chore: import upstream snapshot with attribution

2026-07-13 13:02:50 +08:00
commit 0fc60fdcb1
5008 changed files with 910633 additions and 0 deletions
@@ -0,0 +1,62 @@
+/*
+ * QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
+ * Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
+
+using System;
+using NUnit.Framework;
+using QuantConnect.Indicators;
+
+namespace QuantConnect.Tests.Indicators
+{
+    [TestFixture]
+    public class SumTests : CommonIndicatorTests<IndicatorDataPoint>
+    {
+        protected override IndicatorBase<IndicatorDataPoint> CreateIndicator()
+        {
+            return new Sum(2);
+        }
+
+        protected override string TestFileName => "";
+
+        protected override string TestColumnName => "";
+
+        protected override void RunTestIndicator(IndicatorBase<IndicatorDataPoint> indicator)
+        {
+            var time = DateTime.UtcNow;
+
+            foreach (var i in new[] {1, 2, 3})
+            {
+                indicator.Update(time.AddDays(i), i);
+            }
+
+            Assert.AreEqual(indicator.Current.Value, 2m + 3m);
+        }
+
+        [Test]
+        public override void ResetsProperly()
+        {
+            var sum = (Sum) CreateIndicator();
+            RunTestIndicator(sum);
+
+            Assert.IsTrue(sum.IsReady);
+
+            sum.Reset();
+
+            TestHelper.AssertIndicatorIsInDefaultState(sum);
+            Assert.AreEqual(sum.Current.Value, 0m);
+            sum.Update(DateTime.UtcNow, 1);
+            Assert.AreEqual(sum.Current.Value, 1m);
+        }
+    }
+}