Files
quantconnect--lean/Tests/Common/Exceptions/InvalidTokenPythonExceptionInterpreterTests.cs
2026-07-13 13:02:50 +08:00

84 lines
3.5 KiB
C#

/*
* 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 NUnit.Framework;
using NUnit.Framework.Constraints;
using Python.Runtime;
using QuantConnect.Exceptions;
using System;
using System.Collections.Generic;
namespace QuantConnect.Tests.Common.Exceptions
{
[TestFixture]
public class InvalidTokenPythonExceptionInterpreterTests
{
private PythonException _pythonException;
[SetUp]
public void Setup()
{
using (Py.GIL())
{
try
{
// importing a module with syntax error 'x = 01' will throw
PyModule.FromString(Guid.NewGuid().ToString(), "x = 01");
}
catch (PythonException pythonException)
{
_pythonException = pythonException;
}
}
}
[TestCase(typeof(Exception), false)]
[TestCase(typeof(KeyNotFoundException), false)]
[TestCase(typeof(DivideByZeroException), false)]
[TestCase(typeof(InvalidOperationException), false)]
[TestCase(typeof(PythonException), true)]
public void CanInterpretReturnsTrueForOnlyInvalidTokenPythonExceptionType(Type exceptionType, bool expectedResult)
{
var exception = CreateExceptionFromType(exceptionType);
Assert.AreEqual(expectedResult, new InvalidTokenPythonExceptionInterpreter().CanInterpret(exception), $"Unexpected response for: {exception}");
}
[TestCase(typeof(Exception), true)]
[TestCase(typeof(KeyNotFoundException), true)]
[TestCase(typeof(DivideByZeroException), true)]
[TestCase(typeof(InvalidOperationException), true)]
[TestCase(typeof(PythonException), false)]
public void InterpretThrowsForNonInvalidTokenPythonExceptionTypes(Type exceptionType, bool expectThrow)
{
var exception = CreateExceptionFromType(exceptionType);
var interpreter = new InvalidTokenPythonExceptionInterpreter();
var constraint = expectThrow ? (IResolveConstraint)Throws.Exception : Throws.Nothing;
Assert.That(() => interpreter.Interpret(exception, NullExceptionInterpreter.Instance), constraint);
}
[Test]
public void VerifyMessageContainsStackTraceInformation()
{
var exception = CreateExceptionFromType(typeof(PythonException));
var assembly = typeof(PythonExceptionInterpreter).Assembly;
var interpreter = StackExceptionInterpreter.CreateFromAssemblies();
exception = interpreter.Interpret(exception, NullExceptionInterpreter.Instance);
Assert.True(exception.Message.Contains("x = 01"));
}
private Exception CreateExceptionFromType(Type type) => type == typeof(PythonException) ? _pythonException : (Exception)Activator.CreateInstance(type);
}
}