// Copyright 2019 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 !windows
package procfs
import (
"testing"
"github.com/google/go-cmp/cmp"
)
func newPInt64(i int64) *int64 {
return &i
}
func TestVM(t *testing.T) {
fs, err := NewFS(procTestFixtures)
if err != nil {
t.Fatal(err)
}
got, err := fs.VM()
if err != nil {
t.Fatal(err)
}
zeroPointer := newPInt64(0)
lowmemreserveratio := []*int64{newPInt64(256), newPInt64(256), newPInt64(32), zeroPointer, zeroPointer}
want := &VM{
AdminReserveKbytes: newPInt64(8192),
BlockDump: zeroPointer,
CompactUnevictableAllowed: newPInt64(1),
DirtyBackgroundBytes: zeroPointer,
DirtyBackgroundRatio: newPInt64(10),
DirtyBytes: zeroPointer,
DirtyExpireCentisecs: newPInt64(3000),
DirtyRatio: newPInt64(20),
DirtytimeExpireSeconds: newPInt64(43200),
DirtyWritebackCentisecs: newPInt64(500),
DropCaches: zeroPointer,
ExtfragThreshold: newPInt64(500),
HugetlbShmGroup: zeroPointer,
LaptopMode: newPInt64(5),
LegacyVaLayout: zeroPointer,
LowmemReserveRatio: lowmemreserveratio,
MaxMapCount: newPInt64(65530),
MemoryFailureEarlyKill: zeroPointer,
MemoryFailureRecovery: newPInt64(1),
MinFreeKbytes: newPInt64(67584),
MinSlabRatio: newPInt64(5),
MinUnmappedRatio: newPInt64(1),
MmapMinAddr: newPInt64(65536),
NumaStat: newPInt64(1),
NumaZonelistOrder: "Node",
NrHugepages: zeroPointer,
NrHugepagesMempolicy: zeroPointer,
NrOvercommitHugepages: zeroPointer,
OomDumpTasks: newPInt64(1),
OomKillAllocatingTask: zeroPointer,
OvercommitKbytes: zeroPointer,
OvercommitMemory: zeroPointer,
OvercommitRatio: newPInt64(50),
PageCluster: newPInt64(3),
PanicOnOom: zeroPointer,
PercpuPagelistFraction: zeroPointer,
StatInterval: newPInt64(1),
Swappiness: newPInt64(60),
UserReserveKbytes: newPInt64(131072),
VfsCachePressure: newPInt64(100),
WatermarkBoostFactor: newPInt64(15000),
WatermarkScaleFactor: newPInt64(10),
ZoneReclaimMode: zeroPointer,
}
if diff := cmp.Diff(want, got); diff != "" {
t.Fatalf("unexpected power supply class (-want +got):\n%s", diff)
}
}