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// SPDX-License-Identifier: GPL-3.0-or-later
package nginxvts
import (
"net/http"
"net/http/httptest"
"os"
"testing"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
"github.com/netdata/netdata/go/go.d.plugin/pkg/tlscfg"
"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
var (
dataConfigJSON, _ = os.ReadFile("testdata/config.json")
dataConfigYAML, _ = os.ReadFile("testdata/config.yaml")
dataVer0118Response, _ = os.ReadFile("testdata/vts-v0.1.18.json")
)
func Test_testDataIsValid(t *testing.T) {
for name, data := range map[string][]byte{
"dataConfigJSON": dataConfigJSON,
"dataConfigYAML": dataConfigYAML,
"dataVer0118Response": dataVer0118Response,
} {
require.NotNil(t, data, name)
}
}
func TestNginxVTS_ConfigurationSerialize(t *testing.T) {
module.TestConfigurationSerialize(t, &NginxVTS{}, dataConfigJSON, dataConfigYAML)
}
func TestNginxVTS_Init(t *testing.T) {
tests := map[string]struct {
config Config
wantNumOfCharts int
wantFail bool
}{
"default": {
wantNumOfCharts: numOfCharts(
mainCharts,
sharedZonesCharts,
serverZonesCharts,
),
config: New().Config,
},
"URL not set": {
wantFail: true,
config: Config{
HTTP: web.HTTP{
Request: web.Request{URL: ""},
}},
},
"invalid TLSCA": {
wantFail: true,
config: Config{
HTTP: web.HTTP{
Client: web.Client{
TLSConfig: tlscfg.TLSConfig{TLSCA: "testdata/tls"},
},
}},
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
es := New()
es.Config = test.config
if test.wantFail {
assert.Error(t, es.Init())
} else {
assert.NoError(t, es.Init())
assert.Equal(t, test.wantNumOfCharts, len(*es.Charts()))
}
})
}
}
func TestNginxVTS_Check(t *testing.T) {
tests := map[string]struct {
prepare func(*testing.T) (vts *NginxVTS, cleanup func())
wantFail bool
}{
"valid data": {prepare: prepareNginxVTSValidData},
"invalid data": {prepare: prepareNginxVTSInvalidData, wantFail: true},
"404": {prepare: prepareNginxVTS404, wantFail: true},
"connection refused": {prepare: prepareNginxVTSConnectionRefused, wantFail: true},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
vts, cleanup := test.prepare(t)
defer cleanup()
if test.wantFail {
assert.Error(t, vts.Check())
} else {
assert.NoError(t, vts.Check())
}
})
}
}
func TestNginxVTS_Charts(t *testing.T) {
assert.Nil(t, New().Charts())
}
func TestNginxVTS_Cleanup(t *testing.T) {
assert.NotPanics(t, New().Cleanup)
}
func TestNginxVTS_Collect(t *testing.T) {
tests := map[string]struct {
// prepare func() *NginxVTS
prepare func(t *testing.T) (vts *NginxVTS, cleanup func())
wantCollected map[string]int64
checkCharts bool
}{
"right metrics": {
prepare: prepareNginxVTSValidData,
wantCollected: map[string]int64{
// Nginx running time
"uptime": 319,
// Nginx connections
"connections_active": 2,
"connections_reading": 0,
"connections_writing": 1,
"connections_waiting": 1,
"connections_accepted": 12,
"connections_handled": 12,
"connections_requests": 17,
// Nginx shared memory
"sharedzones_maxsize": 1048575,
"sharedzones_usedsize": 45799,
"sharedzones_usednode": 13,
// Nginx traffic
"total_requestcounter": 2,
"total_inbytes": 156,
"total_outbytes": 692,
// Nginx response code
"total_responses_1xx": 1,
"total_responses_2xx": 2,
"total_responses_3xx": 3,
"total_responses_4xx": 4,
"total_responses_5xx": 5,
// Nginx cache
"total_cache_miss": 2,
"total_cache_bypass": 4,
"total_cache_expired": 6,
"total_cache_stale": 8,
"total_cache_updating": 10,
"total_cache_revalidated": 12,
"total_cache_hit": 14,
"total_cache_scarce": 16,
},
checkCharts: true,
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
vts, cleanup := test.prepare(t)
defer cleanup()
collected := vts.Collect()
assert.Equal(t, test.wantCollected, collected)
if test.checkCharts {
ensureCollectedHasAllChartsDimsVarsIDs(t, vts, collected)
}
})
}
}
func ensureCollectedHasAllChartsDimsVarsIDs(t *testing.T, vts *NginxVTS, collected map[string]int64) {
for _, chart := range *vts.Charts() {
if chart.Obsolete {
continue
}
for _, dim := range chart.Dims {
_, ok := collected[dim.ID]
assert.Truef(t, ok, "collected metrics has no data for dim '%s' chart '%s'", dim.ID, chart.ID)
}
for _, v := range chart.Vars {
_, ok := collected[v.ID]
assert.Truef(t, ok, "collected metrics has no data for var '%s' chart '%s'", v.ID, chart.ID)
}
}
}
func prepareNginxVTS(t *testing.T, createNginxVTS func() *NginxVTS) (vts *NginxVTS, cleanup func()) {
t.Helper()
vts = createNginxVTS()
srv := prepareNginxVTSEndpoint()
vts.URL = srv.URL
require.NoError(t, vts.Init())
return vts, srv.Close
}
func prepareNginxVTSValidData(t *testing.T) (vts *NginxVTS, cleanup func()) {
return prepareNginxVTS(t, New)
}
func prepareNginxVTSInvalidData(t *testing.T) (*NginxVTS, func()) {
t.Helper()
srv := httptest.NewServer(http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
_, _ = w.Write([]byte("hello and\n goodbye"))
}))
vts := New()
vts.URL = srv.URL
require.NoError(t, vts.Init())
return vts, srv.Close
}
func prepareNginxVTS404(t *testing.T) (*NginxVTS, func()) {
t.Helper()
srv := httptest.NewServer(http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusNotFound)
}))
vts := New()
vts.URL = srv.URL
require.NoError(t, vts.Init())
return vts, srv.Close
}
func prepareNginxVTSConnectionRefused(t *testing.T) (*NginxVTS, func()) {
t.Helper()
vts := New()
vts.URL = "http://127.0.0.1:18080"
require.NoError(t, vts.Init())
return vts, func() {}
}
func prepareNginxVTSEndpoint() *httptest.Server {
return httptest.NewServer(http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/":
_, _ = w.Write(dataVer0118Response)
default:
w.WriteHeader(http.StatusNotFound)
}
}))
}
func numOfCharts(charts ...module.Charts) (num int) {
for _, v := range charts {
num += len(v)
}
return num
}
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