public void GetOrCreate_ValidActivatorAfterInitialization_Success()
{
using (CompositionHost host = CompositionHost.CreateCompositionHost(new ExportDescriptorProvider[0]))
{
Assert.True(host.TryGetExport(new CompositionContract(typeof(CompositionContext)), out object export));
LifetimeContext context = Assert.IsType<LifetimeContext>(export);
CompositionOperation operation = null;
var value = new object();
object GetOrCreateActivate(LifetimeContext getOrCreateContext, CompositionOperation getOrCreateOperator)
{
Assert.Same(context, getOrCreateContext);
Assert.Same(operation, getOrCreateOperator);
return value;
}
object Activator(LifetimeContext activatorContext, CompositionOperation activatorOperation)
{
operation = activatorOperation;
Assert.Same(value, context.GetOrCreate(1, operation, GetOrCreateActivate));
return "Hi";
}
Assert.Equal("Hi", CompositionOperation.Run(context, Activator));
Assert.Same(value, context.GetOrCreate(1, operation, GetOrCreateActivate));
}
}
public void GetOrCreate_NullOperation_ThrowsNullReferenceException()
{
using (CompositionHost host = CompositionHost.CreateCompositionHost(new ExportDescriptorProvider[0]))
{
Assert.True(host.TryGetExport(new CompositionContract(typeof(CompositionContext)), out object export));
LifetimeContext context = Assert.IsType<LifetimeContext>(export);
Assert.Throws<NullReferenceException>(() => context.GetOrCreate(1, null, Activator));
}
}