Test for Exiv2#1821

test/data/issue_1821_poc.xmp

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+<xxm xmlns:poto��������������������������������������������������������������������������������������������������������������������������������ID="3"/>

tests/bugfixes/github/test_issue_1821.py

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+# -*- coding: utf-8 -*-
+
+from system_tests import CaseMeta, path
+import unittest
+
+# Issue #1821 is a memory leak caused by buggy third-party
+# code in the xmpsdk sub-directory, so it isn't easy for us to fix.
+# This test will fail when run with an ASAN build.
+@unittest.skip("Skipping test until #1821 is fixed")
+
+class MemoryLeakAddBinding(metaclass=CaseMeta):
+    """
+    Regression test for the bug described in:
+    https://github.com/Exiv2/exiv2/issues/1821
+    """
+    url = "https://github.com/Exiv2/exiv2/issues/1821"
+
+    filename = path("$data_path/issue_1821_poc.xmp")
+    commands = ["$exiv2 -q $filename"]
+    stdout = ["""File name       : $filename
+File size       : 163 Bytes
+MIME type       : application/rdf+xml
+Image size      : 0 x 0
+"""]
+    stderr = ["""$filename: No Exif data found in the file
+"""]
+    retval = [253]