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#
# Copyright (C) 2018 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 os
import os.path
import unittest
import zipfile
import common
import test_utils
from add_img_to_target_files import (
AddCareMapTxtForAbOta, AddPackRadioImages, AddRadioImagesForAbOta,
GetCareMap)
from rangelib import RangeSet
OPTIONS = common.OPTIONS
class AddImagesToTargetFilesTest(unittest.TestCase):
def setUp(self):
OPTIONS.input_tmp = common.MakeTempDir()
def tearDown(self):
common.Cleanup()
@staticmethod
def _create_images(images, prefix):
"""Creates images under OPTIONS.input_tmp/prefix."""
path = os.path.join(OPTIONS.input_tmp, prefix)
if not os.path.exists(path):
os.mkdir(path)
for image in images:
image_path = os.path.join(path, image + '.img')
with open(image_path, 'wb') as image_fp:
image_fp.write(image.encode())
images_path = os.path.join(OPTIONS.input_tmp, 'IMAGES')
if not os.path.exists(images_path):
os.mkdir(images_path)
return images, images_path
def test_AddRadioImagesForAbOta_imageExists(self):
"""Tests the case with existing images under IMAGES/."""
images, images_path = self._create_images(['aboot', 'xbl'], 'IMAGES')
AddRadioImagesForAbOta(None, images)
for image in images:
self.assertTrue(
os.path.exists(os.path.join(images_path, image + '.img')))
def test_AddRadioImagesForAbOta_copyFromRadio(self):
"""Tests the case that copies images from RADIO/."""
images, images_path = self._create_images(['aboot', 'xbl'], 'RADIO')
AddRadioImagesForAbOta(None, images)
for image in images:
self.assertTrue(
os.path.exists(os.path.join(images_path, image + '.img')))
def test_AddRadioImagesForAbOta_copyFromRadio_zipOutput(self):
images, _ = self._create_images(['aboot', 'xbl'], 'RADIO')
# Set up the output zip.
output_file = common.MakeTempFile(suffix='.zip')
with zipfile.ZipFile(output_file, 'w') as output_zip:
AddRadioImagesForAbOta(output_zip, images)
with zipfile.ZipFile(output_file, 'r') as verify_zip:
for image in images:
self.assertIn('IMAGES/' + image + '.img', verify_zip.namelist())
def test_AddRadioImagesForAbOta_copyFromVendorImages(self):
"""Tests the case that copies images from VENDOR_IMAGES/."""
vendor_images_path = os.path.join(OPTIONS.input_tmp, 'VENDOR_IMAGES')
os.mkdir(vendor_images_path)
partitions = ['aboot', 'xbl']
for index, partition in enumerate(partitions):
subdir = os.path.join(vendor_images_path, 'subdir-{}'.format(index))
os.mkdir(subdir)
partition_image_path = os.path.join(subdir, partition + '.img')
with open(partition_image_path, 'wb') as partition_fp:
partition_fp.write(partition.encode())
# Set up the output dir.
images_path = os.path.join(OPTIONS.input_tmp, 'IMAGES')
os.mkdir(images_path)
AddRadioImagesForAbOta(None, partitions)
for partition in partitions:
self.assertTrue(
os.path.exists(os.path.join(images_path, partition + '.img')))
def test_AddRadioImagesForAbOta_missingImages(self):
images, _ = self._create_images(['aboot', 'xbl'], 'RADIO')
self.assertRaises(AssertionError, AddRadioImagesForAbOta, None,
images + ['baz'])
def test_AddRadioImagesForAbOta_missingImages_zipOutput(self):
images, _ = self._create_images(['aboot', 'xbl'], 'RADIO')
# Set up the output zip.
output_file = common.MakeTempFile(suffix='.zip')
with zipfile.ZipFile(output_file, 'w') as output_zip:
self.assertRaises(AssertionError, AddRadioImagesForAbOta, output_zip,
images + ['baz'])
def test_AddPackRadioImages(self):
images, images_path = self._create_images(['foo', 'bar'], 'RADIO')
AddPackRadioImages(None, images)
for image in images:
self.assertTrue(
os.path.exists(os.path.join(images_path, image + '.img')))
def test_AddPackRadioImages_with_suffix(self):
images, images_path = self._create_images(['foo', 'bar'], 'RADIO')
images_with_suffix = [image + '.img' for image in images]
AddPackRadioImages(None, images_with_suffix)
for image in images:
self.assertTrue(
os.path.exists(os.path.join(images_path, image + '.img')))
def test_AddPackRadioImages_zipOutput(self):
images, _ = self._create_images(['foo', 'bar'], 'RADIO')
