Add new sublist3r module and remove vhost from sources

tests/discovery/test_sublist3r.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+# coding=utf-8
+import requests
+from theHarvester.lib.core import *
+from theHarvester.discovery import sublist3r
+import pytest
+
+pytestmark = pytest.mark.asyncio
+
+
+class TestSublist3r(object):
+    @staticmethod
+    def domain() -> str:
+        return 'target.com'
+
+    async def test_api(self):
+        base_url = f'https://api.sublist3r.com/search.php?domain={TestSublist3r.domain()}'
+        headers = {'User-Agent': Core.get_user_agent()}
+        request = requests.get(base_url, headers=headers)
+        assert request.status_code == 200
+
+    async def test_search(self):
+        search = sublist3r.SearchSublist3r(TestSublist3r.domain())
+        await search.process()
+        assert isinstance(await search.get_hostnames(), list)
+
+
+if __name__ == '__main__':
+    pytest.main()