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using System;
using System.Collections.Generic;
using System.Linq;
using NUnit.Framework;
using Python.Runtime;
using PyRuntime = Python.Runtime.Runtime;
namespace Python.EmbeddingTest
{
public class TestConverter
{
static readonly Type[] _numTypes = new Type[]
{
typeof(short),
typeof(ushort),
typeof(int),
typeof(uint),
typeof(long),
typeof(ulong)
};
[OneTimeSetUp]
public void SetUp()
{
PythonEngine.Initialize();
}
[OneTimeTearDown]
public void Dispose()
{
PythonEngine.Shutdown();
}
[Test]
public void TestConvertSingleToManaged(
[Values(float.PositiveInfinity, float.NegativeInfinity, float.MinValue, float.MaxValue, float.NaN,
float.Epsilon)] float testValue)
{
var pyFloat = new PyFloat(testValue);
object convertedValue;
var converted = Converter.ToManaged(pyFloat.Handle, typeof(float), out convertedValue, false);
Assert.IsTrue(converted);
Assert.IsTrue(((float) convertedValue).Equals(testValue));
}
[Test]
public void TestConvertDoubleToManaged(
[Values(double.PositiveInfinity, double.NegativeInfinity, double.MinValue, double.MaxValue, double.NaN,
double.Epsilon)] double testValue)
{
var pyFloat = new PyFloat(testValue);
object convertedValue;
var converted = Converter.ToManaged(pyFloat.Handle, typeof(double), out convertedValue, false);
Assert.IsTrue(converted);
Assert.IsTrue(((double) convertedValue).Equals(testValue));
}
[Test]
public void CovertTypeError()
{
Type[] floatTypes = new Type[]
{
typeof(float),
typeof(double)
};
using (var s = new PyString("abc"))
{
foreach (var type in _numTypes.Union(floatTypes))
{
object value;
try
{
bool res = Converter.ToManaged(s.Handle, type, out value, true);
Assert.IsFalse(res);
var bo = Exceptions.ExceptionMatches(Exceptions.TypeError);
Assert.IsTrue(Exceptions.ExceptionMatches(Exceptions.TypeError)
|| Exceptions.ExceptionMatches(Exceptions.ValueError));
}
finally
{
Exceptions.Clear();
}
}
}
}
[Test]
public void ConvertOverflow()
{
using (var num = new PyLong(ulong.MaxValue))
{
IntPtr largeNum = PyRuntime.PyNumber_Add(num.Handle, num.Handle);
try
{
object value;
foreach (var type in _numTypes)
{
bool res = Converter.ToManaged(largeNum, type, out value, true);
Assert.IsFalse(res);
Assert.IsTrue(Exceptions.ExceptionMatches(Exceptions.OverflowError));
Exceptions.Clear();
}
}
finally
{
Exceptions.Clear();
PyRuntime.XDecref(largeNum);
}
}
}
[Test]
public void RawListProxy()
{
var list = new List<string> {"hello", "world"};
var listProxy = PyObject.FromManagedObject(list);
var clrObject = (CLRObject)ManagedType.GetManagedObject(listProxy.Handle);
Assert.AreSame(list, clrObject.inst);
}
[Test]
public void RawPyObjectProxy()
{
var pyObject = "hello world!".ToPython();
var pyObjectProxy = PyObject.FromManagedObject(pyObject);
var clrObject = (CLRObject)ManagedType.GetManagedObject(pyObjectProxy.Handle);
Assert.AreSame(pyObject, clrObject.inst);
var proxiedHandle = pyObjectProxy.GetAttr("Handle").As<IntPtr>();
Assert.AreEqual(pyObject.Handle, proxiedHandle);
}
}
}