"Cannot mock types from mscorlib assembly"

DateTime.Now

File.ReadAllText

We have added the ability to fake:

DateTime.Now

And

File.ReadAllText

Currently we're addin MSCorLib class support according to users requests - is there a specific class you have in mind?

I'll add your request to our feature requests. The problem with faking the bahvior of GC is the possibility of breaking existing functionality - for example if you're using MemoryStream that uses GC.SUpressFinalizers it could show some wierd behavior if you manage to fake GC

We've added DateTime.Now support at 5.3.1 (25/5/2009)

public class Foo : IDisposable
{
    public void Dispose()
    {
        throw new NotImplementedException();
    }
}

[Test]
public void Test()
{
    var fake = Isolate.Fake.Instance<Foo>();
    Isolate.Swap.NextInstance<Foo>().With(fake);

    using (var f = new Foo())
    {
    }
}

ResourceManager resourceManager = Isolate.Fake.Instance<ResourceManager>(Members.ReturnRecursiveFakes);

Unfortunately I cannot fake the System.Resources.ResourceManager type.

Code:
ResourceManager resourceManager = Isolate.Fake.Instance<ResourceManager>(Members.ReturnRecursiveFakes);

        private class MyResourceManager : ResourceManager
        { }

        [Isolated]
        [TestMethod()]
        public void MyTest()
        {
            [...]
            ResourceManager resourceManager = Isolate.Fake.Instance<MyResourceManager>(Members.ReturnRecursiveFakes);

            Isolate.WhenCalled(() => target.ResourceManager).WillReturn(resourceManager);
            [...]