text: # Copyright 2014 BitPay, Inc.
  # Copyright (c) 2015-2018 The PIVX developers
  # Copyright (c) 2018 The Ion developers
  # Distributed under the MIT/X11 software license, see the accompanying
  # file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  import subprocess
  import os
  import json
  import sys
  
  def bctest(testDir, testObj, exeext):
  
  	execprog = testObj['exec'] + exeext
  	execargs = testObj['args']
  	execrun = [execprog] + execargs
  	stdinCfg = None
  	inputData = None
  	if "input" in testObj:
  		filename = testDir + "/" + testObj['input']
  		inputData = open(filename).read()
  		stdinCfg = subprocess.PIPE
  
  	outputFn = None
  	outputData = None
  	if "output_cmp" in testObj:
  		outputFn = testObj['output_cmp']
  		outputData = open(testDir + "/" + outputFn).read()
  	proc = subprocess.Popen(execrun, stdin=stdinCfg, stdout=subprocess.PIPE, stderr=subprocess.PIPE,universal_newlines=True)
  	try:
  		outs = proc.communicate(input=inputData)
  	except OSError:
  		print("OSError, Failed to execute " + execprog)
  		sys.exit(1)
  
  	if outputData and (outs[0] != outputData):
  		print("Output data mismatch for " + outputFn)
  		sys.exit(1)
  
  	wantRC = 0
  	if "return_code" in testObj:
  		wantRC = testObj['return_code']
  	if proc.returncode != wantRC:
  		print("Return code mismatch for " + outputFn)
  		sys.exit(1)
  
  def bctester(testDir, input_basename, buildenv):
  	input_filename = testDir + "/" + input_basename
  	raw_data = open(input_filename).read()
  	input_data = json.loads(raw_data)
  
  	for testObj in input_data:
  		bctest(testDir, testObj, buildenv.exeext)
  
  	sys.exit(0)
  
  