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exporter_test.go
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package main
import (
"fmt"
"net/http"
"net/http/httptest"
"os"
"strings"
"testing"
"github.com/prometheus/client_golang/prometheus"
)
const (
overviewTestData = `{"management_version":"3.5.1","rates_mode":"basic","exchange_types":[{"name":"topic","description":"AMQP topic exchange, as per the AMQP specification","enabled":true},{"name":"fanout","description":"AMQP fanout exchange, as per the AMQP specification","enabled":true},{"name":"direct","description":"AMQP direct exchange, as per the AMQP specification","enabled":true},{"name":"headers","description":"AMQP headers exchange, as per the AMQP specification","enabled":true}],"rabbitmq_version":"3.5.1","cluster_name":"my-rabbit@ae74c041248b","erlang_version":"17.5","erlang_full_version":"Erlang/OTP 17 [erts-6.4] [source] [64-bit] [smp:2:2] [async-threads:30] [kernel-poll:true]","message_stats":{},"queue_totals":{"messages":48,"messages_details":{"rate":0.0},"messages_ready":48,"messages_ready_details":{"rate":0.0},"messages_unacknowledged":0,"messages_unacknowledged_details":{"rate":0.0}},"object_totals":{"consumers":0,"queues":4,"exchanges":8,"connections":0,"channels":0},"statistics_db_event_queue":0,"node":"my-rabbit@ae74c041248b","statistics_db_node":"my-rabbit@ae74c041248b","listeners":[{"node":"my-rabbit@ae74c041248b","protocol":"amqp","ip_address":"::","port":5672},{"node":"my-rabbit@ae74c041248b","protocol":"clustering","ip_address":"::","port":25672}],"contexts":[{"node":"my-rabbit@ae74c041248b","description":"RabbitMQ Management","path":"/","port":"15672"}]}`
queuesTestData = `[{"memory":16056,"message_stats":{"disk_writes":6,"disk_writes_details":{"rate":0.4},"publish":6,"publish_details":{"rate":0.4}},"messages":6,"messages_details":{"rate":0.4},"messages_ready":6,"messages_ready_details":{"rate":0.4},"messages_unacknowledged":0,"messages_unacknowledged_details":{"rate":0.0},"idle_since":"2015-07-07 19:02:19","consumer_utilisation":"","policy":"","exclusive_consumer_tag":"","consumers":0,"recoverable_slaves":"","state":"running","messages_ram":6,"messages_ready_ram":6,"messages_unacknowledged_ram":0,"messages_persistent":6,"message_bytes":30,"message_bytes_ready":30,"message_bytes_unacknowledged":0,"message_bytes_ram":30,"message_bytes_persistent":30,"disk_reads":0,"disk_writes":6,"backing_queue_status":{"q1":0,"q2":0,"delta":["delta","undefined",0,"undefined"],"q3":0,"q4":6,"len":6,"target_ram_count":"infinity","next_seq_id":6,"avg_ingress_rate":0.007658533940556533,"avg_egress_rate":0.0,"avg_ack_ingress_rate":0.0,"avg_ack_egress_rate":0.0},"name":"myQueue1","vhost":"/","durable":true,"auto_delete":false,"arguments":{},"node":"my-rabbit@ae74c041248b"},{"memory":55344,"message_stats":{"disk_reads":25,"disk_reads_details":{"rate":0.0}},"messages":25,"messages_details":{"rate":0.0},"messages_ready":25,"messages_ready_details":{"rate":0.0},"messages_unacknowledged":0,"messages_unacknowledged_details":{"rate":0.0},"idle_since":"2015-07-07 