diff options
Diffstat (limited to 'tvix/nar-bridge-go/pkg/importer/importer_test.go')
| -rw-r--r-- | tvix/nar-bridge-go/pkg/importer/importer_test.go | 537 |
1 files changed, 537 insertions, 0 deletions
diff --git a/tvix/nar-bridge-go/pkg/importer/importer_test.go b/tvix/nar-bridge-go/pkg/importer/importer_test.go new file mode 100644 index 000000000000..313677084f71 --- /dev/null +++ b/tvix/nar-bridge-go/pkg/importer/importer_test.go @@ -0,0 +1,537 @@ +package importer_test + +import ( + "bytes" + "context" + "errors" + "io" + "os" + "testing" + + castorev1pb "code.tvl.fyi/tvix/castore-go" + "code.tvl.fyi/tvix/nar-bridge-go/pkg/importer" + "github.com/stretchr/testify/require" +) + +func TestSymlink(t *testing.T) { + f, err := os.Open("../../testdata/symlink.nar") + require.NoError(t, err) + + rootNode, narSize, narSha256, err := importer.Import( + context.Background(), + f, + func(blobReader io.Reader) ([]byte, error) { + panic("no file contents expected!") + }, func(directory *castorev1pb.Directory) ([]byte, error) { + panic("no directories expected!") + }, + ) + require.NoError(t, err) + require.Equal(t, &castorev1pb.Node{ + Node: &castorev1pb.Node_Symlink{ + Symlink: &castorev1pb.SymlinkNode{ + Name: []byte(""), + Target: []byte("/nix/store/somewhereelse"), + }, + }, + }, rootNode) + require.Equal(t, []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, + }, narSha256) + require.Equal(t, uint64(136), narSize) +} + +func TestRegular(t *testing.T) { + f, err := os.Open("../../testdata/onebyteregular.nar") + require.NoError(t, err) + + rootNode, narSize, narSha256, err := importer.Import( + context.Background(), + f, + func(blobReader io.Reader) ([]byte, error) { + contents, err := io.ReadAll(blobReader) + require.NoError(t, err, "reading blobReader should not error") + require.Equal(t, []byte{0x01}, contents, "contents read from blobReader should match expectations") + return mustBlobDigest(bytes.NewBuffer(contents)), nil + }, func(directory *castorev1pb.Directory) ([]byte, error) { + panic("no directories expected!") + }, + ) + + // 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, + } + + require.NoError(t, err) + require.Equal(t, &castorev1pb.Node{ + Node: &castorev1pb.Node_File{ + File: &castorev1pb.FileNode{ + Name: []byte(""), + Digest: BLAKE3_DIGEST_0X01, + Size: 1, + Executable: false, + }, + }, + }, rootNode) + require.Equal(t, []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, + }, narSha256) + require.Equal(t, uint64(120), narSize) +} + +func TestEmptyDirectory(t *testing.T) { + f, err := os.Open("../../testdata/emptydirectory.nar") + require.NoError(t, err) + + expectedDirectory := &castorev1pb.Directory{ + Directories: []*castorev1pb.DirectoryNode{}, + Files: []*castorev1pb.FileNode{}, + Symlinks: []*castorev1pb.SymlinkNode{}, + } + rootNode, narSize, narSha256, err := importer.Import( + context.Background(), + f, + func(blobReader io.Reader) ([]byte, error) { + panic("no file contents expected!") + }, func(directory *castorev1pb.Directory) ([]byte, error) { + requireProtoEq(t, expectedDirectory, directory) + return mustDirectoryDigest(directory), nil + }, + ) + require.NoError(t, err) + require.Equal(t, &castorev1pb.Node{ + Node: &castorev1pb.Node_Directory{ + Directory: &castorev1pb.DirectoryNode{ + Name: []byte(""), + Digest: mustDirectoryDigest(expectedDirectory), + Size: expectedDirectory.Size(), + }, + }, + }, rootNode) + require.Equal(t, []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, + }, narSha256) + require.Equal(t, uint64(96), narSize) +} + +func TestFull(t *testing.T) { + f, err := os.Open("../../testdata/nar_1094wph9z4nwlgvsd53abfz8i117ykiv5dwnq9nnhz846s7xqd7d.nar") + require.NoError(t, err) + + expectedDirectoryPaths := []string{ + "/bin", + "/share/man/man1", + "/share/man/man5", + "/share/man/man8", + "/share/man", + "/share", + "/", + } + expectedDirectories := make(map[string]*castorev1pb.Directory, len(expectedDirectoryPaths)) + + // /bin is a leaf directory + expectedDirectories["/bin"] = &castorev1pb.Directory{ + Directories: []*castorev1pb.DirectoryNode{}, + Files: []*castorev1pb.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: []*castorev1pb.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"] = &castorev1pb.Directory{ + Directories: []*castorev1pb.DirectoryNode{}, + Files: []*castorev1pb.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: []*castorev1pb.SymlinkNode{}, + } + + // /share/man/man5 is a leaf directory + expectedDirectories["/share/man/man5"] = &castorev1pb.Directory{ + Directories: []*castorev1pb.DirectoryNode{}, + Files: []*castorev1pb.