1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
// Copyright 2018 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.
// +build !noprocesses
package collector
import (
"github.com/go-kit/kit/log"
"testing"
"github.com/prometheus/procfs"
kingpin "gopkg.in/alecthomas/kingpin.v2"
)
func TestReadProcessStatus(t *testing.T) {
if _, err := kingpin.CommandLine.Parse([]string{"--path.procfs", "fixtures/proc"}); err != nil {
t.Fatal(err)
}
want := 1
fs, err := procfs.NewFS(*procPath)
if err != nil {
t.Errorf("failed to open procfs: %v", err)
}
c := processCollector{fs: fs, logger: log.NewNopLogger()}
pids, states, threads, err := c.getAllocatedThreads()
if err != nil {
t.Fatalf("Cannot retrieve data from procfs getAllocatedThreads function: %v ", err)
}
if threads < want {
t.Fatalf("Current threads: %d Shouldn't be less than wanted %d", threads, want)
}
if states == nil {
t.Fatalf("Process states cannot be nil %v:", states)
}
maxPid, err := readUintFromFile(procFilePath("sys/kernel/pid_max"))
if err != nil {
t.Fatalf("Unable to retrieve limit number of maximum pids alloved %v\n", err)
}
if uint64(pids) > maxPid || pids == 0 {
t.Fatalf("Total running pids cannot be greater than %d or equals to 0", maxPid)
}
}
|
