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#!/usr/bin/env python
##===--- run_iwyu_tests.py - include-what-you-use test framework driver ---===##
#
# The LLVM Compiler Infrastructure
#
# This file is distributed under the University of Illinois Open Source
# License. See LICENSE.TXT for details.
#
##===----------------------------------------------------------------------===##
"""A test harness for IWYU testing."""
__author__ = 'dsturtevant@google.com (Dean Sturtevant)'
import argparse
import glob
import os
import re
import sys
import unittest
import logging
logging.basicConfig(level=logging.INFO)
import posixpath
from fnmatch import fnmatch
import iwyu_test_util
def PosixPath(path):
"""Normalize Windows path separators to POSIX path separators."""
return path.replace('\\', '/')
def Partition(l, delimiter):
try:
delim_index = l.index(delimiter)
except ValueError:
return l, []
return l[:delim_index], l[delim_index+1:]
def TestIwyuOnRelevantFiles(filename):
logging.info('Testing iwyu on %s', filename)
# Split full/path/to/foo.cc into full/path/to/foo and .cc.
(all_but_extension, extension) = os.path.splitext(filename)
(dirname, basename) = os.path.split(all_but_extension)
# Generate diagnostics on all foo-* files (well, not other
# foo-*.cc files, which is not kosher but is legal), in addition
# to foo.h (if present) and foo.cc.
all_files = (glob.glob('%s-*' % all_but_extension) +
glob.glob('%s/*/%s-*' % (dirname, basename)) +
glob.glob('%s.h' % all_but_extension) +
glob.glob('%s/*/%s.h' % (dirname, basename)))
files_to_check = [f for f in all_files if not f.endswith(extension)]
files_to_check.append(filename)
# IWYU emits summaries with canonicalized filepaths, where all the
# directory separators are set to '/'. In order for the testsuite to
# correctly match up file summaries, we must canonicalize the filepaths
# in the same way here.
files_to_check = [PosixPath(f) for f in files_to_check]
iwyu_test_util.TestIwyuOnRelativeFile(filename, files_to_check, verbose=True)
def GenerateTests(rootdir, pattern):
def _AddTestFunctions(cls):
filenames = []
test_files = {}
for (dirpath, _, files) in os.walk(rootdir):
dirpath = PosixPath(dirpath) # Normalize path separators.
filenames.extend(posixpath.join(dirpath, f) for f in files
if fnmatch(f, pattern))
if not filenames:
print('No tests found in %s!' % os.path.abspath(rootdir))
return
for filename in filenames:
all_but_extension = os.path.splitext(filename)[0]
basename = os.path.basename(all_but_extension)
test_name = re.sub('[^0-9a-zA-Z_]', '_', basename) # python-clean
test_name = 'test_%s' % test_name
while hasattr(cls, test_name): # already have a class with that name
test_name += '2' # just append a suffix :-)
setattr(cls, test_name, lambda x, f=filename: TestIwyuOnRelevantFiles(f))
test_files[test_name] = filename
setattr(cls, 'test_files', test_files)
return cls
return _AddTestFunctions
def EnumerateLoadedTests():
for suite in unittest.defaultTestLoader.loadTestsFromModule(sys.modules[__name__]):
for test in suite:
yield (test.__class__, test._testMethodName)
def PrintLoadedTests():
for (cls, test) in EnumerateLoadedTests():
print('%s.%s' % (cls.__name__, test))
def PrintLoadedTestsAndFiles():
for (cls, test) in EnumerateLoadedTests():
print('%s.%s:%s' % (cls.__name__, test, cls.test_files[test]))
if __name__ == '__main__':
unittest_args, additional_args = Partition(sys.argv, '--')
if additional_args:
iwyu_test_util.SetIwyuPath(additional_args[0])
parser = argparse.ArgumentParser(add_help=False, usage=argparse.SUPPRESS)
group = parser.add_mutually_exclusive_group()
group.add_argument('--list', dest='list_tests', action='store_true')
group.add_argument('--list-test-files', action='store_true')
group.add_argument('--run-test-file')
(runner_args, _) = parser.parse_known_args(unittest_args)
if runner_args.run_test_file:
exit(TestIwyuOnRelevantFiles(runner_args.run_test_file))
@GenerateTests(rootdir='tests/c', pattern='*.c')
class c(unittest.TestCase): pass
@GenerateTests(rootdir='tests/cxx', pattern='*.cc')
class cxx(unittest.TestCase): pass
if runner_args.list_tests:
exit(PrintLoadedTests())
elif runner_args.list_test_files:
exit(PrintLoadedTestsAndFiles())
unittest.main(argv=unittest_args)
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