path/filepath: add test for directory junction walk

For #10424.

Change-Id: Ie4e87503b0ed04f65d2444652bd1db647d3529f4
Reviewed-on: https://go-review.googlesource.com/36851
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>

diff --git a/src/path/filepath/path_windows_test.go b/src/path/filepath/path_windows_test.go
index c9a0255efdc8c5fb7e58a47ab1a26c2aa208fdd7..795b1f1bb84b9d9aa34288e8a0a4911a20c407ba 100644 (file)
--- a/src/path/filepath/path_windows_test.go
+++ b/src/path/filepath/path_windows_test.go
@@ -433,3 +433,45 @@ func TestUNC(t *testing.T) {
        defer debug.SetMaxStack(debug.SetMaxStack(1e6))
        filepath.Glob(`\\?\c:\*`)
 }
+
+func TestWalkDirectoryJunction(t *testing.T) {
+       t.Skip("skipping broken test: see issue 10424")
+
+       output, _ := exec.Command("cmd", "/c", "mklink", "/?").Output()
+       if !strings.Contains(string(output), " /J ") {
+               t.Skip(`skipping test; mklink does not supports directory junctions`)
+       }
+
+       tmpdir, err := ioutil.TempDir("", "TestWalkDirectoryJunction")
+       if err != nil {
+               t.Fatal(err)
+       }
+       defer os.RemoveAll(tmpdir)
+
+       wd, err := os.Getwd()
+       if err != nil {
+               t.Fatal(err)
+       }
+       defer os.Chdir(wd)
+
+       err = os.Chdir(tmpdir)
+       if err != nil {
+               t.Fatal(err)
+       }
+
+       output, err = exec.Command("cmd", "/c", "mklink", "/J", "link", tmpdir).CombinedOutput()
+       if err != nil {
+               t.Errorf(`"mklink link %v" command failed: %v\n%v`, tmpdir, err, string(output))
+       }
+
+       walkfunc := func(path string, info os.FileInfo, err error) error {
+               if err != nil {
+                       t.Log(err)
+               }
+               return nil
+       }
+       err = filepath.Walk(tmpdir, walkfunc)
+       if err != nil {
+               t.Fatal(err)
+       }
+}