forked from spf13/afero
-
Notifications
You must be signed in to change notification settings - Fork 1
/
ioutil_test.go
176 lines (160 loc) · 4.43 KB
/
ioutil_test.go
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
170
171
172
173
174
175
176
// ©2015 The Go Authors
// Copyright ©2015 Steve Francia <spf@spf13.com>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package afero
import (
"path/filepath"
"strings"
"testing"
)
func checkSizePath(t *testing.T, path string, size int64) {
dir, err := testFS.Stat(path)
if err != nil {
t.Fatalf("Stat %q (looking for size %d): %s", path, size, err)
}
if dir.Size() != size {
t.Errorf("Stat %q: size %d want %d", path, dir.Size(), size)
}
}
func TestReadFile(t *testing.T) {
testFS = &MemMapFs{}
fsutil := &Afero{Fs: testFS}
testFS.Create("this_exists.go")
filename := "rumpelstilzchen"
_, err := fsutil.ReadFile(filename)
if err == nil {
t.Fatalf("ReadFile %s: error expected, none found", filename)
}
filename = "this_exists.go"
contents, err := fsutil.ReadFile(filename)
if err != nil {
t.Fatalf("ReadFile %s: %v", filename, err)
}
checkSizePath(t, filename, int64(len(contents)))
}
func TestWriteFile(t *testing.T) {
testFS = &MemMapFs{}
fsutil := &Afero{Fs: testFS}
f, err := fsutil.TempFile("", "ioutil-test")
if err != nil {
t.Fatal(err)
}
filename := f.Name()
data := "Programming today is a race between software engineers striving to " +
"build bigger and better idiot-proof programs, and the Universe trying " +
"to produce bigger and better idiots. So far, the Universe is winning."
if err := fsutil.WriteFile(filename, []byte(data), 0644); err != nil {
t.Fatalf("WriteFile %s: %v", filename, err)
}
contents, err := fsutil.ReadFile(filename)
if err != nil {
t.Fatalf("ReadFile %s: %v", filename, err)
}
if string(contents) != data {
t.Fatalf("contents = %q\nexpected = %q", string(contents), data)
}
// cleanup
f.Close()
testFS.Remove(filename) // ignore error
}
func TestReadDir(t *testing.T) {
testFS = &MemMapFs{}
testFS.Mkdir("/i-am-a-dir", 0777)
testFS.Create("/this_exists.go")
dirname := "rumpelstilzchen"
_, err := ReadDir(testFS, dirname)
if err == nil {
t.Fatalf("ReadDir %s: error expected, none found", dirname)
}
dirname = ".."
list, err := ReadDir(testFS, dirname)
if err != nil {
t.Fatalf("ReadDir %s: %v", dirname, err)
}
foundFile := false
foundSubDir := false
for _, dir := range list {
switch {
case !dir.IsDir() && dir.Name() == "this_exists.go":
foundFile = true
case dir.IsDir() && dir.Name() == "i-am-a-dir":
foundSubDir = true
}
}
if !foundFile {
t.Fatalf("ReadDir %s: this_exists.go file not found", dirname)
}
if !foundSubDir {
t.Fatalf("ReadDir %s: i-am-a-dir directory not found", dirname)
}
}
func TestTempFile(t *testing.T) {
type args struct {
dir string
pattern string
}
tests := map[string]struct {
args args
want func(*testing.T, string)
}{
"foo": { // simple file name
args: args{
dir: "",
pattern: "foo",
},
want: func(t *testing.T, base string) {
if !strings.HasPrefix(base, "foo") || len(base) <= len("foo") {
t.Errorf("TempFile() file = %s, invalid file name", base)
}
},
},
"foo.bar": { // file name w/ ext
args: args{
dir: "",
pattern: "foo.bar",
},
want: func(t *testing.T, base string) {
if !strings.HasPrefix(base, "foo.bar") || len(base) <= len("foo.bar") {
t.Errorf("TempFile() file = %v, invalid file name", base)
}
},
},
"foo-*.bar": { // file name with wild card
args: args{
dir: "",
pattern: "foo-*.bar",
},
want: func(t *testing.T, base string) {
if !(strings.HasPrefix(base, "foo-") || strings.HasPrefix(base, "bar")) ||
len(base) <= len("foo-*.bar") {
t.Errorf("TempFile() file = %v, invalid file name", base)
}
},
},
}
for name, tt := range tests {
t.Run(name, func(t *testing.T) {
file, err := TempFile(NewMemMapFs(), tt.args.dir, tt.args.pattern)
if err != nil {
t.Errorf("TempFile() error = %v, none expected", err)
return
}
if file == nil {
t.Errorf("TempFile() file = %v, should not be nil", file)
return
}
tt.want(t, filepath.Base(file.Name()))
})
}
}