telegraf/plugins/inputs/fluentd/fluentd_test.go

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package fluentd
import (
"fmt"
"net"
"net/http"
"net/http/httptest"
"net/url"
"testing"
"github.com/influxdata/telegraf/testutil"
"github.com/stretchr/testify/assert"
)
// sampleJSON from fluentd version '0.14.9'
const sampleJSON = `
{
"plugins": [
{
"plugin_id": "object:f48698",
"plugin_category": "input",
"type": "dummy",
"config": {
"@type": "dummy",
"@log_level": "info",
"tag": "stdout.page.node",
"rate": "",
"dummy": "{\"hello\":\"world_from_first_dummy\"}",
"auto_increment_key": "id1"
},
"output_plugin": false,
"retry_count": null
},
{
"plugin_id": "object:e27138",
"plugin_category": "input",
"type": "dummy",
"config": {
"@type": "dummy",
"@log_level": "info",
"tag": "stdout.superproject.supercontainer",
"rate": "",
"dummy": "{\"hello\":\"world_from_second_dummy\"}",
"auto_increment_key": "id1"
},
"output_plugin": false,
"retry_count": null
},
{
"plugin_id": "object:d74060",
"plugin_category": "input",
"type": "monitor_agent",
"config": {
"@type": "monitor_agent",
"@log_level": "error",
"bind": "0.0.0.0",
"port": "24220"
},
"output_plugin": false,
"retry_count": null
},
{
"plugin_id": "object:11a5e2c",
"plugin_category": "output",
"type": "stdout",
"config": {
"@type": "stdout"
},
"output_plugin": true,
"retry_count": 0
},
{
"plugin_id": "object:11237ec",
"plugin_category": "output",
"type": "s3",
"config": {
"@type": "s3",
"@log_level": "info",
"aws_key_id": "xxxxxx",
"aws_sec_key": "xxxxxx",
"s3_bucket": "bucket",
"s3_endpoint": "http://mock:4567",
"path": "logs/%Y%m%d_%H/${tag[1]}/",
"time_slice_format": "%M",
"s3_object_key_format": "%{path}%{time_slice}_%{hostname}_%{index}_%{hex_random}.%{file_extension}",
"store_as": "gzip"
},
"output_plugin": true,
"buffer_queue_length": 0,
"buffer_total_queued_size": 0,
"retry_count": 0
}
]
}
`
var (
zero float64
err error
pluginOutput []pluginData
expectedOutput = []pluginData{
// {"object:f48698", "dummy", "input", nil, nil, nil},
// {"object:e27138", "dummy", "input", nil, nil, nil},
// {"object:d74060", "monitor_agent", "input", nil, nil, nil},
{"object:11a5e2c", "stdout", "output", (*float64)(&zero), nil, nil},
{"object:11237ec", "s3", "output", (*float64)(&zero), (*float64)(&zero), (*float64)(&zero)},
}
fluentdTest = &Fluentd{
Endpoint: "http://localhost:8081",
}
)
func Test_parse(t *testing.T) {
t.Log("Testing parser function")
_, err := parse([]byte(sampleJSON))
if err != nil {
t.Error(err)
}
}
func Test_Gather(t *testing.T) {
t.Logf("Start HTTP mock (%s) with sampleJSON", fluentdTest.Endpoint)
ts := httptest.NewUnstartedServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, "%s", string(sampleJSON))
}))
requestURL, err := url.Parse(fluentdTest.Endpoint)
ts.Listener, _ = net.Listen("tcp", fmt.Sprintf("%s:%s", requestURL.Hostname(), requestURL.Port()))
ts.Start()
defer ts.Close()
var acc testutil.Accumulator
err = fluentdTest.Gather(&acc)
if err != nil {
t.Error(err)
}
if !acc.HasMeasurement("fluentd") {
t.Errorf("acc.HasMeasurement: expected fluentd")
}
assert.Equal(t, expectedOutput[0].PluginID, acc.Metrics[0].Tags["plugin_id"])
assert.Equal(t, expectedOutput[0].PluginType, acc.Metrics[0].Tags["plugin_type"])
assert.Equal(t, expectedOutput[0].PluginCategory, acc.Metrics[0].Tags["plugin_category"])
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assert.Equal(t, *expectedOutput[0].RetryCount, acc.Metrics[0].Fields["retry_count"])
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assert.Equal(t, expectedOutput[1].PluginID, acc.Metrics[1].Tags["plugin_id"])
assert.Equal(t, expectedOutput[1].PluginType, acc.Metrics[1].Tags["plugin_type"])
assert.Equal(t, expectedOutput[1].PluginCategory, acc.Metrics[1].Tags["plugin_category"])
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assert.Equal(t, *expectedOutput[1].RetryCount, acc.Metrics[1].Fields["retry_count"])
assert.Equal(t, *expectedOutput[1].BufferQueueLength, acc.Metrics[1].Fields["buffer_queue_length"])
assert.Equal(t, *expectedOutput[1].BufferTotalQueuedSize, acc.Metrics[1].Fields["buffer_total_queued_size"])
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}