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# SPDX-License-Identifier: GPL-2.0+
# Copyright 2020 Google LLC
#
"""Tests for the src_scan module
This includes unit tests for scanning of the source code
"""
import os
import shutil
import tempfile
import unittest
from unittest import mock
from dtoc import src_scan
from patman import tools
# This is a test so is allowed to access private things in the module it is
# testing
# pylint: disable=W0212
class TestSrcScan(unittest.TestCase):
"""Tests for src_scan"""
@classmethod
def setUpClass(cls):
tools.PrepareOutputDir(None)
@classmethod
def tearDownClass(cls):
tools.FinaliseOutputDir()
@classmethod
def test_scan_drivers(cls):
"""Test running dtoc with additional drivers to scan"""
scan = src_scan.Scanner(
None, True, [None, '', 'tools/dtoc/dtoc_test_scan_drivers.cxx'])
scan.scan_drivers()
@classmethod
def test_unicode_error(cls):
"""Test running dtoc with an invalid unicode file
To be able to perform this test without adding a weird text file which
would produce issues when using checkpatch.pl or patman, generate the
file at runtime and then process it.
"""
driver_fn = '/tmp/' + next(tempfile._get_candidate_names())
with open(driver_fn, 'wb+') as fout:
fout.write(b'\x81')
src_scan.Scanner(None, True, [driver_fn])
def test_driver(self):
"""Test the Driver class"""
drv1 = src_scan.Driver('fred')
drv2 = src_scan.Driver('mary')
drv3 = src_scan.Driver('fred')
self.assertEqual("Driver(name='fred')", str(drv1))
self.assertEqual(drv1, drv3)
self.assertNotEqual(drv1, drv2)
self.assertNotEqual(drv2, drv3)
def test_scan_dirs(self):
"""Test scanning of source directories"""
def add_file(fname):
pathname = os.path.join(indir, fname)
dirname = os.path.dirname(pathname)
os.makedirs(dirname, exist_ok=True)
tools.WriteFile(pathname, '', binary=False)
fname_list.append(pathname)
try:
indir = tempfile.mkdtemp(prefix='dtoc.')
fname_list = []
add_file('fname.c')
add_file('dir/fname2.c')
# Mock out scan_driver and check that it is called with the
# expected files
with mock.patch.object(src_scan.Scanner, "scan_driver") as mocked:
scan = src_scan.Scanner(indir, True, None)
scan.scan_drivers()
self.assertEqual(2, len(mocked.mock_calls))
self.assertEqual(mock.call(fname_list[0]),
mocked.mock_calls[0])
self.assertEqual(mock.call(fname_list[1]),
mocked.mock_calls[1])
finally:
shutil.rmtree(indir)
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