1 files changed, 37 insertions, 0 deletions
diff --git a/protocol/pktline/decoder_resync_after_over_wire_max_test.go b/protocol/pktline/decoder_resync_after_over_wire_max_test.go
new file mode 100644
index 00000000..3ba98d62
--- /dev/null
+++ b/protocol/pktline/decoder_resync_after_over_wire_max_test.go
@@ -0,0 +1,37 @@
+package pktline_test
+
+import (
+	"bytes"
+	"errors"
+	"testing"
+
+	"codeberg.org/lindenii/furgit/protocol/pktline"
+)
+
+func TestDecoderResyncAfterOverWireMax(t *testing.T) {
+	t.Parallel()
+
+	var b bytes.Buffer
+
+	_, _ = b.WriteString("ffff")
+	_, _ = b.Write(bytes.Repeat([]byte{'a'}, 65531))
+	_, _ = b.WriteString("0005z")
+
+	dec := pktline.NewDecoder(bytes.NewReader(b.Bytes()), pktline.ReadOptions{})
+	dec.SetMaxData(70000)
+
+	_, err := dec.ReadFrame()
+
+	if _, ok := errors.AsType[*pktline.ProtocolError](err); !ok {
+		t.Fatalf("got err %v, want ProtocolError", err)
+	}
+
+	f, err := dec.ReadFrame()
+	if err != nil {
+		t.Fatalf("ReadFrame #2: %v", err)
+	}
+
+	if f.Type != pktline.PacketData || string(f.Payload) != "z" {
+		t.Fatalf("got frame %#v, want data z", f)
+	}
+}