gr-zeromq: Increase socket setup time so tests are more reliable

The 250ms delay between starting a send and terminating a recv
was very boarderline when run on my machine.  Increasing this
time slightly produces much more reliable results.

Author: btashton

gr-zeromq/python/zeromq/qa_zeromq_pubsub.py

@@ -46,9 +46,9 @@ def test_001 (self):
         self.send_tb.connect(src, zeromq_pub_sink)
         self.recv_tb.connect(zeromq_sub_source, sink)
         self.recv_tb.start()
-        time.sleep(0.25)
+        time.sleep(0.5)
         self.send_tb.start()
-        time.sleep(0.25)
+        time.sleep(0.5)
         self.recv_tb.stop()
         self.send_tb.stop()
         self.recv_tb.wait()

gr-zeromq/python/zeromq/qa_zeromq_pushpull.py

@@ -44,9 +44,9 @@ def test_001 (self):
         self.send_tb.connect(src, zeromq_push_sink)
         self.recv_tb.connect(zeromq_pull_source, sink)
         self.recv_tb.start()
-        time.sleep(0.25)
+        time.sleep(0.5)
         self.send_tb.start()
-        time.sleep(0.25)
+        time.sleep(0.5)
         self.recv_tb.stop()
         self.send_tb.stop()
         self.recv_tb.wait()

gr-zeromq/python/zeromq/qa_zeromq_reqrep.py

@@ -47,9 +47,9 @@ def test_001 (self):
         self.send_tb.connect(src, zeromq_rep_sink)
         self.recv_tb.connect(zeromq_req_source, sink)
         self.recv_tb.start()
-        time.sleep(0.25)
+        time.sleep(0.5)
         self.send_tb.start()
-        time.sleep(0.25)
+        time.sleep(0.5)
         self.recv_tb.stop()
         self.send_tb.stop()
         self.recv_tb.wait()

gr-zeromq/python/zeromq/qa_zeromq_sub.py

@@ -52,7 +52,7 @@ def test_001 (self):
         self.tb.start()
         time.sleep(0.05)
         self.pub_socket.send(src_data.tostring())
-        time.sleep(0.25)
+        time.sleep(0.5)
         self.tb.stop()
         self.tb.wait()
         self.assertFloatTuplesAlmostEqual(sink.data(), src_data)
@@ -70,7 +70,7 @@ def test_002 (self):
         self.tb.start()
         time.sleep(0.05)
         self.pub_socket.send_multipart(src_data)
-        time.sleep(0.25)
+        time.sleep(0.5)
         self.tb.stop()
         self.tb.wait()