public void ShouldBeAbleToAddMethodsThatHaveAccessToTheMetaObjectInstanceItself()
{
var wasMethodCalled = new ManualResetEvent(false);
var metaObjectsAccessed = new List <MetaObject>();
// Notice how we can access the metaObject instance as part of the method body
Action <MetaObject> methodBody = self =>
{
metaObjectsAccessed.Add(self);
wasMethodCalled.Set();
};
var foo = new MetaObject();
foo.AddMethod("DoSomething", methodBody);
// Match the type signature
Assert.True(foo.LooksLike <ISampleDuckInterface>());
var duck = foo.CreateDuck <ISampleDuckInterface>();
duck.DoSomething();
Assert.True(wasMethodCalled.WaitOne(TimeSpan.FromMilliseconds(100)));
Assert.Single(metaObjectsAccessed, metaObject => ReferenceEquals(foo, metaObjectsAccessed.First()));
}
public void ShouldBeAbleToDetermineIfAMetaObjectCanFulfillAnInterfaceContract()
{
var wasMethodCalled = new ManualResetEvent(false);
Action methodBody = () => wasMethodCalled.Set();
// Add the new method that fulfills the ISampleDuckInterface contract
var foo = new MetaObject();
foo.AddMethod("DoSomething", methodBody);
Assert.True(foo.LooksLike <ISampleDuckInterface>());
}
public void ShouldBeAbleToPassTheDynamicObjectInstanceToAddedMethodsAsAnOptionalParameter()
{
var wasMethodCalled = new ManualResetEvent(false);
// Use the Action delegate as the method body
Action <DynamicObject> methodBody = _ => wasMethodCalled.Set();
var metaObject = new MetaObject();
metaObject.AddMethod("DoSomething", methodBody);
dynamic foo = metaObject;
foo.DoSomething();
Assert.True(wasMethodCalled.WaitOne(TimeSpan.FromMilliseconds(100)));
}
public void ShouldBeAbleToCreateDuckTypesFromTheMetaObjectItself()
{
var wasMethodCalled = new ManualResetEvent(false);
var metaObject = new MetaObject();
metaObject.AddMethod <Func <int> >("get_Value", () =>
{
wasMethodCalled.Set();
return(42);
});
var duck = metaObject.CreateDuck <ISampleInterfaceWithProperties>();
Assert.Equal(42, duck.Value);
Assert.True(wasMethodCalled.WaitOne(TimeSpan.FromMilliseconds(100)));
}
public void ShouldBeAbleToAddMethodWithoutUsingDynamicKeyword()
{
var wasMethodCalled = new ManualResetEvent(false);
// Use the Action delegate as the method body
Action methodBody = () => wasMethodCalled.Set();
var metaObject = new MetaObject();
metaObject.AddMethod("DoSomething", methodBody);
dynamic foo = metaObject;
foo.DoSomething();
Assert.True(wasMethodCalled.WaitOne());
}
