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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
import re
import sys
import hashlib
import argparse
import subprocess
from difflib import unified_diff
class DocTests:
def __init__(self, args):
scriptpath = os.path.dirname(os.path.realpath(__file__))
self.ledger = os.path.abspath(args.ledger)
self.sourcepath = os.path.abspath(args.file)
self.verbose = args.verbose
self.tests = args.examples
self.examples = dict()
self.test_files = list()
self.testin_token = 'command'
self.testout_token = 'output'
self.testdat_token = 'input'
self.validate_token = 'validate'
self.testwithdat_token = 'with_input'
def read_example(self):
endexample = re.compile(r'^@end\s+smallexample\s*$')
example = str()
while True:
line = self.file.readline()
self.current_line += 1
if len(line) <= 0 or endexample.match(line): break
example += line.replace("@@","@").replace("@{","{").replace("@}","}")
return example
def test_id(self, example):
return hashlib.sha1(example.rstrip()).hexdigest()[0:7].upper()
def find_examples(self):
startexample = re.compile(r'^@smallexample\s+@c\s+(%s|%s|%s)(?::([\dA-Fa-f]+|validate))?(?:,(.*))?'
% (self.testin_token, self.testout_token, self.testdat_token))
while True:
line = self.file.readline()
self.current_line += 1
if len(line) <= 0: break
startmatch = startexample.match(line)
if (startmatch):
test_begin_pos = self.file.tell()
test_begin_line = self.current_line
test_kind = startmatch.group(1)
test_id = startmatch.group(2)
test_options = dict()
for pair in re.split(r',\s*', str(startmatch.group(3))):
kv = re.split(r':\s*', pair, 2)
try:
test_options[kv[0]] = kv[1]
except IndexError:
pass
example = self.read_example()
test_end_pos = self.file.tell()
test_end_line = self.current_line
if not test_id:
print >> sys.stderr, 'Example', test_kind, 'in line', test_begin_line, 'is missing id.'
test_id = self.test_id(example)
if test_kind == self.testin_token:
print >> sys.stderr, 'Use', self.test_id(example)
elif test_kind == self.testin_token and test_id != self.validate_token and test_id != self.test_id(example):
print >> sys.stderr, 'Expected test id', test_id, 'for example' \
, test_kind, 'on line', test_begin_line, 'to be', self.test_id(example)
if test_id == self.validate_token:
test_id = "Val-" + str(test_begin_line)
if test_kind == self.testin_token:
test_kind = "validate-command"
elif test_kind == self.testdat_token:
test_kind = "validate-data"
try:
self.examples[test_id]
except KeyError:
self.examples[test_id] = dict()
try:
example = self.examples[test_id][test_kind][test_kind] + example
except KeyError:
pass
self.examples[test_id][test_kind] = {
'bpos': test_begin_pos,
'epos': test_end_pos,
'blin': test_begin_line,
'elin': test_end_line,
'opts': test_options,
test_kind: example,
}
def parse_command(self, test_id, example):
validate_command = False
try:
command = example[self.testin_token][self.testin_token]
except KeyError:
if 'validate-data' in example:
command = '$ ledger bal'
elif 'validate-command' in example:
validate_command = True
command = example['validate-command']['validate-command']
else:
return None
command = command.rstrip().split()
if command[0] == '$': command.remove('$')
index = command.index('ledger')
command[index] = self.ledger
for i,argument in enumerate('--args-only --columns 80'.split()):
command.insert(index+i+1, argument)
try:
findex = command.index('-f')
except ValueError:
try:
findex = command.index('--file')
except ValueError:
findex = index+1
command.insert(findex, '--file')
if validate_command:
command.insert(findex+1, 'sample.dat')
else:
command.insert(findex+1, test_id + '.dat')
return (command, findex+1)
def test_examples(self):
failed = set()
tests = self.examples.keys()
if self.tests:
tests = list(set(self.tests).intersection(tests))
temp = list(set(self.tests).difference(tests))
if len(temp) > 0:
print >> sys.stderr, 'Skipping non-existent examples: %s' % ', '.join(temp)
for test_id in tests:
validation = False
if "validate-data" in self.examples[test_id] or "validate-command" in self.examples[test_id]:
validation = True
example = self.examples[test_id]
try:
(command, findex) = self.parse_command(test_id, example)
except TypeError:
failed.add(test_id)
continue
try:
output = example[self.testout_token][self.testout_token]
except KeyError:
output = None
try:
input = example[self.testdat_token][self.testdat_token]
except KeyError:
try:
with_input = example[self.testin_token]['opts'][self.testwithdat_token]
input = self.examples[with_input][self.testdat_token][self.testdat_token]
except KeyError:
try:
input = example['validate-data']['validate-data']
except KeyError:
input = None
if command and (output or validation):
test_file_created = False
if findex:
scriptpath = os.path.dirname(os.path.realpath(__file__))
test_input_dir = scriptpath + '/../test/input/'
test_file = command[findex]
if not os.path.exists(test_file):
if input:
test_file_created = True
with open(test_file, 'w') as f:
f.write(input)
elif os.path.exists(test_input_dir + test_file):
command[findex] = test_input_dir + test_file
error = False
try:
verify = subprocess.check_output(command, stderr=subprocess.STDOUT)
except:
verify = str()
error = True
valid = (output == verify) or (not error and validation)
if valid and test_file_created:
os.remove(test_file)
if self.verbose > 0:
print test_id, ':', 'Passed' if valid else 'FAILED'
else:
sys.stdout.write('.' if valid else 'E')
if not valid:
failed.add(test_id)
if self.verbose > 1:
print ' '.join(command)
if not validation:
for line in unified_diff(output.split('\n'), verify.split('\n'), fromfile='generated', tofile='expected'):
print(line)
print
if not self.verbose:
print
if len(failed) > 0:
print "\nThe following examples failed:"
print " ", "\n ".join(failed)
return len(failed)
def main(self):
self.file = open(self.sourcepath)
self.current_line = 0
self.find_examples()
failed_examples = self.test_examples()
self.file.close()
return failed_examples
if __name__ == "__main__":
def getargs():
parser = argparse.ArgumentParser(prog='DocTests',
description='Test and validate ledger examples from the texinfo manual')
parser.add_argument('-v', '--verbose',
dest='verbose',
action='count',
help='be verbose. Add -vv for more verbosity')
parser.add_argument('-l', '--ledger',
dest='ledger',
type=str,
action='store',
required=True,
help='the path to the ledger executable to test with')
parser.add_argument('-f', '--file',
dest='file',
type=str,
action='store',
required=True,
help='the texinfo documentation file to run the examples from')
parser.add_argument('examples',
metavar='EXAMPLE',
type=str,
nargs='*',
help='the examples to test')
return parser.parse_args()
args = getargs()
script = DocTests(args)
status = script.main()
sys.exit(status)
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