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
|
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package embedtest
import (
"embed"
"reflect"
"testing"
"testing/fstest"
)
//go:embed testdata/h*.txt
//go:embed c*.txt testdata/g*.txt
var global embed.FS
//go:embed c*txt
var concurrency string
//go:embed testdata/g*.txt
var glass []byte
func testFiles(t *testing.T, f embed.FS, name, data string) {
t.Helper()
d, err := f.ReadFile(name)
if err != nil {
t.Error(err)
return
}
if string(d) != data {
t.Errorf("read %v = %q, want %q", name, d, data)
}
}
func testString(t *testing.T, s, name, data string) {
t.Helper()
if s != data {
t.Errorf("%v = %q, want %q", name, s, data)
}
}
func testDir(t *testing.T, f embed.FS, name string, expect ...string) {
t.Helper()
dirs, err := f.ReadDir(name)
if err != nil {
t.Error(err)
return
}
var names []string
for _, d := range dirs {
name := d.Name()
if d.IsDir() {
name += "/"
}
names = append(names, name)
}
if !reflect.DeepEqual(names, expect) {
t.Errorf("readdir %v = %v, want %v", name, names, expect)
}
}
func TestGlobal(t *testing.T) {
testFiles(t, global, "concurrency.txt", "Concurrency is not parallelism.\n")
testFiles(t, global, "testdata/hello.txt", "hello, world\n")
testFiles(t, global, "testdata/glass.txt", "I can eat glass and it doesn't hurt me.\n")
if err := fstest.TestFS(global, "concurrency.txt", "testdata/hello.txt"); err != nil {
t.Fatal(err)
}
testString(t, concurrency, "concurrency", "Concurrency is not parallelism.\n")
testString(t, string(glass), "glass", "I can eat glass and it doesn't hurt me.\n")
}
//go:embed testdata
var testDirAll embed.FS
func TestDir(t *testing.T) {
all := testDirAll
testFiles(t, all, "testdata/hello.txt", "hello, world\n")
testFiles(t, all, "testdata/i/i18n.txt", "internationalization\n")
testFiles(t, all, "testdata/i/j/k/k8s.txt", "kubernetes\n")
testFiles(t, all, "testdata/ken.txt", "If a program is too slow, it must have a loop.\n")
testDir(t, all, ".", "testdata/")
testDir(t, all, "testdata/i", "i18n.txt", "j/")
testDir(t, all, "testdata/i/j", "k/")
testDir(t, all, "testdata/i/j/k", "k8s.txt")
}
//go:embed testdata
var testHiddenDir embed.FS
//go:embed testdata/*
var testHiddenStar embed.FS
func TestHidden(t *testing.T) {
dir := testHiddenDir
star := testHiddenStar
t.Logf("//go:embed testdata")
testDir(t, dir, "testdata",
"-not-hidden/", "ascii.txt", "glass.txt", "hello.txt", "i/", "ken.txt")
t.Logf("//go:embed testdata/*")
testDir(t, star, "testdata",
"-not-hidden/", ".hidden/", "_hidden/", "ascii.txt", "glass.txt", "hello.txt", "i/", "ken.txt")
testDir(t, star, "testdata/.hidden",
"fortune.txt", "more/") // but not .more or _more
}
func TestUninitialized(t *testing.T) {
var uninitialized embed.FS
testDir(t, uninitialized, ".")
f, err := uninitialized.Open(".")
if err != nil {
t.Fatal(err)
}
defer f.Close()
fi, err := f.Stat()
if err != nil {
t.Fatal(err)
}
if !fi.IsDir() {
t.Errorf("in uninitialized embed.FS, . is not a directory")
}
}
|
