test(tui): pin wall-clock-rotated spinner verb in Working-regression guards

Three tests assert 'Working' is absent from the rendered activity spinner
to guard against the old static 'Working…' placeholder. The verb rotates
on time.monotonic() over a list that legitimately includes 'Working', so
the suite fails deterministically for the verb's 10-minute rotation
window every ~21 hours. Pin spinner_message in those tests so the guard
only catches the real regression.

Author: elkaix

tests/ui_and_conv/test_empty_think_part_indicator.py

@@ -213,10 +213,16 @@ def test_moon_fallback_during_active_turn():
     assert agent_blocks[0].plain.strip() == ""
 
 
-def test_working_indicator_stays_visible_when_content_block_visible():
+def test_working_indicator_stays_visible_when_content_block_visible(monkeypatch):
     """The activity spinner stays visible while content streams."""
     from rich.text import Text
 
+    from pythinker_code.ui.shell.visualize import _live_view
+
+    # The verb rotates on wall-clock over a list that legitimately includes
+    # "Working"; pin it so the static-"Working…" regression guard below cannot
+    # false-positive during that verb's 10-minute rotation window.
+    monkeypatch.setattr(_live_view, "spinner_message", lambda now=None, **_kw: "Composing…")
     view = _LiveView(StatusUpdate())
     view.dispatch_wire_message(TurnBegin(user_input="test"))
     view.dispatch_wire_message(StepBegin(n=1))
@@ -286,7 +292,10 @@ def test_moon_fallback_after_all_tools_flushed(monkeypatch):
 def test_working_indicator_stays_visible_while_parallel_tool_still_running(monkeypatch):
     """The activity spinner stays visible while tool blocks are visible."""
     from pythinker_code.ui.shell.console import console as shell_console
+    from pythinker_code.ui.shell.visualize import _live_view
 
+    # Pin the wall-clock-rotated verb; see the content-block variant above.
+    monkeypatch.setattr(_live_view, "spinner_message", lambda now=None, **_kw: "Composing…")
     view = _LiveView(StatusUpdate())
     monkeypatch.setattr(shell_console, "print", lambda *args, **kwargs: None)
 

tests/ui_and_conv/test_modal_lifecycle.py

@@ -914,12 +914,17 @@ async def test_compose_equals_panels_plus_agent_output() -> None:
 
 
 @pytest.mark.asyncio
-async def test_compose_agent_output_includes_spinners_and_tool_calls() -> None:
+async def test_compose_agent_output_includes_spinners_and_tool_calls(monkeypatch) -> None:
     """compose_agent_output() should include activity indicators and tool call blocks."""
     from rich.text import Text
 
+    from pythinker_code.ui.shell.visualize import _live_view
     from pythinker_code.wire.types import ToolCall
 
+    # The spinner verb rotates on wall-clock over a list that legitimately
+    # includes "Working"; pin it so the static-"Working…" regression guard
+    # below cannot false-positive during that verb's rotation window.
+    monkeypatch.setattr(_live_view, "spinner_message", lambda now=None, **_kw: "Composing…")
     view = _LiveView(StatusUpdate())
     view._active_turn_depth = 1  # working fallback requires active turn