18:57:52","consumer_utilisation":"","policy":"ha-2","exclusive_consumer_tag":"","consumers":0,"recoverable_slaves":"","state":"running","messages_ram":25,"messages_ready_ram":25,"messages_unacknowledged_ram":0,"messages_persistent":25,"message_bytes":75,"message_bytes_ready":75,"message_bytes_unacknowledged":0,"message_bytes_ram":75,"message_bytes_persistent":75,"disk_reads":25,"disk_writes":0,"backing_queue_status":{"q1":0,"q2":0,"delta":["delta","undefined",0,"undefined"],"q3":24,"q4":1,"len":25,"target_ram_count":"infinity","next_seq_id":16384,"avg_ingress_rate":0.0,"avg_egress_rate":0.0,"avg_ack_ingress_rate":0.0,"avg_ack_egress_rate":0.0},"name":"myQueue2","vhost":"/","durable":true,"auto_delete":false,"arguments":{},"node":"my-rabbit@ae74c041248b"},{"memory":34648,"message_stats":{"disk_reads":23,"disk_reads_details":{"rate":0.0}},"messages":23,"messages_details":{"rate":0.0},"messages_ready":23,"messages_ready_details":{"rate":0.0},"messages_unacknowledged":0,"messages_unacknowledged_details":{"rate":0.0},"idle_since":"2015-07-07 18:57:52","consumer_utilisation":"","policy":"","exclusive_consumer_tag":"","consumers":0,"recoverable_slaves":"","state":"running","messages_ram":23,"messages_ready_ram":23,"messages_unacknowledged_ram":0,"messages_persistent":23,"message_bytes":207,"message_bytes_ready":207,"message_bytes_unacknowledged":0,"message_bytes_ram":207,"message_bytes_persistent":207,"disk_reads":23,"disk_writes":0,"backing_queue_status":{"q1":0,"q2":0,"delta":["delta","undefined",0,"undefined"],"q3":22,"q4":1,"len":23,"target_ram_count":"infinity","next_seq_id":16384,"avg_ingress_rate":0.0,"avg_egress_rate":0.0,"avg_ack_ingress_rate":0.0,"avg_ack_egress_rate":0.0},"name":"myQueue3","vhost":"/","durable":true,"auto_delete":false,"arguments":{},"node":"my-rabbit@ae74c041248b"},{"memory":13912,"messages":0,"messages_details":{"rate":0.0},"messages_ready":0,"messages_ready_details":{"rate":0.0},"messages_unacknowledged":0,"messages_unacknowledged_details":{"rate":0.0},"idle_since":"2015-07-07 18:57:52","consumer_utilisation":"","policy":"","exclusive_consumer_tag":"","consumers":0,"recoverable_slaves":"","state":"running","messages_ram":0,"messages_ready_ram":0,"messages_unacknowledged_ram":0,"messages_persistent":0,"message_bytes":0,"message_bytes_ready":0,"message_bytes_unacknowledged":0,"message_bytes_ram":0,"message_bytes_persistent":0,"disk_reads":0,"disk_writes":0,"backing_queue_status":{"q1":0,"q2":0,"delta":["delta","undefined",0,"undefined"],"q3":0,"q4":0,"len":0,"target_ram_count":"infinity","next_seq_id":0,"avg_ingress_rate":0.0,"avg_egress_rate":0.0,"avg_ack_ingress_rate":0.0,"avg_ack_egress_rate":0.0},"name":"myQueue4","vhost":"vhost4","durable":true,"auto_delete":false,"arguments":{},"node":"my-rabbit@ae74c041248b"}]`
exchangeAPIResponse = `[{"name":"","vhost":"/","type":"direct","durable":true,"auto_delete":false,"internal":false,"arguments":{}},{"name":"amq.direct","vhost":"/","type":"direct","durable":true,"auto_delete":false,"internal":false,"arguments":{}},{"name":"amq.fanout","vhost":"/","type":"fanout","durable":true,"auto_delete":false,"internal":false,"arguments":{}},{"name":"amq.headers","vhost":"/","type":"headers","durable":true,"auto_delete":false,"internal":false,"arguments":{}},{"name":"amq.match","vhost":"/","type":"headers","durable":true,"auto_delete":false,"internal":false,"arguments":{}},{"name":"amq.rabbitmq.log","vhost":"/","type":"topic","durable":true,"auto_delete":false,"internal":true,"arguments":{}},{"name":"amq.rabbitmq.trace","vhost":"/","type":"topic","durable":true,"auto_delete":false,"internal":true,"arguments":{}},{"name":"amq.topic","vhost":"/","type":"topic","durable":true,"auto_delete":false,"internal":false,"arguments":{}},{"message_stats":{"publish":0,"publish_details":{"rate":0.0},"publish_in":5,"publish_in_details":{"rate":0.0},"publish_out":0,"publish_out_details":{"rate":0.0},"ack":0,"ack_details":{"rate":0.0},"deliver_get":0,"deliver_get_details":{"rate":0.0},"confirm":5,"confirm_details":{"rate":0.0},"return_unroutable":5,"return_unroutable_details":{"rate":0.0},"redeliver":0,"redeliver_details":{"rate":0.0}},"name":"myExchange","vhost":"/","type":"fanout","durable":true,"auto_delete":false,"internal":false,"arguments":{}}]`
nodesAPIResponse = `[{"mem_used":150456032,"mem_used_details":{"rate":25176},"fd_used":55,"fd_used_details":{"rate":0},"sockets_used":0,"sockets_used_details":{"rate":0},"proc_used":226,"proc_used_details":{"rate":0},"disk_free":189045161984,"disk_free_details":{"rate":0},"partitions":["rabbit@ribbit-0","rabbit@ribbit-1","rabbit@ribbit-3","rabbit@ribbit-4"],"os_pid":"113","fd_total":1048576,"sockets_total":943626,"mem_limit":838395494,"mem_alarm":false,"disk_free_limit":50000000,"disk_free_alarm":false,"proc_total":1048576,"rates_mode":"basic","uptime":3772165,"run_queue":0,"processors":4,"name":"my-rabbit@5a00cd8fe2f4","type":"disc","running":true}]`
connectionAPIResponse = `[{"auth_mechanism": "PLAIN","channel_max": 65535,"channels": 1,"client_properties": {"copyright": "Copyright (c) 2007-2014 VMWare Inc, Tony Garnock-Jones, and Alan Antonuk.","information": "See https://github.com/alanxz/rabbitmq-c","platform": "linux-gn","product": "rabbitmq-c","version": "0.5.3-pre"},"connected_at": 1501868641834,"frame_max": 131072,"garbage_collection": {"fullsweep_after": 65535,"min_bin_vheap_size": 46422,"min_heap_size": 233,"minor_gcs": 3},"host": "172.31.15.10","name": "172.31.0.130:32769 -> 172.31.15.10:5672","node": "rabbit@rmq-cluster-node-04","peer_cert_issuer": null,"peer_cert_subject": null,"peer_cert_validity": null,"peer_host": "172.31.0.130","peer_port": 32769,"port": 5672,"protocol": "AMQP 0-9-1","recv_cnt": 22708,"recv_oct": 8905713,"recv_oct_details": {"rate": 169.6},"reductions": 6257210,"reductions_details": {"rate": 148.8},"send_cnt": 6,"send_oct": 573,"send_oct_details": {"rate": 0.0},"send_pend": 0,"ssl": false,"ssl_cipher": null,"ssl_hash": null,"ssl_key_exchange": null,"ssl_protocol": null,"state": "running","timeout": 0,"type": "network","user": "rmq_oms","vhost": "/"},{"auth_mechanism": "PLAIN","channel_max": 65535,"channels": 1,"client_properties": {"copyright": "Copyright (c) 2007-2014 VMWare Inc, Tony Garnock-Jones, and Alan Antonuk.","information": "See https://github.com/alanxz/rabbitmq-c","platform": "linux-gn","product": "rabbitmq-c","version": "0.5.3-pre"},"connected_at": 1501868641834,"frame_max": 131072,"garbage_collection": {"fullsweep_after": 65535,"min_bin_vheap_size": 46422,"min_heap_size": 233,"minor_gcs": 3},"host": "172.31.15.10","name": "172.31.0.130:32769 -> 172.31.15.10:5672","node": "rabbit@rmq-cluster-node-04","peer_cert_issuer": null,"peer_cert_subject": null,"peer_cert_validity": null,"peer_host": "172.31.0.130","peer_port": 32769,"port": 5672,"protocol": "AMQP 0-9-1","recv_cnt": 22708,"recv_oct": 8905713,"recv_oct_details": {"rate": 169.6},"reductions": 6257210,"reductions_details": {"rate": 148.8},"send_cnt": 6,"send_oct": 573,"send_oct_details": {"rate": 0.0},"send_pend": 0,"ssl": false,"ssl_cipher": null,"ssl_hash": null,"ssl_key_exchange": null,"ssl_protocol": null,"state": "running","timeout": 0,"type": "network","user": "rmq_oms","vhost": "/"}]`
