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clobber_unittest.py
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clobber_unittest.py
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#!/usr/bin/env python3
# Copyright 2023 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import pathlib
import shutil
import sys
import tempfile
import textwrap
import unittest
from unittest import mock
import clobber
class TestExtractBuildCommand(unittest.TestCase):
def setUp(self):
self.build_ninja_file, self.build_ninja_path = tempfile.mkstemp(text=True)
def tearDown(self):
os.close(self.build_ninja_file)
os.remove(self.build_ninja_path)
def test_normal_extraction(self):
build_ninja_file_contents = textwrap.dedent("""
ninja_required_version = 1.7.2
rule gn
command = ../../buildtools/gn --root=../.. -q --regeneration gen .
pool = console
description = Regenerating ninja files
build build.ninja.stamp: gn
generator = 1
depfile = build.ninja.d
build build.ninja: phony build.ninja.stamp
generator = 1
pool build_toolchain_action_pool
depth = 72
pool build_toolchain_link_pool
depth = 23
subninja toolchain.ninja
subninja clang_newlib_x64/toolchain.ninja
subninja glibc_x64/toolchain.ninja
subninja irt_x64/toolchain.ninja
subninja nacl_bootstrap_x64/toolchain.ninja
subninja newlib_pnacl/toolchain.ninja
build blink_python_tests: phony obj/blink_python_tests.stamp
build blink_tests: phony obj/blink_tests.stamp
default all
""") # Based off of a standard linux build dir.
with open(self.build_ninja_path, 'w') as f:
f.write(build_ninja_file_contents)
expected_build_ninja_file_contents = textwrap.dedent("""
ninja_required_version = 1.7.2
rule gn
command = ../../buildtools/gn --root=../.. -q --regeneration gen .
pool = console
description = Regenerating ninja files
build build.ninja.stamp: gn
generator = 1
depfile = build.ninja.d
build build.ninja: phony build.ninja.stamp
generator = 1
""")
self.assertEqual(clobber.extract_gn_build_commands(self.build_ninja_path),
expected_build_ninja_file_contents)
def test_unexpected_format(self):
# No "build build.ninja:" line should make it return an empty string.
build_ninja_file_contents = textwrap.dedent("""
ninja_required_version = 1.7.2
rule gn
command = ../../buildtools/gn --root=../.. -q --regeneration gen .
pool = console
description = Regenerating ninja files
subninja toolchain.ninja
build blink_python_tests: phony obj/blink_python_tests.stamp
build blink_tests: phony obj/blink_tests.stamp
""")
with open(self.build_ninja_path, 'w') as f:
f.write(build_ninja_file_contents)
self.assertEqual(clobber.extract_gn_build_commands(self.build_ninja_path),
'')
class TestDelete(unittest.TestCase):
def setUp(self):
self.build_dir = tempfile.mkdtemp()
pathlib.Path(os.path.join(self.build_dir, 'build.ninja')).touch()
pathlib.Path(os.path.join(self.build_dir, 'build.ninja.d')).touch()
def tearDown(self):
shutil.rmtree(self.build_dir)
def test_delete_build_dir_full(self):
# Create a dummy file in the build dir and ensure it gets removed.
dummy_file = os.path.join(self.build_dir, 'dummy')
pathlib.Path(dummy_file).touch()
clobber.delete_build_dir(self.build_dir)
self.assertFalse(os.path.exists(dummy_file))
def test_delete_build_dir_fail(self):
# Make delete_dir() throw to ensure it's handled gracefully.
with mock.patch('clobber._clean_dir', side_effect=OSError):
with self.assertRaises(OSError):
clobber.delete_build_dir(self.build_dir)
@unittest.skipIf(sys.platform == 'win32', 'Symlinks are not allowed on Windows by default')
def test_delete_build_dir_link(self):
with tempfile.TemporaryDirectory() as tmpdir:
# create a symlink.
build_dir = os.path.join(tmpdir, 'link')
os.symlink(self.build_dir, build_dir)
# create a dummy file.
dummy_file = os.path.join(build_dir, 'dummy')
pathlib.Path(dummy_file).touch()
clobber.delete_build_dir(build_dir)
self.assertFalse(os.path.exists(dummy_file))
if __name__ == '__main__':
unittest.main()