|
@@ -0,0 +1,91 @@
|
|
|
+// +build linux
|
|
|
+
|
|
|
+package fsutils
|
|
|
+
|
|
|
+import (
|
|
|
+ "io/ioutil"
|
|
|
+ "os"
|
|
|
+ "os/exec"
|
|
|
+ "syscall"
|
|
|
+ "testing"
|
|
|
+)
|
|
|
+
|
|
|
+func testSupportsDType(t *testing.T, expected bool, mkfsCommand string, mkfsArg ...string) {
|
|
|
+ // check whether mkfs is installed
|
|
|
+ if _, err := exec.LookPath(mkfsCommand); err != nil {
|
|
|
+ t.Skipf("%s not installed: %v", mkfsCommand, err)
|
|
|
+ }
|
|
|
+
|
|
|
+ // create a sparse image
|
|
|
+ imageSize := int64(32 * 1024 * 1024)
|
|
|
+ imageFile, err := ioutil.TempFile("", "fsutils-image")
|
|
|
+ if err != nil {
|
|
|
+ t.Fatal(err)
|
|
|
+ }
|
|
|
+ imageFileName := imageFile.Name()
|
|
|
+ defer os.Remove(imageFileName)
|
|
|
+ if _, err = imageFile.Seek(imageSize-1, 0); err != nil {
|
|
|
+ t.Fatal(err)
|
|
|
+ }
|
|
|
+ if _, err = imageFile.Write([]byte{0}); err != nil {
|
|
|
+ t.Fatal(err)
|
|
|
+ }
|
|
|
+ if err = imageFile.Close(); err != nil {
|
|
|
+ t.Fatal(err)
|
|
|
+ }
|
|
|
+
|
|
|
+ // create a mountpoint
|
|
|
+ mountpoint, err := ioutil.TempDir("", "fsutils-mountpoint")
|
|
|
+ if err != nil {
|
|
|
+ t.Fatal(err)
|
|
|
+ }
|
|
|
+ defer os.RemoveAll(mountpoint)
|
|
|
+
|
|
|
+ // format the image
|
|
|
+ args := append(mkfsArg, imageFileName)
|
|
|
+ t.Logf("Executing `%s %v`", mkfsCommand, args)
|
|
|
+ out, err := exec.Command(mkfsCommand, args...).CombinedOutput()
|
|
|
+ if len(out) > 0 {
|
|
|
+ t.Log(string(out))
|
|
|
+ }
|
|
|
+ if err != nil {
|
|
|
+ t.Fatal(err)
|
|
|
+ }
|
|
|
+
|
|
|
+ // loopback-mount the image.
|
|
|
+ // for ease of setting up loopback device, we use os/exec rather than syscall.Mount
|
|
|
+ out, err = exec.Command("mount", "-o", "loop", imageFileName, mountpoint).CombinedOutput()
|
|
|
+ if len(out) > 0 {
|
|
|
+ t.Log(string(out))
|
|
|
+ }
|
|
|
+ if err != nil {
|
|
|
+ t.Skip("skipping the test because mount failed")
|
|
|
+ }
|
|
|
+ defer func() {
|
|
|
+ if err := syscall.Unmount(mountpoint, 0); err != nil {
|
|
|
+ t.Fatal(err)
|
|
|
+ }
|
|
|
+ }()
|
|
|
+
|
|
|
+ // check whether it supports d_type
|
|
|
+ result, err := SupportsDType(mountpoint)
|
|
|
+ if err != nil {
|
|
|
+ t.Fatal(err)
|
|
|
+ }
|
|
|
+ t.Logf("Supports d_type: %v", result)
|
|
|
+ if result != expected {
|
|
|
+ t.Fatalf("expected %v, got %v", expected, result)
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+func TestSupportsDTypeWithFType0XFS(t *testing.T) {
|
|
|
+ testSupportsDType(t, false, "mkfs.xfs", "-m", "crc=0", "-n", "ftype=0")
|
|
|
+}
|
|
|
+
|
|
|
+func TestSupportsDTypeWithFType1XFS(t *testing.T) {
|
|
|
+ testSupportsDType(t, true, "mkfs.xfs", "-m", "crc=0", "-n", "ftype=1")
|
|
|
+}
|
|
|
+
|
|
|
+func TestSupportsDTypeWithExt4(t *testing.T) {
|
|
|
+ testSupportsDType(t, true, "mkfs.ext4")
|
|
|
+}
|