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package commitquery_test
import (
"errors"
"fmt"
"testing"
giterrors "codeberg.org/lindenii/furgit/errors"
"codeberg.org/lindenii/furgit/internal/testgit"
"codeberg.org/lindenii/furgit/object/fetch"
objectid "codeberg.org/lindenii/furgit/object/id"
"codeberg.org/lindenii/furgit/object/store/memory"
objecttree "codeberg.org/lindenii/furgit/object/tree"
objecttype "codeberg.org/lindenii/furgit/object/type"
"codeberg.org/lindenii/furgit/commitquery"
)
// ancestorCommitBody serializes one minimal commit body.
func ancestorCommitBody(tree objectid.ObjectID, parents ...objectid.ObjectID) []byte {
buf := fmt.Appendf(nil, "tree %s\n", tree.String())
for _, parent := range parents {
buf = append(buf, fmt.Appendf(nil, "parent %s\n", parent.String())...)
}
buf = append(buf, []byte("\nmsg\n")...)
return buf
}
// ancestorTagBody serializes one minimal annotated tag body.
func ancestorTagBody(target objectid.ObjectID, targetType objecttype.Type) []byte {
targetName, ok := targetType.Name()
if !ok {
panic("invalid tag target type")
}
return fmt.Appendf(nil, "object %s\ntype %s\ntag t\n\nmsg\n", target.String(), targetName)
}
// mustSerializeAncestorTree serializes one tree or fails the test.
func mustSerializeAncestorTree(tb testing.TB, tree *objecttree.Tree) []byte {
tb.Helper()
body, err := tree.BytesWithoutHeader()
if err != nil {
tb.Fatalf("BytesWithoutHeader: %v", err)
}
return body
}
func TestIs(t *testing.T) {
t.Parallel()
testgit.ForEachAlgorithm(t, func(t *testing.T, algo objectid.Algorithm) { //nolint:thelper
store := memory.New(algo)
blob, err := store.WriteBytesContent(objecttype.TypeBlob, []byte("blob\n"))
if err != nil {
t.Fatal(err)
}
tree, err := store.WriteBytesContent(objecttype.TypeTree, mustSerializeAncestorTree(t, &objecttree.Tree{Entries: []objecttree.TreeEntry{{
Mode: objecttree.FileModeRegular,
Name: []byte("f"),
ID: blob,
}}}))
if err != nil {
t.Fatal(err)
}
c1, err := store.WriteBytesContent(objecttype.TypeCommit, ancestorCommitBody(tree))
if err != nil {
t.Fatal(err)
}
c2, err := store.WriteBytesContent(objecttype.TypeCommit, ancestorCommitBody(tree, c1))
if err != nil {
t.Fatal(err)
}
otherBlob, err := store.WriteBytesContent(objecttype.TypeBlob, []byte("other-blob\n"))
if err != nil {
t.Fatal(err)
}
otherTree, err := store.WriteBytesContent(objecttype.TypeTree, mustSerializeAncestorTree(t, &objecttree.Tree{Entries: []objecttree.TreeEntry{{
Mode: objecttree.FileModeRegular,
Name: []byte("g"),
ID: otherBlob,
}}}))
if err != nil {
t.Fatal(err)
}
c3, err := store.WriteBytesContent(objecttype.TypeCommit, ancestorCommitBody(otherTree))
if err != nil {
t.Fatal(err)
}
tag, err := store.WriteBytesContent(objecttype.TypeTag, ancestorTagBody(c2, objecttype.TypeCommit))
if err != nil {
t.Fatal(err)
}
ok, err := commitquery.New(fetch.New(store), nil).IsAncestor(c1, tag)
if err != nil {
t.Fatalf("Is(c1, tag): %v", err)
}
if !ok {
t.Fatal("expected c1 to be ancestor of tag->c2")
}
ok, err = commitquery.New(fetch.New(store), nil).IsAncestor(c3, c2)
if err != nil {
t.Fatalf("Is(c3, c2): %v", err)
}
if ok {
t.Fatal("did not expect c3 to be ancestor of c2")
}
})
}
func TestIsRejectsNonCommitAfterPeel(t *testing.T) {
t.Parallel()
testgit.ForEachAlgorithm(t, func(t *testing.T, algo objectid.Algorithm) { //nolint:thelper
store := memory.New(algo)
blob, err := store.WriteBytesContent(objecttype.TypeBlob, []byte("blob\n"))
if err != nil {
t.Fatal(err)
}
tree, err := store.WriteBytesContent(objecttype.TypeTree, mustSerializeAncestorTree(t, &objecttree.Tree{Entries: []objecttree.TreeEntry{{
Mode: objecttree.FileModeRegular,
Name: []byte("f"),
ID: blob,
}}}))
if err != nil {
t.Fatal(err)
}
commit, err := store.WriteBytesContent(objecttype.TypeCommit, ancestorCommitBody(tree))
if err != nil {
t.Fatal(err)
}
tagToTree, err := store.WriteBytesContent(objecttype.TypeTag, ancestorTagBody(tree, objecttype.TypeTree))
if err != nil {
t.Fatal(err)
}
_, err = commitquery.New(fetch.New(store), nil).IsAncestor(commit, tagToTree)
if err == nil {
t.Fatal("expected error")
}
if _, ok := errors.AsType[*giterrors.ObjectTypeError](err); !ok {
t.Fatalf("expected ObjectTypeError, got %T (%v)", err, err)
}
})
}
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