Merge "releasetools: Add unittest for common.GetSparseImage()."
am: 35ee189898
Change-Id: Id9c88438e7753996b699edf8faf6cb50734d810c
This commit is contained in:
Tao Bao
android-build-merger
commit
625b5b7a09
2 changed files with 211 additions and 0 deletions
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@ -13,6 +13,7 @@
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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import os
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import tempfile
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import time
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@ -23,6 +24,7 @@ from hashlib import sha1
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import common
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import test_utils
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import validate_target_files
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from rangelib import RangeSet
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KiB = 1024
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@ -489,6 +491,147 @@ class CommonApkUtilsTest(unittest.TestCase):
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self.assertRaises(AssertionError, common.ExtractPublicKey, wrong_input)
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class CommonUtilsTest(unittest.TestCase):
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def tearDown(self):
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common.Cleanup()
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def test_GetSparseImage_emptyBlockMapFile(self):
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target_files = common.MakeTempFile(prefix='target_files-', suffix='.zip')
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with zipfile.ZipFile(target_files, 'w') as target_files_zip:
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target_files_zip.write(
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test_utils.construct_sparse_image([
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(0xCAC1, 6),
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(0xCAC3, 3),
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(0xCAC1, 4)]),
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arcname='IMAGES/system.img')
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target_files_zip.writestr('IMAGES/system.map', '')
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target_files_zip.writestr('SYSTEM/file1', os.urandom(4096 * 8))
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target_files_zip.writestr('SYSTEM/file2', os.urandom(4096 * 3))
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tempdir, input_zip = common.UnzipTemp(target_files)
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sparse_image = common.GetSparseImage('system', tempdir, input_zip, False)
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input_zip.close()
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self.assertDictEqual(
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{
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'__COPY': RangeSet("0"),
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'__NONZERO-0': RangeSet("1-5 9-12"),
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},
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sparse_image.file_map)
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def test_GetSparseImage_invalidImageName(self):
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self.assertRaises(
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AssertionError, common.GetSparseImage, 'system2', None, None, False)
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self.assertRaises(
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AssertionError, common.GetSparseImage, 'unknown', None, None, False)
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def test_GetSparseImage_missingBlockMapFile(self):
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target_files = common.MakeTempFile(prefix='target_files-', suffix='.zip')
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with zipfile.ZipFile(target_files, 'w') as target_files_zip:
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target_files_zip.write(
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test_utils.construct_sparse_image([
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(0xCAC1, 6),
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(0xCAC3, 3),
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(0xCAC1, 4)]),
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arcname='IMAGES/system.img')
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target_files_zip.writestr('SYSTEM/file1', os.urandom(4096 * 8))
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target_files_zip.writestr('SYSTEM/file2', os.urandom(4096 * 3))
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tempdir, input_zip = common.UnzipTemp(target_files)
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self.assertRaises(
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AssertionError, common.GetSparseImage, 'system', tempdir, input_zip,
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False)
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input_zip.close()
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def test_GetSparseImage_sharedBlocks_notAllowed(self):
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"""Tests the case of having overlapping blocks but disallowed."""
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target_files = common.MakeTempFile(prefix='target_files-', suffix='.zip')
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with zipfile.ZipFile(target_files, 'w') as target_files_zip:
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target_files_zip.write(
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test_utils.construct_sparse_image([(0xCAC2, 16)]),
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arcname='IMAGES/system.img')
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# Block 10 is shared between two files.
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target_files_zip.writestr(
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'IMAGES/system.map',
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'\n'.join([
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'/system/file1 1-5 9-10',
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'/system/file2 10-12']))
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target_files_zip.writestr('SYSTEM/file1', os.urandom(4096 * 7))
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target_files_zip.writestr('SYSTEM/file2', os.urandom(4096 * 3))
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tempdir, input_zip = common.UnzipTemp(target_files)
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self.assertRaises(
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AssertionError, common.GetSparseImage, 'system', tempdir, input_zip,
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False)
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input_zip.close()
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def test_GetSparseImage_sharedBlocks_allowed(self):
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"""Tests the case for target using BOARD_EXT4_SHARE_DUP_BLOCKS := true."""
