package reader_test
import (
"context"
"errors"
"io"
"os"
"testing"
"code.tvl.fyi/tvix/nar-bridge/pkg/reader"
storev1pb "code.tvl.fyi/tvix/store/protos"
"github.com/google/go-cmp/cmp"
"github.com/stretchr/testify/require"
"google.golang.org/protobuf/testing/protocmp"
)
func requireProtoEq(t *testing.T, expected interface{}, actual interface{}) {
if diff := cmp.Diff(expected, actual, protocmp.Transform()); diff != "" {
t.Errorf("unexpected difference:\n%v", diff)
}
}
func mustDigest(d *storev1pb.Directory) []byte {
dgst, err := d.Digest()
if err != nil {
panic(err)
}
return dgst
}
func TestSymlink(t *testing.T) {
f, err := os.Open("../../testdata/symlink.nar")
require.NoError(t, err)
r := reader.New(f)
actualPathInfo, err := r.Import(
context.Background(),
func(fileReader io.Reader) error {
panic("no file contents expected!")
}, func(directory *storev1pb.Directory) error {
panic("no directories expected!")
},
)
require.NoError(t, err)
expectedPathInfo := &storev1pb.PathInfo{
Node: &storev1pb.Node{
Node: &storev1pb.Node_Symlink{
Symlink: &storev1pb.SymlinkNode{
Name: []byte(""),
Target: []byte("/nix/store/somewhereelse"),
},
},
},
References: [][]byte{},
Narinfo: &storev1pb.NARInfo{
NarSize: 136,
NarSha256: []byte{
0x09, 0x7d, 0x39, 0x7e, 0x9b, 0x58, 0x26, 0x38, 0x4e, 0xaa, 0x16, 0xc4, 0x57, 0x71, 0x5d, 0x1c, 0x1a, 0x51, 0x67, 0x03, 0x13, 0xea, 0xd0, 0xf5, 0x85, 0x66, 0xe0, 0xb2, 0x32, 0x53, 0x9c, 0xf1,
},
Signatures: []*storev1pb.NARInfo_Signature{},
ReferenceNames: []string{},
},
}
requireProtoEq(t, expectedPathInfo, actualPathInfo)
}
func TestRegular(t *testing.T) {
f, err := os.Open("../../testdata/onebyteregular.nar")
require.NoError(t, err)
r := reader.New(f)
actualPathInfo, err := r.Import(
context.Background(),
func(fileReader io.Reader) error {
contents, err := io.ReadAll(fileReader)
require.NoError(t, err, "reading fileReader should not error")
require.Equal(t, []byte{0x01}, contents, "contents read from fileReader should match expectations")
return nil
}, func(directory *storev1pb.Directory) error {
panic("no directories expected!")
},
)
require.NoError(t, err)
// The blake3 digest of the 0x01 byte.
BLAKE3_DIGEST_0X01 := []byte{
0x48, 0xfc, 0x72, 0x1f, 0xbb, 0xc1, 0x72, 0xe0, 0x92, 0x5f, 0xa2, 0x7a, 0xf1, 0x67, 0x1d,
0xe2, 0x25, 0xba, 0x92, 0x71, 0x34, 0x80, 0x29, 0x98, 0xb1, 0x0a, 0x15, 0x68, 0xa1, 0x88,
0x65, 0x2b,
}
expectedPathInfo := &storev1pb.PathInfo{
Node: &storev1pb.Node{
Node: &storev1pb.Node_File{
File: &storev1pb.FileNode{
Name: []byte(""),
Digest: BLAKE3_DIGEST_0X01,
Size: 1,
Executable: false,
},
},
},
References: [][]byte{},
Narinfo: &storev1pb.NARInfo{
NarSize: 120,
NarSha256: []byte{
0x73, 0x08, 0x50, 0xa8, 0x11, 0x25, 0x9d, 0xbf, 0x3a, 0x68, 0xdc, 0x2e, 0xe8, 0x7a, 0x79, 0xaa, 0x6c, 0xae, 0x9f, 0x71, 0x37, 0x5e, 0xdf, 0x39, 0x6f, 0x9d, 0x7a, 0x91, 0xfb, 0xe9, 0x13, 0x4d,
},
Signatures: []*storev1pb.NARInfo_Signature{},
ReferenceNames: []string{},
},
}
requireProtoEq(t, expectedPathInfo, actualPathInfo)
}
func TestEmptyDirectory(t *testing.T) {
f, err := os.Open("../../testdata/emptydirectory.nar")
require.NoError(t, err)
r := reader.New(f)
expectedDirectory := &storev1pb.Directory{
Directories: []*storev1pb.DirectoryNode{},
Files: []*storev1pb.FileNode{},
Symlinks: []*storev1pb.SymlinkNode{},
}
actualPathInfo, err := r.Import(
context.Background(),
func(fileReader io.Reader) error {
panic("no file contents expected!")
