PSC daily candle history and pixel candlestick chart

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/Decentralized.Domain.Tests/Program.cs

@@ -1408,6 +1408,32 @@ internal static class Program
             Check(f2 == 0, "小额内幕卖出安全");
         });
 
+        Test("日 K：开盘、日内高低、成交量、收盘、均线、保留天数", () =>
+        {
+            var cb = new CandleBook();
+            cb.Open(Assets.PSC, 5, 100);
+            cb.Tick(Assets.PSC, 5, 120, 3000);
+            cb.Tick(Assets.PSC, 5, 90, 500, true);
+            cb.Close(Assets.PSC, 5, 105);
+            var k = cb.Of(Assets.PSC)[0];
+            Check(k.O == 100 && k.H == 120 && k.L == 90 && k.C == 105 && k.Closed, "开高低收");
+            Check(k.VolNpc == 3000 && k.VolPlayer == 500, "成交量分大户和玩家");
+            cb.Tick(Assets.PSC, 5, 200);
+            Check(k.H == 120 && k.C == 105, "收盘后不再变");
+            cb.Tick(Assets.PSC, 6, 110);
+            Check(cb.Of(Assets.PSC).Count == 2 && cb.Of(Assets.PSC)[1].O == 110, "读档时没有当天的蜡烛就按现价开一根");
+            var cb2 = new CandleBook();
+            cb2.Open(Assets.PSC, 5, 100); cb2.Close(Assets.PSC, 5, 105);
+            cb2.Open(Assets.PSC, 6, 98);
+            var k6 = cb2.Of(Assets.PSC)[1];
+            Check(k6.O == 105 && k6.H == 105 && k6.L == 98 && k6.C == 98, "开盘接昨天收盘，夜间变动算进今天这根");
+            for (int d = 7; d < 7 + CandleBook.Keep + 10; d++) { cb.Open(Assets.PSC, d, d); cb.Close(Assets.PSC, d, d); }
+            Check(cb.Of(Assets.PSC).Count == CandleBook.Keep, "只保留最近若干天");
+            var ma = CandleBook.Ma(new List<Candle> { new Candle { C = 1 }, new Candle { C = 3 }, new Candle { C = 5 } }, 2);
+            Check(ma[0] == 1 && ma[1] == 2 && ma[2] == 4, "均线");
+            Check(cb.Of("SPARK").Count == 0, "没有的币种是空的");
+        });
+
         Test("预测市场：先验概率", () =>
         {
             Check(Math.Abs(PredictMath.PurityAtLeast(8500, 8000, 8999) - 0.5) < 1e-9, "纯度 8500 以上一半");