signal order test is now ignored

src/main/java/teetime/stage/basic/Delay.java

@@ -24,7 +24,7 @@ public final class Delay<T> extends AbstractStage {
 
 		Long timestampTrigger = this.timestampTriggerInputPort.receive();
 		if (null == timestampTrigger) {
-			returnNoElement();
+			return; // BETTER use returnNoElement(). so far, RunnableProducerStages cannot handle the NOT_ENOUGH__INPUT_EXCEPTION
 		}
 
 		sendAllBufferedEllements();

src/test/java/teetime/framework/pipe/SpScPipeTest.java

@@ -4,6 +4,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 import org.junit.Assert;
+import org.junit.Ignore;
 import org.junit.Test;
 
 import teetime.framework.AbstractInterThreadPipe;
@@ -16,6 +17,8 @@ import teetime.framework.signal.ValidatingSignal;
 
 public class SpScPipeTest {
 
+	@Ignore
+	// ignore as long as this test passes null ports to SpScPipe
 	@Test
 	public void testSignalOrdering() throws Exception {
 		OutputPort<Object> sourcePort = null;