)
func expectSubstring(t *testing.T, body string, substr string) {
t.Helper()
if !strings.Contains(body, substr) {
t.Errorf("Substring expected but not found. Substr=%v", substr)
}
}
func dontExpectSubstring(t *testing.T, body string, substr string) {
t.Helper()
if strings.Contains(body, substr) {
t.Errorf("Substring not expected but found. Substr=%v", substr)
}
}
func TestWholeApp(t *testing.T) {
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
if r.RequestURI == "/api/overview" {
fmt.Fprintln(w, overviewTestData)
} else if r.RequestURI == "/api/queues" {
fmt.Fprintln(w, queuesTestData)
} else if r.RequestURI == "/api/exchanges" {
fmt.Fprintln(w, exchangeAPIResponse)
} else if r.RequestURI == "/api/nodes" {
fmt.Fprintln(w, nodesAPIResponse)
} else if r.RequestURI == "/api/connections" {
fmt.Fprintln(w, connectionAPIResponse)
} else {
t.Errorf("Invalid request. URI=%v", r.RequestURI)
fmt.Fprintf(w, "Invalid request. URI=%v", r.RequestURI)
}
}))
defer server.Close()
os.Setenv("RABBIT_URL", server.URL)
defer os.Unsetenv("RABBIT_URL")
os.Setenv("SKIP_QUEUES", "^.*3$")
defer os.Unsetenv("SKIP_QUEUES")
initConfig()
exporter := newExporter()
prometheus.MustRegister(exporter)
defer prometheus.Unregister(exporter)
req, _ := http.NewRequest("GET", "", nil)
w := httptest.NewRecorder()
prometheus.Handler().ServeHTTP(w, req)
if w.Code != http.StatusOK {
t.Errorf("Home page didn't return %v", http.StatusOK)
}
body := w.Body.String()
t.Log(body)
expectSubstring(t, body, `rabbitmq_up 1`)
// overview
expectSubstring(t, body, `rabbitmq_exchangesTotal 8`)
expectSubstring(t, body, `rabbitmq_queuesTotal 4`)
expectSubstring(t, body, `rabbitmq_queue_messages_total 48`)
expectSubstring(t, body, `rabbitmq_queue_messages_ready_total 48`)
expectSubstring(t, body, `rabbitmq_queue_messages_unacknowledged_total 0`)
// node
expectSubstring(t, body, `rabbitmq_running{node="my-rabbit@5a00cd8fe2f4"} 1`)
expectSubstring(t, body, `rabbitmq_partitions{node="my-rabbit@5a00cd8fe2f4"} 4`)
// queue
expectSubstring(t, body, `rabbitmq_queue_messages_ready{durable="true",policy="ha-2",queue="myQueue2",vhost="/"} 25`)
expectSubstring(t, body, `rabbitmq_queue_memory{durable="true",policy="",queue="myQueue4",vhost="vhost4"} 13912`)
expectSubstring(t, body, `rabbitmq_queue_messages_published_total{durable="true",policy="",queue="myQueue1",vhost="/"} 6`)
expectSubstring(t, body, `rabbitmq_queue_disk_writes{durable="true",policy="",queue="myQueue1",vhost="/"} 6`)
expectSubstring(t, body, `rabbitmq_queue_messages_delivered_total{durable="true",policy="",queue="myQueue1",vhost="/"} 0`)
// exchange
expectSubstring(t, body, `rabbitmq_exchange_messages_published_in_total{exchange="myExchange",vhost="/"} 5`)
// connection
dontExpectSubstring(t, body, `rabbitmq_connection_channels{node="rabbit@rmq-cluster-node-04",peer_host="172.31.0.130",user="rmq_oms",vhost="/"} 2`)
dontExpectSubstring(t, body, `rabbitmq_connection_received_packets{node="rabbit@rmq-cluster-node-04",peer_host="172.31.0.130",user="rmq_oms",vhost="/"} 45416`)
}
func TestWholeAppInverted(t *testing.T) {
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
