telegraf/plugins/inputs/jolokia/jolokia_test.go

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package jolokia
import (
_ "fmt"
"io/ioutil"
"net/http"
"strings"
"testing"
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"github.com/influxdata/telegraf/testutil"
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"github.com/stretchr/testify/assert"
_ "github.com/stretchr/testify/require"
)
const validThreeLevelMultiValueJSON = `
[
{
"request":{
"mbean":"java.lang:type=*",
"type":"read"
},
"value":{
"java.lang:type=Memory":{
"ObjectPendingFinalizationCount":0,
"Verbose":false,
"HeapMemoryUsage":{
"init":134217728,
"committed":173015040,
"max":1908932608,
"used":16840016
},
"NonHeapMemoryUsage":{
"init":2555904,
"committed":51380224,
"max":-1,
"used":49944048
},
"ObjectName":{
"objectName":"java.lang:type=Memory"
}
}
},
"timestamp":1446129191,
"status":200
}
]`
const validBulkResponseJSON = `
[
{
"request":{
"mbean":"java.lang:type=Memory",
"attribute":"HeapMemoryUsage",
"type":"read"
},
"value":{
"init":67108864,
"committed":456130560,
"max":477626368,
"used":203288528
},
"timestamp":1446129191,
"status":200
},
{
"request":{
"mbean":"java.lang:type=Memory",
"attribute":"NonHeapMemoryUsage",
"type":"read"
},
"value":{
"init":2555904,
"committed":51380224,
"max":-1,
"used":49944048
},
"timestamp":1446129191,
"status":200
}
]`
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const validMultiValueJSON = `
[
{
"request":{
"mbean":"java.lang:type=Memory",
"attribute":"HeapMemoryUsage",
"type":"read"
},
"value":{
"init":67108864,
"committed":456130560,
"max":477626368,
"used":203288528
},
"timestamp":1446129191,
"status":200
}
]`
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const validSingleValueJSON = `
[
{
"request":{
"path":"used",
"mbean":"java.lang:type=Memory",
"attribute":"HeapMemoryUsage",
"type":"read"
},
"value":209274376,
"timestamp":1446129256,
"status":200
}
]`
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const invalidJSON = "I don't think this is JSON"
const empty = ""
var Servers = []Server{Server{Name: "as1", Host: "127.0.0.1", Port: "8080"}}
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var HeapMetric = Metric{Name: "heap_memory_usage",
Mbean: "java.lang:type=Memory", Attribute: "HeapMemoryUsage"}
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var UsedHeapMetric = Metric{Name: "heap_memory_usage",
Mbean: "java.lang:type=Memory", Attribute: "HeapMemoryUsage"}
var NonHeapMetric = Metric{Name: "non_heap_memory_usage",
Mbean: "java.lang:type=Memory", Attribute: "NonHeapMemoryUsage"}
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type jolokiaClientStub struct {
responseBody string
statusCode int
}
func (c jolokiaClientStub) MakeRequest(req *http.Request) (*http.Response, error) {
resp := http.Response{}
resp.StatusCode = c.statusCode
resp.Body = ioutil.NopCloser(strings.NewReader(c.responseBody))
return &resp, nil
}
// Generates a pointer to an HttpJson object that uses a mock HTTP client.
