public void TestNegation()
{
AutoResetEvent autoResetEvent = new AutoResetEvent(false);
bool result = false;
// Create elements
var source = new LogicEmitter();
var filter = new NotGate();
var sink = new LogicActionInvoker(value =>
{
result = value;
autoResetEvent.Set(); // wait for processing to finish
});
// Build the graph
source.AttachOutput(filter);
filter.AttachOutput(sink);
// Start processing
source.StartProcessing();
// Test initial state
Assert.IsFalse(result);
// Emit and test
source.EmitTrue(); autoResetEvent.WaitOne();
Assert.IsFalse(result);
// Emit and test
source.EmitTrue(); autoResetEvent.WaitOne();
Assert.IsFalse(result);
// Emit and test
source.EmitFalse(); autoResetEvent.WaitOne();
Assert.IsTrue(result);
// Emit and test
source.EmitFalse(); autoResetEvent.WaitOne();
Assert.IsTrue(result);
// Emit and test
source.EmitTrue(); autoResetEvent.WaitOne();
Assert.IsFalse(result);
// Emit and test
source.EmitFalse(); autoResetEvent.WaitOne();
Assert.IsTrue(result);
// Emit and test
source.EmitFalse(); autoResetEvent.WaitOne();
Assert.IsTrue(result);
// Emit and test
source.EmitTrue(); autoResetEvent.WaitOne();
Assert.IsFalse(result);
}
