Add "it works" test for bitcoin-tx

src/test/bctest.py

@@ -0,0 +1,35 @@
+# Copyright 2014 BitPay, Inc.
+# 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):
+	execargs = testObj['exec']
+	outputFn = testObj['output_cmp']
+	outputData = open(testDir + "/" + outputFn).read()
+
+	proc = subprocess.Popen(execargs, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+	try:
+		outs = proc.communicate()
+	except OSError:
+		print("OSError, Failed to execute " + execargs[0])
+		sys.exit(1)
+
+	if outs[0] != outputData:
+		print("Output data mismatch for " + outputFn)
+		sys.exit(1)
+
+def bctester(testDir, input_basename):
+	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)
+
+	sys.exit(0)
+