From bfa0a3f5f18b752a6ebd3d5b37411c6871f7bb17 Mon Sep 17 00:00:00 2001
From: Runxi Yu
Date: Wed, 25 Mar 2026 14:30:31 +0000
Subject: *: objectstore -> object/store

---
 object/store/loose/write_test.go | 137 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 137 insertions(+)
 create mode 100644 object/store/loose/write_test.go

(limited to 'object/store/loose/write_test.go')

diff --git a/object/store/loose/write_test.go b/object/store/loose/write_test.go
new file mode 100644
index 00000000..30d8dbdb
--- /dev/null
+++ b/object/store/loose/write_test.go
@@ -0,0 +1,137 @@
+package loose_test
+
+import (
+	"bytes"
+	"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"
+)
+
+func TestLooseStoreWriteReaderContentAgainstGit(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})
+		store := openLooseStore(t, testRepo, algo)
+
+		content := []byte("written-by-content-reader\n")
+		expectedHex := testRepo.RunInput(t, content, "hash-object", "-t", "blob", "--stdin")
+
+		expectedID, err := objectid.ParseHex(algo, expectedHex)
+		if err != nil {
+			t.Fatalf("ParseHex(expected): %v", err)
+		}
+
+		writtenID, err := store.WriteReaderContent(objecttype.TypeBlob, int64(len(content)), bytes.NewReader(content))
+		if err != nil {
+			t.Fatalf("WriteReaderContent: %v", err)
+		}
+
+		if writtenID != expectedID {
+			t.Fatalf("WriteReaderContent id = %s, want %s", writtenID, expectedID)
+		}
+
+		gotBody := testRepo.CatFile(t, "blob", writtenID)
+		if !bytes.Equal(gotBody, content) {
+			t.Fatalf("git cat-file body mismatch")
+		}
+
+		// Writing the same object again should succeed and return the same ID.
+		writtenID2, err := store.WriteReaderContent(objecttype.TypeBlob, int64(len(content)), bytes.NewReader(content))
+		if err != nil {
+			t.Fatalf("WriteReaderContent second: %v", err)
+		}
+
+		if writtenID2 != expectedID {
+			t.Fatalf("WriteReaderContent second id = %s, want %s", writtenID2, expectedID)
+		}
+	})
+}
+
+func TestLooseStoreWriteReaderFullAgainstGit(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})
+		store := openLooseStore(t, testRepo, algo)
+
+		body := []byte("full-reader-body\n")
+
+		header, ok := objectheader.Encode(objecttype.TypeBlob, 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)
+
+		wantID := algo.Sum(raw)
+
+		gotID, err := store.WriteReaderFull(bytes.NewReader(raw))
+		if err != nil {
+			t.Fatalf("WriteReaderFull: %v", err)
+		}
+
+		if gotID != wantID {
+			t.Fatalf("WriteReaderFull id = %s, want %s", gotID, wantID)
+		}
+
+		gotBody := testRepo.CatFile(t, "blob", gotID)
+		if !bytes.Equal(gotBody, body) {
+			t.Fatalf("git cat-file body mismatch")
+		}
+	})
+}
+
+func TestLooseStoreReaderValidationErrors(t *testing.T) {
+	t.Parallel()
+	testgit.ForEachAlgorithm(t, func(t *testing.T, algo objectid.Algorithm) { //nolint:thelper
+		t.Run("content overflow", func(t *testing.T) {
+			t.Parallel()
+			testRepo := testgit.NewRepo(t, testgit.RepoOptions{ObjectFormat: algo, Bare: true})
+			store := openLooseStore(t, testRepo, algo)
+
+			_, err := store.WriteReaderContent(objecttype.TypeBlob, 1, bytes.NewReader([]byte("hello")))
+			if err == nil {
+				t.Fatalf("expected error after overflow")
+			}
+		})
+
+		t.Run("content short", func(t *testing.T) {
+			t.Parallel()
+			testRepo := testgit.NewRepo(t, testgit.RepoOptions{ObjectFormat: algo, Bare: true})
+			store := openLooseStore(t, testRepo, algo)
+
+			_, err := store.WriteReaderContent(objecttype.TypeBlob, 5, bytes.NewReader([]byte("x")))
+			if err == nil {
+				t.Fatalf("expected error for short content")
+			}
+		})
+
+		t.Run("full malformed header", func(t *testing.T) {
+			t.Parallel()
+			testRepo := testgit.NewRepo(t, testgit.RepoOptions{ObjectFormat: algo, Bare: true})
+			store := openLooseStore(t, testRepo, algo)
+
+			_, err := store.WriteReaderFull(bytes.NewReader([]byte("not-a-header")))
+			if err == nil {
+				t.Fatalf("expected error for malformed header")
+			}
+		})
+
+		t.Run("full size mismatch", func(t *testing.T) {
+			t.Parallel()
+			testRepo := testgit.NewRepo(t, testgit.RepoOptions{ObjectFormat: algo, Bare: true})
+			store := openLooseStore(t, testRepo, algo)
+
+			raw := []byte("blob 1\x00hello")
+
+			_, err := store.WriteReaderFull(bytes.NewReader(raw))
+			if err == nil {
+				t.Fatalf("expected error after mismatch")
+			}
+		})
+	})
+}
-- 
cgit v1.3.1-10-gc9f91