Checking in vendor folder for ease of using go get.

vendor/golang.org/x/sys/unix/xattr_test.go

@@ -0,0 +1,201 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin freebsd linux netbsd
+
+package unix_test
+
+import (
+	"io/ioutil"
+	"os"
+	"runtime"
+	"strings"
+	"testing"
+
+	"golang.org/x/sys/unix"
+)
+
+func TestXattr(t *testing.T) {
+	defer chtmpdir(t)()
+
+	f := "xattr1"
+	touch(t, f)
+
+	xattrName := "user.test"
+	xattrDataSet := "gopher"
+	err := unix.Setxattr(f, xattrName, []byte(xattrDataSet), 0)
+	if err == unix.ENOTSUP || err == unix.EOPNOTSUPP {
+		t.Skip("filesystem does not support extended attributes, skipping test")
+	} else if err != nil {
+		t.Fatalf("Setxattr: %v", err)
+	}
+
+	// find size
+	size, err := unix.Listxattr(f, nil)
+	if err != nil {
+		t.Fatalf("Listxattr: %v", err)
+	}
+
+	if size <= 0 {
+		t.Fatalf("Listxattr returned an empty list of attributes")
+	}
+
+	buf := make([]byte, size)
+	read, err := unix.Listxattr(f, buf)
+	if err != nil {
+		t.Fatalf("Listxattr: %v", err)
+	}
+
+	xattrs := stringsFromByteSlice(buf[:read])
+
+	xattrWant := xattrName
+	if runtime.GOOS == "freebsd" {
+		// On FreeBSD, the namespace is stored separately from the xattr
+		// name and Listxattr doesn't return the namespace prefix.
+		xattrWant = strings.TrimPrefix(xattrWant, "user.")
+	}
+	found := false
+	for _, name := range xattrs {
+		if name == xattrWant {
+			found = true
+		}
+	}
+
+	if !found {
+		t.Errorf("Listxattr did not return previously set attribute '%s'", xattrName)
+	}
+
+	// find size
+	size, err = unix.Getxattr(f, xattrName, nil)
+	if err != nil {
+		t.Fatalf("Getxattr: %v", err)
+	}
+
+	if size <= 0 {
+		t.Fatalf("Getxattr returned an empty attribute")
+	}
+
+	xattrDataGet := make([]byte, size)
+	_, err = unix.Getxattr(f, xattrName, xattrDataGet)
+	if err != nil {
+		t.Fatalf("Getxattr: %v", err)
+	}
+
+	got := string(xattrDataGet)
+	if got != xattrDataSet {
+		t.Errorf("Getxattr: expected attribute value %s, got %s", xattrDataSet, got)
+	}
+
+	err = unix.Removexattr(f, xattrName)
+	if err != nil {
+		t.Fatalf("Removexattr: %v", err)
+	}
+
+	n := "nonexistent"
+	err = unix.Lsetxattr(n, xattrName, []byte(xattrDataSet), 0)
+	if err != unix.ENOENT {
+		t.Errorf("Lsetxattr: expected %v on non-existent file, got %v", unix.ENOENT, err)
+	}
+
+	_, err = unix.Lgetxattr(n, xattrName, nil)
+	if err != unix.ENOENT {
+		t.Errorf("Lgetxattr: %v", err)
+	}
+
+	s := "symlink1"
+	err = os.Symlink(n, s)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = unix.Lsetxattr(s, xattrName, []byte(xattrDataSet), 0)
+	if err != nil {
+		// Linux and Android doen't support xattrs on symlinks according
+		// to xattr(7), so just test that we get the proper error.
+		if (runtime.GOOS != "linux" && runtime.GOOS != "android") || err != unix.EPERM {
+			t.Fatalf("Lsetxattr: %v", err)
+		}
+	}
+}
+
+func TestFdXattr(t *testing.T) {
+	file, err := ioutil.TempFile("", "TestFdXattr")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove(file.Name())
+	defer file.Close()
+
+	fd := int(file.Fd())
+	xattrName := "user.test"
+	xattrDataSet := "gopher"
+
+	err = unix.Fsetxattr(fd, xattrName, []byte(xattrDataSet), 0)
+	if err == unix.ENOTSUP || err == unix.EOPNOTSUPP {
+		t.Skip("filesystem does not support extended attributes, skipping test")
+	} else if err != nil {
+		t.Fatalf("Fsetxattr: %v", err)
+	}
+
+	// find size
+	size, err := unix.Flistxattr(fd, nil)
+	if err != nil {
+		t.Fatalf("Flistxattr: %v", err)
+	}
+
+	if size <= 0 {
+		t.Fatalf("Flistxattr returned an empty list of attributes")
+	}
+
+	buf := make([]byte, size)
+	read, err := unix.Flistxattr(fd, buf)
+	if err != nil {
+		t.Fatalf("Flistxattr: %v", err)
+	}
+
+	xattrs := stringsFromByteSlice(buf[:read])
+
+	xattrWant := xattrName
+	if runtime.GOOS == "freebsd" {
+		// On FreeBSD, the namespace is stored separately from the xattr
+		// name and Listxattr doesn't return the namespace prefix.
+		xattrWant = strings.TrimPrefix(xattrWant, "user.")
+	}
+	found := false
+	for _, name := range xattrs {
+		if name == xattrWant {
+			found = true
+		}
+	}
+
+	if !found {
+		t.Errorf("Flistxattr did not return previously set attribute '%s'", xattrName)
+	}
+
+	// find size
+	size, err = unix.Fgetxattr(fd, xattrName, nil)
+	if err != nil {
+		t.Fatalf("Fgetxattr: %v", err)
+	}
+
+	if size <= 0 {
+		t.Fatalf("Fgetxattr returned an empty attribute")
+	}
+
+	xattrDataGet := make([]byte, size)
+	_, err = unix.Fgetxattr(fd, xattrName, xattrDataGet)
+	if err != nil {
+		t.Fatalf("Fgetxattr: %v", err)
+	}
+
+	got := string(xattrDataGet)
+	if got != xattrDataSet {
+		t.Errorf("Fgetxattr: expected attribute value %s, got %s", xattrDataSet, got)
+	}
+
+	err = unix.Fremovexattr(fd, xattrName)
+	if err != nil {
+		t.Fatalf("Fremovexattr: %v", err)
+	}
+}