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package furgit
import (
"os"
"path/filepath"
"testing"
)
func TestResolveRef(t *testing.T) {
repoPath, cleanup := setupTestRepo(t)
defer cleanup()
workDir, cleanupWork := setupWorkDir(t)
defer cleanupWork()
err := os.WriteFile(filepath.Join(workDir, "test.txt"), []byte("content"), 0o644)
if err != nil {
t.Fatalf("Failed to write test.txt: %v", err)
}
gitCmd(t, repoPath, "--work-tree="+workDir, "add", ".")
gitCmd(t, repoPath, "--work-tree="+workDir, "commit", "-m", "test")
commitHash := gitCmd(t, repoPath, "rev-parse", "HEAD")
gitCmd(t, repoPath, "update-ref", "refs/heads/main", commitHash)
repo, err := OpenRepository(repoPath)
if err != nil {
t.Fatalf("OpenRepository failed: %v", err)
}
defer func() { _ = repo.Close() }()
hashObj, _ := repo.ParseHash(commitHash)
resolved, err := repo.ResolveRef("refs/heads/main")
if err != nil {
t.Fatalf("ResolveRef failed: %v", err)
}
if resolved != hashObj {
t.Errorf("resolved hash: got %s, want %s", resolved, hashObj)
}
gitRevParse := gitCmd(t, repoPath, "rev-parse", "refs/heads/main")
if resolved.String() != gitRevParse {
t.Errorf("furgit resolved %s, git resolved %s", resolved, gitRevParse)
}
_, err = repo.ResolveRef("refs/heads/nonexistent")
if err == nil {
t.Error("expected error for nonexistent ref")
}
}
func TestResolveHEAD(t *testing.T) {
repoPath, cleanup := setupTestRepo(t)
defer cleanup()
workDir, cleanupWork := setupWorkDir(t)
defer cleanupWork()
err := os.WriteFile(filepath.Join(workDir, "test.txt"), []byte("content"), 0o644)
if err != nil {
t.Fatalf("failed to write test.txt: %v", err)
}
gitCmd(t, repoPath, "--work-tree="+workDir, "add", ".")
gitCmd(t, repoPath, "--work-tree="+workDir, "commit", "-m", "test")
commitHash := gitCmd(t, repoPath, "rev-parse", "HEAD")
gitCmd(t, repoPath, "update-ref", "refs/heads/main", commitHash)
gitCmd(t, repoPath, "symbolic-ref", "HEAD", "refs/heads/main")
repo, err := OpenRepository(repoPath)
if err != nil {
t.Fatalf("OpenRepository failed: %v", err)
}
defer func() { _ = repo.Close() }()
ref, err := repo.ResolveHead()
if err != nil {
t.Fatalf("ResolveHEAD failed: %v", err)
}
switch ref.Kind {
case HeadKindSymbolic:
if ref.Ref != "refs/heads/main" {
t.Errorf("HEAD ref: got %q, want %q", ref, "refs/heads/main")
}
gitSymRef := gitCmd(t, repoPath, "symbolic-ref", "HEAD")
if ref.Ref != gitSymRef {
t.Errorf("furgit resolved %v, git resolved %s", ref, gitSymRef)
}
default:
t.Errorf("HEAD kind: got %v, want %v", ref.Kind, HeadKindSymbolic)
}
}
func TestPackedRefs(t *testing.T) {
repoPath, cleanup := setupTestRepo(t)
defer cleanup()
workDir, cleanupWork := setupWorkDir(t)
defer cleanupWork()
err := os.WriteFile(filepath.Join(workDir, "test.txt"), []byte("content1"), 0o644)
if err != nil {
t.Fatalf("failed to write test.txt: %v", err)
}
gitCmd(t, repoPath, "--work-tree="+workDir, "add", ".")
gitCmd(t, repoPath, "--work-tree="+workDir, "commit", "-m", "commit1")
commit1Hash := gitCmd(t, repoPath, "rev-parse", "HEAD")
err = os.WriteFile(filepath.Join(workDir, "test2.txt"), []byte("content2"), 0o644)
if err != nil {
t.Fatalf("failed to write test2.txt: %v", err)
}
gitCmd(t, repoPath, "--work-tree="+workDir, "add", ".")
gitCmd(t, repoPath, "--work-tree="+workDir, "commit", "-m", "commit2")
commit2Hash := gitCmd(t, repoPath, "rev-parse", "HEAD")
gitCmd(t, repoPath, "update-ref", "refs/heads/branch1", commit1Hash)
gitCmd(t, repoPath, "update-ref", "refs/heads/branch2", commit2Hash)
gitCmd(t, repoPath, "update-ref", "refs/tags/v1.0", commit1Hash)
gitCmd(t, repoPath, "pack-refs", "--all")
repo, err := OpenRepository(repoPath)
if err != nil {
t.Fatalf("OpenRepository failed: %v", err)
}
defer func() { _ = repo.Close() }()
hash1, _ := repo.ParseHash(commit1Hash)
hash2, _ := repo.ParseHash(commit2Hash)
resolved1, err := repo.ResolveRef("refs/heads/branch1")
if err != nil {
t.Fatalf("ResolveRef branch1 failed: %v", err)
}
if resolved1 != hash1 {
t.Errorf("branch1: got %s, want %s", resolved1, hash1)
}
gitResolved1 := gitCmd(t, repoPath, "rev-parse", "refs/heads/branch1")
if resolved1.String() != gitResolved1 {
t.Errorf("furgit resolved %s, git resolved %s", resolved1, gitResolved1)
}
resolved2, err := repo.ResolveRef("refs/heads/branch2")
if err != nil {
t.Fatalf("ResolveRef branch2 failed: %v", err)
}
if resolved2 != hash2 {
t.Errorf("branch2: got %s, want %s", resolved2, hash2)
}
resolvedTag, err := repo.ResolveRef("refs/tags/v1.0")
if err != nil {
t.Fatalf("ResolveRef tag failed: %v", err)
}
if resolvedTag != hash1 {
t.Errorf("tag: got %s, want %s", resolvedTag, hash1)
}
}
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