func (f *setxattr) test(path string, t *testing.T) {
err := syscallx.Setxattr(path, "greeting", []byte("hello, world"), 0)
if err != nil {
t.Errorf("unexpected error: %v", err)
return
}
close(f.seen)
want := setxattrSeen{flags: 0, name: "greeting", value: "hello, world"}
if g, e := <-f.seen, want; g != e {
t.Errorf("setxattr saw %v, want %v", g, e)
}
}
func testSetxattr(t *testing.T, size int) {
const linux_XATTR_NAME_MAX = 64 * 1024
if size > linux_XATTR_NAME_MAX && runtime.GOOS == "linux" {
t.Skip("large xattrs are not supported by linux")
}
t.Parallel()
f := &setxattr{}
mnt, err := fstestutil.MountedT(t, childMapFS{"child": f})
if err != nil {
t.Fatal(err)
}
defer mnt.Close()
const g = "hello, world"
greeting := strings.Repeat(g, size/len(g)+1)[:size]
err = syscallx.Setxattr(mnt.Dir+"/child", "greeting", []byte(greeting), 0)
if err != nil {
t.Errorf("unexpected error: %v", err)
return
}
// fuse.SetxattrRequest contains a byte slice and thus cannot be
// directly compared
got := f.RecordedSetxattr()
if g, e := got.Name, "greeting"; g != e {
t.Errorf("Setxattr incorrect name: %q != %q", g, e)
}
if g, e := got.Flags, uint32(0); g != e {
t.Errorf("Setxattr incorrect flags: %d != %d", g, e)
}
if g, e := string(got.Xattr), greeting; g != e {
t.Errorf("Setxattr incorrect data: %q != %q", g, e)
}
}
func TestXattr(t *testing.T) {
condSkip(t)
inEmptyMutDir(t, func(env *mountEnv, rootDir string) {
name1 := filepath.Join(rootDir, "1")
attr1 := "attr1"
attr2 := "attr2"
contents := []byte("Some file contents")
if err := ioutil.WriteFile(name1, contents, 0644); err != nil {
t.Fatal(err)
}
buf := make([]byte, 8192)
// list empty
n, err := syscallx.Listxattr(name1, buf)
if err != nil {
t.Errorf("Error in initial listxattr: %v", err)
}
if n != 0 {
t.Errorf("Expected zero-length xattr list, got %q", buf[:n])
}
// get missing
n, err = syscallx.Getxattr(name1, attr1, buf)
if err == nil {
t.Errorf("Expected error getting non-existent xattr, got %q", buf[:n])
}
// Set (two different attributes)
err = syscallx.Setxattr(name1, attr1, []byte("hello1"), 0)
if err != nil {
t.Fatalf("Error setting xattr: %v", err)
}
err = syscallx.Setxattr(name1, attr2, []byte("hello2"), 0)
if err != nil {
t.Fatalf("Error setting xattr: %v", err)
}
// Alternate value for first attribute
err = syscallx.Setxattr(name1, attr1, []byte("hello1a"), 0)
if err != nil {
t.Fatalf("Error setting xattr: %v", err)
}
// list attrs
n, err = syscallx.Listxattr(name1, buf)
if err != nil {
t.Errorf("Error in initial listxattr: %v", err)
}
m := parseXattrList(buf[:n])
if !(len(m) == 2 && m[attr1] && m[attr2]) {
t.Errorf("Missing an attribute: %q", buf[:n])
}
// Remove attr
err = syscallx.Removexattr(name1, attr2)
if err != nil {
t.Errorf("Failed to remove attr: %v", err)
}
// List attrs
n, err = syscallx.Listxattr(name1, buf)
if err != nil {
t.Errorf("Error in initial listxattr: %v", err)
}
m = parseXattrList(buf[:n])
if !(len(m) == 1 && m[attr1]) {
t.Errorf("Missing an attribute: %q", buf[:n])
}
// Get remaining attr
n, err = syscallx.Getxattr(name1, attr1, buf)
if err != nil {
t.Errorf("Error getting attr1: %v", err)
}
if string(buf[:n]) != "hello1a" {
t.Logf("Expected hello1a, got %q", buf[:n])
}
})
}