}, func(directory *storev1pb.Directory) error {
requireProtoEq(t, expectedDirectory, directory)
return nil
},
)
require.NoError(t, err)
expectedPathInfo := &storev1pb.PathInfo{
Node: &storev1pb.Node{
Node: &storev1pb.Node_Directory{
Directory: &storev1pb.DirectoryNode{
Name: []byte(""),
Digest: mustDigest(expectedDirectory),
Size: expectedDirectory.Size(),
},
},
},
References: [][]byte{},
Narinfo: &storev1pb.NARInfo{
NarSize: 96,
NarSha256: []byte{
0xa5, 0x0a, 0x5a, 0xb6, 0xd9, 0x92, 0xf5, 0x59, 0x8e, 0xdd, 0x92, 0x10, 0x50, 0x59, 0xfa, 0xe9, 0xac, 0xfc, 0x19, 0x29, 0x81, 0xe0, 0x8b, 0xd8, 0x85, 0x34, 0xc2, 0x16, 0x7e, 0x92, 0x52, 0x6a,
},
Signatures: []*storev1pb.NARInfo_Signature{},
ReferenceNames: []string{},
},
}
requireProtoEq(t, expectedPathInfo, actualPathInfo)
}
func TestFull(t *testing.T) {
f, err := os.Open("../../testdata/nar_1094wph9z4nwlgvsd53abfz8i117ykiv5dwnq9nnhz846s7xqd7d.nar")
require.NoError(t, err)
r := reader.New(f)
expectedDirectoryPaths := []string{
"/bin",
"/share/man/man1",
"/share/man/man5",
"/share/man/man8",
"/share/man",
"/share",
"/",
}
expectedDirectories := make(map[string]*storev1pb.Directory, len(expectedDirectoryPaths))
// /bin is a leaf directory
expectedDirectories["/bin"] = &storev1pb.Directory{
Directories: []*storev1pb.DirectoryNode{},
Files: []*storev1pb.FileNode{
{
Name: []byte("arp"),
Digest: []byte{
0xfb, 0xc4, 0x61, 0x4a, 0x29, 0x27, 0x11, 0xcb, 0xcc, 0xe4, 0x99, 0x81, 0x9c, 0xf0, 0xa9, 0x17, 0xf7, 0xd0, 0x91, 0xbe, 0xea, 0x08, 0xcb, 0x5b, 0xaa, 0x76, 0x76, 0xf5, 0xee, 0x4f, 0x82, 0xbb,
},
Size: 55288,
Executable: true,
},
{
Name: []byte("hostname"),
Digest: []byte{
0x9c, 0x6a, 0xe4, 0xb5, 0xe4, 0x6c, 0xb5, 0x67, 0x45, 0x0e, 0xaa, 0x2a, 0xd8, 0xdd, 0x9b, 0x38, 0xd7, 0xed, 0x01, 0x02, 0x84, 0xf7, 0x26, 0xe1, 0xc7, 0xf3, 0x1c, 0xeb, 0xaa, 0x8a, 0x01, 0x30,
},
Size: 17704,
Executable: true,
},
{
Name: []byte("ifconfig"),
Digest: []byte{
0x25, 0xbe, 0x3b, 0x1d, 0xf4, 0x1a, 0x45, 0x42, 0x79, 0x09, 0x2c, 0x2a, 0x83, 0xf0, 0x0b, 0xff, 0xe8, 0xc0, 0x9c, 0x26, 0x98, 0x70, 0x15, 0x4d, 0xa8, 0xca, 0x05, 0xfe, 0x92, 0x68, 0x35, 0x2e,
