1 files changed, 104 insertions, 0 deletions
diff --git a/pkg/sysinfo/sysinfo_linux_test.go b/pkg/sysinfo/sysinfo_linux_test.go
new file mode 100644
index 000000000..860784f2a
--- /dev/null
+++ b/pkg/sysinfo/sysinfo_linux_test.go
@@ -0,0 +1,104 @@
+package sysinfo
+
+import (
+	"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"), 0644)
+	require.NoError(t, err)
+
+	if !readProcBool(procFile) {
+		t.Fatal("expected proc bool to be true, got false")
+	}
+
+	if err := ioutil.WriteFile(procFile, []byte("0"), 0644); 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{}, 0644)
+	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"); !os.IsNotExist(err) {
+		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")
+	}
+}