using NUnit.Framework;
using Python.Runtime;
using System.Runtime.InteropServices;
namespace Python.EmbeddingTest
{
class TestTypeManager
{
[SetUp]
public static void Init()
{
Runtime.Runtime.Initialize();
}
[TearDown]
public static void Fini()
{
// Don't shut down the runtime: if the python engine was initialized
// but not shut down by another test, we'd end up in a bad state.
}
[Test]
public static void TestNativeCode()
{
Assert.That(() => { var _ = TypeManager.NativeCode.Active; }, Throws.Nothing);
Assert.That(TypeManager.NativeCode.Active.Code.Length, Is.GreaterThan(0));
}
[Test]
public static void TestMemoryMapping()
{
Assert.That(() => { var _ = TypeManager.CreateMemoryMapper(); }, Throws.Nothing);
var mapper = TypeManager.CreateMemoryMapper();
// Allocate a read-write page.
int len = 12;
var page = mapper.MapWriteable(len);
Assert.That(() => { Marshal.WriteInt64(page, 17); }, Throws.Nothing);
Assert.That(Marshal.ReadInt64(page), Is.EqualTo(17));
// Mark it read-execute. We can still read, haven't changed any values.
mapper.SetReadExec(page, len);
Assert.That(Marshal.ReadInt64(page), Is.EqualTo(17));
// Test that we can't write to the protected page.
//
// We can't actually test access protection under Microsoft
// versions of .NET, because AccessViolationException is assumed to
// mean we're in a corrupted state:
// https://stackoverflow.com/questions/3469368/how-to-handle-accessviolationexception
//
// We can test under Mono but it throws NRE instead of AccessViolationException.
//
// We can't use compiler flags because we compile with MONO_LINUX
// while running on the Microsoft .NET Core during continuous
// integration tests.
if (System.Type.GetType ("Mono.Runtime") != null)
{
// Mono throws NRE instead of AccessViolationException for some reason.
Assert.That(() => { Marshal.WriteInt64(page, 73); }, Throws.TypeOf());
Assert.That(Marshal.ReadInt64(page), Is.EqualTo(17));
}
}
}
}