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"strings"
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"sync"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/agent"
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"github.com/influxdata/telegraf/internal"
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"github.com/influxdata/telegraf/internal/models"
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"github.com/influxdata/telegraf/plugins/parsers"
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)
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func TestServeHTTP(t *testing.T) {
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tests := []struct {
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name string
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method string
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path string
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body io.Reader
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status int
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maxsize int64
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expected string
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fail bool
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full bool
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}{
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{
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name: "bad method get",
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method: "GET",
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path: "/",
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status: http.StatusMethodNotAllowed,
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},
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{
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name: "post not found",
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method: "POST",
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path: "/allthings",
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status: http.StatusNotFound,
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},
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{
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name: "post large date",
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method: "POST",
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path: "/",
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status: http.StatusRequestEntityTooLarge,
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body: strings.NewReader(`{"message":{"attributes":{"deviceId":"myPi","deviceNumId":"2808946627307959","deviceRegistryId":"my-registry","deviceRegistryLocation":"us-central1","projectId":"conference-demos","subFolder":""},"data":"dGVzdGluZ0dvb2dsZSxzZW5zb3I9Ym1lXzI4MCB0ZW1wX2M9MjMuOTUsaHVtaWRpdHk9NjIuODMgMTUzNjk1Mjk3NDU1MzUxMDIzMQ==","messageId":"204004313210337","message_id":"204004313210337","publishTime":"2018-09-14T19:22:54.587Z","publish_time":"2018-09-14T19:22:54.587Z"},"subscription":"projects/conference-demos/subscriptions/my-subscription"}`),
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},
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{
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name: "post valid data",
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method: "POST",
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path: "/",
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maxsize: 500 * 1024 * 1024,
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status: http.StatusNoContent,
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body: strings.NewReader(`{"message":{"attributes":{"deviceId":"myPi","deviceNumId":"2808946627307959","deviceRegistryId":"my-registry","deviceRegistryLocation":"us-central1","projectId":"conference-demos","subFolder":""},"data":"dGVzdGluZ0dvb2dsZSxzZW5zb3I9Ym1lXzI4MCB0ZW1wX2M9MjMuOTUsaHVtaWRpdHk9NjIuODMgMTUzNjk1Mjk3NDU1MzUxMDIzMQ==","messageId":"204004313210337","message_id":"204004313210337","publishTime":"2018-09-14T19:22:54.587Z","publish_time":"2018-09-14T19:22:54.587Z"},"subscription":"projects/conference-demos/subscriptions/my-subscription"}`),
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},
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{
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name: "fail write",
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method: "POST",
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path: "/",
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maxsize: 500 * 1024 * 1024,
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status: http.StatusServiceUnavailable,
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body: strings.NewReader(`{"message":{"attributes":{"deviceId":"myPi","deviceNumId":"2808946627307959","deviceRegistryId":"my-registry","deviceRegistryLocation":"us-central1","projectId":"conference-demos","subFolder":""},"data":"dGVzdGluZ0dvb2dsZSxzZW5zb3I9Ym1lXzI4MCB0ZW1wX2M9MjMuOTUsaHVtaWRpdHk9NjIuODMgMTUzNjk1Mjk3NDU1MzUxMDIzMQ==","messageId":"204004313210337","message_id":"204004313210337","publishTime":"2018-09-14T19:22:54.587Z","publish_time":"2018-09-14T19:22:54.587Z"},"subscription":"projects/conference-demos/subscriptions/my-subscription"}`),
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fail: true,
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},
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{
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name: "full buffer",
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method: "POST",
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path: "/",
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maxsize: 500 * 1024 * 1024,
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status: http.StatusServiceUnavailable,
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body: strings.NewReader(`{"message":{"attributes":{"deviceId":"myPi","deviceNumId":"2808946627307959","deviceRegistryId":"my-registry","deviceRegistryLocation":"us-central1","projectId":"conference-demos","subFolder":""},"data":"dGVzdGluZ0dvb2dsZSxzZW5zb3I9Ym1lXzI4MCB0ZW1wX2M9MjMuOTUsaHVtaWRpdHk9NjIuODMgMTUzNjk1Mjk3NDU1MzUxMDIzMQ==","messageId":"204004313210337","message_id":"204004313210337","publishTime":"2018-09-14T19:22:54.587Z","publish_time":"2018-09-14T19:22:54.587Z"},"subscription":"projects/conference-demos/subscriptions/my-subscription"}`),
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full: true,
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},
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{
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name: "post invalid body",
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method: "POST",
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path: "/",
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maxsize: 500 * 1024 * 1024,
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status: http.StatusBadRequest,
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body: strings.NewReader(`invalid body`),
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},
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{
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name: "post invalid data",
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method: "POST",
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path: "/",
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maxsize: 500 * 1024 * 1024,
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status: http.StatusBadRequest,
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body: strings.NewReader(`{"message":{"attributes":{"deviceId":"myPi","deviceNumId":"2808946627307959","deviceRegistryId":"my-registry","deviceRegistryLocation":"us-central1","projectId":"conference-demos","subFolder":""},"data":"not base 64 encoded data","messageId":"204004313210337","message_id":"204004313210337","publishTime":"2018-09-14T19:22:54.587Z","publish_time":"2018-09-14T19:22:54.587Z"},"subscription":"projects/conference-demos/subscriptions/my-subscription"}`),
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},
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{
