A shepherd for your Appimages.
improve tests
Aly Raffauf
(Jun 17, 2026, 5:27 PM EDT)
eea48c1c
26e721a4
+18
-41
+18
-29
cmd/appherder/appimage_test.go
+18
-29
cmd/appherder/appimage_test.go
···
2
2
3
3
import (
4
4
"bytes"
5
-
"encoding/binary"
6
5
"errors"
7
6
"os"
8
7
"path/filepath"
9
8
"testing"
10
9
)
11
10
12
-
// elfHeader builds a minimal little-endian ELF header with the given class
13
-
// (1=32-bit, 2=64-bit) and section-header-table fields.
14
-
func elfHeader(class byte, shoff uint64, shentsize, shnum uint16) []byte {
15
-
h := make([]byte, 64)
16
-
copy(h, []byte{0x7f, 'E', 'L', 'F'})
17
-
h[4] = class
18
-
h[5] = 1 // little-endian
19
-
if class == 2 {
20
-
binary.LittleEndian.PutUint64(h[40:48], shoff)
21
-
binary.LittleEndian.PutUint16(h[58:60], shentsize)
22
-
binary.LittleEndian.PutUint16(h[60:62], shnum)
23
-
} else {
24
-
binary.LittleEndian.PutUint32(h[32:36], uint32(shoff))
25
-
binary.LittleEndian.PutUint16(h[46:48], shentsize)
26
-
binary.LittleEndian.PutUint16(h[48:50], shnum)
11
+
func TestAppImageSquashfsOffset(t *testing.T) {
12
+
// First 64 bytes of a real type-2 ELF64 AppImage (appimagetool), whose
13
+
// squashfs payload begins at the offset asserted below.
14
+
header := []byte{
15
+
0x7f, 0x45, 0x4c, 0x46, 0x02, 0x01, 0x01, 0x00, 0x41, 0x49, 0x02, 0x00,
16
+
0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x3e, 0x00, 0x01, 0x00, 0x00, 0x00,
17
+
0x87, 0xae, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,
18
+
0x00, 0x00, 0x00, 0x00, 0x78, 0x62, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00,
19
+
0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x38, 0x00, 0x0a, 0x00, 0x40, 0x00,
20
+
0x1e, 0x00, 0x1d, 0x00,
21
+
}
22
+
got, err := appImageSquashfsOffset(bytes.NewReader(header))
23
+
if err != nil {
24
+
t.Fatal(err)
27
25
}
28
-
return h
29
-
}
30
-
31
-
func TestAppImageSquashfsOffset(t *testing.T) {
32
-
for _, class := range []byte{1, 2} {
33
-
got, err := appImageSquashfsOffset(bytes.NewReader(elfHeader(class, 1000, 64, 10)))
34
-
if err != nil {
35
-
t.Fatalf("class %d: %v", class, err)
36
-
}
37
-
if want := int64(1000 + 64*10); got != want {
38
-
t.Fatalf("class %d: offset = %d, want %d", class, got, want)
39
-
}
26
+
if want := int64(944632); got != want {
27
+
t.Fatalf("offset = %d, want %d", got, want)
40
28
}
41
29
}
42
30
···
47
35
}
48
36
49
37
func TestAppImageSquashfsOffsetRejectsType1(t *testing.T) {
50
-
h := elfHeader(2, 1000, 64, 10)
38
+
h := make([]byte, 64)
39
+
copy(h, []byte{0x7f, 'E', 'L', 'F'})
51
40
h[8], h[9], h[10] = 'A', 'I', 1
52
41
if _, err := appImageSquashfsOffset(bytes.NewReader(h)); err == nil {
53
42
t.Fatal("expected error for type-1 AppImage")
-12
cmd/appherder/uninstall_test.go
-12
cmd/appherder/uninstall_test.go
···
28
28
}
29
29
}
30
30
31
-
func TestInstalledPaths(t *testing.T) {
32
-
got := installedPaths("/home/test", "example")
33
-
want := []string{
34
-
"/home/test/AppImages/example.appimage",
35
-
"/home/test/AppImages/.icons/example",
36
-
"/home/test/.local/share/applications/example.desktop",
37
-
}
38
-
if !reflect.DeepEqual(got, want) {
39
-
t.Fatalf("installedPaths() = %#v, want %#v", got, want)
40
-
}
41
-
}
42
-
43
31
func TestUninstallRemovesInstalledFilesOnly(t *testing.T) {
44
32
home := t.TempDir()
45
33
for _, path := range installedPaths(home, "example") {