Fix export test with yaml format

Signed-off-by: ziad <ziadhany2016@gmail.com>

vulnerabilities/management/commands/export.py

@@ -6,9 +6,9 @@
 # See https://github.com/nexB/vulnerablecode for support or download.
 # See https://aboutcode.org for more information about nexB OSS projects.
 #
-import yaml
 from pathlib import Path
 
+import yaml
 from django.core.management.base import BaseCommand
 from django.core.management.base import CommandError
 from packageurl import PackageURL

vulnerabilities/tests/test_export.py

@@ -1,10 +1,10 @@
-import json
 import os
 from io import StringIO
 from pathlib import Path
 from unittest import TestCase
 
 import pytest
+import yaml
 from django.core.management import call_command
 from django.core.management.base import CommandError
 
@@ -102,10 +102,10 @@ def test_write_vuln_data(tmp_path, ecosystem, package, vuln_id, vuln_data):
     package_dir = os.path.join(ecosystem_dir, package)
     assert os.path.isdir(package_dir)
 
-    vuln_file = os.path.join(package_dir, vuln_id + ".json")
+    vuln_file = os.path.join(package_dir, vuln_id + ".yaml")
     assert os.path.isfile(vuln_file)
 
-    assert Path(vuln_file).read_text() == json.dumps(vuln_data, ensure_ascii=False, indent=4)
+    assert Path(vuln_file).read_text() == yaml.dump(vuln_data)
 
 
 class TestExportCommand(TestCase):