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EDIT :: test_tool.py

from __future__ import with_statement import os import sys import textwrap import unittest import subprocess import tempfile try: # Python 3.x from test.support import strip_python_stderr except ImportError: # Python 2.6+ try: from test.test_support import strip_python_stderr except ImportError: # Python 2.5 import re def strip_python_stderr(stderr): return re.sub( r"\[\d+ refs\]\r?\n?$".encode(), "".encode(), stderr).strip() def open_temp_file(): if sys.version_info >= (2, 6): file = tempfile.NamedTemporaryFile(delete=False) filename = file.name else: fd, filename = tempfile.mkstemp() file = os.fdopen(fd, 'w+b') return file, filename class TestTool(unittest.TestCase): data = """ [["blorpie"],[ "whoops" ] , [ ],\t"d-shtaeou",\r"d-nthiouh", "i-vhbjkhnth", {"nifty":87}, {"morefield" :\tfalse,"field" :"yes"} ] """ expect = textwrap.dedent("""\ [ [ "blorpie" ], [ "whoops" ], [], "d-shtaeou", "d-nthiouh", "i-vhbjkhnth", { "nifty": 87 }, { "field": "yes", "morefield": false } ] """) def runTool(self, args=None, data=None): argv = [sys.executable, '-m', 'simplejson.tool'] if args: argv.extend(args) proc = subprocess.Popen(argv, stdin=subprocess.PIPE, stderr=subprocess.PIPE, stdout=subprocess.PIPE) out, err = proc.communicate(data) self.assertEqual(strip_python_stderr(err), ''.encode()) self.assertEqual(proc.returncode, 0) return out.decode('utf8').splitlines() def test_stdin_stdout(self): self.assertEqual( self.runTool(data=self.data.encode()), self.expect.splitlines()) def test_infile_stdout(self): infile, infile_name = open_temp_file() try: infile.write(self.data.encode()) infile.close() self.assertEqual( self.runTool(args=[infile_name]), self.expect.splitlines()) finally: os.unlink(infile_name) def test_infile_outfile(self): infile, infile_name = open_temp_file() try: infile.write(self.data.encode()) infile.close() # outfile will get overwritten by tool, so the delete # may not work on some platforms. Do it manually. outfile, outfile_name = open_temp_file() try: outfile.close() self.assertEqual( self.runTool(args=[infile_name, outfile_name]), []) with open(outfile_name, 'rb') as f: self.assertEqual( f.read().decode('utf8').splitlines(), self.expect.splitlines() ) finally: os.unlink(outfile_name) finally: os.unlink(infile_name)

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