v3 candidate

internal/leviathan/pdf/pdf_test.go

@@ -0,0 +1,37 @@
+package pdf
+
+import (
+	"os"
+	"strings"
+	"testing"
+
+	"github.com/andydixon/nexus/internal/leviathan/document"
+)
+
+func TestParseRejectsOversizedPDFBeforeWholeRange(t *testing.T) {
+	file, err := os.CreateTemp(t.TempDir(), "huge-*.pdf")
+	if err != nil {
+		t.Fatalf("CreateTemp() failed: %v", err)
+	}
+	if _, err := file.WriteString("%PDF-1.7\n"); err != nil {
+		t.Fatalf("WriteString() failed: %v", err)
+	}
+	if err := file.Truncate(maxPDFParseBytes + 1); err != nil {
+		t.Fatalf("Truncate() failed: %v", err)
+	}
+	if err := file.Close(); err != nil {
+		t.Fatalf("Close() failed: %v", err)
+	}
+
+	doc, err := document.Open(file.Name())
+	if err != nil {
+		t.Fatalf("document.Open() failed: %v", err)
+	}
+	_, err = Parse(doc)
+	if err == nil {
+		t.Fatal("expected oversized PDF to be rejected")
+	}
+	if !strings.Contains(err.Error(), "pdf parse skipped") {
+		t.Fatalf("unexpected error: %v", err)
+	}
+}