1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
// Copyright 2013 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package filestorage_test
// The filestorage structs are used as stubs in tests.
// The tests defined herein are simple smoke tests for the
// required reader and writer functionality.
import (
"bytes"
"io/ioutil"
"os"
"path/filepath"
"testing"
gc "launchpad.net/gocheck"
"launchpad.net/juju-core/environs/filestorage"
"launchpad.net/juju-core/environs/storage"
coreerrors "launchpad.net/juju-core/errors"
jc "launchpad.net/juju-core/testing/checkers"
)
func TestPackage(t *testing.T) {
gc.TestingT(t)
}
type filestorageSuite struct {
dir string
reader storage.StorageReader
writer storage.StorageWriter
}
var _ = gc.Suite(&filestorageSuite{})
func (s *filestorageSuite) SetUpTest(c *gc.C) {
s.dir = c.MkDir()
var err error
s.reader, err = filestorage.NewFileStorageReader(s.dir)
c.Assert(err, gc.IsNil)
s.writer, err = filestorage.NewFileStorageWriter(s.dir, filestorage.UseDefaultTmpDir)
c.Assert(err, gc.IsNil)
}
func (s *filestorageSuite) createFile(c *gc.C, name string) (fullpath string, data []byte) {
fullpath = filepath.Join(s.dir, name)
dir := filepath.Dir(fullpath)
c.Assert(os.MkdirAll(dir, 0755), gc.IsNil)
data = []byte{1, 2, 3, 4, 5}
err := ioutil.WriteFile(fullpath, data, 0644)
c.Assert(err, gc.IsNil)
return fullpath, data
}
func (s *filestorageSuite) TestList(c *gc.C) {
names := []string{
"a/b/c",
"a/bb",
"a/c",
"aa",
"b/c/d",
}
for _, name := range names {
s.createFile(c, name)
}
type test struct {
prefix string
expected []string
}
for i, test := range []test{
{"a", []string{"a/b/c", "a/bb", "a/c", "aa"}},
{"a/b", []string{"a/b/c", "a/bb"}},
{"a/b/c", []string{"a/b/c"}},
{"", names},
} {
c.Logf("test %d: prefix=%q", i, test.prefix)
files, err := storage.List(s.reader, test.prefix)
c.Assert(err, gc.IsNil)
c.Assert(files, gc.DeepEquals, test.expected)
}
}
func (s *filestorageSuite) TestURL(c *gc.C) {
expectedpath, _ := s.createFile(c, "test-file")
_, file := filepath.Split(expectedpath)
url, err := s.reader.URL(file)
c.Assert(err, gc.IsNil)
c.Assert(url, gc.Equals, "file://"+expectedpath)
}
func (s *filestorageSuite) TestGet(c *gc.C) {
expectedpath, data := s.createFile(c, "test-file")
_, file := filepath.Split(expectedpath)
rc, err := storage.Get(s.reader, file)
c.Assert(err, gc.IsNil)
defer rc.Close()
c.Assert(err, gc.IsNil)
b, err := ioutil.ReadAll(rc)
c.Assert(err, gc.IsNil)
c.Assert(b, gc.DeepEquals, data)
// Get on a non-existant path returns NotFoundError
_, err = s.reader.Get("nowhere")
c.Assert(err, jc.Satisfies, coreerrors.IsNotFoundError)
// Get on a directory returns NotFoundError
s.createFile(c, "dir/file")
_, err = s.reader.Get("dir")
c.Assert(err, jc.Satisfies, coreerrors.IsNotFoundError)
}
func (s *filestorageSuite) TestPut(c *gc.C) {
data := []byte{1, 2, 3, 4, 5}
err := s.writer.Put("test-write", bytes.NewReader(data), int64(len(data)))
c.Assert(err, gc.IsNil)
b, err := ioutil.ReadFile(filepath.Join(s.dir, "test-write"))
c.Assert(err, gc.IsNil)
c.Assert(b, gc.DeepEquals, data)
}
func (s *filestorageSuite) TestRemove(c *gc.C) {
expectedpath, _ := s.createFile(c, "test-file")
_, file := filepath.Split(expectedpath)
err := s.writer.Remove(file)
c.Assert(err, gc.IsNil)
_, err = ioutil.ReadFile(expectedpath)
c.Assert(err, gc.Not(gc.IsNil))
}
func (s *filestorageSuite) TestRemoveAll(c *gc.C) {
expectedpath, _ := s.createFile(c, "test-file")
err := s.writer.RemoveAll()
c.Assert(err, gc.IsNil)
_, err = ioutil.ReadFile(expectedpath)
c.Assert(err, gc.Not(gc.IsNil))
}
func (s *filestorageSuite) TestPutTmpDir(c *gc.C) {
// Put should create and clean up the temporary directory if
// tmpdir==UseDefaultTmpDir.
err := s.writer.Put("test-write", bytes.NewReader(nil), 0)
c.Assert(err, gc.IsNil)
_, err = os.Stat(s.dir + ".tmp")
c.Assert(err, jc.Satisfies, os.IsNotExist)
// To deal with recovering from hard failure, UseDefaultTmpDir
// doesn't care if the temporary directory already exists. It
// still removes it, though.
err = os.Mkdir(s.dir+".tmp", 0755)
c.Assert(err, gc.IsNil)
err = s.writer.Put("test-write", bytes.NewReader(nil), 0)
c.Assert(err, gc.IsNil)
_, err = os.Stat(s.dir + ".tmp")
c.Assert(err, jc.Satisfies, os.IsNotExist)
// If we explicitly set the temporary directory, it must already exist.
s.writer, err = filestorage.NewFileStorageWriter(s.dir, s.dir+".tmp")
c.Assert(err, gc.IsNil)
err = s.writer.Put("test-write", bytes.NewReader(nil), 0)
c.Assert(err, jc.Satisfies, os.IsNotExist)
err = os.Mkdir(s.dir+".tmp", 0755)
c.Assert(err, gc.IsNil)
err = s.writer.Put("test-write", bytes.NewReader(nil), 0)
c.Assert(err, gc.IsNil)
// Temporary directory should not have been moved.
_, err = os.Stat(s.dir + ".tmp")
c.Assert(err, gc.IsNil)
}
|