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r"""
This is a script that can be used to run tests that require multiple
executables to be run e.g. those client-server tests.
Usage:
python vtkTestDriver.py --process exe1 arg11 arg12 ...
--process exe2 arg21 arg22 ...
--process ...
"""
import sys
import subprocess
import time
# Extract arguments for each process to execute.
command_lists = []
prev = None
for idx in range(1, len(sys.argv)):
if sys.argv[idx] == "--process":
if prev:
command_lists.append(sys.argv[prev:idx])
prev = idx+1
if prev <= len(sys.argv):
command_lists.append(sys.argv[prev:])
procs = []
for cmdlist in command_lists:
print >> sys.stderr, "Executing '", " ".join(cmdlist), "'"
proc = subprocess.Popen(cmdlist)
procs.append(proc)
# sleep to ensure that the process starts.
time.sleep(0.1)
# Now wait for each of the processes to terminate.
# If ctest times out, it will kill this process and all subprocesses will be
# terminated anyways, so we don't need to handle timeout specially.
for proc in procs:
proc.wait()
for proc in procs:
if proc.returncode != 0:
print >> sys.stderr, "ERROR: A process exited with error. Test will fail."
sys.exit(1) # error
print "All's well!"
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