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
|
package imagebuildah
import (
"archive/tar"
"io"
"os"
"path/filepath"
"testing"
"github.com/opencontainers/go-digest"
"github.com/stretchr/testify/assert"
)
func TestGeneratePathChecksum(t *testing.T) {
tempDir := t.TempDir()
tempFile, err := os.CreateTemp(tempDir, "testfile")
if err != nil {
t.Fatalf("Failed to create temp file: %v", err)
}
defer tempFile.Close()
// Write some data to the file
data := []byte("Hello, world!")
if _, err := tempFile.Write(data); err != nil {
t.Fatalf("Failed to write data to temp file: %v", err)
}
// Generate the checksum for the directory
checksum, err := generatePathChecksum(tempDir)
if err != nil {
t.Fatalf("Failed to generate checksum: %v", err)
}
digester := digest.SHA256.Digester()
tarWriter := tar.NewWriter(digester.Hash())
err = filepath.Walk(tempDir, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
header, err := tar.FileInfoHeader(info, "")
if err != nil {
return err
}
relPath, err := filepath.Rel(tempDir, path)
if err != nil {
return err
}
header.Name = filepath.ToSlash(relPath)
if err := tarWriter.WriteHeader(header); err != nil {
return err
}
if !info.Mode().IsRegular() {
return nil
}
file, err := os.Open(path)
if err != nil {
return err
}
defer file.Close()
_, err = io.Copy(tarWriter, file)
return err
})
if err != nil {
tarWriter.Close()
t.Fatalf("Failed to manually generate checksum: %v", err)
}
tarWriter.Close()
expectedChecksum := digester.Digest().String()
// Compare the generated checksum to the expected checksum
assert.Equal(t, expectedChecksum, checksum, "didn't get expected checksum over a sample directory")
}
|
