Host test: wrapped mbed.serial.timeout into separate function to avoid traceback and send proper IO_SERIAL error from host test(s)

workspace_tools/host_tests/echo.py

@@ -29,7 +29,7 @@ class EchoTest(Test):
         TEST="longer serial test"
         check = True
         for i in range(1, 100):
-            self.mbed.serial.write(TEST + "\n")
+            self.mbed.serial_write(TEST + "\n")
             l = self.mbed.serial.readline().strip()
             if not l: continue
 

workspace_tools/host_tests/host_test.py

@@ -124,12 +124,12 @@ class Mbed:
     def serial_write(self, write_buffer):
         """ Wraps self.mbed.serial object write method
         """
-        result = -1
+        result = None
         if self.serial:
             try:
                 result = self.serial.write(write_buffer)
             except:
-               result = -1
+               result = None
         return result
 
     def safe_sendBreak(self, serial):

workspace_tools/host_tests/stdio_auto.py

@@ -31,7 +31,7 @@ class StdioTest(DefaultTest):
         for i in range(1, 5):
             random_integer = random.randint(-10000, 10000)
             print "Generated number: " + str(random_integer)
-            self.mbed.serial.write(str(random_integer) + "\n")
+            self.mbed.serial_write(str(random_integer) + "\n")
             serial_stdio_msg = ""
 
             ip_msg_timeout = self.mbed.options.timeout

workspace_tools/host_tests/tcpecho_client_auto.py

@@ -33,7 +33,7 @@ class TCPEchoClientTest(Test):
         self.mbed.reset()
         print "Sending server IP Address to target..."
         connection_str = ip_address + ":" + str(port_no) + "\n"
-        self.mbed.serial.write(connection_str)
+        self.mbed.serial_write(connection_str)
 
 
 class TCPEchoClient_Handler(BaseRequestHandler):

workspace_tools/host_tests/udpecho_client_auto.py

@@ -32,7 +32,7 @@ class UDPEchoClientTest(Test):
         self.mbed.reset()
         print "Sending server IP Address to target..."
         connection_str = ip_address + ":" + str(port_no) + "\n"
-        self.mbed.serial.write(connection_str)
+        self.mbed.serial_write(connection_str)
 
 
 class UDPEchoClient_Handler(BaseRequestHandler):