Add influx v2 output plugin (#4645)

plugins/outputs/influxdb_v2/http_test.go

@@ -0,0 +1,49 @@
+package influxdb_v2_test
+
+import (
+	"net/url"
+	"testing"
+
+	influxdb "github.com/influxdata/telegraf/plugins/outputs/influxdb_v2"
+	"github.com/stretchr/testify/require"
+)
+
+func genURL(u string) *url.URL {
+	URL, _ := url.Parse(u)
+	return URL
+}
+func TestNewHTTPClient(t *testing.T) {
+	tests := []struct {
+		err bool
+		cfg *influxdb.HTTPConfig
+	}{
+		{
+			err: true,
+			cfg: &influxdb.HTTPConfig{},
+		},
+		{
+			err: true,
+			cfg: &influxdb.HTTPConfig{
+				URL: genURL("udp://localhost:9999"),
+			},
+		},
+		{
+			cfg: &influxdb.HTTPConfig{
+				URL: genURL("unix://var/run/influxd.sock"),
+			},
+		},
+	}
+
+	for i := range tests {
+		client, err := influxdb.NewHTTPClient(tests[i].cfg)
+		if !tests[i].err {
+			require.NoError(t, err)
+		} else {
+			require.Error(t, err)
+			t.Log(err)
+		}
+		if err == nil {
+			client.URL()
+		}
+	}
+}