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: []*castorev1pb.SymlinkNode{}, + } + + // /share/man/man8 is a leaf directory + expectedDirectories["/share/man/man8"] = &castorev1pb.Directory{ + Directories: []*castorev1pb.DirectoryNode{}, + Files: []*castorev1pb.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: []*castorev1pb.SymlinkNode{}, + } + + // /share/man holds /share/man/man{1,5,8}. + expectedDirectories["/share/man"] = &castorev1pb.Directory{ + Directories: []*castorev1pb.DirectoryNode{ + { + Name: []byte("man1"), + Digest: mustDirectoryDigest(expectedDirectories["/share/man/man1"]), + Size: expectedDirectories["/share/man/man1"].Size(), + }, + { + Name: []byte("man5"), + Digest: mustDirectoryDigest(expectedDirectories["/share/man/man5"]), + Size: expectedDirectories["/share/man/man5"].Size(), + }, + { + Name: []byte("man8"), + Digest: mustDirectoryDigest(expectedDirectories["/share/man/man8"]), + Size: expectedDirectories["/share/man/man8"].Size(), + }, + }, + Files: []*castorev1pb.FileNode{}, + Symlinks: []*castorev1pb.SymlinkNode{}, + } + + // /share holds /share/man. + expectedDirectories["/share"] = &castorev1pb.Directory{ + Directories: []*castorev1pb.DirectoryNode{ + { + Name: []byte("man"), + Digest: mustDirectoryDigest(expectedDirectories["/share/man"]), + Size: expectedDirectories["/share/man"].Size(), + }, + }, + Files: []*castorev1pb.FileNode{}, + Symlinks: []*castorev1pb.SymlinkNode{}, + } + + // / holds /bin, /share, and a /sbin symlink. + expectedDirectories["/"] = &castorev1pb.Directory{ + Directories: []*castorev1pb.DirectoryNode{ + { + Name: []byte("bin"), + Digest: mustDirectoryDigest(expectedDirectories["/bin"]), + Size: expectedDirectories["/bin"].Size(), + }, + { + Name: []byte("share"), + Digest: mustDirectoryDigest(expectedDirectories["/share"]), + Size: expectedDirectories["/share"].Size(), + }, + }, + Files: []*castorev1pb.FileNode{}, + Symlinks: []*castorev1pb.SymlinkNode{ + { + Name: []byte("sbin"), + Target: []byte("bin"), + }, + }, + } + // assert we populated the two fixtures properly + require.Equal(t, len(expectedDirectoryPaths), len(expectedDirectories)) + + numDirectoriesReceived := 0 + + rootNode, narSize, narSha256, err := importer.Import( + context.Background(), + f, + func(blobReader io.Reader) ([]byte, 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. + return mustBlobDigest(blobReader), nil + }, func(directory *castorev1pb.Directory) ([]byte, 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 mustDirectoryDigest(directory), nil + }, + ) + require.NoError(t, err) + require.Equal(t, &castorev1pb.Node{ + Node: &castorev1pb.Node_Directory{ + Directory: &castorev1pb.DirectoryNode{ + Name: []byte(""), + Digest: mustDirectoryDigest(expectedDirectories["/"]), + Size: expectedDirectories["/"].Size(), + }, + }, + }, rootNode) + require.Equal(t, []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, + }, narSha256) + require.Equal(t, uint64(464152), narSize) +} + +// 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 blob", func(t *testing.T) { + // Pick an example NAR with a regular file. + f, err := os.Open("../../testdata/onebyteregular.nar") + require.NoError(t, err) + + targetErr := errors.New("expected error") + + _, _, _, err = importer.Import( + context.Background(), + f, + func(blobReader io.Reader) ([]byte, error) { + return nil, targetErr + }, func(directory *castorev1pb.Directory) ([]byte, 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) + + targetErr := errors.New("expected error") + + _, _, _, err = importer.Import( + context.Background(), + f, + func(blobReader io.Reader) ([]byte, error) { + panic("no file contents expected!") + }, func(directory *castorev1pb.Directory) ([]byte, error) { + return nil, targetErr + }, + ) + require.ErrorIs(t, err, targetErr) + }) +} + +// TestPopDirectories is a regression test that ensures we handle the directory +// stack properly. +// +// This test case looks like: +// +// / (dir) +// /test (dir) +// /test/tested (file) +// /tested (file) +// +// We used to have a bug where the second `tested` file would appear as if +// it was in the `/test` dir because it has that dir as a string prefix. +func TestPopDirectories(t *testing.T) { + f, err := os.Open("../../testdata/popdirectories.nar") + require.NoError(t, err) + defer f.Close() + + _, _, _, err = importer.Import( + context.Background(), + f, + func(blobReader io.Reader) ([]byte, error) { return mustBlobDigest(blobReader), nil }, + func(directory *castorev1pb.Directory) ([]byte, error) { + require.NoError(t, directory.Validate(), "directory validation shouldn't error") + return mustDirectoryDigest(directory), nil + }, + ) + require.NoError(t, err) +} |