From 605a52de92a89eb5208ec5b9b8722143e9798f8a Mon Sep 17 00:00:00 2001
From: Aaron Jacobs <jacobsa@google.com>
Date: Tue, 3 Mar 2015 10:37:09 +1100
Subject: [PATCH] Added better tests for statting new dirs.

---
 samples/memfs/memfs_test.go | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/samples/memfs/memfs_test.go b/samples/memfs/memfs_test.go
index 9e2dfd8..2700eb6 100644
--- a/samples/memfs/memfs_test.go
+++ b/samples/memfs/memfs_test.go
@@ -9,6 +9,7 @@ import (
 	"os"
 	"path"
 	"strings"
+	"syscall"
 	"testing"
 	"time"
 
@@ -22,6 +23,16 @@ import (
 
 func TestMemFS(t *testing.T) { RunTests(t) }
 
+////////////////////////////////////////////////////////////////////////
+// Helpers
+////////////////////////////////////////////////////////////////////////
+
+func currentUid() uint32
+
+func currentGid() uint32
+
+func timespecToTime(ts syscall.Timespec) time.Time
+
 ////////////////////////////////////////////////////////////////////////
 // Boilerplate
 ////////////////////////////////////////////////////////////////////////
@@ -97,6 +108,8 @@ func (t *MemFSTest) ContentsOfEmptyFileSystem() {
 func (t *MemFSTest) Mkdir() {
 	var err error
 	var fi os.FileInfo
+	var stat *syscall.Stat_t
+
 	dirName := path.Join(t.mfs.Dir(), "dir")
 
 	// Create a directory within the root.
@@ -109,6 +122,7 @@ func (t *MemFSTest) Mkdir() {
 
 	// Stat the directory.
 	fi, err = os.Stat(dirName)
+	stat = fi.Sys().(*syscall.Stat_t)
 
 	AssertEq(nil, err)
 	ExpectEq("dir", fi.Name())
@@ -117,6 +131,14 @@ func (t *MemFSTest) Mkdir() {
 	ExpectEq(0, fi.ModTime().Sub(createTime))
 	ExpectTrue(fi.IsDir())
 
+	ExpectEq(1, stat.Nlink)
+	ExpectEq(currentUid(), stat.Uid)
+	ExpectEq(currentGid(), stat.Gid)
+	ExpectEq(0, stat.Size)
+	ExpectEq(createTime, timespecToTime(stat.Atimespec))
+	ExpectEq(createTime, timespecToTime(stat.Mtimespec))
+	ExpectEq(createTime, timespecToTime(stat.Ctimespec))
+
 	// Read the directory.
 	entries, err := ioutil.ReadDir(dirName)