test: keep webui CI hermetic offline

webui/lease_loader.py

@@ -228,10 +228,29 @@ def load_lease_snapshot(
         )
 
     host = _host_from_url(project.remote_host)
-    pr_fetch = fetch_prs or _fetch_prs
-    issue_fetch = fetch_issues or _fetch_issues
-    comment_fetch = fetch_comments or _fetch_comments
-    using_live = fetch_prs is None or fetch_issues is None
+    offline_test = (os.environ.get("WEBUI_TEST_OFFLINE") or "").strip() in {
+        "1",
+        "true",
+        "yes",
+    }
+
+    def _empty_pr_fetch(*_args, **_kwargs):
+        return [], None
+
+    def _empty_issue_fetch(*_args, **_kwargs):
+        return [], None
+
+    def _empty_comment_fetch(*_args, **_kwargs):
+        return []
+
+    pr_fetch = fetch_prs or (_empty_pr_fetch if offline_test else _fetch_prs)
+    issue_fetch = fetch_issues or (
+        _empty_issue_fetch if offline_test else _fetch_issues
+    )
+    comment_fetch = fetch_comments or (
+        _empty_comment_fetch if offline_test else _fetch_comments
+    )
+    using_live = not offline_test and (fetch_prs is None or fetch_issues is None)
     auth = get_auth_header(host) if using_live else "test-auth"
 
     if using_live and not auth:
@@ -328,4 +347,4 @@ def snapshot_to_dict(snapshot: LeaseSnapshot) -> dict[str, Any]:
         ],
         "collision_history": list(snapshot.collision_history),
         "fetch_error": snapshot.fetch_error,
-    }
+    }

webui/queue_loader.py

@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+import os
 import re
 from dataclasses import dataclass
 from datetime import datetime, timezone
@@ -268,9 +269,23 @@ def load_queue_snapshot(
         )
 
     host = _host_from_url(project.remote_host)
-    pr_fetch = fetch_prs or _fetch_prs
-    issue_fetch = fetch_issues or _fetch_issues
-    using_live_fetch = fetch_prs is None or fetch_issues is None
+    offline_test = (os.environ.get("WEBUI_TEST_OFFLINE") or "").strip() in {
+        "1",
+        "true",
+        "yes",
+    }
+
+    def _empty_fetch(*_args, **_kwargs):
+        return [], _pagination_from_pages(
+            per_page=50,
+            pages_fetched=1,
+            returned_count=0,
+            is_final_page=True,
+        )
+
+    pr_fetch = fetch_prs or (_empty_fetch if offline_test else _fetch_prs)
+    issue_fetch = fetch_issues or (_empty_fetch if offline_test else _fetch_issues)
+    using_live_fetch = not offline_test and (fetch_prs is None or fetch_issues is None)
     auth = get_auth_header(host) if using_live_fetch else "test-auth"
     if using_live_fetch and not auth:
         return QueueSnapshot(
@@ -382,4 +397,4 @@ def snapshot_to_dict(snapshot: QueueSnapshot) -> dict[str, Any]:
             "prs": _page(snapshot.pr_pagination),
             "issues": _page(snapshot.issue_pagination),
         },
-    }
+    }

webui/runtime_health.py

@@ -217,6 +217,11 @@ def load_runtime_snapshot(
     repo = _repo_root()
     host = _host_from_url(project.remote_host)
     remote = _remote_name_for_host(host)
+    offline_test = (os.environ.get("WEBUI_TEST_OFFLINE") or "").strip() in {
+        "1",
+        "true",
+        "yes",
+    }
     profile = get_profile()
     allowed = profile.get("allowed_operations") or []
     forbidden = profile.get("forbidden_operations") or []
@@ -247,10 +252,20 @@ def load_runtime_snapshot(
             fetch_error=str(exc),
         )
 
-    identity_fn = resolve_username or _resolve_username
+    identity_fn = resolve_username
+    if identity_fn is None:
+        if offline_test:
+            identity_fn = lambda _host: (None, "offline web UI test mode")
+        else:
+            identity_fn = _resolve_username
     username, identity_error = identity_fn(host)
 
-    git_fn = git_sync or _git_sync_status
+    git_fn = git_sync
+    if git_fn is None:
+        if offline_test:
+            git_fn = lambda _repo, _remote, _branch: (None, None, None)
+        else:
+            git_fn = _git_sync_status
     remote_ref = "prgs" if remote == "prgs" else "origin"
     local_sha, remote_sha, behind = git_fn(repo, remote_ref, project.default_branch)
 
@@ -317,4 +332,4 @@ def snapshot_to_dict(snapshot: RuntimeSnapshot) -> dict[str, Any]:
         "schema_hashes": [_hash_row(item) for item in snapshot.schema_hashes],
         "restart_guidance": snapshot.restart_guidance,
         "fetch_error": snapshot.fetch_error,
-    }
+    }