},
Size: 72576,
Executable: true,
},
{
Name: []byte("nameif"),
Digest: []byte{
0x8e, 0xaa, 0xc5, 0xdb, 0x71, 0x08, 0x8e, 0xe5, 0xe6, 0x30, 0x1f, 0x2c, 0x3a, 0xf2, 0x42, 0x39, 0x0c, 0x57, 0x15, 0xaf, 0x50, 0xaa, 0x1c, 0xdf, 0x84, 0x22, 0x08, 0x77, 0x03, 0x54, 0x62, 0xb1,
},
Size: 18776,
Executable: true,
},
{
Name: []byte("netstat"),
Digest: []byte{
0x13, 0x34, 0x7e, 0xdd, 0x2a, 0x9a, 0x17, 0x0b, 0x3f, 0xc7, 0x0a, 0xe4, 0x92, 0x89, 0x25, 0x9f, 0xaa, 0xb5, 0x05, 0x6b, 0x24, 0xa7, 0x91, 0xeb, 0xaf, 0xf9, 0xe9, 0x35, 0x56, 0xaa, 0x2f, 0xb2,
},
Size: 131784,
Executable: true,
},
{
Name: []byte("plipconfig"),
Digest: []byte{
0x19, 0x7c, 0x80, 0xdc, 0x81, 0xdc, 0xb4, 0xc0, 0x45, 0xe1, 0xf9, 0x76, 0x51, 0x4f, 0x50, 0xbf, 0xa4, 0x69, 0x51, 0x9a, 0xd4, 0xa9, 0xe7, 0xaa, 0xe7, 0x0d, 0x53, 0x32, 0xff, 0x28, 0x40, 0x60,
},
Size: 13160,
Executable: true,
},
{
Name: []byte("rarp"),
Digest: []byte{
0x08, 0x85, 0xb4, 0x85, 0x03, 0x2b, 0x3c, 0x7a, 0x3e, 0x24, 0x4c, 0xf8, 0xcc, 0x45, 0x01, 0x9e, 0x79, 0x43, 0x8c, 0x6f, 0x5e, 0x32, 0x46, 0x54, 0xb6, 0x68, 0x91, 0x8e, 0xa0, 0xcb, 0x6e, 0x0d,
},
Size: 30384,
Executable: true,
},
{
Name: []byte("route"),
Digest: []byte{
0x4d, 0x14, 0x20, 0x89, 0x9e, 0x76, 0xf4, 0xe2, 0x92, 0x53, 0xee, 0x9b, 0x78, 0x7d, 0x23, 0x80, 0x6c, 0xff, 0xe6, 0x33, 0xdc, 0x4a, 0x10, 0x29, 0x39, 0x02, 0xa0, 0x60, 0xff, 0xe2, 0xbb, 0xd7,
},
Size: 61928,
Executable: true,
},
{
Name: []byte("slattach"),
Digest: []byte{
0xfb, 0x25, 0xc3, 0x73, 0xb7, 0xb1, 0x0b, 0x25, 0xcd, 0x7b, 0x62, 0xf6, 0x71, 0x83, 0xfe, 0x36, 0x80, 0xf6, 0x48, 0xc3, 0xdb, 0xd8, 0x0c, 0xfe, 0xb8, 0xd3, 0xda, 0x32, 0x9b, 0x47, 0x4b, 0x05,
},
Size: 35672,
Executable: true,
},
},
Symlinks: []*storev1pb.SymlinkNode{
{
Name: []byte("dnsdomainname"),
Target: []byte("hostname"),
},
{
Name: []byte("domainname"),
Target: []byte("hostname"),
},
{
Name: []byte("nisdomainname"),
Target: []byte("hostname"),
},
{
Name: []byte("ypdomainname"),
Target: []byte("hostname"),
},
},
}
// /share/man/man1 is a leaf directory.
// The parser traversed over /sbin, but only added it to / which is still on the stack.
