telegraf/plugins/outputs/influxdb/influxdb_test.go

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package influxdb
import (
"fmt"
"net/http"
"net/http/httptest"
"testing"
2016-01-20 18:57:35 +00:00
"github.com/influxdata/telegraf/testutil"
"github.com/stretchr/testify/require"
)
func TestUDPInflux(t *testing.T) {
i := InfluxDB{
URLs: []string{"udp://localhost:8089"},
}
err := i.Connect()
require.NoError(t, err)
err = i.Write(testutil.MockMetrics())
require.NoError(t, err)
require.NoError(t, i.Close())
}
func TestHTTPInflux(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/write":
// test that database is set properly
if r.FormValue("db") != "test" {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
}
// test that user agent is set properly
if r.UserAgent() != "telegraf" {
w.WriteHeader(http.StatusTeapot)
w.Header().Set("Content-Type", "application/json")
}
w.WriteHeader(http.StatusNoContent)
w.Header().Set("Content-Type", "application/json")
case "/query":
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}]}`)
}
}))
defer ts.Close()
i := newInflux()
i.URLs = []string{ts.URL}
i.Database = "test"
i.UserAgent = "telegraf"
err := i.Connect()
require.NoError(t, err)
err = i.Write(testutil.MockMetrics())
require.NoError(t, err)
require.NoError(t, i.Close())
}
func TestUDPConnectError(t *testing.T) {
i := InfluxDB{
URLs: []string{"udp://foobar:8089"},
}
err := i.Connect()
require.Error(t, err)
i = InfluxDB{
URLs: []string{"udp://localhost:9999999"},
}
err = i.Connect()
require.Error(t, err)
}
func TestHTTPConnectError_InvalidURL(t *testing.T) {
i := InfluxDB{
URLs: []string{"http://foobar:8089"},
}
err := i.Connect()
require.Error(t, err)
i = InfluxDB{
URLs: []string{"http://localhost:9999999"},
}
err = i.Connect()
require.Error(t, err)
}
func TestHTTPConnectError_DatabaseCreateFail(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/query":
w.WriteHeader(http.StatusNotFound)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"test error"}`)
}
}))
defer ts.Close()
i := InfluxDB{
URLs: []string{ts.URL},
Database: "test",
}
// database creation errors do not return an error from Connect
// they are only logged.
err := i.Connect()
require.NoError(t, err)
require.NoError(t, i.Close())
}
func TestHTTPError_DatabaseNotFound(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/write":
w.WriteHeader(http.StatusNotFound)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"database not found"}`)
case "/query":
w.WriteHeader(http.StatusNotFound)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"database not found"}`)
}
}))
defer ts.Close()
i := InfluxDB{
URLs: []string{ts.URL},
Database: "test",
}
err := i.Connect()
require.NoError(t, err)
err = i.Write(testutil.MockMetrics())
require.Error(t, err)
require.NoError(t, i.Close())
}
// field type conflict does not return an error, instead we
func TestHTTPError_FieldTypeConflict(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/write":
w.WriteHeader(http.StatusNotFound)
w.Header().Set("Content-Type", "application/json")
fmt.Fprintln(w, `{"results":[{}],"error":"field type conflict: input field \"value\" on measurement \"test\" is type integer, already exists as type float dropped=1"}`)
}
}))
defer ts.Close()
i := InfluxDB{
URLs: []string{ts.URL},
Database: "test",
}
err := i.Connect()
require.NoError(t, err)
err = i.Write(testutil.MockMetrics())
require.NoError(t, err)
require.NoError(t, i.Close())
}