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 +1,57 @@
+/*
+ * 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;
+
+namespace QuantConnect.Securities
+{
+    /// <summary>
+    /// Provides an implementation of <see cref="ICurrencyConverter"/> for use in
+    /// tests that don't depend on this behavior.
+    /// </summary>
+    public class ErrorCurrencyConverter : ICurrencyConverter
+    {
+        /// <summary>
+        /// Gets account currency
+        /// </summary>
+        public string AccountCurrency
+        {
+            get
+            {
+                throw new InvalidOperationException(Messages.ErrorCurrencyConverter.AccountCurrencyUnexpectedUsage);
+            }
+        }
+
+        /// <summary>
+        /// Provides access to the single instance of <see cref="ErrorCurrencyConverter"/>.
+        /// This is done this way to ensure usage is explicit.
+        /// </summary>
+        public static ICurrencyConverter Instance = new ErrorCurrencyConverter();
+
+        private ErrorCurrencyConverter()
+        {
+        }
+
+        /// <summary>
+        /// Converts a cash amount to the account currency
+        /// </summary>
+        /// <param name="cashAmount">The <see cref="CashAmount"/> instance to convert</param>
+        /// <returns>A new <see cref="CashAmount"/> instance denominated in the account currency</returns>
+        public CashAmount ConvertToAccountCurrency(CashAmount cashAmount)
+        {
+            throw new InvalidOperationException(Messages.ErrorCurrencyConverter.ConvertToAccountCurrencyPurposefullyThrow);
+        }
+    }
+}