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126 lines
3.2 KiB
Go
126 lines
3.2 KiB
Go
// +build linux freebsd
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package operatingsystem
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import (
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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)
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func TestGetOperatingSystem(t *testing.T) {
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var (
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backup = etcOsRelease
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ubuntuTrusty = []byte(`NAME="Ubuntu"
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VERSION="14.04, Trusty Tahr"
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ID=ubuntu
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ID_LIKE=debian
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PRETTY_NAME="Ubuntu 14.04 LTS"
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VERSION_ID="14.04"
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HOME_URL="http://www.ubuntu.com/"
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SUPPORT_URL="http://help.ubuntu.com/"
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BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"`)
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gentoo = []byte(`NAME=Gentoo
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ID=gentoo
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PRETTY_NAME="Gentoo/Linux"
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ANSI_COLOR="1;32"
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HOME_URL="http://www.gentoo.org/"
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SUPPORT_URL="http://www.gentoo.org/main/en/support.xml"
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BUG_REPORT_URL="https://bugs.gentoo.org/"
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`)
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noPrettyName = []byte(`NAME="Ubuntu"
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VERSION="14.04, Trusty Tahr"
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ID=ubuntu
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ID_LIKE=debian
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VERSION_ID="14.04"
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HOME_URL="http://www.ubuntu.com/"
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SUPPORT_URL="http://help.ubuntu.com/"
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BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"`)
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)
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dir := os.TempDir()
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etcOsRelease = filepath.Join(dir, "etcOsRelease")
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defer func() {
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os.Remove(etcOsRelease)
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etcOsRelease = backup
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}()
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for expect, osRelease := range map[string][]byte{
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"Ubuntu 14.04 LTS": ubuntuTrusty,
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"Gentoo/Linux": gentoo,
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"": noPrettyName,
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} {
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if err := ioutil.WriteFile(etcOsRelease, osRelease, 0600); err != nil {
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t.Fatalf("failed to write to %s: %v", etcOsRelease, err)
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}
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s, err := GetOperatingSystem()
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if s != expect {
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if expect == "" {
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t.Fatalf("Expected error 'PRETTY_NAME not found', but got %v", err)
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} else {
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t.Fatalf("Expected '%s', but got '%s'. Err=%v", expect, s, err)
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}
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}
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}
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}
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func TestIsContainerized(t *testing.T) {
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var (
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backup = proc1Cgroup
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nonContainerizedProc1Cgroup = []byte(`14:name=systemd:/
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13:hugetlb:/
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12:net_prio:/
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11:perf_event:/
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10:bfqio:/
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9:blkio:/
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8:net_cls:/
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7:freezer:/
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6:devices:/
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5:memory:/
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4:cpuacct:/
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3:cpu:/
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2:cpuset:/
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`)
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containerizedProc1Cgroup = []byte(`9:perf_event:/docker/3cef1b53c50b0fa357d994f8a1a8cd783c76bbf4f5dd08b226e38a8bd331338d
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8:blkio:/docker/3cef1b53c50b0fa357d994f8a1a8cd783c76bbf4f5dd08b226e38a8bd331338d
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7:net_cls:/
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6:freezer:/docker/3cef1b53c50b0fa357d994f8a1a8cd783c76bbf4f5dd08b226e38a8bd331338d
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5:devices:/docker/3cef1b53c50b0fa357d994f8a1a8cd783c76bbf4f5dd08b226e38a8bd331338d
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4:memory:/docker/3cef1b53c50b0fa357d994f8a1a8cd783c76bbf4f5dd08b226e38a8bd331338d
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3:cpuacct:/docker/3cef1b53c50b0fa357d994f8a1a8cd783c76bbf4f5dd08b226e38a8bd331338d
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2:cpu:/docker/3cef1b53c50b0fa357d994f8a1a8cd783c76bbf4f5dd08b226e38a8bd331338d
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1:cpuset:/`)
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)
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dir := os.TempDir()
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proc1Cgroup = filepath.Join(dir, "proc1Cgroup")
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defer func() {
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os.Remove(proc1Cgroup)
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proc1Cgroup = backup
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}()
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if err := ioutil.WriteFile(proc1Cgroup, nonContainerizedProc1Cgroup, 0600); err != nil {
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t.Fatalf("failed to write to %s: %v", proc1Cgroup, err)
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}
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inContainer, err := IsContainerized()
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if err != nil {
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t.Fatal(err)
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}
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if inContainer {
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t.Fatal("Wrongly assuming containerized")
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}
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if err := ioutil.WriteFile(proc1Cgroup, containerizedProc1Cgroup, 0600); err != nil {
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t.Fatalf("failed to write to %s: %v", proc1Cgroup, err)
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}
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inContainer, err = IsContainerized()
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if err != nil {
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t.Fatal(err)
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}
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if !inContainer {
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t.Fatal("Wrongly assuming non-containerized")
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}
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}
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