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// SPDX-License-Identifier: BSD-3-Clause
//go:build linux
package mem
import (
"context"
"path/filepath"
"reflect"
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestExVirtualMemory(t *testing.T) {
ex := NewExLinux()
v, err := ex.VirtualMemory()
if err != nil {
t.Error(err)
}
t.Log(v)
}
var virtualMemoryTests = []struct {
mockedRootFS string
stat *VirtualMemoryStat
}{
{
"intelcorei5", &VirtualMemoryStat{
Total: 16502300672,
Available: 11495358464,
Used: 3437277184,
UsedPercent: 20.82907863769651,
Free: 8783491072,
Active: 4347392000,
Inactive: 2938834944,
Wired: 0,
Laundry: 0,
Buffers: 212496384,
Cached: 4069036032,
WriteBack: 0,
Dirty: 176128,
WriteBackTmp: 0,
Shared: 1222402048,
Slab: 253771776,
Sreclaimable: 186470400,
Sunreclaim: 67301376,
PageTables: 65241088,
SwapCached: 0,
CommitLimit: 16509730816,
CommittedAS: 12360818688,
HighTotal: 0,
HighFree: 0,
LowTotal: 0,
LowFree: 0,
SwapTotal: 8258580480,
SwapFree: 8258580480,
Mapped: 1172627456,
VmallocTotal: 35184372087808,
VmallocUsed: 0,
VmallocChunk: 0,
HugePagesTotal: 0,
HugePagesFree: 0,
HugePagesRsvd: 0,
HugePagesSurp: 0,
HugePageSize: 2097152,
},
},
{
"issue1002", &VirtualMemoryStat{
Total: 260579328,
Available: 215199744,
Used: 34328576,
UsedPercent: 13.173944481121694,
Free: 124506112,
Active: 108785664,
Inactive: 8581120,
Wired: 0,
Laundry: 0,
Buffers: 4915200,
Cached: 96829440,
WriteBack: 0,
Dirty: 0,
WriteBackTmp: 0,
Shared: 0,
Slab: 9293824,
Sreclaimable: 2764800,
Sunreclaim: 6529024,
PageTables: 405504,
SwapCached: 0,
CommitLimit: 130289664,
CommittedAS: 25567232,
HighTotal: 134217728,
HighFree: 67784704,
LowTotal: 126361600,
LowFree: 56721408,
SwapTotal: 0,
SwapFree: 0,
Mapped: 38793216,
VmallocTotal: 1996488704,
VmallocUsed: 0,
VmallocChunk: 0,
HugePagesTotal: 0,
HugePagesFree: 0,
HugePagesRsvd: 0,
HugePagesSurp: 0,
HugePageSize: 0,
},
},
{
"anonhugepages", &VirtualMemoryStat{
Total: 260799420 * 1024,
Available: 127880216 * 1024,
Free: 119443248 * 1024,
AnonHugePages: 50409472 * 1024,
Used: 144748720128,
UsedPercent: 54.20110673559013,
},
},
}
func TestVirtualMemoryLinux(t *testing.T) {
for _, tt := range virtualMemoryTests {
t.Run(tt.mockedRootFS, func(t *testing.T) {
t.Setenv("HOST_PROC", filepath.Join("testdata/linux/virtualmemory/", tt.mockedRootFS, "proc"))
stat, err := VirtualMemory()
skipIfNotImplementedErr(t, err)
if err != nil {
t.Errorf("error %v", err)
}
if !reflect.DeepEqual(stat, tt.stat) {
t.Errorf("got: %+v\nwant: %+v", stat, tt.stat)
}
})
}
}
const validFile = `Filename Type Size Used Priority
/dev/dm-2 partition 67022844 490788 -2
/swapfile file 2 1 -3
`
const invalidFile = `INVALID Type Size Used Priority
/dev/dm-2 partition 67022844 490788 -2
/swapfile file 1048572 0 -3
`
func TestParseSwapsFile_ValidFile(t *testing.T) {
stats, err := parseSwapsFile(context.Background(), strings.NewReader(validFile))
require.NoError(t, err)
assert.Equal(t, SwapDevice{
Name: "/dev/dm-2",
UsedBytes: 502566912,
FreeBytes: 68128825344,
}, *stats[0])
assert.Equal(t, SwapDevice{
Name: "/swapfile",
UsedBytes: 1024,
FreeBytes: 1024,
}, *stats[1])
}
func TestParseSwapsFile_InvalidFile(t *testing.T) {
_, err := parseSwapsFile(context.Background(), strings.NewReader(invalidFile))
assert.Error(t, err)
}
func TestParseSwapsFile_EmptyFile(t *testing.T) {
_, err := parseSwapsFile(context.Background(), strings.NewReader(""))
assert.Error(t, err)
}
|
