90 lines
2.2 KiB
Go
90 lines
2.2 KiB
Go
// +build linux
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// FIXME: we can't put this test to the mount package:
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// import cycle not allowed in test
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// package github.com/containerd/containerd/mount (test)
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// imports github.com/containerd/containerd/testutil
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// imports github.com/containerd/containerd/mount
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//
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// NOTE: we can't have this as lookup_test (compilation fails)
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package lookuptest
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import (
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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"testing"
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"github.com/containerd/containerd/mount"
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"github.com/containerd/containerd/testutil"
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"github.com/stretchr/testify/assert"
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)
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func testLookup(t *testing.T, fsType string) {
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checkLookup := func(mntPoint, dir string) {
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info, err := mount.Lookup(dir)
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if err != nil {
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t.Fatal(err)
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}
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assert.Equal(t, fsType, info.FSType)
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assert.Equal(t, mntPoint, info.Mountpoint)
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}
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testutil.RequiresRoot(t)
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mnt, err := ioutil.TempDir("", "containerd-mountinfo-test-lookup")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(mnt)
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deviceName, cleanupDevice, err := testutil.NewLoopback(100 << 20) // 100 MB
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if err != nil {
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t.Fatal(err)
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}
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if out, err := exec.Command("mkfs", "-t", fsType, deviceName).CombinedOutput(); err != nil {
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// not fatal
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t.Skipf("could not mkfs (%s) %s: %v (out: %q)", fsType, deviceName, err, string(out))
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}
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if out, err := exec.Command("mount", deviceName, mnt).CombinedOutput(); err != nil {
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// not fatal
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t.Skipf("could not mount %s: %v (out: %q)", deviceName, err, string(out))
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}
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defer func() {
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testutil.Unmount(t, mnt)
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cleanupDevice()
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}()
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assert.True(t, strings.HasPrefix(deviceName, "/dev/loop"))
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checkLookup(mnt, mnt)
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newMnt, err := ioutil.TempDir("", "containerd-mountinfo-test-newMnt")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(newMnt)
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if out, err := exec.Command("mount", "--bind", mnt, newMnt).CombinedOutput(); err != nil {
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t.Fatalf("could not mount %s to %s: %v (out: %q)", mnt, newMnt, err, string(out))
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}
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defer func() {
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testutil.Unmount(t, newMnt)
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}()
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checkLookup(newMnt, newMnt)
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subDir := filepath.Join(newMnt, "subDir")
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err = os.MkdirAll(subDir, 0700)
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if err != nil {
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t.Fatal(err)
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}
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checkLookup(newMnt, subDir)
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}
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func TestLookupWithExt4(t *testing.T) {
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testLookup(t, "ext4")
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}
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func TestLookupWithXFS(t *testing.T) {
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testLookup(t, "xfs")
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}
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