add some tests

Author: powersj

plugins/outputs/influxdb_v2/http_test.go

@@ -12,6 +12,7 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/config"
 	influxdb "github.com/influxdata/telegraf/plugins/outputs/influxdb_v2"
 	"github.com/influxdata/telegraf/testutil"
 )
@@ -40,6 +41,13 @@ func TestNewHTTPClient(t *testing.T) {
 				URL: genURL("unix://var/run/influxd.sock"),
 			},
 		},
+		{
+			cfg: &influxdb.HTTPConfig{
+				URL:             genURL("unix://var/run/influxd.sock"),
+				PingTimeout:     config.Duration(15 * time.Second),
+				ReadIdleTimeout: config.Duration(30 * time.Second),
+			},
+		},
 	}
 
 	for i := range tests {
@@ -56,6 +64,66 @@ func TestNewHTTPClient(t *testing.T) {
 	}
 }
 
+func TestWrite(t *testing.T) {
+	ts := httptest.NewServer(
+		http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			switch r.URL.Path {
+			case "/api/v2/write":
+				err := r.ParseForm()
+				require.NoError(t, err)
+				require.Equal(t, r.Form["bucket"], []string{"foobar"})
+
+				body, err := io.ReadAll(r.Body)
+				require.NoError(t, err)
+				require.Contains(t, string(body), "cpu value=42.123")
+
+				w.WriteHeader(http.StatusNoContent)
+				return
+			default:
+				w.WriteHeader(http.StatusNotFound)
+				return
+			}
+		}),
+	)
+	defer ts.Close()
+
+	addr := &url.URL{
+		Scheme: "http",
+		Host:   ts.Listener.Addr().String(),
+	}
+
+	cfg := &influxdb.HTTPConfig{
+		URL:              addr,
+		Bucket:           "telegraf",
+		BucketTag:        "bucket",
+		ExcludeBucketTag: true,
+		PingTimeout:      config.Duration(15 * time.Second),
+		ReadIdleTimeout:  config.Duration(30 * time.Second),
+	}
+
+	client, err := influxdb.NewHTTPClient(cfg)
+	require.NoError(t, err)
+
+	metrics := []telegraf.Metric{
+		testutil.MustMetric(
+			"cpu",
+			map[string]string{
+				"bucket": "foobar",
+			},
+			map[string]interface{}{
+				"value": 42.123,
+			},
+			time.Unix(0, 0),
+		),
+	}
+
+	ctx := context.Background()
+	err = client.Write(ctx, metrics)
+	require.NoError(t, err)
+	err = client.Write(ctx, metrics)
+	require.NoError(t, err)
+}
+
 func TestWriteBucketTagWorksOnRetry(t *testing.T) {
 	ts := httptest.NewServer(
 		http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
@@ -84,14 +152,14 @@ func TestWriteBucketTagWorksOnRetry(t *testing.T) {
 		Host:   ts.Listener.Addr().String(),
 	}
 
-	config := &influxdb.HTTPConfig{
+	cfg := &influxdb.HTTPConfig{
 		URL:              addr,
 		Bucket:           "telegraf",
 		BucketTag:        "bucket",
 		ExcludeBucketTag: true,
 	}
 
-	client, err := influxdb.NewHTTPClient(config)
+	client, err := influxdb.NewHTTPClient(cfg)
 	require.NoError(t, err)
 
 	metrics := []telegraf.Metric{