expectedDirectories["/share/man/man1"] = &storev1pb.Directory{
Directories: []*storev1pb.DirectoryNode{},
Files: []*storev1pb.FileNode{
{
Name: []byte("dnsdomainname.1.gz"),
Digest: []byte{
0x98, 0x8a, 0xbd, 0xfa, 0x64, 0xd5, 0xb9, 0x27, 0xfe, 0x37, 0x43, 0x56, 0xb3, 0x18, 0xc7, 0x2b, 0xcb, 0xe3, 0x17, 0x1c, 0x17, 0xf4, 0x17, 0xeb, 0x4a, 0xa4, 0x99, 0x64, 0x39, 0xca, 0x2d, 0xee,
},
Size: 40,
Executable: false,
},
{
Name: []byte("domainname.1.gz"),
Digest: []byte{
0x98, 0x8a, 0xbd, 0xfa, 0x64, 0xd5, 0xb9, 0x27, 0xfe, 0x37, 0x43, 0x56, 0xb3, 0x18, 0xc7, 0x2b, 0xcb, 0xe3, 0x17, 0x1c, 0x17, 0xf4, 0x17, 0xeb, 0x4a, 0xa4, 0x99, 0x64, 0x39, 0xca, 0x2d, 0xee,
},
Size: 40,
Executable: false,
},
{
Name: []byte("hostname.1.gz"),
Digest: []byte{
0xbf, 0x89, 0xe6, 0x28, 0x00, 0x24, 0x66, 0x79, 0x70, 0x04, 0x38, 0xd6, 0xdd, 0x9d, 0xf6, 0x0e, 0x0d, 0xee, 0x00, 0xf7, 0x64, 0x4f, 0x05, 0x08, 0x9d, 0xf0, 0x36, 0xde, 0x85, 0xf4, 0x75, 0xdb,
},
Size: 1660,
Executable: false,
},
{
Name: []byte("nisdomainname.1.gz"),
Digest: []byte{
0x98, 0x8a, 0xbd, 0xfa, 0x64, 0xd5, 0xb9, 0x27, 0xfe, 0x37, 0x43, 0x56, 0xb3, 0x18, 0xc7, 0x2b, 0xcb, 0xe3, 0x17, 0x1c, 0x17, 0xf4, 0x17, 0xeb, 0x4a, 0xa4, 0x99, 0x64, 0x39, 0xca, 0x2d, 0xee,
},
Size: 40,
Executable: false,
},
{
Name: []byte("ypdomainname.1.gz"),
Digest: []byte{
0x98, 0x8a, 0xbd, 0xfa, 0x64, 0xd5, 0xb9, 0x27, 0xfe, 0x37, 0x43, 0x56, 0xb3, 0x18, 0xc7, 0x2b, 0xcb, 0xe3, 0x17, 0x1c, 0x17, 0xf4, 0x17, 0xeb, 0x4a, 0xa4, 0x99, 0x64, 0x39, 0xca, 0x2d, 0xee,
},
Size: 40,
Executable: false,
},
},
Symlinks: []*storev1pb.SymlinkNode{},
}
// /share/man/man5 is a leaf directory
expectedDirectories["/share/man/man5"] = &storev1pb.Directory{
Directories: []*storev1pb.DirectoryNode{},
Files: []*storev1pb.FileNode{
{
Name: []byte("ethers.5.gz"),
Digest: []byte{
0x42, 0x63, 0x8c, 0xc4, 0x18, 0x93, 0xcf, 0x60, 0xd6, 0xff, 0x43, 0xbc, 0x16, 0xb4, 0xfd, 0x22, 0xd2, 0xf2, 0x05, 0x0b, 0x52, 0xdc, 0x6a, 0x6b, 0xff, 0x34, 0xe2, 0x6a, 0x38, 0x3a, 0x07, 0xe3,
},
Size: 563,
Executable: false,
},
},
Symlinks: []*storev1pb.SymlinkNode{},
}
// /share/man/man8 is a leaf directory
expectedDirectories["/share/man/man8"] = &storev1pb.Directory{
Directories: []*storev1pb.DirectoryNode{},
Files: []*storev1pb.FileNode{
{
Name: []byte("arp.8.gz"),
Digest: []byte{
0xf5, 0x35, 0x4e, 0xf5, 0xf6, 0x44, 0xf7, 0x52, 0x0f, 0x42, 0xa0, 0x26, 0x51, 0xd9, 0x89, 0xf9, 0x68, 0xf2, 0xef, 0xeb, 0xba, 0xe1, 0xf4, 0x55, 0x01, 0x57, 0x77, 0xb7, 0x68, 0x55, 0x92, 0xef,
},
Size: 2464,
Executable: false,
},
{
Name: []byte("ifconfig.8.gz"),
Digest: []byte{
