Preserve Emperor gift opportunity before bot Extortion

tests/emperor-extortion-priority-controls.test.tsx

@@ -0,0 +1,57 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { Children, createElement, isValidElement } from 'react';
+import { renderToStaticMarkup } from 'react-dom/server';
+import type { Action } from '../game/engine';
+import { EmperorExtortionPriority, type EmperorExtortionPriorityProps } from '../components/emperor-extortion-priority';
+
+function props(): EmperorExtortionPriorityProps & { sent: Action[] } {
+  const sent: Action[] = [];
+  return {game:{emperorExtortionPriority:{event:'extortion-event',recipient:'ally',canContinue:true},
+    players:[{id:'ally',name:'Ally'}]}, busy:false, sent, act(action) {sent.push(action);}};
+}
+const render = (input: EmperorExtortionPriorityProps) => renderToStaticMarkup(createElement(EmperorExtortionPriority, input));
+function button(input: EmperorExtortionPriorityProps) {
+  const section = EmperorExtortionPriority(input); assert.ok(section);
+  const match = Children.toArray(section.props.children).find(child => isValidElement(child) &&
+    (child.props as {'data-testid'?: string})['data-testid'] === 'emperor-extortion-continue');
+  assert.ok(isValidElement<{onClick:() => void; disabled:boolean}>(match));
+  return match;
+}
+
+void test('the Emperor sees a persistent, event-bound Extortion opportunity', () => {
+  const input = props(), html = render(input);
+  assert.match(html, /Before Ally makes the Extortion choice/);
+  assert.match(html, /Continue to Extortion/);
+  assert.equal(button(input).props.disabled, false);
+  button(input).props.onClick();
+  assert.deepEqual(input.sent, [{type:'emperorExtortionContinue',event:'extortion-event'}]);
+});
+
+void test('other viewers see the same neutral opportunity without a Continue control or private data', () => {
+  const input = props();
+  input.game.emperorExtortionPriority!.canContinue = false;
+  Object.assign(input.game, {privateSpice:19, privateCard:'secret-card'});
+  const html = render(input);
+  assert.match(html, /Waiting for the Emperor/);
+  assert.doesNotMatch(html, /emperor-extortion-continue|secret-card|19/);
+  assert.deepEqual(input.sent, []);
+  input.game.emperorExtortionPriority = null;
+  assert.equal(render(input), '');
+});
+
+void test('busy, invalid, stale or consumed opportunities cannot submit', () => {
+  for (const change of ['busy','empty','event','permission','replace','close'] as const) {
+    const input = props();
+    if (change === 'busy') input.busy = true;
+    if (change === 'empty') input.game.emperorExtortionPriority!.event = '';
+    const control = button(input);
+    if (change === 'busy' || change === 'empty') assert.equal(control.props.disabled, true);
+    if (change === 'event') input.game.emperorExtortionPriority!.event = 'other';
+    if (change === 'permission') input.game.emperorExtortionPriority!.canContinue = false;
+    if (change === 'replace') input.game.emperorExtortionPriority = {...input.game.emperorExtortionPriority!};
+    if (change === 'close') input.game.emperorExtortionPriority = null;
+    control.props.onClick();
+    assert.deepEqual(input.sent, [], change);
+  }
+});