From 120509f0aad0e945d8e0fc90a822fa904fb70b68 Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Fri, 6 Mar 2026 01:48:44 +0800
Subject: repository: Refactor

---
 repository/refs_test.go | 139 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 repository/refs_test.go

(limited to 'repository/refs_test.go')

diff --git a/repository/refs_test.go b/repository/refs_test.go
new file mode 100644
index 00000000..8d8c604e
--- /dev/null
+++ b/repository/refs_test.go
@@ -0,0 +1,139 @@
+package repository_test
+
+import (
+	"os"
+	"testing"
+
+	"codeberg.org/lindenii/furgit/internal/testgit"
+	"codeberg.org/lindenii/furgit/objectid"
+	"codeberg.org/lindenii/furgit/objecttype"
+	"codeberg.org/lindenii/furgit/ref"
+	"codeberg.org/lindenii/furgit/repository"
+)
+
+func TestOpenFilesRefFormat(t *testing.T) {
+	t.Parallel()
+
+	testgit.ForEachAlgorithm(t, func(t *testing.T, algo objectid.Algorithm) { //nolint:thelper
+		repoHarness := testgit.NewRepo(t, testgit.RepoOptions{
+			ObjectFormat: algo,
+			Bare:         true,
+			RefFormat:    "files",
+		})
+
+		_, _, commitID := repoHarness.MakeCommit(t, "files refs")
+		repoHarness.UpdateRef(t, "refs/heads/main", commitID)
+		repoHarness.SymbolicRef(t, "HEAD", "refs/heads/main")
+
+		root, err := os.OpenRoot(repoHarness.Dir())
+		if err != nil {
+			t.Fatalf("os.OpenRoot: %v", err)
+		}
+
+		defer func() { _ = root.Close() }()
+
+		repo, err := repository.Open(root)
+		if err != nil {
+			t.Fatalf("repository.Open: %v", err)
+		}
+
+		defer func() { _ = repo.Close() }()
+
+		if repo.Algorithm() != algo {
+			t.Fatalf("Algorithm = %v, want %v", repo.Algorithm(), algo)
+		}
+
+		headerType, headerSize, err := repo.Objects().ReadHeader(commitID)
+		if err != nil {
+			t.Fatalf("ReadHeader(commit): %v", err)
+		}
+
+		if headerType != objecttype.TypeCommit {
+			t.Fatalf("ReadHeader(commit) type = %v, want %v", headerType, objecttype.TypeCommit)
+		}
+
+		if headerSize <= 0 {
+			t.Fatalf("ReadHeader(commit) size = %d, want > 0", headerSize)
+		}
+
+		resolved, err := repo.Refs().Resolve("refs/heads/main")
+		if err != nil {
+			t.Fatalf("Resolve(refs/heads/main): %v", err)
+		}
+
+		detached, ok := resolved.(ref.Detached)
+		if !ok {
+			t.Fatalf("Resolve(refs/heads/main) type = %T, want ref.Detached", resolved)
+		}
+
+		if detached.ID != commitID {
+			t.Fatalf("Resolve(refs/heads/main) id = %s, want %s", detached.ID, commitID)
+		}
+
+		head, err := repo.Refs().ResolveFully("HEAD")
+		if err != nil {
+			t.Fatalf("ResolveFully(HEAD): %v", err)
+		}
+
+		if head.ID != commitID {
+			t.Fatalf("ResolveFully(HEAD) id = %s, want %s", head.ID, commitID)
+		}
+	})
+}
+
+func TestOpenFilesWithPackedRefs(t *testing.T) {
+	t.Parallel()
+
+	testgit.ForEachAlgorithm(t, func(t *testing.T, algo objectid.Algorithm) { //nolint:thelper
+		repoHarness := newRepoForRefs(t, algo, "files")
+		commitID := writeMainAndHead(t, repoHarness)
+		repoHarness.PackRefs(t, "--all", "--prune")
+		assertResolveFully(t, repoHarness, "refs/heads/main", commitID)
+	})
+}
+
+func newRepoForRefs(t *testing.T, algo objectid.Algorithm, refFormat string) *testgit.TestRepo {
+	t.Helper()
+
+	return testgit.NewRepo(t, testgit.RepoOptions{
+		ObjectFormat: algo,
+		Bare:         true,
+		RefFormat:    refFormat,
+	})
+}
+
+func writeMainAndHead(t *testing.T, repoHarness *testgit.TestRepo) objectid.ObjectID {
+	t.Helper()
+	_, _, commitID := repoHarness.MakeCommit(t, "refs")
+	repoHarness.UpdateRef(t, "refs/heads/main", commitID)
+	repoHarness.SymbolicRef(t, "HEAD", "refs/heads/main")
+
+	return commitID
+}
+
+func assertResolveFully(t *testing.T, repoHarness *testgit.TestRepo, name string, want objectid.ObjectID) {
+	t.Helper()
+
+	root, err := os.OpenRoot(repoHarness.Dir())
+	if err != nil {
+		t.Fatalf("os.OpenRoot: %v", err)
+	}
+
+	defer func() { _ = root.Close() }()
+
+	repo, err := repository.Open(root)
+	if err != nil {
+		t.Fatalf("repository.Open: %v", err)
+	}
+
+	defer func() { _ = repo.Close() }()
+
+	resolved, err := repo.Refs().ResolveFully(name)
+	if err != nil {
+		t.Fatalf("ResolveFully(%s): %v", name, err)
+	}
+
+	if resolved.ID != want {
+		t.Fatalf("ResolveFully(%s) id = %s, want %s", name, resolved.ID, want)
+	}
+}
-- 
cgit v1.3.1-10-gc9f91