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// Copyright 2015 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.
//go:build !nofilesystem
// +build !nofilesystem
package collector
import (
"io"
"log/slog"
"strings"
"testing"
"gopkg.in/alecthomas/kingpin.v2"
)
func Test_parseFilesystemLabelsError(t *testing.T) {
tests := []struct {
name string
in string
}{
{
name: "too few fields",
in: "hello world",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if _, err := parseFilesystemLabels(strings.NewReader(tt.in)); err == nil {
t.Fatal("expected an error, but none occurred")
}
})
}
}
func TestMountPointDetails(t *testing.T) {
if _, err := kingpin.CommandLine.Parse([]string{"--path.procfs", "./fixtures/proc"}); err != nil {
t.Fatal(err)
}
expected := map[string]string{
"/": "",
"/sys": "",
"/proc": "",
"/dev": "",
"/dev/pts": "",
"/run": "",
"/sys/kernel/security": "",
"/dev/shm": "",
"/run/lock": "",
"/sys/fs/cgroup": "",
"/sys/fs/cgroup/systemd": "",
"/sys/fs/pstore": "",
"/sys/fs/cgroup/cpuset": "",
"/sys/fs/cgroup/cpu,cpuacct": "",
"/sys/fs/cgroup/devices": "",
"/sys/fs/cgroup/freezer": "",
"/sys/fs/cgroup/net_cls,net_prio": "",
"/sys/fs/cgroup/blkio": "",
"/sys/fs/cgroup/perf_event": "",
"/proc/sys/fs/binfmt_misc": "",
"/dev/mqueue": "",
"/sys/kernel/debug": "",
"/dev/hugepages": "",
"/sys/fs/fuse/connections": "",
"/boot": "",
"/run/rpc_pipefs": "",
"/run/user/1000": "",
"/run/user/1000/gvfs": "",
"/var/lib/kubelet/plugins/kubernetes.io/vsphere-volume/mounts/[vsanDatastore] bafb9e5a-8856-7e6c-699c-801844e77a4a/kubernetes-dynamic-pvc-3eba5bba-48a3-11e8-89ab-005056b92113.vmdk": "",
"/var/lib/kubelet/plugins/kubernetes.io/vsphere-volume/mounts/[vsanDatastore] bafb9e5a-8856-7e6c-699c-801844e77a4a/kubernetes-dynamic-pvc-3eba5bba-48a3-11e8-89ab-005056b92113.vmdk": "",
}
filesystems, err := mountPointDetails(slog.New(slog.NewTextHandler(io.Discard, nil)))
if err != nil {
t.Log(err)
}
foundSet := map[string]bool{}
for _, fs := range filesystems {
if _, ok := expected[fs.mountPoint]; !ok {
t.Errorf("Got unexpected %s", fs.mountPoint)
}
foundSet[fs.mountPoint] = true
}
for mountPoint := range expected {
if _, ok := foundSet[mountPoint]; !ok {
t.Errorf("Expected %s, got nothing", mountPoint)
}
}
}
func TestMountsFallback(t *testing.T) {
if _, err := kingpin.CommandLine.Parse([]string{"--path.procfs", "./fixtures_hidepid/proc"}); err != nil {
t.Fatal(err)
}
expected := map[string]string{
"/": "",
}
filesystems, err := mountPointDetails(slog.New(slog.NewTextHandler(io.Discard, nil)))
if err != nil {
t.Log(err)
}
for _, fs := range filesystems {
if _, ok := expected[fs.mountPoint]; !ok {
t.Errorf("Got unexpected %s", fs.mountPoint)
}
}
}
func TestPathRootfs(t *testing.T) {
if _, err := kingpin.CommandLine.Parse([]string{"--path.procfs", "./fixtures_bindmount/proc", "--path.rootfs", "/host"}); err != nil {
t.Fatal(err)
}
expected := map[string]string{
// should modify these mountpoints (removes /host, see fixture proc file)
"/": "",
"/media/volume1": "",
"/media/volume2": "",
// should not modify these mountpoints
"/dev/shm": "",
"/run/lock": "",
"/sys/fs/cgroup": "",
}
filesystems, err := mountPointDetails(slog.New(slog.NewTextHandler(io.Discard, nil)))
if err != nil {
t.Log(err)
}
for _, fs := range filesystems {
if _, ok := expected[fs.mountPoint]; !ok {
t.Errorf("Got unexpected %s", fs.mountPoint)
}
}
}
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