Improve tests

tests/api_send_wlan0_1s2r/receiver.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python
+
+def receive(node):
+    ##### Simple receive
+    code, data=node.receive("wlan0")
+    msg="Received: "+data if code == 0 else "Receive failed code="+str(code)
+    node.log(msg)
+
+
+def execute(api):
+    # Should works for all receivers
+    receive(api)
+
+    if api.node_id == 1:
+        receive(api) # Should works
+    else:
+        api.turn_off()
+        api.wait(1) # Node 2 should not receive anything during 1s
+        api.turn_on() 
+
+
+    if api.node_id == 1:
+        receive(api) # Should works
+    else:
+        api.wait(0.5) # Check if started communication get cancelled on turning off
+        api.turn_off() # Node 2 should not receive anything
+        api.wait(0.5) # Node 2 should not receive anything during 0.5s
+        api.turn_on() 
+