tests: Add expect script for nativenet tests

tests/nativenet/Makefile

@@ -14,3 +14,6 @@ FORCE:
 sender: CFLAGS += -DSENDER
 sender: APPLICATION = nativenet_sender
 sender: FORCE all
+
+test:
+	./tests/01-tests.py

tests/nativenet/tests/01-tests.py

@@ -0,0 +1,38 @@
+#! /usr/bin/env python
+
+import sys
+from pexpect import spawn
+
+if __name__ == "__main__":
+    try:
+        if len(sys.argv) > 1:
+            expected_received = int(sys.argv[1])
+        else:
+            expected_received = 5
+    except TypeError:
+        sys.stderr.write("Usage: "+str(sys.argv[0])+" [<expected 'received'>]\n")
+        sys.exit(1)
+
+    receiver = spawn("bin/native/nativenet.elf tap0")
+    sender = spawn("bin/native/nativenet_sender.elf tap1")
+
+
+    receiver.expect(r"main\(\): initializing transceiver")
+    receiver.expect(r"main\(\): starting transceiver")
+    receiver.expect(r"main\(\): starting radio thread")
+    receiver.expect("Start receiving")
+    receiver.expect(r"\[nativenet\] trying to set address \d+")
+
+    sender.expect(r"main\(\): initializing transceiver")
+    sender.expect(r"main\(\): starting transceiver")
+    sender.expect(r"\[nativenet\] trying to set address \d+")
+    sender.expect("Start sending packets")
+
+    while expected_received > 0:
+        receiver.expect("received")
+        expected_received -= 1
+
+    if not sender.terminate():
+        sender.terminate(force=True)
+    if not receiver.terminate():
+        receiver.terminate(force=True)