# Set up the output zip.
output_file = common.MakeTempFile(suffix='.zip')
with zipfile.ZipFile(output_file, 'w') as output_zip:
AddPackRadioImages(output_zip, images)
with zipfile.ZipFile(output_file, 'r') as verify_zip:
for image in images:
self.assertIn('IMAGES/' + image + '.img', verify_zip.namelist())
def test_AddPackRadioImages_imageExists(self):
images, images_path = self._create_images(['foo', 'bar'], 'RADIO')
# Additionally create images under IMAGES/ so that they should be skipped.
images, images_path = self._create_images(['foo', 'bar'], 'IMAGES')
AddPackRadioImages(None, images)
for image in images:
self.assertTrue(
os.path.exists(os.path.join(images_path, image + '.img')))
def test_AddPackRadioImages_missingImages(self):
images, _ = self._create_images(['foo', 'bar'], 'RADIO')
AddPackRadioImages(None, images)
self.assertRaises(AssertionError, AddPackRadioImages, None,
images + ['baz'])
@staticmethod
def _test_AddCareMapTxtForAbOta():
"""Helper function to set up the test for test_AddCareMapTxtForAbOta()."""
OPTIONS.info_dict = {
'system_verity_block_device' : '/dev/block/system',
'vendor_verity_block_device' : '/dev/block/vendor',
}
# Prepare the META/ folder.
meta_path = os.path.join(OPTIONS.input_tmp, 'META')
if not os.path.exists(meta_path):
os.mkdir(meta_path)
system_image = test_utils.construct_sparse_image([
(0xCAC1, 6),
(0xCAC3, 4),
(0xCAC1, 6)])
vendor_image = test_utils.construct_sparse_image([
(0xCAC2, 10)])
image_paths = {
'system' : system_image,
'vendor' : vendor_image,
}
return image_paths
def test_AddCareMapTxtForAbOta(self):
image_paths = self._test_AddCareMapTxtForAbOta()
AddCareMapTxtForAbOta(None, ['system', 'vendor'], image_paths)
care_map_file = os.path.join(OPTIONS.input_tmp, 'META', 'care_map.txt')
with open(care_map_file, 'r') as verify_fp:
care_map = verify_fp.read()
lines = care_map.split('\n')
self.assertEqual(4, len(lines))
self.assertEqual('system', lines[0])
self.assertEqual(RangeSet("0-5 10-15").to_string_raw(), lines[1])
self.assertEqual('vendor', lines[2])
self.assertEqual(RangeSet("0-9").to_string_raw(), lines[3])
def test_AddCareMapTxtForAbOta_withNonCareMapPartitions(self):
"""Partitions without care_map should be ignored."""
image_paths = self._test_AddCareMapTxtForAbOta()
AddCareMapTxtForAbOta(
None, ['boot', 'system', 'vendor', 'vbmeta'], image_paths)
care_map_file = os.path.join(OPTIONS.input_tmp, 'META', 'care_map.txt')
with open(care_map_file, 'r') as verify_fp:
care_map = verify_fp.read()
lines = care_map.split('\n')
self.assertEqual(4, len(lines))
self.assertEqual('system', lines[0])
self.assertEqual(RangeSet("0-5 10-15").to_string_raw(), lines[1])
self.assertEqual('vendor', lines[2])
self.assertEqual(RangeSet("0-9").to_string_raw(), lines[3])
def test_AddCareMapTxtForAbOta_withAvb(self):
"""Tests the case for device using AVB."""
