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// Copyright 2020 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package procfs
import (
"testing"
)
func TestNetStat(t *testing.T) {
const (
filesCount = 2
CPUsCount = 2
arpCacheMetricsCount = 13
ndiscCacheMetricsCount = 13
)
fs, err := NewFS(procTestFixtures)
if err != nil {
t.Fatalf("failed to open procfs: %v", err)
}
netStats, err := fs.NetStat()
if err != nil {
t.Fatalf("NetStat() error: %s", err)
}
if len(netStats) != filesCount {
t.Fatalf("unexpected number of files parsed %d, expected %d", len(netStats), filesCount)
}
expectedStats := [2]NetStat{
{
Filename: "arp_cache",
Stats: make(map[string][]uint64),
},
{
Filename: "ndisc_cache",
Stats: make(map[string][]uint64),
},
}
for _, expected := range expectedStats {
if expected.Filename == "arp_cache" {
expected.Stats["entries"] = []uint64{20, 20}
expected.Stats["allocs"] = []uint64{1, 13}
expected.Stats["destroys"] = []uint64{2, 14}
expected.Stats["hash_grows"] = []uint64{3, 15}
expected.Stats["lookups"] = []uint64{4, 16}
expected.Stats["hits"] = []uint64{5, 17}
expected.Stats["res_failed"] = []uint64{6, 18}
expected.Stats["rcv_probes_mcast"] = []uint64{7, 19}
expected.Stats["rcv_probes_ucast"] = []uint64{8, 20}
expected.Stats["periodic_gc_runs"] = []uint64{9, 21}
expected.Stats["forced_gc_runs"] = []uint64{10, 22}
expected.Stats["unresolved_discards"] = []uint64{11, 23}
expected.Stats["table_fulls"] = []uint64{12, 24}
}
if expected.Filename == "ndisc_cache" {
expected.Stats["entries"] = []uint64{36, 36}
expected.Stats["allocs"] = []uint64{240, 252}
expected.Stats["destroys"] = []uint64{241, 253}
expected.Stats["hash_grows"] = []uint64{242, 254}
expected.Stats["lookups"] = []uint64{243, 255}
expected.Stats["hits"] = []uint64{244, 256}
expected.Stats["res_failed"] = []uint64{245, 257}
expected.Stats["rcv_probes_mcast"] = []uint64{246, 258}
expected.Stats["rcv_probes_ucast"] = []uint64{247, 259}
expected.Stats["periodic_gc_runs"] = []uint64{248, 260}
expected.Stats["forced_gc_runs"] = []uint64{249, 261}
expected.Stats["unresolved_discards"] = []uint64{250, 262}
expected.Stats["table_fulls"] = []uint64{251, 263}
}
}
for _, netStatFile := range netStats {
if netStatFile.Filename == "arp_cache" && len(netStatFile.Stats) != arpCacheMetricsCount {
t.Fatalf("unexpected arp_cache metrics count %d, expected %d", len(netStatFile.Stats), arpCacheMetricsCount)
}
if netStatFile.Filename == "ndisc_cache" && len(netStatFile.Stats) != ndiscCacheMetricsCount {
t.Fatalf("unexpected ndisc_cache metrics count %d, expected %d", len(netStatFile.Stats), ndiscCacheMetricsCount)
}
for _, expected := range expectedStats {
for header, stats := range netStatFile.Stats {
if header == "" {
t.Fatalf("Found empty metric name")
}
if len(stats) != CPUsCount {
t.Fatalf("NetStat() parsed %d lines with metrics, expected %d", len(stats), CPUsCount)
}
if netStatFile.Filename == expected.Filename {
if expected.Stats[header] == nil {
t.Fatalf("unexpected metric header: %s", header)
}
for cpu, value := range netStatFile.Stats[header] {
if expected.Stats[header][cpu] != value {
t.Fatalf("unexpected value for %s for cpu %d in %s: %d, expected %d", header, cpu, netStatFile.Filename, value, expected.Stats[header][cpu])
}
}
}
}
}
}
}