#!/usr/bin/env python
#
# by Holger Doebler <stephaho@informatik.hu-berlin.de>
#
# This python script is intended to help in verification of your solution
# of the Sommersemester 2018 Digitale Systeme C Programmierprojekt.
#
#
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
from __future__ import with_statement
from itertools import chain
import sys
def print_help_message():
print("""Usage: check_result [-q|-qq] INPUT|SAMPLE_OUTPUT YOUR_OUTPUT
Depending on the first file given, checks for errors in the file
given as second argument.
ARGUMENTS (required)
If the first argument is a sample output file as provided, it
checks whether SAMPLE_OUTPUT and YOUR_OUTPUT are compatible.
If the first argument is an input file, check_result will check
whether YOUR_OUTPUT is a correct 1x2-tiling of the area defined by
INPUT. Note that check_result will not perform any checks, if
YOUR_OUTPUT states 'None', i.e., if your 'solution' is that there
does not exist a 1x2 tiling of the INPUT.
If YOUR_OUTPUT is either "-" or omitted, it is read from stdin.
OPTIONS
-q Only report errors. Suppress output PASSED and FAILED and INFO.
-qq Suppress all output. Exit code is the only feedback.
WARNING
This script is intended to be portable across platforms and python
versions. IMHO it does not qualify as well-written modern
python. Use this script as it is. Trying to replicate any of its
functionality, e.g. reading the input, as part of your solution is
probably a very bad idea.
EXIT CODES:
0 Test passed. YOUR_OUTPUT seems to be correct.
1 Uncaught exception. Please send a bug report.
2 Invocation / IO error
10-16 Malicious input file content. Input file itself cannot be correct.
20 Cannot perform any checks. YOUR_OUTPUT is "None", which might be
correct.
21 Test failed. YOUR_OUTPUT is wrong.
Send bug reports and suggestions for improvement to
Holger Doebler <stephaho@informatik.hu-berlin.de>
""")
sys.exit(2)
verbosity = 2
def pre(s):
if verbosity > 0:
print('ERROR: ' + s)
def pri(s):
if verbosity > 1:
print(s)
def read_tile_file(path, allow_input_file):
if path == '-':
f = sys.stdin
else:
try:
f = open(path)
except IOError:
print_help_message()
with f:
i = iter(f)
try:
l = next(i)
except UnicodeDecodeError:
pre('File "%s" contains illegal character.' % (path,))
sys.exit(15)
except StopIteration:
pre('file "%s" seems to be empty.' % path)
sys.exit(2)
if l.strip() == 'None':
try:
l = next(i)
except UnicodeDecodeError:
pre('File "%s" line #%d contains illegal character.' % (path, 1))
sys.exit(15)
except StopIteration:
return ('solution', None)
pre('file "%s" line "None" followed by further illegal lines.'
% path)
sys.exit(10)
lines = chain([l], i)
read_input_file = False
if allow_input_file:
read_input_file = True
try:
xy = tuple(map(int, l.split()))
if len(xy) != 2:
read_input_file = False
except ValueError:
read_input_file = False
res = set()
if read_input_file:
for j,l in enumerate(lines, start=1):
try:
xy = tuple(map(int, l.split()))
except ValueError:
xy = ()
if len(xy) != 2 or xy[0] < 0 or xy[1] < 0:
pre('File %s line #%d does not have the correct '
'input file format.' % (path, j))
sys.exit(14)
if xy in res:
pre('File "%s" line #%d is a duplicate.' % (path, j))
sys.exit(15)
res.add(xy)
return ('input', res)
else:
for j,l in enumerate(lines, start=1):
try:
(x1,y1),(x2,y2) = tuple((tuple(map(int,x.split()))
for x in l.split(';')))
if any([z < 0 for z in (x1,y1,x2,y2)]):
raise ValueError
except ValueError:
pre('Illegal line format in file "%s" line #%d.'
% (path, j))
sys.exit(11)
if (x1!=x2 and y1!=y2) or (x1==x2 and y1==y2):
pre('File "%s" line #%d does not describe a 1x2tile.'
% (path, j))
sys.exit(12)
for xy in ((x1,y1),(x2,y2)):
if xy in res:
pre('Tile in file "%s" line #%d overlaps with '
'other tiles in this file.' % (path, j))
sys.exit(13)
res.add(xy)
return ('solution', res)
if __name__=='__main__':
for verb, flag in enumerate(('-qq', '-q')):
while flag in sys.argv:
verbosity = verb
sys.argv.remove(flag)
if len(sys.argv) == 2:
sys.argv.append('-')
if len(sys.argv) != 3:
print_help_message()
t1 = read_tile_file(sys.argv[1], True)
t2 = read_tile_file(sys.argv[2], False)
if t1[1] == t2[1]:
pri('PASSED')
sys.exit(0)
if t2[1] is None and t1[0] == 'input':
pri('INFO: "%s" is an input file and "%s" sais "None". Cannot check '
'whether this is the correct answer.'
% tuple(sys.argv[1:]))
sys.exit(20)
else:
pri('FAILED')
sys.exit(21)