From ce9c9dd079d9ca9d0deebe0b33bd948cc702ee83 Mon Sep 17 00:00:00 2001
From: Martin Thoma <info@martin-thoma.de>
Date: Sat, 18 Jun 2022 11:14:39 +0200
Subject: [PATCH] More tests

---
 tests/test_merger.py | 12 ++++++++++++
 tests/test_writer.py | 18 +++++++++++++++++-
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/tests/test_merger.py b/tests/test_merger.py
index b78028223..beba5cdad 100644
--- a/tests/test_merger.py
+++ b/tests/test_merger.py
@@ -185,6 +185,18 @@ def test_zoom():
     os.remove("tmp-merger-do-not-commit.pdf")
 
 
+def test_zoom_xyz_no_left():
+    url = "https://corpora.tika.apache.org/base/docs/govdocs1/933/933322.pdf"
+    name = "tika-933322.pdf"
+    reader = PdfReader(BytesIO(get_pdf_from_url(url, name=name)))
+    merger = PdfMerger()
+    merger.append(reader)
+    merger.write("tmp-merger-do-not-commit.pdf")
+
+    # cleanup
+    os.remove("tmp-merger-do-not-commit.pdf")
+
+
 def test_bookmark():
     url = "https://corpora.tika.apache.org/base/docs/govdocs1/997/997511.pdf"
     name = "tika-997511.pdf"
diff --git a/tests/test_writer.py b/tests/test_writer.py
index 9f9bc1fc9..5c034e269 100644
--- a/tests/test_writer.py
+++ b/tests/test_writer.py
@@ -3,10 +3,12 @@
 
 import pytest
 
-from PyPDF2 import PdfReader, PdfWriter
+from PyPDF2 import PdfMerger, PdfReader, PdfWriter
 from PyPDF2.errors import PageSizeNotDefinedError
 from PyPDF2.generic import RectangleObject
 
+from . import get_pdf_from_url
+
 TESTS_ROOT = os.path.abspath(os.path.dirname(__file__))
 PROJECT_ROOT = os.path.dirname(TESTS_ROOT)
 RESOURCE_ROOT = os.path.join(PROJECT_ROOT, "resources")
@@ -455,3 +457,17 @@ def test_issue301():
         writer.append_pages_from_reader(reader)
         o = BytesIO()
         writer.write(o)
+
+
+def test_sweep_indirect_references_nullobject_exception():
+    # TODO: Check this more closely... this looks weird
+    url = "https://corpora.tika.apache.org/base/docs/govdocs1/924/924666.pdf"
+    name = "tika-924666.pdf"
+    reader = PdfReader(BytesIO(get_pdf_from_url(url, name=name)))
+    merger = PdfMerger()
+    merger.append(reader)
+    with pytest.warns(UserWarning, match="returning NullObject instead"):
+        merger.write("tmp-merger-do-not-commit.pdf")
+
+    # cleanup
+    os.remove("tmp-merger-do-not-commit.pdf")