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// SPDX-License-Identifier: GPL-3.0-or-later
package logstash
import (
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
"net/http"
"net/http/httptest"
"os"
"testing"
"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")
dataNodeStatsMetrics, _ = os.ReadFile("testdata/stats.json")
)
func Test_testDataIsValid(t *testing.T) {
for name, data := range map[string][]byte{
"dataConfigJSON": dataConfigJSON,
"dataConfigYAML": dataConfigYAML,
"dataNodeStatsMetrics": dataNodeStatsMetrics,
} {
require.NotNilf(t, data, name)
}
}
func TestLogstash_ConfigurationSerialize(t *testing.T) {
module.TestConfigurationSerialize(t, &Logstash{}, dataConfigJSON, dataConfigYAML)
}
func TestLogstash_Init(t *testing.T) {
tests := map[string]struct {
wantFail bool
config Config
}{
"success with default": {
wantFail: false,
config: New().Config,
},
"fail when URL not set": {
wantFail: true,
config: Config{
HTTP: web.HTTP{
Request: web.Request{URL: ""},
},
},
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
ls := New()
ls.Config = test.config
if test.wantFail {
assert.Error(t, ls.Init())
} else {
assert.NoError(t, ls.Init())
}
})
}
}
func TestLogstash_Charts(t *testing.T) {
assert.NotNil(t, New().Charts())
}
func TestLogstash_Cleanup(t *testing.T) {
assert.NotPanics(t, New().Cleanup)
}
func TestLogstash_Check(t *testing.T) {
tests := map[string]struct {
wantFail bool
prepare func(t *testing.T) (ls *Logstash, cleanup func())
}{
"success on valid response": {
wantFail: false,
prepare: caseValidResponse,
},
"fail on invalid data response": {
wantFail: true,
prepare: caseInvalidDataResponse,
},
"fail on connection refused": {
wantFail: true,
prepare: caseConnectionRefused,
},
"fail on 404 response": {
wantFail: true,
prepare: case404,
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
ls, cleanup := test.prepare(t)
defer cleanup()
if test.wantFail {
assert.Error(t, ls.Check())
} else {
assert.NoError(t, ls.Check())
}
})
}
}
func TestLogstash_Collect(t *testing.T) {
tests := map[string]struct {
prepare func(t *testing.T) (ls *Logstash, cleanup func())
wantNumOfCharts int
wantMetrics map[string]int64
}{
"success on valid response": {
prepare: caseValidResponse,
wantNumOfCharts: len(charts) + len(pipelineChartsTmpl),
wantMetrics: map[string]int64{
"event_duration_in_millis": 0,
"event_filtered": 0,
"event_in": 0,
"event_out": 0,
"event_queue_push_duration_in_millis": 0,
"jvm_gc_collectors_eden_collection_count": 5796,
"jvm_gc_collectors_eden_collection_time_in_millis": 45008,
"jvm_gc_collectors_old_collection_count": 7,
"jvm_gc_collectors_old_collection_time_in_millis": 3263,
"jvm_mem_heap_committed_in_bytes": 528154624,
"jvm_mem_heap_used_in_bytes": 189973480,
"jvm_mem_heap_used_percent": 35,
"jvm_mem_pools_eden_committed_in_bytes": 69795840,
"jvm_mem_pools_eden_used_in_bytes": 2600120,
"jvm_mem_pools_old_committed_in_bytes": 449642496,
"jvm_mem_pools_old_used_in_bytes": 185944824,
"jvm_mem_pools_survivor_committed_in_bytes": 8716288,
"jvm_mem_pools_survivor_used_in_bytes": 1428536,
"jvm_threads_count": 28,
"jvm_uptime_in_millis": 699809475,
"pipelines_pipeline-1_event_duration_in_millis": 5027018,
"pipelines_pipeline-1_event_filtered": 567639,
"pipelines_pipeline-1_event_in": 567639,
"pipelines_pipeline-1_event_out": 567639,
"pipelines_pipeline-1_event_queue_push_duration_in_millis": 84241,
"process_open_file_descriptors": 101,
},
},
"fail on invalid data response": {
prepare: caseInvalidDataResponse,
wantNumOfCharts: 0,
wantMetrics: nil,
},
"fail on connection refused": {
prepare: caseConnectionRefused,
wantNumOfCharts: 0,
wantMetrics: nil,
},
"fail on 404 response": {
prepare: case404,
wantNumOfCharts: 0,
wantMetrics: nil,
},
}
for name, test := range tests {
t.Run(name, func(t *testing.T) {
ls, cleanup := test.prepare(t)
defer cleanup()
mx := ls.Collect()
require.Equal(t, test.wantMetrics, mx)
if len(test.wantMetrics) > 0 {
assert.Equal(t, test.wantNumOfCharts, len(*ls.Charts()))
ensureCollectedHasAllChartsDimsVarsIDs(t, ls, mx)
}
})
}
}
func ensureCollectedHasAllChartsDimsVarsIDs(t *testing.T, ls *Logstash, mx map[string]int64) {
for _, chart := range *ls.Charts() {
for _, dim := range chart.Dims {
_, ok := mx[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 := mx[v.ID]
assert.Truef(t, ok, "collected metrics has no data for var '%s' chart '%s'", v.ID, chart.ID)
}
}
}
func caseValidResponse(t *testing.T) (*Logstash, func()) {
t.Helper()
srv := httptest.NewServer(http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case urlPathNodeStatsAPI:
_, _ = w.Write(dataNodeStatsMetrics)
default:
w.WriteHeader(http.StatusNotFound)
}
}))
ls := New()
ls.URL = srv.URL
require.NoError(t, ls.Init())
return ls, srv.Close
}
func caseInvalidDataResponse(t *testing.T) (*Logstash, func()) {
t.Helper()
srv := httptest.NewServer(http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
_, _ = w.Write([]byte("hello and\n goodbye"))
}))
ls := New()
ls.URL = srv.URL
require.NoError(t, ls.Init())
return ls, srv.Close
}
func caseConnectionRefused(t *testing.T) (*Logstash, func()) {
t.Helper()
ls := New()
ls.URL = "http://127.0.0.1:65001"
require.NoError(t, ls.Init())
return ls, func() {}
}
func case404(t *testing.T) (*Logstash, func()) {
t.Helper()
srv := httptest.NewServer(http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusNotFound)
}))
ls := New()
ls.URL = srv.URL
require.NoError(t, ls.Init())
return ls, srv.Close
}
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