1// Copyright 2009 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package os_test
6
7import (
8	"internal/testenv"
9	. "os"
10	"path/filepath"
11	"runtime"
12	"syscall"
13	"testing"
14)
15
16var isReadonlyError = func(error) bool { return false }
17
18func TestMkdirAll(t *testing.T) {
19	t.Parallel()
20
21	tmpDir := TempDir()
22	path := tmpDir + "/_TestMkdirAll_/dir/./dir2"
23	err := MkdirAll(path, 0777)
24	if err != nil {
25		t.Fatalf("MkdirAll %q: %s", path, err)
26	}
27	defer RemoveAll(tmpDir + "/_TestMkdirAll_")
28
29	// Already exists, should succeed.
30	err = MkdirAll(path, 0777)
31	if err != nil {
32		t.Fatalf("MkdirAll %q (second time): %s", path, err)
33	}
34
35	// Make file.
36	fpath := path + "/file"
37	f, err := Create(fpath)
38	if err != nil {
39		t.Fatalf("create %q: %s", fpath, err)
40	}
41	defer f.Close()
42
43	// Can't make directory named after file.
44	err = MkdirAll(fpath, 0777)
45	if err == nil {
46		t.Fatalf("MkdirAll %q: no error", fpath)
47	}
48	perr, ok := err.(*PathError)
49	if !ok {
50		t.Fatalf("MkdirAll %q returned %T, not *PathError", fpath, err)
51	}
52	if filepath.Clean(perr.Path) != filepath.Clean(fpath) {
53		t.Fatalf("MkdirAll %q returned wrong error path: %q not %q", fpath, filepath.Clean(perr.Path), filepath.Clean(fpath))
54	}
55
56	// Can't make subdirectory of file.
57	ffpath := fpath + "/subdir"
58	err = MkdirAll(ffpath, 0777)
59	if err == nil {
60		t.Fatalf("MkdirAll %q: no error", ffpath)
61	}
62	perr, ok = err.(*PathError)
63	if !ok {
64		t.Fatalf("MkdirAll %q returned %T, not *PathError", ffpath, err)
65	}
66	if filepath.Clean(perr.Path) != filepath.Clean(fpath) {
67		t.Fatalf("MkdirAll %q returned wrong error path: %q not %q", ffpath, filepath.Clean(perr.Path), filepath.Clean(fpath))
68	}
69
70	if runtime.GOOS == "windows" {
71		path := tmpDir + `\_TestMkdirAll_\dir\.\dir2\`
72		err := MkdirAll(path, 0777)
73		if err != nil {
74			t.Fatalf("MkdirAll %q: %s", path, err)
75		}
76	}
77}
78
79func TestMkdirAllWithSymlink(t *testing.T) {
80	testenv.MustHaveSymlink(t)
81	t.Parallel()
82
83	tmpDir := t.TempDir()
84	dir := tmpDir + "/dir"
85	if err := Mkdir(dir, 0755); err != nil {
86		t.Fatalf("Mkdir %s: %s", dir, err)
87	}
88
89	link := tmpDir + "/link"
90	if err := Symlink("dir", link); err != nil {
91		t.Fatalf("Symlink %s: %s", link, err)
92	}
93
94	path := link + "/foo"
95	if err := MkdirAll(path, 0755); err != nil {
96		t.Errorf("MkdirAll %q: %s", path, err)
97	}
98}
99
100func TestMkdirAllAtSlash(t *testing.T) {
101	switch runtime.GOOS {
102	case "android", "ios", "plan9", "windows":
103		t.Skipf("skipping on %s", runtime.GOOS)
104	}
105	if testenv.Builder() == "" {
106		t.Skipf("skipping non-hermetic test outside of Go builders")
107	}
108
109	RemoveAll("/_go_os_test")
110	const dir = "/_go_os_test/dir"
111	err := MkdirAll(dir, 0777)
112	if err != nil {
113		pathErr, ok := err.(*PathError)
114		// common for users not to be able to write to /
115		if ok && (pathErr.Err == syscall.EACCES || isReadonlyError(pathErr.Err)) {
116			t.Skipf("could not create %v: %v", dir, err)
117		}
118		t.Fatalf(`MkdirAll "/_go_os_test/dir": %v, %s`, err, pathErr.Err)
119	}
120	RemoveAll("/_go_os_test")
121}
122