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package sysinfo
import (
"errors"
"io/ioutil"
"os"
"path"
"path/filepath"
"testing"
"github.com/stretchr/testify/require"
"golang.org/x/sys/unix"
)
func TestReadProcBool(t *testing.T) {
tmpDir, err := ioutil.TempDir("", "test-sysinfo-proc")
require.NoError(t, err)
defer os.RemoveAll(tmpDir)
procFile := filepath.Join(tmpDir, "read-proc-bool")
err = ioutil.WriteFile(procFile, []byte("1"), 0o644)
require.NoError(t, err)
if !readProcBool(procFile) {
t.Fatal("expected proc bool to be true, got false")
}
if err := ioutil.WriteFile(procFile, []byte("0"), 0o644); err != nil {
t.Fatal(err)
}
if readProcBool(procFile) {
t.Fatal("expected proc bool to be false, got true")
}
if readProcBool(path.Join(tmpDir, "no-exist")) {
t.Fatal("should be false for non-existent entry")
}
}
func TestCgroupEnabled(t *testing.T) {
cgroupDir, err := ioutil.TempDir("", "cgroup-test")
require.NoError(t, err)
defer os.RemoveAll(cgroupDir)
if cgroupEnabled(cgroupDir, "test") {
t.Fatal("cgroupEnabled should be false")
}
err = ioutil.WriteFile(path.Join(cgroupDir, "test"), []byte{}, 0o644)
require.NoError(t, err)
if !cgroupEnabled(cgroupDir, "test") {
t.Fatal("cgroupEnabled should be true")
}
}
func TestNew(t *testing.T) {
sysInfo := New(false)
require.NotNil(t, sysInfo)
checkSysInfo(t, sysInfo)
sysInfo = New(true)
require.NotNil(t, sysInfo)
checkSysInfo(t, sysInfo)
}
func checkSysInfo(t *testing.T, sysInfo *SysInfo) {
// Check if Seccomp is supported, via CONFIG_SECCOMP.then sysInfo.Seccomp must be TRUE , else FALSE
if err := unix.Prctl(unix.PR_GET_SECCOMP, 0, 0, 0, 0); err != unix.EINVAL {
// Make sure the kernel has CONFIG_SECCOMP_FILTER.
if err := unix.Prctl(unix.PR_SET_SECCOMP, unix.SECCOMP_MODE_FILTER, 0, 0, 0); err != unix.EINVAL {
require.True(t, sysInfo.Seccomp)
}
} else {
require.False(t, sysInfo.Seccomp)
}
}
func TestNewAppArmorEnabled(t *testing.T) {
// Check if AppArmor is supported. then it must be TRUE , else FALSE
if _, err := os.Stat("/sys/kernel/security/apparmor"); err != nil {
t.Skip("App Armor Must be Enabled")
}
sysInfo := New(true)
require.True(t, sysInfo.AppArmor)
}
func TestNewAppArmorDisabled(t *testing.T) {
// Check if AppArmor is supported. then it must be TRUE , else FALSE
if _, err := os.Stat("/sys/kernel/security/apparmor"); !errors.Is(err, os.ErrNotExist) {
t.Skip("App Armor Must be Disabled")
}
sysInfo := New(true)
require.False(t, sysInfo.AppArmor)
}
func TestNumCPU(t *testing.T) {
cpuNumbers := NumCPU()
if cpuNumbers <= 0 {
t.Fatal("CPU returned must be greater than zero")
}
}
func TestNumMems(t *testing.T) {
if _, err := os.Stat("/proc/self/numa_maps"); !errors.Is(err, os.ErrNotExist) {
t.Skip("NUMA must be supported")
}
cpuMems := NUMANodeCount()
if cpuMems < 0 {
t.Fatal("Invalid number of memory nodes, must be 0 or greater.")
}
}
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