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package object_test
import (
"bytes"
"fmt"
"testing"
"codeberg.org/lindenii/furgit/internal/testgit"
"codeberg.org/lindenii/furgit/object"
"codeberg.org/lindenii/furgit/objectid"
)
func TestCommitParseFromGit(t *testing.T) {
t.Parallel()
testgit.ForEachAlgorithm(t, func(t *testing.T, algo objectid.Algorithm) { //nolint:thelper
testRepo := testgit.NewRepo(t, testgit.RepoOptions{ObjectFormat: algo, Bare: true})
_, treeID, commitID := testRepo.MakeCommit(t, "subject\n\nbody")
rawBody := testRepo.CatFile(t, "commit", commitID)
commit, err := object.ParseCommit(rawBody, algo)
if err != nil {
t.Fatalf("ParseCommit: %v", err)
}
if commit.Tree != treeID {
t.Fatalf("tree id mismatch: got %s want %s", commit.Tree, treeID)
}
if len(commit.Parents) != 0 {
t.Fatalf("parent count = %d, want 0", len(commit.Parents))
}
if !bytes.Equal(commit.Author.Name, []byte("Test Author")) {
t.Fatalf("author name = %q, want %q", commit.Author.Name, "Test Author")
}
if !bytes.Equal(commit.Committer.Name, []byte("Test Committer")) {
t.Fatalf("committer name = %q, want %q", commit.Committer.Name, "Test Committer")
}
if !bytes.Contains(commit.Message, []byte("subject")) {
t.Fatalf("commit message missing subject: %q", commit.Message)
}
})
}
func TestCommitParseMultipleParents(t *testing.T) {
t.Parallel()
testgit.ForEachAlgorithm(t, func(t *testing.T, algo objectid.Algorithm) { //nolint:thelper
testRepo := testgit.NewRepo(t, testgit.RepoOptions{ObjectFormat: algo, Bare: true})
_, treeID := testRepo.MakeSingleFileTree(t, "file.txt", []byte("merge-content\n"))
parent1 := testRepo.CommitTree(t, treeID, "parent-one")
parent2 := testRepo.CommitTree(t, treeID, "parent-two", parent1)
rawCommit := fmt.Sprintf(
"tree %s\nparent %s\nparent %s\nauthor Test Author <test@example.org> 1234567890 +0000\ncommitter Test Committer <committer@example.org> 1234567890 +0000\n\nMerge commit\n",
treeID,
parent1,
parent2,
)
mergeID := testRepo.HashObject(t, "commit", []byte(rawCommit))
rawBody := testRepo.CatFile(t, "commit", mergeID)
commit, err := object.ParseCommit(rawBody, algo)
if err != nil {
t.Fatalf("ParseCommit(merge): %v", err)
}
if commit.Tree != treeID {
t.Fatalf("merge tree = %s, want %s", commit.Tree, treeID)
}
if len(commit.Parents) != 2 {
t.Fatalf("merge parent count = %d, want 2", len(commit.Parents))
}
if commit.Parents[0] != parent1 {
t.Fatalf("merge parent[0] = %s, want %s", commit.Parents[0], parent1)
}
if commit.Parents[1] != parent2 {
t.Fatalf("merge parent[1] = %s, want %s", commit.Parents[1], parent2)
}
if !bytes.Equal(commit.Message, []byte("Merge commit\n")) {
t.Fatalf("merge message = %q, want %q", commit.Message, "Merge commit\n")
}
})
}
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