1
2
3
4
5 package dirhash
6
7 import (
8 "archive/zip"
9 "crypto/sha256"
10 "encoding/base64"
11 "fmt"
12 "io"
13 "io/ioutil"
14 "os"
15 "path/filepath"
16 "strings"
17 "testing"
18 )
19
20 func h(s string) string {
21 return fmt.Sprintf("%x", sha256.Sum256([]byte(s)))
22 }
23
24 func htop(k string, s string) string {
25 sum := sha256.Sum256([]byte(s))
26 return k + ":" + base64.StdEncoding.EncodeToString(sum[:])
27 }
28
29 func TestHash1(t *testing.T) {
30 files := []string{"xyz", "abc"}
31 open := func(name string) (io.ReadCloser, error) {
32 return ioutil.NopCloser(strings.NewReader("data for " + name)), nil
33 }
34 want := htop("h1", fmt.Sprintf("%s %s\n%s %s\n", h("data for abc"), "abc", h("data for xyz"), "xyz"))
35 out, err := Hash1(files, open)
36 if err != nil {
37 t.Fatal(err)
38 }
39 if out != want {
40 t.Errorf("Hash1(...) = %s, want %s", out, want)
41 }
42
43 _, err = Hash1([]string{"xyz", "a\nbc"}, open)
44 if err == nil {
45 t.Error("Hash1: expected error on newline in filenames")
46 }
47 }
48
49 func TestHashDir(t *testing.T) {
50 dir, err := ioutil.TempDir("", "dirhash-test-")
51 if err != nil {
52 t.Fatal(err)
53 }
54 defer os.RemoveAll(dir)
55 if err := ioutil.WriteFile(filepath.Join(dir, "xyz"), []byte("data for xyz"), 0o666); err != nil {
56 t.Fatal(err)
57 }
58 if err := ioutil.WriteFile(filepath.Join(dir, "abc"), []byte("data for abc"), 0o666); err != nil {
59 t.Fatal(err)
60 }
61 want := htop("h1", fmt.Sprintf("%s %s\n%s %s\n", h("data for abc"), "prefix/abc", h("data for xyz"), "prefix/xyz"))
62 out, err := HashDir(dir, "prefix", Hash1)
63 if err != nil {
64 t.Fatalf("HashDir: %v", err)
65 }
66 if out != want {
67 t.Errorf("HashDir(...) = %s, want %s", out, want)
68 }
69 }
70
71 func TestHashZip(t *testing.T) {
72 f, err := ioutil.TempFile("", "dirhash-test-")
73 if err != nil {
74 t.Fatal(err)
75 }
76 defer os.Remove(f.Name())
77 defer f.Close()
78
79 z := zip.NewWriter(f)
80 w, err := z.Create("prefix/xyz")
81 if err != nil {
82 t.Fatal(err)
83 }
84 w.Write([]byte("data for xyz"))
85 w, err = z.Create("prefix/abc")
86 if err != nil {
87 t.Fatal(err)
88 }
89 w.Write([]byte("data for abc"))
90 if err := z.Close(); err != nil {
91 t.Fatal(err)
92 }
93 if err := f.Close(); err != nil {
94 t.Fatal(err)
95 }
96
97 want := htop("h1", fmt.Sprintf("%s %s\n%s %s\n", h("data for abc"), "prefix/abc", h("data for xyz"), "prefix/xyz"))
98 out, err := HashZip(f.Name(), Hash1)
99 if err != nil {
100 t.Fatalf("HashDir: %v", err)
101 }
102 if out != want {
103 t.Errorf("HashDir(...) = %s, want %s", out, want)
104 }
105 }
106
107 func TestDirFiles(t *testing.T) {
108 dir, err := ioutil.TempDir("", "dirfiles-test-")
109 if err != nil {
110 t.Fatal(err)
111 }
112 defer os.RemoveAll(dir)
113 if err := ioutil.WriteFile(filepath.Join(dir, "xyz"), []byte("data for xyz"), 0o666); err != nil {
114 t.Fatal(err)
115 }
116 if err := ioutil.WriteFile(filepath.Join(dir, "abc"), []byte("data for abc"), 0o666); err != nil {
117 t.Fatal(err)
118 }
119 if err := os.Mkdir(filepath.Join(dir, "subdir"), 0o777); err != nil {
120 t.Fatal(err)
121 }
122 if err := ioutil.WriteFile(filepath.Join(dir, "subdir", "xyz"), []byte("data for subdir xyz"), 0o666); err != nil {
123 t.Fatal(err)
124 }
125 prefix := "foo/bar@v2.3.4"
126 out, err := DirFiles(dir, prefix)
127 if err != nil {
128 t.Fatalf("DirFiles: %v", err)
129 }
130 for _, file := range out {
131 if !strings.HasPrefix(file, prefix) {
132 t.Errorf("Dir file = %s, want prefix %s", file, prefix)
133 }
134 }
135 }
136
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