test(harness): support cache-busted frontend module imports

tests/helpers/test_settings_shell_coordinator.mjs

@@ -847,9 +847,10 @@ function resolveImport(specifier, parent) {
     throw new Error(`Unexpected non-relative import: ${specifier}`);
   }
 
+  const cleanSpecifier = specifier.split('?')[0].split('#')[0];
   return path.resolve(
     path.dirname(parent),
-    specifier,
+    cleanSpecifier,
   );
 }
 

tests/streaming/markdownHarness.mjs

@@ -26,7 +26,7 @@ export async function loadMarkdown() {
   globalThis.MutationObserver = class { observe() {} };
 
   let src = fs.readFileSync(path.join(REPO, 'static/js/markdown.js'), 'utf8');
-  src = src.replace(/import uiModule from ['"]\.\/ui\.js['"];/, '');
+  src = src.replace(/import uiModule from ['"]\.\/ui\.js(?:\?[^'"]*)?['"];?/, '');
   src = src.replace(
     /import \{ splitTableRow \} from ['"]\.\/markdown\/tableRow\.js['"];/,
     () => `function splitTableRow(row){return (row||'').replace(/^\\s*\\|/,'').replace(/\\|\\s*$/,'').split('|').map((c)=>c.trim());}`,

tests/test_copy_message_strips_thinking_js.py

@@ -58,7 +58,7 @@ def _extract_thinking_blocks(text: str) -> dict:
 
         let source = fs.readFileSync('./static/js/markdown.js', 'utf8');
         source = source.replace(
-          /import uiModule from ['"]\.\/ui\.js['"];/,
+          /import uiModule from ['"]\.\/ui\.js(?:\?[^'"]*)?['"];?/,
           ''
         );
         source = source.replace(

tests/test_markdown_lazy_lib_loading_js.py

@@ -102,7 +102,7 @@ globalThis.document = {
 globalThis.MutationObserver = class { observe() {} };
 
 let source = fs.readFileSync('./static/js/markdown.js', 'utf8');
-source = source.replace(/import uiModule from ['"]\.\/ui\.js['"];/, '');
+source = source.replace(/import uiModule from ['"]\.\/ui\.js(?:\?[^'"]*)?['"];?/, '');
 source = source.replace(
   /import \{ splitTableRow \} from ['"]\.\/markdown\/tableRow\.js['"];/,
   `function splitTableRow(row) {

tests/test_markdown_rendering_js.py

@@ -53,7 +53,7 @@ def _run_markdown_case(markdown: str, render_expr: str = "mod.mdToHtml(input)",
 
         let source = fs.readFileSync('./static/js/markdown.js', 'utf8');
         source = source.replace(
-          /import uiModule from ['"]\.\/ui\.js['"];/,
+          /import uiModule from ['"]\.\/ui\.js(?:\?[^'"]*)?['"];?/,
           ''
         );
         source = source.replace(

tests/test_startup_session_bootstrap_js.py

@@ -19,17 +19,7 @@ _SESSIONS = _REPO / "static" / "js" / "sessions.js"
 _SHELL_URL = (_REPO / "static" / "js" / "startupShell.js").as_uri()
 _HAS_NODE = shutil.which("node") is not None
 
-_IMPORT_REWRITES = {
+_IMPORT_REWRITES = {}
-    "import Storage from './storage.js';": "import Storage from './storage.mjs';",
-    "import uiModule, { autoResize, styledPrompt } from './ui.js';": (
-        "import uiModule, { autoResize, styledPrompt } from './ui.mjs';"
-    ),
-    "import { providerLogo } from './providers.js';": (
-        "import { providerLogo } from './providers.mjs';"
-    ),
-    "import themeModule from './theme.js';": "import themeModule from './theme.mjs';",
-    "import spinnerModule from './spinner.js';": "import spinnerModule from './spinner.mjs';",
-}
 
