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# Copyright (C) 2022 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Unit tests for difftool.py."""
import os
import pathlib
import unittest
import clangcompile
import difftool
def get_path(name):
return os.path.join(os.getenv("TEST_TMPDIR"), name)
def create_file(name, content):
path = get_path(name)
with open(path, "w") as f:
f.write(content)
return pathlib.Path(path)
def _substring_in_list(s, slist):
for elem in slist:
if s in elem:
return True
return False
class DifftoolTest(unittest.TestCase):
def assertNotInErrors(self, expected, errorlist):
if _substring_in_list(expected, errorlist):
self.fail("{!r} found in errors: {!r}".format(expected, errorlist))
def assertInErrors(self, expected, errorlist):
if not _substring_in_list(expected, errorlist):
self.fail("{!r} not found in errors: {!r}".format(expected, errorlist))
def test_file_differences_not_exist(self):
obj_file = create_file("foo.o", "object contents")
diffs = difftool.file_differences(pathlib.Path("doesntexist.o"),
obj_file)
self.assertEqual(["doesntexist.o does not exist"], diffs)
def test_file_differences_different_types(self):
obj_file = create_file("foo.o", "object contents")
obj_file_two = create_file("foo2.o", "object contents two")
txt_file = create_file("foo3.txt", "other")
so_file = create_file("bar.so", "shared lib contents")
diffs = difftool.file_differences(obj_file, so_file)
self.assertInErrors("file types differ", diffs)
diffs = difftool.file_differences(obj_file, txt_file)
self.assertInErrors("file types differ", diffs)
diffs = difftool.file_differences(so_file, obj_file)
self.assertInErrors("file types differ", diffs)
diffs = difftool.file_differences(obj_file, obj_file_two)
self.assertNotInErrors("file types differ", diffs)
def test_object_contents_differ(self):
obj_file = create_file("foo.o", "object contents\none\n")
obj_file_two = create_file("foo2.o", "object contents\ntwo\n")
diffs = difftool.file_differences(obj_file, obj_file_two)
self.assertNotInErrors("object_contents", diffs)
self.assertInErrors("one", diffs)
self.assertInErrors("two", diffs)
def test_soong_clang_compile_info(self):
fake_cmd = ("PWD=/proc/self/cwd prebuilts/clang -c -Wall -Wno-unused " +
"foo.cpp -Iframeworks/av/include -Dsomedefine " +
"-misc_flag misc_arg " +
"-o foo.o # comment")
info = difftool.rich_command_info(fake_cmd)
self.assertIsInstance(info, clangcompile.ClangCompileInfo)
self.assertEqual([("I", "frameworks/av/include")], info.i_includes)
self.assertEqual(["-Dsomedefine"], info.defines)
self.assertEqual(["-Wall", "-Wno-unused"], info.warnings)
self.assertEqual(["-c", ("misc_flag", "misc_arg")], info.misc_flags)
self.assertEqual(["foo.cpp", ("o", "foo.o")], info.file_flags)
def test_bazel_clang_compile_info(self):
fake_cmd = ("cd out/bazel/execroot && rm -f foo.o && " +
"prebuilts/clang -MD -MF bazel-out/foo.d " +
"-iquote . -iquote bazel-out/foo/bin " +
"-I frameworks/av/include " +
"-I bazel-out/frameworks/av/include/bin " +
" -Dsomedefine " +
"-misc_flag misc_arg " +
"-Werror=int-conversion " +
"-Wno-reserved-id-macro "
"-o foo.o # comment")
info = difftool.rich_command_info(fake_cmd)
self.assertIsInstance(info, clangcompile.ClangCompileInfo)
self.assertEqual([("iquote", ".")], info.iquote_includes)
self.assertEqual([("I", "frameworks/av/include")], info.i_includes)
self.assertEqual(["-Dsomedefine"], info.defines)
self.assertEqual(["-Werror=int-conversion", "-Wno-reserved-id-macro"],
info.warnings)
self.assertEqual(["-MD", ("misc_flag", "misc_arg")], info.misc_flags)
self.assertEqual([("MF", "bazel-out/foo.d"), ("o", "foo.o")], info.file_flags)
if __name__ == "__main__":
unittest.main()
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