From 1a3ba0d9c4de856e06f1ce01ed7631843299c2f2 Mon Sep 17 00:00:00 2001
From: JKatzwinkel <jkatzwinkel@users.noreply.github.com>
Date: Thu, 7 Nov 2024 12:25:00 +0100
Subject: [PATCH] Adds test illustrating failed serialization to stdout

---
 tests/test_document.py | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/tests/test_document.py b/tests/test_document.py
index 81b0bfeb..9a2e37ae 100644
--- a/tests/test_document.py
+++ b/tests/test_document.py
@@ -1,11 +1,15 @@
 import gc
+import sys
+from pathlib import Path
 from typing import Final
 
 import pytest
+
 from delb import (
     CommentNode,
     Document,
     DocumentMixinBase,
+    FormatOptions,
     ProcessingInstructionNode,
     TagNode,
     TextNode,
@@ -234,3 +238,19 @@ def test_xpath(files_path):
         assert page_break.attributes["n"] == "I"
 
     assert j == 0
+
+
+def test_write_to_buffer(result_file: Path) -> None:
+    doc = Document(
+        '<root><node attr="val"/></root>'
+    )
+    with result_file.open('bw+') as f:
+        doc.write(f, format_options=FormatOptions(indentation='  '))
+
+
+def test_write_to_stdout(capsys) -> None:
+    doc = Document(
+        '<root><node attr="val"/></root>'
+    )
+    doc.write(sys.stdout.buffer, format_options=FormatOptions(indentation='  '))
+    assert '<root>' in capsys.readouterr().out