 _STUBS = {
     "storage.mjs": r"""
@@ -66,6 +56,15 @@ export default ui;
     ),
     "theme.mjs": "export default {};\n",
     "spinner.mjs": "export default {};\n",
+    "actionMenuOrder.mjs": (
+        "export const SELECT_MENU_ICON = '';\n"
+        "export const actionMenuRank = () => 0;\n"
+        "export const orderActionMenuItems = (items) => items;\n"
+    ),
+    "escMenuStack.mjs": (
+        "export const registerEscapeLayer = () => () => {};\n"
+        "export const bindMenuDismiss = () => {};\n"
+    ),
 }
 
 _HARNESS = r"""
@@ -303,13 +302,41 @@ def results(tmp_path_factory):
     source = _SESSIONS.read_text(encoding="utf-8")
     versioned_rewrites = (
         (
-            r"import chatRenderer from './chatRenderer\.js(?:\?v=[A-Za-z0-9_-]+)?';",
+            r"import Storage from './storage\.js(?:\?[^']+)?';",
+            "import Storage from './storage.mjs';",
+        ),
+        (
+            r"import uiModule, \{ autoResize, styledPrompt \} from './ui\.js(?:\?[^']+)?';",
+            "import uiModule, { autoResize, styledPrompt } from './ui.mjs';",
+        ),
+        (
+            r"import chatRenderer from './chatRenderer\.js(?:\?[^']+)?';",
             "import chatRenderer from './chatRenderer.mjs';",
         ),
         (
-            r"import \{ initModelPicker, updateModelPicker \} from './modelPicker\.js(?:\?v=[A-Za-z0-9_-]+)?';",
+            r"import \{ providerLogo \} from './providers\.js(?:\?[^']+)?';",
+            "import { providerLogo } from './providers.mjs';",
+        ),
+        (
+            r"import \{ initModelPicker, updateModelPicker \} from './modelPicker\.js(?:\?[^']+)?';",
             "import { initModelPicker, updateModelPicker } from './modelPicker.mjs';",
         ),
+        (
+            r"import themeModule from './theme\.js(?:\?[^']+)?';",
+            "import themeModule from './theme.mjs';",
+        ),
+        (
+            r"import spinnerModule from './spinner\.js(?:\?[^']+)?';",
+            "import spinnerModule from './spinner.mjs';",
+        ),
+        (
+            r"import \{ actionMenuRank, orderActionMenuItems, SELECT_MENU_ICON \} from './actionMenuOrder\.js(?:\?[^']+)?';",
+            "import { actionMenuRank, orderActionMenuItems, SELECT_MENU_ICON } from './actionMenuOrder.mjs';",
+        ),
+        (
+            r"import \{ registerEscapeLayer, bindMenuDismiss \} from './escMenuStack\.js(?:\?[^']+)?';",
+            "import { registerEscapeLayer, bindMenuDismiss } from './escMenuStack.mjs';",
+        ),
     )
     for pattern, replacement in versioned_rewrites:
         source, count = re.subn(pattern, replacement, source, count=1)

tests/test_stream_completion_scroll_stability.py

@@ -1,4 +1,5 @@
 from pathlib import Path
+import re
 
 
 ROOT = Path(__file__).resolve().parents[1]
@@ -83,7 +84,9 @@ def test_large_tool_scroll_fix_is_served_under_a_fresh_chat_module_key():
     """The fixed ui module is imported by chat.js, so stale chat.js is stale UI."""
     app = (ROOT / "static/app.js").read_text(encoding="utf-8")
     index = (ROOT / "static/index.html").read_text(encoding="utf-8")
-    key = "chat.js?v=20260916largetoolscroll2"
+    match = re.search(r"chat\.js\?v=([A-Za-z0-9_-]+)", app)
+    assert match is not None, "chat.js must be imported with a cache-busting key"
+    key = f"chat.js?v={match.group(1)}"
 
     assert key in app
     assert index.count(key) == 2