0x18, 0x65, 0x25, 0x11, 0x32, 0xee, 0x77, 0x91, 0x35, 0x4c, 0x3c, 0x24, 0xdb, 0xaf, 0x66, 0xdb, 0xfc, 0x17, 0x7b, 0xba, 0xe1, 0x3d, 0x05, 0xd2, 0xca, 0x6e, 0x2c, 0xe4, 0xef, 0xb8, 0xa8, 0xbe,
},
Size: 3382,
Executable: false,
},
{
Name: []byte("nameif.8.gz"),
Digest: []byte{
0x73, 0xc1, 0x27, 0xe8, 0x3b, 0xa8, 0x49, 0xdc, 0x0e, 0xdf, 0x70, 0x5f, 0xaf, 0x06, 0x01, 0x2c, 0x62, 0xe9, 0x18, 0x67, 0x01, 0x94, 0x64, 0x26, 0xca, 0x95, 0x22, 0xc0, 0xdc, 0xe4, 0x42, 0xb6,
},
Size: 523,
Executable: false,
},
{
Name: []byte("netstat.8.gz"),
Digest: []byte{
0xc0, 0x86, 0x43, 0x4a, 0x43, 0x57, 0xaa, 0x84, 0xa7, 0x24, 0xa0, 0x7c, 0x65, 0x38, 0x46, 0x1c, 0xf2, 0x45, 0xa2, 0xef, 0x12, 0x44, 0x18, 0xba, 0x52, 0x56, 0xe9, 0x8e, 0x6a, 0x0f, 0x70, 0x63,
},
Size: 4284,
Executable: false,
},
{
Name: []byte("plipconfig.8.gz"),
Digest: []byte{
0x2a, 0xd9, 0x1d, 0xa8, 0x9e, 0x0d, 0x05, 0xd0, 0xb0, 0x49, 0xaa, 0x64, 0xba, 0x29, 0x28, 0xc6, 0x45, 0xe1, 0xbb, 0x5e, 0x72, 0x8d, 0x48, 0x7b, 0x09, 0x4f, 0x0a, 0x82, 0x1e, 0x26, 0x83, 0xab,
},
Size: 889,
Executable: false,
},
{
Name: []byte("rarp.8.gz"),
Digest: []byte{
0x3d, 0x51, 0xc1, 0xd0, 0x6a, 0x59, 0x1e, 0x6d, 0x9a, 0xf5, 0x06, 0xd2, 0xe7, 0x7d, 0x7d, 0xd0, 0x70, 0x3d, 0x84, 0x64, 0xc3, 0x7d, 0xfb, 0x10, 0x84, 0x3b, 0xe1, 0xa9, 0xdf, 0x46, 0xee, 0x9f,
},
Size: 1198,
Executable: false,
},
{
Name: []byte("route.8.gz"),
Digest: []byte{
0x2a, 0x5a, 0x4b, 0x4f, 0x91, 0xf2, 0x78, 0xe4, 0xa9, 0x25, 0xb2, 0x7f, 0xa7, 0x2a, 0xc0, 0x8a, 0x4a, 0x65, 0xc9, 0x5f, 0x07, 0xa0, 0x48, 0x44, 0xeb, 0x46, 0xf9, 0xc9, 0xe1, 0x17, 0x96, 0x21,
},
Size: 3525,
Executable: false,
},
{
Name: []byte("slattach.8.gz"),
Digest: []byte{
0x3f, 0x05, 0x6b, 0x20, 0xe1, 0xe4, 0xf0, 0xba, 0x16, 0x15, 0x66, 0x6b, 0x57, 0x96, 0xe9, 0x9d, 0x83, 0xa8, 0x20, 0xaf, 0x8a, 0xca, 0x16, 0x4d, 0xa2, 0x6d, 0x94, 0x8e, 0xca, 0x91, 0x8f, 0xd4,
},
Size: 1441,
Executable: false,
},
},
Symlinks: []*storev1pb.SymlinkNode{},
}
// /share/man holds /share/man/man{1,5,8}.
expectedDirectories["/share/man"] = &storev1pb.Directory{
Directories: []*storev1pb.DirectoryNode{
{
Name: []byte("man1"),
Digest: mustDigest(expectedDirectories["/share/man/man1"]),
Size: expectedDirectories["/share/man/man1"].Size(),
},
{
Name: []byte("man5"),
Digest: mustDigest(expectedDirectories["/share/man/man5"]),
Size: expectedDirectories["/share/man/man5"].Size(),
},
{
Name: []byte("man8"),
Digest: mustDigest(expectedDirectories["/share/man/man8"]),
Size: expectedDirectories["/share/man/man8"].Size(),
},
},
Files: []*storev1pb.FileNode{},
Symlinks: []*storev1pb.SymlinkNode{},
}
// /share holds /share/man.
