From eb058795cb5ebba43e2a0a33f540bbc2c37945c4 Mon Sep 17 00:00:00 2001
From: Derek McGowan <derek@mcg.dev>
Date: Thu, 20 Apr 2023 11:19:04 -0700
Subject: [PATCH] Fix Darwin tests

Signed-off-by: Derek McGowan <derek@mcg.dev>
---
 fs/copy_unix.go      |  5 +++++
 fs/copy_unix_test.go | 11 +++++++----
 fs/du_test.go        | 26 +++++++++++++++-----------
 3 files changed, 27 insertions(+), 15 deletions(-)

diff --git a/fs/copy_unix.go b/fs/copy_unix.go
index 0e68ba9e..dd957872 100644
--- a/fs/copy_unix.go
+++ b/fs/copy_unix.go
@@ -23,6 +23,7 @@ import (
 	"fmt"
 	"io"
 	"os"
+	"runtime"
 	"syscall"
 
 	"github.com/containerd/continuity/sysx"
@@ -71,6 +72,10 @@ func copyFileContent(dst, src *os.File) error {
 func copyXAttrs(dst, src string, excludes map[string]struct{}, errorHandler XAttrErrorHandler) error {
 	xattrKeys, err := sysx.LListxattr(src)
 	if err != nil {
+		if os.IsPermission(err) && runtime.GOOS == "darwin" {
+			// On darwin, character devices do not permit listing xattrs
+			return nil
+		}
 		e := fmt.Errorf("failed to list xattrs on %s: %w", src, err)
 		if errorHandler != nil {
 			e = errorHandler(dst, src, "", e)
diff --git a/fs/copy_unix_test.go b/fs/copy_unix_test.go
index d4a02038..69eb2d52 100644
--- a/fs/copy_unix_test.go
+++ b/fs/copy_unix_test.go
@@ -22,6 +22,7 @@ package fs
 import (
 	"os"
 	"path/filepath"
+	"runtime"
 	"syscall"
 	"testing"
 
@@ -89,11 +90,13 @@ func TestCopyIrregular(t *testing.T) {
 			t.Fatal(err)
 		}
 		prepared++
-		f2Socket := filepath.Join(src, "f2.sock")
-		if err := unix.Mknod(f2Socket, 0o600|unix.S_IFSOCK, 0); err != nil {
-			t.Fatal(err)
+		if runtime.GOOS != "darwin" {
+			f2Socket := filepath.Join(src, "f2.sock")
+			if err := unix.Mknod(f2Socket, 0o600|unix.S_IFSOCK, 0); err != nil {
+				t.Fatal(err)
+			}
+			prepared++
 		}
-		prepared++
 		f3Dev := filepath.Join(src, "f3.dev")
 		if err := unix.Mknod(f3Dev, 0o600|unix.S_IFCHR, 42); err != nil {
 			t.Logf("skipping testing S_IFCHR: %v", err)
diff --git a/fs/du_test.go b/fs/du_test.go
index 4744df01..9839a577 100644
--- a/fs/du_test.go
+++ b/fs/du_test.go
@@ -73,17 +73,6 @@ func TestUsage(t *testing.T) {
 	}
 	if runtime.GOOS != "windows" {
 		testCases = append(testCases, []testCase{
-			{
-				name: "SparseFiles",
-				fs: fstest.Apply(
-					fstest.CreateDir("/dir", 0o755),
-					fstest.CreateRandomFile("/dir/file1", 7, 5, 0o644),
-					createSparseFile("/dir/sparse1", 8, 0o644, 5, 1024*1024, 5),
-					createSparseFile("/dir/sparse2", 9, 0o644, 0, 1024*1024),
-					createSparseFile("/dir/sparse2", 10, 0o644, 0, 1024*1024*1024, 1024),
-				),
-				size: dirs(2) + align(5)*3 + align(1024),
-			},
 			{
 				name: "Hardlinks",
 				fs: fstest.Apply(
@@ -104,6 +93,21 @@ func TestUsage(t *testing.T) {
 			},
 		}...)
 	}
+	if runtime.GOOS != "windows" && runtime.GOOS != "darwin" {
+		testCases = append(testCases, []testCase{
+			{
+				name: "SparseFiles",
+				fs: fstest.Apply(
+					fstest.CreateDir("/dir", 0o755),
+					fstest.CreateRandomFile("/dir/file1", 7, 5, 0o644),
+					createSparseFile("/dir/sparse1", 8, 0o644, 5, 1024*1024, 5),
+					createSparseFile("/dir/sparse2", 9, 0o644, 0, 1024*1024),
+					createSparseFile("/dir/sparse2", 10, 0o644, 0, 1024*1024*1024, 1024),
+				),
+				size: dirs(2) + align(5)*3 + align(1024),
+			},
+		}...)
+	}
 
 	for i := range testCases {
 		tc := testCases[i]