Ensure that we can pass in a hostname

services/enterprise/enterprise.go

@@ -14,11 +14,13 @@ type Config struct {
 type Service struct {
 	hosts    []*client.Host
 	logger   *log.Logger
+	hostname string
 }
 
-func NewEnterprise(c Config) *Service {
+func NewEnterprise(c Config, hostname string) *Service {
 	return &Service{
 		hosts:    c.Hosts,
+		hostname: hostname,
 		logger:   log.New(os.Stdout, "[enterprise]", log.Ldate|log.Ltime),
 	}
 }
@@ -35,7 +37,7 @@ func (s *Service) Open() {
 func (s *Service) registerProduct(cl *client.Client) {
 	p := client.Product{
 		ProductID: "telegraf",
-		Host:      "localhost",
+		Host:      s.hostname,
 	}
 
 	_, err := cl.Register(&p)

services/enterprise/enterprise_test.go

@@ -1,6 +1,7 @@
 package enterprise_test
 
 import (
+	"encoding/json"
 	"net/http"
 	"net/http/httptest"
 	"testing"
@@ -10,15 +11,31 @@ import (
 	"github.com/influxdata/telegraf/services/enterprise"
 )
 
-func Test_RegistersWithEnterprise(t *testing.T) {
+func mockEnterprise(srvFunc func(*client.Product, error)) (chan struct{}, *httptest.Server) {
 	success := make(chan struct{})
-	mockEnterprise := http.NewServeMux()
+	me := http.NewServeMux()
-	mockEnterprise.HandleFunc("/api/v2/products", func(rw http.ResponseWriter, r *http.Request) {
+	me.HandleFunc("/api/v2/products", func(rw http.ResponseWriter, r *http.Request) {
 		if r.Method == "POST" {
+			c := &client.Product{}
+			d := json.NewDecoder(r.Body)
+			err := d.Decode(c)
+			srvFunc(c, err)
 			close(success)
 		}
 	})
-	srv := httptest.NewServer(mockEnterprise)
+	srv := httptest.NewServer(me)
+	return success, srv
+}
+
+func Test_RegistersWithEnterprise(t *testing.T) {
+	expected := "www.example.com"
+	var actualHostname string
+	success, srv := mockEnterprise(func(c *client.Product, err error) {
+		if err != nil {
+			t.Error(err.Error())
+		}
+		actualHostname = c.Host
+	})
 	defer srv.Close()
 
 	c := enterprise.Config{
@@ -26,13 +43,16 @@ func Test_RegistersWithEnterprise(t *testing.T) {
 			&client.Host{URL: srv.URL},
 		},
 	}
-	e := enterprise.NewEnterprise(c)
+	e := enterprise.NewEnterprise(c, expected)
 	e.Open()
 
-	timeout := time.After(50 * time.Millisecond)
+	timeout := time.After(1 * time.Millisecond)
 	for {
 		select {
 		case <-success:
+			if actualHostname != expected {
+				t.Errorf("Expected hostname to be %s but was %s", expected, actualHostname)
+			}
 			return
 		case <-timeout:
 			t.Fatal("Expected to receive call to Enterprise API, but received none")