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 +1,76 @@
+/*
+ * 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 System.IO;
+using NUnit.Framework;
+using Path = System.IO.Path;
+using System.Threading.Tasks;
+using QuantConnect.Interfaces;
+using QuantConnect.Lean.Engine.DataFeeds;
+
+namespace QuantConnect.Tests.Engine.DataCacheProviders
+{
+    [TestFixture]
+    public class ZipDataCacheProviderTests : DataCacheProviderTests
+    {
+        private readonly string _tempZipFileEntry = Path.GetTempFileName().Replace(".tmp", ".zip", StringComparison.InvariantCulture) + "#testEntry.csv";
+        private readonly Random _random = new Random();
+
+        public override IDataCacheProvider CreateDataCacheProvider()
+        {
+            return new ZipDataCacheProvider(TestGlobals.DataProvider);
+        }
+
+        [Test]
+        public void MultiThreadReadWriteTest()
+        {
+            var dataCacheProvider = new ZipDataCacheProvider(TestGlobals.DataProvider, cacheTimer: 0.1);
+
+            Parallel.For(0, 100, (i) =>
+            {
+                var data = new byte[300];
+                _random.NextBytes(data);
+
+                ReadAndWrite(dataCacheProvider, data);
+            });
+
+            dataCacheProvider.Dispose();
+        }
+
+        [Test]
+        public void StoreFailsCorruptedFile()
+        {
+            var dataCacheProvider = new ZipDataCacheProvider(TestGlobals.DataProvider, cacheTimer: 0.1);
+
+            var tempZipFileEntry = Path.GetTempFileName().Replace(".tmp", ".zip", StringComparison.InvariantCulture);
+
+            var data = new byte[300];
+            _random.NextBytes(data);
+
+            File.WriteAllText(tempZipFileEntry, "corrupted zip");
+
+            Assert.Throws<InvalidOperationException>(() => dataCacheProvider.Store(tempZipFileEntry + "#testEntry.csv", data));
+            dataCacheProvider.Dispose();
+        }
+
+        private void ReadAndWrite(IDataCacheProvider dataCacheProvider, byte[] data)
+        {
+            dataCacheProvider.Fetch(_tempZipFileEntry);
+            dataCacheProvider.Store(_tempZipFileEntry, data);
+        }
+    }
+}