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/* Copyright 2017 LinkedIn Corp. 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.
*/
package notifier
import (
"encoding/json"
"fmt"
"net/http"
"text/template"
"time"
"github.com/stretchr/testify/assert"
"net/http/httptest"
"testing"
"github.com/spf13/viper"
"go.uber.org/zap"
"github.com/linkedin/Burrow/core/protocol"
)
func fixtureHTTPNotifier() *HTTPNotifier {
module := HTTPNotifier{
Log: zap.NewNop(),
}
module.App = &protocol.ApplicationContext{}
viper.Reset()
viper.Set("notifier.test.class-name", "http")
viper.Set("notifier.test.url-open", "url_open")
viper.Set("notifier.test.url-close", "url_close")
viper.Set("notifier.test.template-open", "template_open")
viper.Set("notifier.test.template-close", "template_close")
viper.Set("notifier.test.send-close", false)
viper.Set("notifier.test.headers", map[string]string{"Token": "testtoken"})
return &module
}
func TestHttpNotifier_ImplementsModule(t *testing.T) {
assert.Implements(t, (*protocol.Module)(nil), new(HTTPNotifier))
assert.Implements(t, (*Module)(nil), new(HTTPNotifier))
}
func TestHttpNotifier_Configure(t *testing.T) {
module := fixtureHTTPNotifier()
module.Configure("test", "notifier.test")
assert.NotNil(t, module.httpClient, "Expected httpClient to be set with a client object")
}
func TestHttpNotifier_StartStop(t *testing.T) {
module := fixtureHTTPNotifier()
module.Configure("test", "notifier.test")
err := module.Start()
assert.Nil(t, err, "Expected Start to return no error")
err = module.Stop()
assert.Nil(t, err, "Expected Stop to return no error")
}
func TestHttpNotifier_AcceptConsumerGroup(t *testing.T) {
module := fixtureHTTPNotifier()
module.Configure("test", "notifier.test")
// Should always return true
assert.True(t, module.AcceptConsumerGroup(&protocol.ConsumerGroupStatus{}), "Expected any status to return True")
}
// Struct that will be used for sending HTTP requests for testing
type HTTPRequest struct {
Template string
ID string
Cluster string
Group string
}
func TestHttpNotifier_Notify_Open(t *testing.T) {
// handler that validates that we get the right values
requestHandler := func(w http.ResponseWriter, r *http.Request) {
// Must get an appropriate Content-Type header
headers, ok := r.Header["Content-Type"]
assert.True(t, ok, "Expected to receive Content-Type header")
assert.Len(t, headers, 1, "Expected to receive exactly one Content-Type header")
assert.Equalf(t, "application/json", headers[0], "Expected Content-Type header to be 'application/json', not '%v'", headers[0])
tokenHeaders, ok := r.Header["Token"]
assert.True(t, ok, "Expected to receive Token header")
assert.Equalf(t, "testtoken", tokenHeaders[0], "Expected Token header to be 'testtoken', not '%v'", tokenHeaders[0])
decoder := json.NewDecoder(r.Body)
var req HTTPRequest
err := decoder.Decode(&req)
if err != nil {
assert.Failf(t, "Failed to decode message body", "Failed to decode message body: %v", err.Error())
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
assert.Equalf(t, "template_open", req.Template, "Expected Template to be template_open, not %v", req.Template)
assert.Equalf(t, "testidstring", req.ID, "Expected ID to be testidstring, not %v", req.ID)
assert.Equalf(t, "testcluster", req.Cluster, "Expected Cluster to be testcluster, not %v", req.Cluster)
assert.Equalf(t, "testgroup", req.Group, "Expected Group to be testgroup, not %v", req.Group)
fmt.Fprint(w, "ok")
}
// create test server with handler
ts := httptest.NewServer(http.HandlerFunc(requestHandler))
defer ts.Close()
module := fixtureHTTPNotifier()
viper.Set("notifier.test.url-open", ts.URL)
// Template sends the ID, cluster, and group
module.templateOpen, _ = template.New("test").Parse("{\"template\":\"template_open\",\"id\":\"{{.ID}}\",\"cluster\":\"{{.Cluster}}\",\"group\":\"{{.Group}}\"}")
module.Configure("test", "notifier.test")
status := &protocol.ConsumerGroupStatus{
Status: protocol.StatusWarning,
Cluster: "testcluster",
Group: "testgroup",
}
module.Notify(status, "testidstring", time.Now(), false)
}
func TestHttpNotifier_Notify_Close(t *testing.T) {
// handler that validates that we get the right values
requestHandler := func(w http.ResponseWriter, r *http.Request) {
// Must get an appropriate Content-Type header
headers, ok := r.Header["Content-Type"]
assert.True(t, ok, "Expected to receive Content-Type header")
assert.Len(t, headers, 1, "Expected to receive exactly one Content-Type header")
assert.Equalf(t, "application/json", headers[0], "Expected Content-Type header to be 'application/json', not '%v'", headers[0])
tokenHeaders, ok := r.Header["Token"]
assert.True(t, ok, "Expected to receive Token header")
assert.Equalf(t, "testtoken", tokenHeaders[0], "Expected Token header to be 'testtoken', not '%v'", tokenHeaders[0])
decoder := json.NewDecoder(r.Body)
var req HTTPRequest
err := decoder.Decode(&req)
if err != nil {
assert.Failf(t, "Failed to decode message body", "Failed to decode message body: %v", err.Error())
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
assert.Equalf(t, "template_close", req.Template, "Expected Template to be template_close, not %v", req.Template)
assert.Equalf(t, "testidstring", req.ID, "Expected ID to be testidstring, not %v", req.ID)
assert.Equalf(t, "testcluster", req.Cluster, "Expected Cluster to be testcluster, not %v", req.Cluster)
assert.Equalf(t, "testgroup", req.Group, "Expected Group to be testgroup, not %v", req.Group)
fmt.Fprint(w, "ok")
}
// create test server with handler
ts := httptest.NewServer(http.HandlerFunc(requestHandler))
defer ts.Close()
module := fixtureHTTPNotifier()
viper.Set("notifier.test.send-close", true)
viper.Set("notifier.test.url-close", ts.URL)
// Template sends the ID, cluster, and group
module.templateClose, _ = template.New("test").Parse("{\"template\":\"template_close\",\"id\":\"{{.ID}}\",\"cluster\":\"{{.Cluster}}\",\"group\":\"{{.Group}}\"}")
module.Configure("test", "notifier.test")
status := &protocol.ConsumerGroupStatus{
Status: protocol.StatusWarning,
Cluster: "testcluster",
Group: "testgroup",
}
module.Notify(status, "testidstring", time.Now(), true)
}
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