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
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+/*
+ * 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.IO;
+using NUnit.Framework;
+using QuantConnect.Interfaces;
+
+namespace QuantConnect.Tests.Engine.DataCacheProviders
+{
+    /// <summary>
+    /// Abstract class the provides common test cases for all DataCacheProviders
+    /// </summary>
+    public abstract class DataCacheProviderTests
+    {
+        protected IDataCacheProvider DataCacheProvider { get; set; }
+
+        [OneTimeSetUp]
+        public void Setup()
+        {
+            DataCacheProvider = CreateDataCacheProvider();
+        }
+
+        [OneTimeTearDown]
+        public void TearDown()
+        {
+            DataCacheProvider.Dispose();
+        }
+
+        public abstract IDataCacheProvider CreateDataCacheProvider();
+
+        [TestCase("../../../Data/equity/usa/minute/aapl/20140606_trade.zip")]
+        [TestCase("../../../Data/equity/usa/daily/aapl.zip#aapl.csv")]
+        [TestCase("../../../Data/equity/usa/daily/aapl.zip")]
+        public void CanFetchDataThatExists(string dataPath)
+        {
+            using(var stream = DataCacheProvider.Fetch(dataPath))
+            using (var reader = new StreamReader(stream))
+            {
+                Assert.IsFalse(string.IsNullOrEmpty(reader.ReadLine()));
+            }
+        }
+
+        [Test]
+        public void CannotFetchDataThatDoesNotExist()
+        {
+            var stream = DataCacheProvider.Fetch("../../../Data/equity/usa/minute/aapl/19980606_trade.zip");
+
+            Assert.IsNull(stream);
+        }
+    }
+}