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package loose_test
import (
"io"
"os"
"testing"
"codeberg.org/lindenii/furgit/internal/testgit"
objectheader "codeberg.org/lindenii/furgit/object/header"
objectid "codeberg.org/lindenii/furgit/object/id"
objecttype "codeberg.org/lindenii/furgit/object/type"
"codeberg.org/lindenii/furgit/objectstore/loose"
)
func openLooseStore(t *testing.T, testRepo *testgit.TestRepo, algo objectid.Algorithm) *loose.Store {
t.Helper()
root := testRepo.OpenObjectsRoot(t)
store, err := loose.New(root, algo)
if err != nil {
t.Fatalf("loose.New: %v", err)
}
return store
}
func mustReadAllAndClose(t *testing.T, reader io.ReadCloser) []byte {
t.Helper()
data, err := io.ReadAll(reader)
if err != nil {
_ = reader.Close()
t.Fatalf("ReadAll: %v", err)
}
err = reader.Close()
if err != nil {
t.Fatalf("Close: %v", err)
}
return data
}
func expectedRawObject(t *testing.T, testRepo *testgit.TestRepo, id objectid.ObjectID) (objecttype.Type, []byte, []byte) {
t.Helper()
typeName := testRepo.Run(t, "cat-file", "-t", id.String())
ty, ok := objecttype.ParseName(typeName)
if !ok {
t.Fatalf("ParseName(%q) failed", typeName)
}
body := testRepo.CatFile(t, typeName, id)
header, ok := objectheader.Encode(ty, int64(len(body)))
if !ok {
t.Fatalf("objectheader.Encode failed")
}
raw := make([]byte, len(header)+len(body))
copy(raw, header)
copy(raw[len(header):], body)
return ty, body, raw
}
func corruptLooseObjectTrailer(t *testing.T, testRepo *testgit.TestRepo, id objectid.ObjectID) {
t.Helper()
root := testRepo.OpenObjectsRoot(t)
hex := id.String()
relPath := hex[:2] + "/" + hex[2:]
file, err := root.OpenFile(relPath, os.O_RDWR, 0)
if err != nil {
t.Fatalf("OpenFile(%q): %v", relPath, err)
}
defer func() { _ = file.Close() }()
info, err := file.Stat()
if err != nil {
t.Fatalf("Stat(%q): %v", relPath, err)
}
if info.Size() == 0 {
t.Fatalf("corrupt trailer on empty file %q", relPath)
}
last := make([]byte, 1)
_, err = file.ReadAt(last, info.Size()-1)
if err != nil {
t.Fatalf("ReadAt(%q): %v", relPath, err)
}
last[0] ^= 0xff
_, err = file.WriteAt(last, info.Size()-1)
if err != nil {
t.Fatalf("WriteAt(%q): %v", relPath, err)
}
}
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