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name: "post invalid data format",
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method: "POST",
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path: "/",
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maxsize: 500 * 1024 * 1024,
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status: http.StatusBadRequest,
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body: strings.NewReader(`{"message":{"attributes":{"deviceId":"myPi","deviceNumId":"2808946627307959","deviceRegistryId":"my-registry","deviceRegistryLocation":"us-central1","projectId":"conference-demos","subFolder":""},"data":"bm90IHZhbGlkIGZvcm1hdHRlZCBkYXRh","messageId":"204004313210337","message_id":"204004313210337","publishTime":"2018-09-14T19:22:54.587Z","publish_time":"2018-09-14T19:22:54.587Z"},"subscription":"projects/conference-demos/subscriptions/my-subscription"}`),
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},
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{
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name: "post invalid structured body",
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method: "POST",
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path: "/",
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maxsize: 500 * 1024 * 1024,
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status: http.StatusBadRequest,
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body: strings.NewReader(`{"message":{"attributes":{"thing":1},"data":"bm90IHZhbGlkIGZvcm1hdHRlZCBkYXRh"},"subscription":"projects/conference-demos/subscriptions/my-subscription"}`),
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},
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}
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for _, test := range tests {
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wg := &sync.WaitGroup{}
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req, err := http.NewRequest(test.method, test.path, test.body)
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require.NoError(t, err)
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rr := httptest.NewRecorder()
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pubPush := &PubSubPush{
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Path: "/",
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MaxBodySize: internal.Size{
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Size: test.maxsize,
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},
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sem: make(chan struct{}, 1),
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undelivered: make(map[telegraf.TrackingID]chan bool),
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mu: &sync.Mutex{},
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WriteTimeout: internal.Duration{Duration: time.Second * 1},
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}
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pubPush.ctx, pubPush.cancel = context.WithCancel(context.Background())
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if test.full {
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// fill buffer with fake message
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pubPush.sem <- struct{}{}
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}
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p, _ := parsers.NewParser(&parsers.Config{
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MetricName: "cloud_pubsub_push",
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DataFormat: "influx",
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})
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pubPush.SetParser(p)
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dst := make(chan telegraf.Metric, 1)
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ro := models.NewRunningOutput("test", &testOutput{failWrite: test.fail}, &models.OutputConfig{}, 1, 1)
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pubPush.acc = agent.NewAccumulator(&testMetricMaker{}, dst).WithTracking(1)
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wg.Add(1)
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go func() {
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defer wg.Done()
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pubPush.receiveDelivered()
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}()
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wg.Add(1)
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go func(status int, d chan telegraf.Metric) {
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defer wg.Done()
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for m := range d {
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ro.AddMetric(m)
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ro.Write()
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}
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}(test.status, dst)
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ctx, cancel := context.WithTimeout(req.Context(), pubPush.WriteTimeout.Duration)
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req = req.WithContext(ctx)
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pubPush.ServeHTTP(rr, req)
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require.Equal(t, test.status, rr.Code, test.name)
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if test.expected != "" {
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require.Equal(t, test.expected, rr.Body.String(), test.name)
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}
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pubPush.cancel()
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cancel()
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close(dst)
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wg.Wait()
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}
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}
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type testMetricMaker struct{}
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func (tm *testMetricMaker) Name() string {
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return "TestPlugin"
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}
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func (tm *testMetricMaker) MakeMetric(metric telegraf.Metric) telegraf.Metric {
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return metric
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}
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type testOutput struct {
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// if true, mock a write failure
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failWrite bool
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}
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func (*testOutput) Connect() error {
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return nil
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}
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func (*testOutput) Close() error {
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return nil
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}
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func (*testOutput) Description() string {
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return ""
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}
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func (*testOutput) SampleConfig() string {
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return ""
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}
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func (t *testOutput) Write(metrics []telegraf.Metric) error {
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if t.failWrite {
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return fmt.Errorf("failed write")
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}
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return nil
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}
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