#!/usr/bin/env python

# Copyright (c) 2012-2013, Itzik Kotler

# All rights reserved.

#

# Redistribution and use in source and binary forms, with or without

# modification, are permitted provided that the following conditions are met:

#

# * Redistributions of source code must retain the above copyright

# notice, this list of conditions and the following disclaimer.

#

# * Redistributions in binary form must reproduce the above copyright

# notice, this list of conditions and the following disclaimer in the

# documentation and/or other materials provided with the distribution.

#

# * Neither the name of the author nor the names of its contributors may

# be used to endorse or promote products derived from this software without

# specific prior written permission.

#

# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND

# ANY EXPRESS 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 COPYRIGHT OWNER 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.

import sys

import os

# Add `internal` directory (i.e. ../) to sys.path

sys.path.append(os.path.abspath('../'))

# Local imports

import internal.eval

ATOM = [

('literal_underscore', '_'),

('literal_true_expr', '1 == 1'),

('literal_false_expr', '1 != 1'),

('literal_int', '1'),

('literal_float', '0.5'),

('literal_string', '\"foobar\"'),

('literal_true', 'True'),

('literal_false', 'False'),

('literal_none', 'None'),

('import_stmt', 'import math'),

('assignment_stmt', 'x = 0'),

('python_expr', '1+1'),

('pythonect_expr', '$[1->1]')

]

OPERATOR = [

(None, None),

('comma', ','),

('async', '->'),

('sync', '|')

]

# ATOM OPERATOR ATOM OPERATOR ATOM

MAX_DEPTH = 5

def __type_wrapper(data):

if isinstance(data, str):

return '\'%s\'' % (data)

return data

def pythonect_expr_generator(name=[], expr=[], depth=0):

for (type, value) in ATOM:

name.append(type)

expr.append(value)

# ATOM AND OPERATOR

if (depth + 2 < MAX_DEPTH):

for (type, value) in OPERATOR:

if type is None:

yield (name, expr)

continue

name.append(type)

expr.append(value)

for (return_type, return_value) in pythonect_expr_generator([], [], depth + 2):

yield(name + return_type, expr + return_value)

name.pop()

expr.pop()

# ATOM

else:

yield (name, expr)

name.pop()

expr.pop()

def main():

for (name, expr) in pythonect_expr_generator():

try:

print '\tdef test_%s(self):\n\n\t\tself.assertEqual( internal.eval.eval(\'%s\', {}, {}) , %s )\n' % \

('_'.join(name), ' '.join(expr), __type_wrapper(internal.eval.eval(' '.join(expr), {}, {})))

except Exception as e:

print "%s raises Exception %s" % (' '.join(expr), str(e))

if __name__ == "__main__":

sys.exit(main())