1 files changed, 29 insertions, 0 deletions
diff --git a/lib/containers/fuzzutil_test.go b/lib/containers/fuzzutil_test.go
new file mode 100644
index 0000000..79459b6
--- /dev/null
+++ b/lib/containers/fuzzutil_test.go
@@ -0,0 +1,29 @@
+// Copyright (C) 2023  Luke Shumaker <lukeshu@lukeshu.com>
+//
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package containers
+
+import (
+	"bytes"
+	"crypto/sha256"
+	"encoding/hex"
+	"fmt"
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func SaveFuzz(f *testing.F, dat []byte) {
+	var buf bytes.Buffer
+	fmt.Fprintf(&buf, "go test fuzz v1\n[]byte(%q)\n", dat)
+	sum := sha256.Sum256(buf.Bytes())
+	filename := filepath.Join(
+		"testdata",
+		"fuzz",
+		f.Name(),
+		hex.EncodeToString(sum[:]))
+	if err := os.WriteFile(filename, buf.Bytes(), 0o644); err != nil {
+		f.Error(err)
+	}
+}