test: add network integration tests for standalone Python version resolution

Author: bigcat88

tests/comfy_cli/test_standalone.py

@@ -1,8 +1,15 @@
+import os
+import re
 from unittest.mock import MagicMock, patch
 
 import pytest
+import requests
 
-from comfy_cli.standalone import _resolve_python_version, download_standalone_python
+from comfy_cli.standalone import (
+    _latest_release_json_url,
+    _resolve_python_version,
+    download_standalone_python,
+)
 
 # Minimal SHA256SUMS content matching real format
 SAMPLE_SHA256SUMS = """\
@@ -112,3 +119,53 @@ def test_full_version_skips_resolution(self, mock_get, mock_download):
 
         # Should have fetched only latest-release.json, not SHA256SUMS
         assert mock_get.call_count == 1
+
+
+_require_network = pytest.mark.skipif(
+    os.getenv("TEST_NETWORK", "false").lower() != "true",
+    reason="Set TEST_NETWORK=true to run integration tests that hit the network",
+)
+
+
+@_require_network
+class TestResolveVersionIntegration:
+    """Integration tests that hit the real python-build-standalone release endpoints."""
+
+    def test_latest_release_json_is_reachable(self):
+        response = requests.get(_latest_release_json_url)
+        assert response.status_code == 200
+        data = response.json()
+        assert "tag" in data
+        assert "asset_url_prefix" in data
+        # tag should be a date string like "20260310"
+        assert re.fullmatch(r"\d{8}", data["tag"]), f"unexpected tag format: {data['tag']}"
+
+    def test_resolve_312_from_real_release(self):
+        response = requests.get(_latest_release_json_url)
+        data = response.json()
+        asset_url_prefix = data["asset_url_prefix"]
+
+        version = _resolve_python_version(asset_url_prefix, "3.12")
+
+        # Should be a valid 3.12.x version
+        assert re.fullmatch(r"3\.12\.\d+", version), f"unexpected version: {version}"
+
+    def test_sha256sums_contains_expected_platforms(self):
+        """Verify the platforms we use in _platform_targets actually exist in the release."""
+        response = requests.get(_latest_release_json_url)
+        data = response.json()
+        asset_url_prefix = data["asset_url_prefix"]
+
+        sha256sums_url = f"{asset_url_prefix}/SHA256SUMS"
+        sha_response = requests.get(sha256sums_url)
+        assert sha_response.status_code == 200
+
+        content = sha_response.text
+        expected_targets = [
+            "aarch64-apple-darwin",
+            "x86_64-apple-darwin",
+            "x86_64_v3-unknown-linux-gnu",
+            "x86_64-pc-windows-msvc",
+        ]
+        for target in expected_targets:
+            assert target in content, f"platform target '{target}' not found in SHA256SUMS"