Improve signal test

palaviv · palaviv · commit 518aa7b4eb3d · 2019-07-31T20:03:08.000+03:00
diff --git a/tests/snippets/stdlib_signal.py b/tests/snippets/stdlib_signal.py
@@ -1,16 +1,33 @@
 import signal
 import time
+from testutils import assert_raises
+
+assert_raises(TypeError, lambda: signal.signal(signal.SIGINT, 2))
 
 signals = []
 
 def handler(signum, frame):
 	signals.append(signum)
 
 
-signal.signal(14, handler)
-assert signal.getsignal(14) is handler
+signal.signal(signal.SIGALRM, handler)
+assert signal.getsignal(signal.SIGALRM) is handler
+
+signal.alarm(1)
+time.sleep(2.0)
+assert signals == [signal.SIGALRM]
+
+signal.signal(signal.SIGALRM, signal.SIG_IGN)
+signal.alarm(1)
+time.sleep(2.0)
+
+assert signals == [signal.SIGALRM]
+
+signal.signal(signal.SIGALRM, handler)
+signal.alarm(1)
+time.sleep(2.0)
+
+assert signals == [signal.SIGALRM, signal.SIGALRM]
+
 
-signal.alarm(2)
-time.sleep(3.0)
-assert signals == [14]
 