// Parameters:
// response : Body of the response that the mock HTTP client should return
// statusCode: HTTP status code the mock HTTP client should return
//
// Returns:
// *HttpJson: Pointer to an HttpJson object that uses the generated mock HTTP client
func genJolokiaClientStub(response string, statusCode int, servers []Server, metrics []Metric) *Jolokia {
return &Jolokia{
jClient: jolokiaClientStub{responseBody: response, statusCode: statusCode},
Servers: servers,
Metrics: metrics,
Delimiter: "_",
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}
}
// Test that the proper values are ignored or collected
func TestHttpJsonMultiValue(t *testing.T) {
jolokia := genJolokiaClientStub(validMultiValueJSON, 200, Servers, []Metric{HeapMetric})
var acc testutil.Accumulator
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err := acc.GatherError(jolokia.Gather)
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assert.Nil(t, err)
assert.Equal(t, 1, len(acc.Metrics))
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fields := map[string]interface{}{
"heap_memory_usage_init": 67108864.0,
"heap_memory_usage_committed": 456130560.0,
"heap_memory_usage_max": 477626368.0,
"heap_memory_usage_used": 203288528.0,
}
tags := map[string]string{
"jolokia_host": "127.0.0.1",
"jolokia_port": "8080",
"jolokia_name": "as1",
}
acc.AssertContainsTaggedFields(t, "jolokia", fields, tags)
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}
// Test that bulk responses are handled
func TestHttpJsonBulkResponse(t *testing.T) {
jolokia := genJolokiaClientStub(validBulkResponseJSON, 200, Servers, []Metric{HeapMetric, NonHeapMetric})
var acc testutil.Accumulator
err := jolokia.Gather(&acc)
assert.Nil(t, err)
assert.Equal(t, 1, len(acc.Metrics))
fields := map[string]interface{}{
"heap_memory_usage_init": 67108864.0,
"heap_memory_usage_committed": 456130560.0,
"heap_memory_usage_max": 477626368.0,
"heap_memory_usage_used": 203288528.0,
"non_heap_memory_usage_init": 2555904.0,
"non_heap_memory_usage_committed": 51380224.0,
"non_heap_memory_usage_max": -1.0,
"non_heap_memory_usage_used": 49944048.0,
}
tags := map[string]string{
"jolokia_host": "127.0.0.1",
"jolokia_port": "8080",
"jolokia_name": "as1",
}
acc.AssertContainsTaggedFields(t, "jolokia", fields, tags)
}
// Test that the proper values are ignored or collected
func TestHttpJsonThreeLevelMultiValue(t *testing.T) {
jolokia := genJolokiaClientStub(validThreeLevelMultiValueJSON, 200, Servers, []Metric{HeapMetric})
var acc testutil.Accumulator
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err := acc.GatherError(jolokia.Gather)
assert.Nil(t, err)
assert.Equal(t, 1, len(acc.Metrics))
fields := map[string]interface{}{
"heap_memory_usage_java.lang:type=Memory_ObjectPendingFinalizationCount": 0.0,
"heap_memory_usage_java.lang:type=Memory_Verbose": false,
"heap_memory_usage_java.lang:type=Memory_HeapMemoryUsage_init": 134217728.0,
"heap_memory_usage_java.lang:type=Memory_HeapMemoryUsage_max": 1908932608.0,
"heap_memory_usage_java.lang:type=Memory_HeapMemoryUsage_used": 16840016.0,
"heap_memory_usage_java.lang:type=Memory_HeapMemoryUsage_committed": 173015040.0,
"heap_memory_usage_java.lang:type=Memory_NonHeapMemoryUsage_init": 2555904.0,
"heap_memory_usage_java.lang:type=Memory_NonHeapMemoryUsage_committed": 51380224.0,
"heap_memory_usage_java.lang:type=Memory_NonHeapMemoryUsage_max": -1.0,
"heap_memory_usage_java.lang:type=Memory_NonHeapMemoryUsage_used": 49944048.0,
"heap_memory_usage_java.lang:type=Memory_ObjectName_objectName": "java.lang:type=Memory",
}
tags := map[string]string{
"jolokia_host": "127.0.0.1",
"jolokia_port": "8080",
"jolokia_name": "as1",
}
acc.AssertContainsTaggedFields(t, "jolokia", fields, tags)
}
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// Test that the proper values are ignored or collected
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func TestHttp404(t *testing.T) {
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jolokia := genJolokiaClientStub(invalidJSON, 404, Servers,
[]Metric{UsedHeapMetric})
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var acc testutil.Accumulator
acc.SetDebug(true)
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err := acc.GatherError(jolokia.Gather)
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assert.Error(t, err)
assert.Equal(t, 0, len(acc.Metrics))
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assert.Contains(t, err.Error(), "has status code 404")
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}
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// Test that the proper values are ignored or collected
func TestHttpInvalidJson(t *testing.T) {
jolokia := genJolokiaClientStub(invalidJSON, 200, Servers,
[]Metric{UsedHeapMetric})
var acc testutil.Accumulator
acc.SetDebug(true)
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err := acc.GatherError(jolokia.Gather)
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assert.Error(t, err)
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assert.Equal(t, 0, len(acc.Metrics))
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assert.Contains(t, err.Error(), "Error decoding JSON response")
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}