diff --git a/test/unit/files/test_drs.py b/test/unit/files/test_drs.py
index 10c5ba89eeb8..704631f10472 100644
--- a/test/unit/files/test_drs.py
+++ b/test/unit/files/test_drs.py
@@ -45,15 +45,17 @@ def drs_repo_handler(request):
         content_type="application/json",
     )
 
+    test_url = "drs://drs.example.org/314159"
+
     def check_specific_header(request, **kwargs):
         assert request.full_url == "https://my.respository.org/myfile.txt"
         assert request.headers["Authorization"] == "Basic Z2E0Z2g6ZHJz"
         response: Any = io.StringIO("hello drs world")
         response.headers = {}
+        response.geturl = lambda: test_url
         return response
 
     with mock.patch.object(urllib.request, "urlopen", new=check_specific_header):
-        test_url = "drs://drs.example.org/314159"
         user_context = user_context_fixture()
         file_sources = configured_file_sources(FILE_SOURCES_CONF)
         file_source_pair = file_sources.get_file_source_path(test_url)
diff --git a/test/unit/files/test_http.py b/test/unit/files/test_http.py
index 5eebeaa2e9e8..9f3b090a34bc 100644
--- a/test/unit/files/test_http.py
+++ b/test/unit/files/test_http.py
@@ -20,14 +20,16 @@
 
 
 def test_file_source_http_specific():
+    test_url = "https://www.usegalaxy.org/myfile.txt"
+
     def check_specific_header(request, **kwargs):
         assert request.headers["Authorization"] == "Bearer IBearTokens"
         response: Any = io.StringIO("hello specific world")
         response.headers = {}
+        response.geturl = lambda: test_url
         return response
 
     with mock.patch.object(urllib.request, "urlopen", new=check_specific_header):
-        test_url = "https://www.usegalaxy.org/myfile.txt"
         user_context = user_context_fixture()
         file_sources = configured_file_sources(FILE_SOURCES_CONF)
         file_source_pair = file_sources.get_file_source_path(test_url)
@@ -39,14 +41,16 @@ def check_specific_header(request, **kwargs):
 
 
 def test_file_source_another_http_specific():
+    test_url = "http://www.galaxyproject.org/anotherfile.txt"
+
     def check_another_header(request, **kwargs):
         assert request.headers["Another_header"] == "found"
         response: Any = io.StringIO("hello another world")
+        response.geturl = lambda: test_url
         response.headers = {}
         return response
 
     with mock.patch.object(urllib.request, "urlopen", new=check_another_header):
-        test_url = "http://www.galaxyproject.org/anotherfile.txt"
         user_context = user_context_fixture()
         file_sources = configured_file_sources(FILE_SOURCES_CONF)
         file_source_pair = file_sources.get_file_source_path(test_url)
@@ -58,14 +62,16 @@ def check_another_header(request, **kwargs):
 
 
 def test_file_source_http_generic():
+    test_url = "https://www.elsewhere.org/myfile.txt"
+
     def check_generic_headers(request, **kwargs):
         assert not request.headers
         response: Any = io.StringIO("hello generic world")
         response.headers = {}
+        response.geturl = lambda: test_url
         return response
 
     with mock.patch.object(urllib.request, "urlopen", new=check_generic_headers):
-        test_url = "https://www.elsewhere.org/myfile.txt"
         user_context = user_context_fixture()
         file_sources = configured_file_sources(FILE_SOURCES_CONF)
         file_source_pair = file_sources.get_file_source_path(test_url)
@@ -77,14 +83,16 @@ def check_generic_headers(request, **kwargs):
 
 
 def test_file_source_ftp_url():
+    test_url = "ftp://ftp.gnu.org/README"
+
     def check_generic_headers(request, **kwargs):
         assert not request.headers
         response: Any = io.StringIO("This is ftp.gnu.org, the FTP server of the the GNU project.")
         response.headers = {}
+        response.geturl = lambda: test_url
         return response
 
     with mock.patch.object(urllib.request, "urlopen", new=check_generic_headers):
-        test_url = "ftp://ftp.gnu.org/README"
         user_context = user_context_fixture()
         file_sources = configured_file_sources(FILE_SOURCES_CONF)
         file_source_pair = file_sources.get_file_source_path(test_url)
@@ -108,14 +116,16 @@ def test_file_source_http_without_stock_generic():
 
 
 def test_file_source_http_without_stock_specific():
+    test_url = "https://www.usegalaxy.org/myfile2.txt"
+
     def check_specific_header(request, **kwargs):
         assert request.headers["Authorization"] == "Bearer IBearTokens"
         response: Any = io.StringIO("hello specific world 2")
         response.headers = {}
+        response.geturl = lambda: test_url
         return response
 
     with mock.patch.object(urllib.request, "urlopen", new=check_specific_header):
-        test_url = "https://www.usegalaxy.org/myfile2.txt"
         user_context = user_context_fixture()
         file_sources = configured_file_sources(FILE_SOURCES_CONF_WITHOUT_STOCK)
         file_source_pair = file_sources.get_file_source_path(test_url)