expectedDirectories["/share"] = &storev1pb.Directory{
Directories: []*storev1pb.DirectoryNode{
{
Name: []byte("man"),
Digest: mustDigest(expectedDirectories["/share/man"]),
Size: expectedDirectories["/share/man"].Size(),
},
},
Files: []*storev1pb.FileNode{},
Symlinks: []*storev1pb.SymlinkNode{},
}
// / holds /bin, /share, and a /sbin symlink.
expectedDirectories["/"] = &storev1pb.Directory{
Directories: []*storev1pb.DirectoryNode{
{
Name: []byte("bin"),
Digest: mustDigest(expectedDirectories["/bin"]),
Size: expectedDirectories["/bin"].Size(),
},
{
Name: []byte("share"),
Digest: mustDigest(expectedDirectories["/share"]),
Size: expectedDirectories["/share"].Size(),
},
},
Files: []*storev1pb.FileNode{},
Symlinks: []*storev1pb.SymlinkNode{
{
Name: []byte("sbin"),
Target: []byte("bin"),
},
},
}
// assert we populated the two fixtures properly
require.Equal(t, len(expectedDirectoryPaths), len(expectedDirectories))
numDirectoriesReceived := 0
actualPathInfo, err := r.Import(
context.Background(),
func(fileReader io.Reader) error {
// Don't really bother reading and comparing the contents here,
// We already verify the right digests are produced by comparing the
// directoryCb calls, and TestRegular ensures the reader works.
// This also covers the case when the client doesn't read from the reader, and that the
// importer will take care of reading all the way to the end no matter what.
return nil
}, func(directory *storev1pb.Directory) error {
// use actualDirectoryOrder to look up the Directory object we expect at this specific invocation.
currentDirectoryPath := expectedDirectoryPaths[numDirectoriesReceived]
expectedDirectory, found := expectedDirectories[currentDirectoryPath]
require.True(t, found, "must find the current directory")
requireProtoEq(t, expectedDirectory, directory)
numDirectoriesReceived += 1
return nil
},
)
require.NoError(t, err)
expectedPathInfo := &storev1pb.PathInfo{
Node: &storev1pb.Node{
Node: &storev1pb.Node_Directory{
Directory: &storev1pb.DirectoryNode{
Name: []byte(""),
Digest: mustDigest(expectedDirectories["/"]),
Size: expectedDirectories["/"].Size(),
},
},
},
References: [][]byte{},
Narinfo: &storev1pb.NARInfo{
NarSize: 464152,
NarSha256: []byte{
0xc6, 0xe1, 0x55, 0xb3, 0x45, 0x6e, 0x30, 0xb7, 0x61, 0x22, 0x63, 0xec, 0x09, 0x50, 0x70, 0x81, 0x1c, 0xaf, 0x8a, 0xbf, 0xd5, 0x9f, 0xaa, 0x72, 0xab, 0x82, 0xa5, 0x92, 0xef, 0xde, 0xb2, 0x53,
},
Signatures: []*storev1pb.NARInfo_Signature{},
ReferenceNames: []string{},
},
}
requireProtoEq(t, expectedPathInfo, actualPathInfo)
}
// TestCallbackErrors ensures that errors returned from the callback function
// bubble up to the importer process, and are not ignored.
func TestCallbackErrors(t *testing.T) {
t.Run("callback file", func(t *testing.T) {
// Pick an example NAR with a regular file.
f, err := os.Open("../../testdata/onebyteregular.nar")
require.NoError(t, err)
r := reader.New(f)
targetErr := errors.New("expected error")
_, err = r.Import(
context.Background(),
func(fileReader io.Reader) error {
return targetErr
}, func(directory *storev1pb.Directory) error {
panic("no directories expected!")
},
)
require.ErrorIs(t, err, targetErr)
})
t.Run("callback directory", func(t *testing.T) {
// Pick an example NAR with a directory node
f, err := os.Open("../../testdata/emptydirectory.nar")
require.NoError(t, err)
r := reader.New(f)
targetErr := errors.New("expected error")
_, err = r.Import(
context.Background(),
func(fileReader io.Reader) error {
panic("no file contents expected!")
}, func(directory *storev1pb.Directory) error {
return targetErr
},
)
require.ErrorIs(t, err, targetErr)
})
}
