cts: Fail script when build or flash fails

This change makes cts.py fail when building or flashing a module for
DUT or TH fails.

BUG=none
BRANCH=none
TEST=Made cts.py fail by injecting build and flash error

Change-Id: Iec1e11f4a8c261eb4c989b118df218e86cb6f5f1
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/393326
Reviewed-by: Randall Spangler <rspangler@chromium.org>

2 files changed, 11 insertions, 7 deletions

diff --git a/cts/common/board.py b/cts/common/board.py
index 68d447fb51..7b09e2a9f1 100644
--- a/cts/common/board.py
+++ b/cts/common/board.py
@@ -93,7 +93,7 @@ class Board(object):
     for cmd in commands:
       args += ['-c', cmd]
     args += ['-c', 'shutdown']
-    sp.call(args)
+    return sp.call(args)
 
   def build(self, module, ec_dir, debug=False):
     """Builds test suite module for board
@@ -116,7 +116,7 @@ class Board(object):
       cmds.append('CTS_DEBUG=TRUE')
 
     print ' '.join(cmds)
-    sp.call(cmds)
+    return sp.call(cmds)
 
   def flash(self):
     """Flashes board with most recent build ec.bin"""
@@ -125,7 +125,7 @@ class Board(object):
            'init',
            'reset init',
            'flash write_image erase %s %s' % (image_path, self.flash_offset)]
-    self.send_open_ocd_commands(cmd)
+    return self.send_open_ocd_commands(cmd)
 
   def to_string(self):
     s = ('Type: Board\n'
diff --git a/cts/cts.py b/cts/cts.py
index 983b9751d2..2999e4d06f 100755
--- a/cts/cts.py
+++ b/cts/cts.py
@@ -94,14 +94,18 @@ class Cts(object):
 
   def build(self):
     """Build images for DUT and TH"""
-    self.dut.build(self.module, self.ec_dir, self.debug)
-    self.th.build(self.module, self.ec_dir, self.debug)
+    if self.dut.build(self.module, self.ec_dir, self.debug):
+      raise RuntimeError('Building module %s for DUT failed' % (self.module))
+    if self.th.build(self.module, self.ec_dir, self.debug):
+      raise RuntimeError('Building module %s for TH failed' % (self.module))
 
   def flash_boards(self):
     """Flashes th and dut boards with their most recently build ec.bin"""
     self.identify_boards()
-    self.th.flash()
-    self.dut.flash()
+    if self.th.flash():
+      raise RuntimeError('Flashing TH failed')
+    if self.dut.flash():
+      raise RuntimeError('Flashing DUT failed')
 
   def setup(self):
     """Setup boards"""