cts: Fix error message for uart port being occupied

This patch fixes the error messages displayed when a UART port connected
to DUT or TH is being occupied.

BUG=none
BRANCH=none
TEST=run cts.py -m i2c

Change-Id: I3fbb4068e8ee3af7a1b04f70ae70b3d870a19d2e
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/393327

2 files changed, 6 insertions, 6 deletions

diff --git a/cts/common/board.py b/cts/common/board.py
index 7b09e2a9f1..a36ca1a3a7 100644
--- a/cts/common/board.py
+++ b/cts/common/board.py
@@ -167,9 +167,9 @@ class Board(object):
         except (IOError, OSError):
           continue
     if not tty:
-      raise ValueError('Unable to read ' + self.name + '\n'
-                       'If you are running cat on a ttyACMx file,\n'
-                       'please kill that process and try again')
+      raise ValueError('Unable to read ' + self.board + '. If you are running '
+                       'cat on a ttyACMx file, please kill that process and '
+                       'try again')
     self.tty = tty
 
   def read_tty(self):
diff --git a/cts/cts.py b/cts/cts.py
index 2999e4d06f..6a02b065bc 100755
--- a/cts/cts.py
+++ b/cts/cts.py
@@ -324,9 +324,9 @@ class Cts(object):
     th_results = self.th.read_tty()
 
     if not dut_results or not th_results:
-      msg = ('Output missing from boards. If you have a process reading '
-             'ttyACMx, please kill that process and try again.')
-      raise ValueError(bad_cat_message)
+      raise ValueError('Output missing from boards. If you have a process '
+                       'reading ttyACMx, please kill that process and try '
+                       'again.')
 
     self.parse_output(dut_results, th_results)
     pretty_results = self.prettify_results()