Add third_party/pexpect

third_party/pexpect/tests/pexpectTest.py

+#!/usr/bin/env python
+'''
+PEXPECT LICENSE
+
+    This license is approved by the OSI and FSF as GPL-compatible.
+        http://opensource.org/licenses/isc-license.txt
+
+    Copyright (c) 2012, Noah Spurrier <noah@noah.org>
+    PERMISSION TO USE, COPY, MODIFY, AND/OR DISTRIBUTE THIS SOFTWARE FOR ANY
+    PURPOSE WITH OR WITHOUT FEE IS HEREBY GRANTED, PROVIDED THAT THE ABOVE
+    COPYRIGHT NOTICE AND THIS PERMISSION NOTICE APPEAR IN ALL COPIES.
+    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+'''
+
+import time
+import pexpect
+import sys
+
+def getProcessResults(cmd, timeLimit=20):
+  '''
+  executes 'cmd' as a child process and returns the child's output,
+  the duration of execution, and the process exit status. Aborts if
+  child process does not generate output for 'timeLimit' seconds.
+  '''
+  output = ""
+  startTime = time.time()
+  child = pexpect.spawn(cmd, timeout=10)
+  child.logfile = sys.stdout
+
+  while 1:
+    try:
+      # read_nonblocking will add to 'outout' one byte at a time
+      # newlines can show up as '\r\n' so we kill any '\r's which
+      # will mess up the formatting for the viewer
+      output += child.read_nonblocking(timeout=timeLimit).replace("\r","")
+    except pexpect.EOF as e:
+      print(str(e))
+      # process terminated normally
+      break
+    except pexpect.TIMEOUT as e:
+      print(str(e))
+      output += "\nProcess aborted by FlashTest after %s seconds.\n" % timeLimit
+      print(child.isalive())
+      child.kill(9)
+      break
+
+  endTime = time.time()
+  child.close(force=True)
+
+  duration = endTime - startTime
+  exitStatus = child.exitstatus
+
+  return (output, duration, exitStatus)
+
+cmd = "./ticker.py"
+
+result, duration, exitStatus = getProcessResults(cmd)
+
+print("result: %s" % result)
+print("duration: %s" % duration)
+print("exit-status: %s" % exitStatus)
+