Add digitalocean test

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>

config/config_test.go

@@ -30,6 +30,7 @@ import (
 	"github.com/prometheus/prometheus/discovery/azure"
 	sd_config "github.com/prometheus/prometheus/discovery/config"
 	"github.com/prometheus/prometheus/discovery/consul"
+	"github.com/prometheus/prometheus/discovery/digitalocean"
 	"github.com/prometheus/prometheus/discovery/dns"
 	"github.com/prometheus/prometheus/discovery/dockerswarm"
 	"github.com/prometheus/prometheus/discovery/ec2"
@@ -606,6 +607,28 @@ var expectedConf = &Config{
 				},
 			},
 		},
+		{
+			JobName: "digitalocean-droplets",
+
+			HonorTimestamps: true,
+			ScrapeInterval:  model.Duration(15 * time.Second),
+			ScrapeTimeout:   DefaultGlobalConfig.ScrapeTimeout,
+
+			MetricsPath: DefaultScrapeConfig.MetricsPath,
+			Scheme:      DefaultScrapeConfig.Scheme,
+
+			ServiceDiscoveryConfig: sd_config.ServiceDiscoveryConfig{
+				DigitalOceanSDConfigs: []*digitalocean.SDConfig{
+					{
+						HTTPClientConfig: config_util.HTTPClientConfig{
+							BearerToken: "abcdef",
+						},
+						Port:            80,
+						RefreshInterval: model.Duration(60 * time.Second),
+					},
+				},
+			},
+		},
 		{
 			JobName: "dockerswarm",
 
@@ -713,7 +736,7 @@ func TestElideSecrets(t *testing.T) {
 	yamlConfig := string(config)
 
 	matches := secretRe.FindAllStringIndex(yamlConfig, -1)
-	testutil.Assert(t, len(matches) == 7, "wrong number of secret matches found")
+	testutil.Assert(t, len(matches) == 8, "wrong number of secret matches found")
 	testutil.Assert(t, !strings.Contains(yamlConfig, "mysecret"),
 		"yaml marshal reveals authentication credentials.")
 }

config/testdata/conf.good.yml

@@ -259,6 +259,10 @@ scrape_configs:
       cert_file: valid_cert_file
       key_file: valid_key_file
 
+- job_name: digitalocean-droplets
+  digitalocean_sd_configs:
+    - bearer_token: abcdef
+
 - job_name: dockerswarm
   dockerswarm_sd_configs:
   - host: http://127.0.0.1:2375