TST: Invalid XML in xmp information (#1051)

See #1030

tests/test_xmp.py

@@ -7,6 +7,7 @@
 import PyPDF2.generic
 import PyPDF2.xmp
 from PyPDF2 import PdfReader
+from PyPDF2.errors import PdfReadError
 
 from . import get_pdf_from_url
 
@@ -168,6 +169,15 @@ def test_dc_subject():
     ]
 
 
+def test_issue585():
+    url = "https://github.com/mstamy2/PyPDF2/files/5536984/test.pdf"
+    name = "mstamy2-5536984.pdf"
+    reader = PdfReader(BytesIO(get_pdf_from_url(url, name=name)))
+    with pytest.raises(PdfReadError) as exc:
+        reader.xmp_metadata
+    assert exc.value.args[0].startswith("XML in XmpInformation was invalid")
+
+
 # def test_getter_bag():
 #     f = PyPDF2.xmp._getter_bag("namespace", "name")
 #     class Tst:  # to replace pdf