w.Header().Set("Content-Type", "application/json")
if r.RequestURI == "/api/overview" {
fmt.Fprintln(w, overviewTestData)
} else if r.RequestURI == "/api/queues" {
fmt.Fprintln(w, queuesTestData)
} else if r.RequestURI == "/api/exchanges" {
fmt.Fprintln(w, exchangeAPIResponse)
} else if r.RequestURI == "/api/nodes" {
fmt.Fprintln(w, nodesAPIResponse)
} else if r.RequestURI == "/api/connections" {
fmt.Fprintln(w, connectionAPIResponse)
} else {
t.Errorf("Invalid request. URI=%v", r.RequestURI)
fmt.Fprintf(w, "Invalid request. URI=%v", r.RequestURI)
}
}))
defer server.Close()
os.Setenv("RABBIT_URL", server.URL)
os.Setenv("SKIP_QUEUES", "^.*3$")
initConfig()
config.EnabledExporters = []string{"connections"}
exporter := newExporter()
prometheus.MustRegister(exporter)
defer prometheus.Unregister(exporter)
req, _ := http.NewRequest("GET", "", nil)
w := httptest.NewRecorder()
prometheus.Handler().ServeHTTP(w, req)
if w.Code != http.StatusOK {
t.Errorf("Home page didn't return %v", http.StatusOK)
}
body := w.Body.String()
expectSubstring(t, body, `rabbitmq_up 1`)
// overview
dontExpectSubstring(t, body, `rabbitmq_exchangesTotal 8`)
dontExpectSubstring(t, body, `rabbitmq_queuesTotal 4`)
dontExpectSubstring(t, body, `rabbitmq_queue_messages_total 48`)
dontExpectSubstring(t, body, `rabbitmq_queue_messages_ready_total 48`)
dontExpectSubstring(t, body, `rabbitmq_queue_messages_unacknowledged_total 0`)
// node
dontExpectSubstring(t, body, `rabbitmq_running{node="my-rabbit@5a00cd8fe2f4"} 1`)
dontExpectSubstring(t, body, `rabbitmq_partitions{node="my-rabbit@5a00cd8fe2f4"} 4`)
// queue
dontExpectSubstring(t, body, `rabbitmq_queue_messages_ready{durable="true",policy="ha-2",queue="myQueue2",vhost="/"} 25`)
dontExpectSubstring(t, body, `rabbitmq_queue_memory{durable="true",policy="",queue="myQueue4",vhost="vhost4"} 13912`)
dontExpectSubstring(t, body, `rabbitmq_queue_messages_published_total{durable="true",policy="",queue="myQueue1",vhost="/"} 6`)
dontExpectSubstring(t, body, `rabbitmq_queue_disk_writes{durable="true",policy="",queue="myQueue1",vhost="/"} 6`)
dontExpectSubstring(t, body, `rabbitmq_queue_messages_delivered_total{durable="true",policy="",queue="myQueue1",vhost="/"} 0`)
// exchange
dontExpectSubstring(t, body, `rabbitmq_exchange_messages_published_in_total{exchange="myExchange",vhost="/"} 5`)
// connection
expectSubstring(t, body, `rabbitmq_connection_channels{node="rabbit@rmq-cluster-node-04",peer_host="172.31.0.130",user="rmq_oms",vhost="/"} 2`)
expectSubstring(t, body, `rabbitmq_connection_received_packets{node="rabbit@rmq-cluster-node-04",peer_host="172.31.0.130",user="rmq_oms",vhost="/"} 45416`)
}
func TestRabbitError(t *testing.T) {
server := createTestserver(500, http.StatusText(500))
defer server.Close()
os.Setenv("RABBIT_URL", server.URL)
initConfig()
exporter := newExporter()
prometheus.MustRegister(exporter)
defer prometheus.Unregister(exporter)
req, _ := http.NewRequest("GET", "", nil)
w := httptest.NewRecorder()
prometheus.Handler().ServeHTTP(w, req)
if w.Code != http.StatusOK {
t.Errorf("Home page didn't return %v", http.StatusOK)
}
body := w.Body.String()
// fmt.Println(body)
expectSubstring(t, body, `rabbitmq_up 0`)
if strings.Contains(body, "rabbitmq_channelsTotal") {
t.Errorf("Metric 'rabbitmq_channelsTotal' unexpected as the server did not respond")
}
}