conda · jezdez · Nov 8, 2022 · Oct 27, 2022 · Oct 27, 2022 · Oct 27, 2022
@@ -4,7 +4,11 @@
 from os.path import dirname, join
 
 
-def support_file(filename, remote=False):
+# remote=True is only used in two places, in tests.conda_env.test_create
+
+
+def support_file(filename, port=None, remote=False):
     if remote:
-        return f"https://raw.githubusercontent.com/conda/conda/main/tests/conda_env/support/{filename}"
+        assert port is not None
+        return f"http://127.0.0.1:{port}/{filename}"
     return join(dirname(__file__), "support", filename)
@@ -1,6 +1,6 @@
 name: test
 dependencies:
-  - flask==0.12.2
+  - flask==2.0.2
 variables:
   FIXED: fixed
   CHANGES: original_value

@@ -1,6 +1,6 @@
 name: test
 dependencies:
-  - flask==1.0.2
+  - flask==2.0.3
 variables:
   FIXED: fixed
   CHANGES: updated_value

@@ -1,10 +1,12 @@
 # Copyright (C) 2012 Anaconda, Inc
 # SPDX-License-Identifier: BSD-3-Clause
-from pathlib import Path
 import subprocess
+from pathlib import Path
 
 import pytest
 
+from . import http_test_server
+
 pytest_plugins = (
     # Add testing fixtures and internal pytest plugins here
     "conda.testing.gateways.fixtures",
@@ -38,6 +40,24 @@ def clear_cache():
     SubdirData._cache_.clear()
 
 
+@pytest.fixture(scope="session")
+def support_file_server():
+    """
+    Open a local web server to test remote support files.
+    """
+    base = Path(__file__).parents[0] / "conda_env" / "support"
+    http = http_test_server.run_test_server(str(base))
+    yield http
+    # shutdown is checked at a polling interval, or the daemon thread will shut
+    # down when the test suite exits.
+    http.shutdown()
+
+
+@pytest.fixture
+def support_file_server_port(support_file_server):
+    return support_file_server.socket.getsockname()[1]
+
+
 @pytest.fixture
 def clear_cuda_version():
     from conda.plugins.virtual_packages import cuda

@@ -0,0 +1,51 @@
+# Copyright (C) 2012 Anaconda, Inc
+# SPDX-License-Identifier: BSD-3-Clause
+"""
+Local test server based on http.server
+"""
+
+import contextlib
+import http.server
+import queue
+import socket
+import threading
+
+
+def run_test_server(directory: str) -> http.server.ThreadingHTTPServer:
+    """
+    Run a test server on a random port. Inspect returned server to get port,
+    shutdown etc.
+    """
+
+    class DualStackServer(http.server.ThreadingHTTPServer):
+        def server_bind(self):
+            # suppress exception when protocol is IPv4
+            with contextlib.suppress(Exception):
+                self.socket.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 0)
+            return super().server_bind()
+
+        def finish_request(self, request, client_address):
+            self.RequestHandlerClass(request, client_address, self, directory=directory)
+
+    def start_server(queue):
+
+        with DualStackServer(("127.0.0.1", 0), http.server.SimpleHTTPRequestHandler) as httpd:
+            host, port = httpd.socket.getsockname()[:2]
+            queue.put(httpd)
+            url_host = f"[{host}]" if ":" in host else host
+            print(f"Serving HTTP on {host} port {port} " f"(http://{url_host}:{port}/) ...")
+            try:
+                httpd.serve_forever()
+            except KeyboardInterrupt:
+                print("\nKeyboard interrupt received, exiting.")
+
+    started = queue.Queue()
+
+    threading.Thread(target=start_server, args=(started,), daemon=True).start()
+
+    return started.get(timeout=1)
+
+
+if __name__ == "__main__":
+    server = run_test_server(directory=".")
+    print(server)
@@ -1115,10 +1115,10 @@ def test_clone_offline_multichannel_with_untracked(self):
             "CONDA_DLL_SEARCH_MODIFICATION_ENABLE": "1",
         }, stack_callback=conda_tests_ctxt_mgmt_def_pol):
             # The flask install will use this version of Python. That is then used to compile flask's pycs.
-            flask_python = '3.6'
-            with make_temp_env("python=3.7", use_restricted_unicode=True) as prefix:
+            flask_python = '3.8' # oldest available for osx-arm64
+            with make_temp_env("python=3.9", use_restricted_unicode=True) as prefix:
 
-                run_command(Commands.CONFIG, prefix, "--add", "channels", "https://repo.anaconda.com/pkgs/free")
+                run_command(Commands.CONFIG, prefix, "--add", "channels", "https://repo.anaconda.com/pkgs/main")
                 run_command(Commands.CONFIG, prefix, "--remove", "channels", "defaults")
 
                 run_command(Commands.INSTALL, prefix, "-c", "conda-test", "flask", "python=" + flask_python)