diff --git a/tests/api/test_portfolio_live.py b/tests/api/test_portfolio_live.py
index fdae217..7585c1a 100644
--- a/tests/api/test_portfolio_live.py
+++ b/tests/api/test_portfolio_live.py
@@ -233,23 +233,61 @@ def test_setup_idempotent_across_both_hooks(monkeypatch):
 
 
 def test_facade_injects_run_daily_for_channel_test(monkeypatch):
-    """channel_test 自注册依赖 facade.run_daily(缺注入时静默 no-op 永不开仓):
-    process_initialize 后 9:35/10:45/13:45/14:30 四时点应经注入的 run_daily 挂上。"""
+    """channel_test 自注册依赖 facade.run_daily(缺注入时静默 no-op 永不开仓)。
+    实盘(env 置位)走随启随验:只注册一个「启动后约90秒」的 probe_all 定时
+    (时间随墙钟=原断言四时点恒红的原因);四时点行为由下方无 env 直测钉死。"""
     import bullet_trade.core as bt_core
+    from datetime import datetime, timedelta
     from sanguo_portfolio import live_strategy
 
     registered = _patch_live_wiring(monkeypatch)
     monkeypatch.setenv("SANGUO_LIVE_STRATEGY", "channel_test")
     _reset_live_state()
 
+    before = datetime.now()
     live_strategy.process_initialize(object())
+    after = datetime.now()
 
-    daily_times = sorted(r[2] for r in registered if r[0] == "daily")
-    assert daily_times == ["10:45", "13:45", "14:30", "9:35"]
+    daily = [r for r in registered if r[0] == "daily"]
+    assert [r[1] for r in daily] == ["probe_all"]
+    # 注册时刻在 before~after 之间 → 探针时:分必落在 [floor(before+90s), floor(after+90s)]
+    # (纯时刻比较;strptime 是 1900 年日期不能与 now 直接比。跨午夜时两者恰为首尾)
+    probe_t = datetime.strptime(daily[0][2], "%H:%M").time()
+    lo_t = (before + timedelta(seconds=90)).replace(second=0, microsecond=0).time()
+    hi_t = (after + timedelta(seconds=90)).replace(second=0, microsecond=0).time()
+    assert lo_t <= probe_t <= hi_t or probe_t in (lo_t, hi_t)
     # facade 拿到的是 bullet_trade 顶层 run_daily 本尊,不是默认空 lambda
     assert live_strategy._STATE["strategy"].broker.run_daily is bt_core.run_daily
 
 
+def test_channel_test_backtest_mode_registers_four_fixed_times():
+    """回测/无 env 路径:9:35/10:45/13:45/14:30 四时点保留(随启随验只影响实盘)。"""
+    from sanguo_portfolio.strategies.channel_test import (
+        ChannelTestConfig, ChannelTestStrategy,
+    )
+
+    class _FakeBroker:
+        def __init__(self):
+            self.calls = []
+
+        def set_benchmark(self, *a):
+            pass
+
+        def set_option(self, *a):
+            pass
+
+        def run_daily(self, f, t):
+            self.calls.append((getattr(f, "__name__", str(f)), t))
+
+    b = _FakeBroker()
+    s = ChannelTestStrategy(
+        provider=object(), broker=b, config=ChannelTestConfig(on_demand=False))
+    s.initialize(object())
+
+    times = sorted(t for _, t in b.calls)
+    assert times == ["10:45", "13:45", "14:30", "9:35"]
+
+
 def test_normalize_vt_symbol_bare_code_gets_exchange_suffix():
     """CTA 实盘标的:裸 6 位码自动补交易所后缀(6→SSE,0/3→SZSE)。"""
     from sanguo_api.routes_live import _normalize_vt_symbol