image_paths = self._test_AddCareMapTxtForAbOta()
OPTIONS.info_dict = {
'avb_system_hashtree_enable' : 'true',
'avb_vendor_hashtree_enable' : 'true',
}
AddCareMapTxtForAbOta(None, ['system', 'vendor'], image_paths)
care_map_file = os.path.join(OPTIONS.input_tmp, 'META', 'care_map.txt')
with open(care_map_file, 'r') as verify_fp:
care_map = verify_fp.read()
lines = care_map.split('\n')
self.assertEqual(4, len(lines))
self.assertEqual('system', lines[0])
self.assertEqual(RangeSet("0-5 10-15").to_string_raw(), lines[1])
self.assertEqual('vendor', lines[2])
self.assertEqual(RangeSet("0-9").to_string_raw(), lines[3])
def test_AddCareMapTxtForAbOta_verityNotEnabled(self):
"""No care_map.txt should be generated if verity not enabled."""
image_paths = self._test_AddCareMapTxtForAbOta()
OPTIONS.info_dict = {}
AddCareMapTxtForAbOta(None, ['system', 'vendor'], image_paths)
care_map_file = os.path.join(OPTIONS.input_tmp, 'META', 'care_map.txt')
self.assertFalse(os.path.exists(care_map_file))
def test_AddCareMapTxtForAbOta_missingImageFile(self):
"""Missing image file should be considered fatal."""
image_paths = self._test_AddCareMapTxtForAbOta()
image_paths['vendor'] = ''
self.assertRaises(AssertionError, AddCareMapTxtForAbOta, None,
['system', 'vendor'], image_paths)
def test_AddCareMapTxtForAbOta_zipOutput(self):
"""Tests the case with ZIP output."""
image_paths = self._test_AddCareMapTxtForAbOta()
output_file = common.MakeTempFile(suffix='.zip')
with zipfile.ZipFile(output_file, 'w') as output_zip:
AddCareMapTxtForAbOta(output_zip, ['system', 'vendor'], image_paths)
with zipfile.ZipFile(output_file, 'r') as verify_zip:
care_map = verify_zip.read('META/care_map.txt').decode('ascii')
lines = care_map.split('\n')
self.assertEqual(4, len(lines))
self.assertEqual('system', lines[0])
self.assertEqual(RangeSet("0-5 10-15").to_string_raw(), lines[1])
self.assertEqual('vendor', lines[2])
self.assertEqual(RangeSet("0-9").to_string_raw(), lines[3])
def test_AddCareMapTxtForAbOta_zipOutput_careMapEntryExists(self):
"""Tests the case with ZIP output which already has care_map entry."""
image_paths = self._test_AddCareMapTxtForAbOta()
output_file = common.MakeTempFile(suffix='.zip')
with zipfile.ZipFile(output_file, 'w') as output_zip:
# Create an existing META/care_map.txt entry.
common.ZipWriteStr(output_zip, 'META/care_map.txt', 'dummy care_map.txt')
# Request to add META/care_map.txt again.
AddCareMapTxtForAbOta(output_zip, ['system', 'vendor'], image_paths)
# The one under OPTIONS.input_tmp must have been replaced.
care_map_file = os.path.join(OPTIONS.input_tmp, 'META', 'care_map.txt')
with open(care_map_file, 'r') as verify_fp:
care_map = verify_fp.read()
lines = care_map.split('\n')
self.assertEqual(4, len(lines))
self.assertEqual('system', lines[0])
self.assertEqual(RangeSet("0-5 10-15").to_string_raw(), lines[1])
self.assertEqual('vendor', lines[2])
self.assertEqual(RangeSet("0-9").to_string_raw(), lines[3])
# The existing entry should be scheduled to be replaced.
self.assertIn('META/care_map.txt', OPTIONS.replace_updated_files_list)
def test_GetCareMap(self):
sparse_image = test_utils.construct_sparse_image([
(0xCAC1, 6),
(0xCAC3, 4),
(0xCAC1, 6)])
OPTIONS.info_dict = {
'system_adjusted_partition_size' : 12,
}
name, care_map = GetCareMap('system', sparse_image)
self.assertEqual('system', name)
self.assertEqual(RangeSet("0-5 10-12").to_string_raw(), care_map)
def test_GetCareMap_invalidPartition(self):
self.assertRaises(AssertionError, GetCareMap, 'oem', None)
def test_GetCareMap_invalidAdjustedPartitionSize(self):
sparse_image = test_utils.construct_sparse_image([
(0xCAC1, 6),
(0xCAC3, 4),
(0xCAC1, 6)])
OPTIONS.info_dict = {
'system_adjusted_partition_size' : -12,
}
self.assertRaises(AssertionError, GetCareMap, 'system', sparse_image)