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import os
import sys
import unittest
sys.path.insert(0, '..')
from pycparser import parse_file, c_ast
from tests.test_util import cpp_supported, cpp_path, cpp_args
# Test successful parsing
#
class TestParsing(unittest.TestCase):
def _find_file(self, name):
""" Find a c file by name, taking into account the current dir can be
in a couple of typical places
"""
testdir = os.path.dirname(__file__)
name = os.path.join(testdir, 'c_files', name)
assert os.path.exists(name)
return name
def test_without_cpp(self):
ast = parse_file(self._find_file('example_c_file.c'))
self.assertIsInstance(ast, c_ast.FileAST)
@unittest.skipUnless(cpp_supported(), 'cpp only works on Unix')
def test_with_cpp(self):
memmgr_path = self._find_file('memmgr.c')
c_files_path = os.path.dirname(memmgr_path)
ast = parse_file(memmgr_path, use_cpp=True,
cpp_path=cpp_path(), cpp_args=cpp_args('-I%s' % c_files_path))
self.assertIsInstance(ast, c_ast.FileAST)
fake_libc = os.path.join(c_files_path, '..', '..',
'utils', 'fake_libc_include')
ast2 = parse_file(self._find_file('year.c'), use_cpp=True,
cpp_path=cpp_path(), cpp_args=cpp_args('-I%s' % fake_libc))
self.assertIsInstance(ast2, c_ast.FileAST)
@unittest.skipUnless(cpp_supported(), 'cpp only works on Unix')
def test_cpp_funkydir(self):
# This test contains Windows specific path escapes
if sys.platform != 'win32':
return
c_files_path = os.path.join('tests', 'c_files')
ast = parse_file(self._find_file('simplemain.c'), use_cpp=True,
cpp_path=cpp_path(), cpp_args=cpp_args('-I%s' % c_files_path))
self.assertIsInstance(ast, c_ast.FileAST)
@unittest.skipUnless(cpp_supported(), 'cpp only works on Unix')
def test_no_real_content_after_cpp(self):
ast = parse_file(self._find_file('empty.h'), use_cpp=True,
cpp_path=cpp_path(), cpp_args=cpp_args())
self.assertIsInstance(ast, c_ast.FileAST)
@unittest.skipUnless(cpp_supported(), 'cpp only works on Unix')
def test_c11_with_cpp(self):
c_files_path = os.path.join('tests', 'c_files')
fake_libc = os.path.join(c_files_path, '..', '..',
'utils', 'fake_libc_include')
ast = parse_file(self._find_file('c11.c'), use_cpp=True,
cpp_path=cpp_path(), cpp_args=cpp_args('-I%s' % fake_libc))
self.assertIsInstance(ast, c_ast.FileAST)
if __name__ == '__main__':
unittest.main()
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