fix tests

Signed-off-by: Jan Kowalleck <jan.kowalleck@gmail.com>

tests/test_deserialize_xml.py

@@ -16,6 +16,7 @@
 # Copyright (c) OWASP Foundation. All Rights Reserved.
 
 from datetime import datetime
+from io import StringIO
 from os.path import join
 from typing import cast
 from unittest.mock import Mock, patch
@@ -685,7 +686,7 @@ def _validate_xml_bom(self, bom: Bom, schema_version: SchemaVersion, fixture: st
         if schema_version != LATEST_SUPPORTED_SCHEMA_VERSION:
             # Rewind the BOM to only have data supported by the SchemaVersion in question
             outputter = get_instance(bom=bom, output_format=OutputFormat.XML, schema_version=schema_version)
-            bom = cast(Bom, Bom.from_xml(outputter.output_as_string()))
+            bom = cast(Bom, Bom.from_xml(StringIO(outputter.output_as_string())))
 
         with open(join(RELEVANT_TESTDATA_DIRECTORY, schema_version.to_version(), fixture)) as input_xml:
             deserialized_bom = cast(Bom, Bom.from_xml(input_xml))

tests/test_real_world_examples.py

@@ -14,6 +14,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 # Copyright (c) OWASP Foundation. All Rights Reserved.
+
 import unittest
 from datetime import datetime
 from os.path import join