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 +1,70 @@
+/*
+ * 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 Python.Runtime;
+using NUnit.Framework;
+using QuantConnect.Python;
+
+namespace QuantConnect.Tests.Python
+{
+    [TestFixture]
+    public class PythonVirtualEnvironmentTests
+    {
+        [TestCase(null)]
+        [TestCase("/something")]
+        [TestCase("non existing env")]
+        public void InvalidVirtualEnvironment(string venv)
+        {
+            Assert.IsFalse(PythonInitializer.ActivatePythonVirtualEnvironment(venv));
+        }
+
+        [Test]
+        public void VirtualEnvironment()
+        {
+            if (Directory.Exists("testenv"))
+            {
+                Directory.Delete("testenv", true);
+            }
+
+            using (Py.GIL())
+            {
+                PythonEngine.Exec("import venv;venv.create(\"testenv\", system_site_packages=True)");
+            }
+
+            Assert.IsTrue(PythonInitializer.ActivatePythonVirtualEnvironment("testenv"));
+        }
+
+        [Test, Explicit("Requires a virtual env setup")]
+        public void AssertVirtualEnvironment()
+        {
+            Assert.IsTrue(PythonInitializer.ActivatePythonVirtualEnvironment("/lean-testenv"));
+
+            using (Py.GIL())
+            {
+                var code = @"import lean
+
+def assertLeanVersion():
+    return lean.__version__";
+                var module = PyModule.FromString(Guid.NewGuid().ToString(), code);
+                dynamic assertVersion = module.GetAttr("assertLeanVersion");
+
+                Assert.AreEqual("1.0.221", (string)assertVersion());
+            }
+        }
+    }
+}