128 lines
4.7 KiB
Python
128 lines
4.7 KiB
Python
# Copyright 2014 BitPay Inc.
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# Copyright 2016 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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from __future__ import division,print_function,unicode_literals
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import subprocess
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import os
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import json
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import sys
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import binascii
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import difflib
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import logging
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import pprint
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def parse_output(a, fmt):
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"""Parse the output according to specified format.
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Raise an error if the output can't be parsed."""
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if fmt == 'json': # json: compare parsed data
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return json.loads(a)
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elif fmt == 'hex': # hex: parse and compare binary data
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return binascii.a2b_hex(a.strip())
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else:
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raise NotImplementedError("Don't know how to compare %s" % fmt)
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def bctest(testDir, testObj, buildenv):
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"""Runs a single test, comparing output and RC to expected output and RC.
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Raises an error if input can't be read, executable fails, or output/RC
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are not as expected. Error is caught by bctester() and reported.
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"""
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# Get the exec names and arguments
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execprog = buildenv.BUILDDIR + "/src/" + testObj['exec'] + buildenv.exeext
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execargs = testObj['args']
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execrun = [execprog] + execargs
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# Read the input data (if there is any)
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stdinCfg = None
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inputData = None
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if "input" in testObj:
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filename = testDir + "/" + testObj['input']
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inputData = open(filename).read()
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stdinCfg = subprocess.PIPE
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# Read the expected output data (if there is any)
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outputFn = None
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outputData = None
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if "output_cmp" in testObj:
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outputFn = testObj['output_cmp']
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outputType = os.path.splitext(outputFn)[1][1:] # output type from file extension (determines how to compare)
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try:
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outputData = open(testDir + "/" + outputFn).read()
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except:
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logging.error("Output file " + outputFn + " can not be opened")
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raise
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if not outputData:
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logging.error("Output data missing for " + outputFn)
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raise Exception
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# Run the test
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proc = subprocess.Popen(execrun, stdin=stdinCfg, stdout=subprocess.PIPE, stderr=subprocess.PIPE,universal_newlines=True)
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try:
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outs = proc.communicate(input=inputData)
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except OSError:
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logging.error("OSError, Failed to execute " + execprog)
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raise
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if outputData:
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data_mismatch, formatting_mismatch = False, False
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# Parse command output and expected output
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try:
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a_parsed = parse_output(outs[0], outputType)
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except Exception as e:
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logging.error('Error parsing command output as %s: %s' % (outputType,e))
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raise
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try:
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b_parsed = parse_output(outputData, outputType)
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except Exception as e:
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logging.error('Error parsing expected output %s as %s: %s' % (outputFn,outputType,e))
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raise
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# Compare data
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if a_parsed != b_parsed:
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logging.error("Output data mismatch for " + outputFn + " (format " + outputType + ")")
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data_mismatch = True
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# Compare formatting
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if outs[0] != outputData:
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error_message = "Output formatting mismatch for " + outputFn + ":\n"
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error_message += "".join(difflib.context_diff(outputData.splitlines(True),
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outs[0].splitlines(True),
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fromfile=outputFn,
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tofile="returned"))
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logging.error(error_message)
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formatting_mismatch = True
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assert not data_mismatch and not formatting_mismatch
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# Compare the return code to the expected return code
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wantRC = 0
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if "return_code" in testObj:
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wantRC = testObj['return_code']
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if proc.returncode != wantRC:
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logging.error("Return code mismatch for " + outputFn)
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raise Exception
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def bctester(testDir, input_basename, buildenv):
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""" Loads and parses the input file, runs all tests and reports results"""
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input_filename = testDir + "/" + input_basename
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raw_data = open(input_filename).read()
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input_data = json.loads(raw_data)
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failed_testcases = []
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for testObj in input_data:
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try:
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bctest(testDir, testObj, buildenv)
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logging.info("PASSED: " + testObj["description"])
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except:
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logging.info("FAILED: " + testObj["description"])
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failed_testcases.append(testObj["description"])
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if failed_testcases:
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error_message = "FAILED_TESTCASES:\n"
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error_message += pprint.pformat(failed_testcases, width=400)
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logging.error(error_message)
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sys.exit(1)
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else:
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sys.exit(0)
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