update gen_testdata

- add more packets
- fix counter for one packet

netpfga/minip4/testdata/gen_testdata-port1.py

@@ -101,6 +101,7 @@ lookup_table = {
 }
 
 def test_port1():
+    """ packets for a certain mac always go to nf0 """
     pktCnt = 0
 
     # First ethernet
@@ -108,6 +109,14 @@ def test_port1():
     pkt = Ether(dst=MAC2, src=MAC1)
     pkt = pad_pkt(pkt, 64)
     applyPkt(pkt, 'nf0', pktCnt)
+
+    pktCnt += 1
+    expPkt(pkt,   'nf0')
+
+    pktCnt += 1
+    applyPkt(pkt, 'nf1', pktCnt)
+
+    pktCnt += 1
     expPkt(pkt,   'nf0')
 
 # Test that packets are being mirrored