# # Copyright (C) 2017 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. # import filecmp import os.path import common from build_image import ( BuildImageError, CheckHeadroom, GetFilesystemCharacteristics, SetUpInDirAndFsConfig) from test_utils import ReleaseToolsTestCase class BuildImageTest(ReleaseToolsTestCase): # Available: 1000 blocks. EXT4FS_OUTPUT = ( "Created filesystem with 2777/129024 inodes and 515099/516099 blocks") def test_CheckHeadroom_SizeUnderLimit(self): # Required headroom: 1000 blocks. prop_dict = { 'fs_type' : 'ext4', 'partition_headroom' : '4096000', 'mount_point' : 'system', } CheckHeadroom(self.EXT4FS_OUTPUT, prop_dict) def test_CheckHeadroom_InsufficientHeadroom(self): # Required headroom: 1001 blocks. prop_dict = { 'fs_type' : 'ext4', 'partition_headroom' : '4100096', 'mount_point' : 'system', } self.assertRaises( BuildImageError, CheckHeadroom, self.EXT4FS_OUTPUT, prop_dict) def test_CheckHeadroom_WrongFsType(self): prop_dict = { 'fs_type' : 'f2fs', 'partition_headroom' : '4100096', 'mount_point' : 'system', } self.assertRaises( AssertionError, CheckHeadroom, self.EXT4FS_OUTPUT, prop_dict) def test_CheckHeadroom_MissingProperties(self): prop_dict = { 'fs_type' : 'ext4', 'partition_headroom' : '4100096', } self.assertRaises( AssertionError, CheckHeadroom, self.EXT4FS_OUTPUT, prop_dict) prop_dict = { 'fs_type' : 'ext4', 'mount_point' : 'system', } self.assertRaises( AssertionError, CheckHeadroom, self.EXT4FS_OUTPUT, prop_dict) def test_CheckHeadroom_WithMke2fsOutput(self): """Tests the result parsing from actual call to mke2fs.""" input_dir = common.MakeTempDir() output_image = common.MakeTempFile(suffix='.img') command = ['mkuserimg_mke2fs', input_dir, output_image, 'ext4', '/system', '409600', '-j', '0'] proc = common.Run(command) ext4fs_output, _ = proc.communicate() self.assertEqual(0, proc.returncode) prop_dict = { 'fs_type' : 'ext4', 'partition_headroom' : '40960', 'mount_point' : 'system', } CheckHeadroom(ext4fs_output, prop_dict) prop_dict = { 'fs_type' : 'ext4', 'partition_headroom' : '413696', 'mount_point' : 'system', } self.assertRaises(BuildImageError, CheckHeadroom, ext4fs_output, prop_dict) def test_SetUpInDirAndFsConfig_SystemRootImageTrue_NonSystem(self): prop_dict = { 'fs_config': 'fs-config', 'mount_point': 'vendor', 'system_root_image': 'true', } in_dir, fs_config = SetUpInDirAndFsConfig('/path/to/in_dir', prop_dict) self.assertEqual('/path/to/in_dir', in_dir) self.assertEqual('fs-config', fs_config) self.assertEqual('vendor', prop_dict['mount_point']) @staticmethod def _gen_fs_config(partition): fs_config = common.MakeTempFile(suffix='.txt') with open(fs_config, 'w') as fs_config_fp: fs_config_fp.write('fs-config-{}\n'.format(partition)) return fs_config def test_SetUpInDirAndFsConfig(self): root_dir = common.MakeTempDir() with open(os.path.join(root_dir, 'init'), 'w') as init_fp: init_fp.write('init') origin_in = common.MakeTempDir() with open(os.path.join(origin_in, 'file'), 'w') as in_fp: in_fp.write('system-file') os.symlink('../etc', os.path.join(origin_in, 'symlink')) fs_config_system = self._gen_fs_config('system') prop_dict = { 'fs_config': fs_config_system, 'mount_point': 'system', 'root_dir': root_dir, } in_dir, fs_config = SetUpInDirAndFsConfig(origin_in, prop_dict) self.assertTrue(filecmp.cmp( os.path.join(in_dir, 'init'), os.path.join(root_dir, 'init'))) self.assertTrue(filecmp.cmp( os.path.join(in_dir, 'system', 'file'), os.path.join(origin_in, 'file'))) self.assertTrue(os.path.islink(os.path.join(in_dir, 'system', 'symlink'))) self.assertTrue(filecmp.cmp(fs_config_system, fs_config)) self.assertEqual('/', prop_dict['mount_point']) def test_SetUpInDirAndFsConfig_WithRootFsConfig(self): root_dir = common.MakeTempDir() with open(os.path.join(root_dir, 'init'), 'w') as init_fp: init_fp.write('init') origin_in = common.MakeTempDir() with open(os.path.join(origin_in, 'file'), 'w') as in_fp: in_fp.write('system-file') os.symlink('../etc', os.path.join(origin_in, 'symlink')) fs_config_system = self._gen_fs_config('system') fs_config_root = self._gen_fs_config('root') prop_dict = { 'fs_config': fs_config_system, 'mount_point': 'system', 'root_dir': root_dir, 'root_fs_config': fs_config_root, } in_dir, fs_config = SetUpInDirAndFsConfig(origin_in, prop_dict) self.assertTrue(filecmp.cmp( os.path.join(in_dir, 'init'), os.path.join(root_dir, 'init'))) self.assertTrue(filecmp.cmp( os.path.join(in_dir, 'system', 'file'), os.path.join(origin_in, 'file'))) self.assertTrue(os.path.islink(os.path.join(in_dir, 'system', 'symlink'))) with open(fs_config) as fs_config_fp: fs_config_data = fs_config_fp.readlines() self.assertIn('fs-config-system\n', fs_config_data) self.assertIn('fs-config-root\n', fs_config_data) self.assertEqual('/', prop_dict['mount_point']) def test_GetFilesystemCharacteristics(self): input_dir = common.MakeTempDir() output_image = common.MakeTempFile(suffix='.img') command = ['mkuserimg_mke2fs', input_dir, output_image, 'ext4', '/system', '409600', '-j', '0'] proc = common.Run(command) ext4fs_output, _ = proc.communicate() self.assertEqual(0, proc.returncode) output_file = common.MakeTempFile(suffix='.img') cmd = ["img2simg", output_image, output_file] p = common.Run(cmd) p.communicate() self.assertEqual(0, p.returncode) fs_dict = GetFilesystemCharacteristics(output_file) self.assertEqual(int(fs_dict['Block size']), 4096) self.assertGreaterEqual(int(fs_dict['Free blocks']), 0) # expect ~88 self.assertGreater(int(fs_dict['Inode count']), 0) # expect ~64 self.assertGreaterEqual(int(fs_dict['Free inodes']), 0) # expect ~53 self.assertGreater(int(fs_dict['Inode count']), int(fs_dict['Free inodes']))