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target_files = common.MakeTempFile(prefix='target_files-', suffix='.zip')
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with zipfile.ZipFile(target_files, 'w') as target_files_zip:
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# Construct an image with a care_map of "0-5 9-12".
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target_files_zip.write(
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test_utils.construct_sparse_image([(0xCAC2, 16)]),
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arcname='IMAGES/system.img')
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# Block 10 is shared between two files.
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target_files_zip.writestr(
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'IMAGES/system.map',
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'\n'.join([
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'/system/file1 1-5 9-10',
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'/system/file2 10-12']))
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target_files_zip.writestr('SYSTEM/file1', os.urandom(4096 * 7))
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target_files_zip.writestr('SYSTEM/file2', os.urandom(4096 * 3))
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tempdir, input_zip = common.UnzipTemp(target_files)
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sparse_image = common.GetSparseImage('system', tempdir, input_zip, True)
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input_zip.close()
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self.assertDictEqual(
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{
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'__COPY': RangeSet("0"),
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'__NONZERO-0': RangeSet("6-8 13-15"),
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'/system/file1': RangeSet("1-5 9-10"),
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'/system/file2': RangeSet("11-12"),
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},
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sparse_image.file_map)
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# '/system/file2' should be marked with 'uses_shared_blocks', but not with
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# 'incomplete'.
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self.assertTrue(
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sparse_image.file_map['/system/file2'].extra['uses_shared_blocks'])
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self.assertNotIn(
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'incomplete', sparse_image.file_map['/system/file2'].extra)
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# All other entries should look normal without any tags.
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self.assertFalse(sparse_image.file_map['__COPY'].extra)
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self.assertFalse(sparse_image.file_map['__NONZERO-0'].extra)
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self.assertFalse(sparse_image.file_map['/system/file1'].extra)
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def test_GetSparseImage_incompleteRanges(self):
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"""Tests the case of ext4 images with holes."""
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target_files = common.MakeTempFile(prefix='target_files-', suffix='.zip')
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with zipfile.ZipFile(target_files, 'w') as target_files_zip:
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target_files_zip.write(
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test_utils.construct_sparse_image([(0xCAC2, 16)]),
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arcname='IMAGES/system.img')
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target_files_zip.writestr(
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'IMAGES/system.map',
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'\n'.join([
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'/system/file1 1-5 9-10',
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'/system/file2 11-12']))
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target_files_zip.writestr('SYSTEM/file1', os.urandom(4096 * 7))
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# '/system/file2' has less blocks listed (2) than actual (3).
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target_files_zip.writestr('SYSTEM/file2', os.urandom(4096 * 3))
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tempdir, input_zip = common.UnzipTemp(target_files)
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sparse_image = common.GetSparseImage('system', tempdir, input_zip, False)
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input_zip.close()
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self.assertFalse(sparse_image.file_map['/system/file1'].extra)
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self.assertTrue(sparse_image.file_map['/system/file2'].extra['incomplete'])
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class InstallRecoveryScriptFormatTest(unittest.TestCase):
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"""Checks the format of install-recovery.sh.
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@ -18,7 +18,11 @@
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Utils for running unittests.
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"""
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import os
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import os.path
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import struct
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import common
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def get_testdata_dir():
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@ -26,3 +30,67 @@ def get_testdata_dir():
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# The script dir is the one we want, which could be different from pwd.
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current_dir = os.path.dirname(os.path.realpath(__file__))
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return os.path.join(current_dir, 'testdata')
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def construct_sparse_image(chunks):
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"""Returns a sparse image file constructed from the given chunks.
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From system/core/libsparse/sparse_format.h.
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typedef struct sparse_header {
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__le32 magic; // 0xed26ff3a
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__le16 major_version; // (0x1) - reject images with higher major versions
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__le16 minor_version; // (0x0) - allow images with higer minor versions
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__le16 file_hdr_sz; // 28 bytes for first revision of the file format
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__le16 chunk_hdr_sz; // 12 bytes for first revision of the file format
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__le32 blk_sz; // block size in bytes, must be a multiple of 4 (4096)
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__le32 total_blks; // total blocks in the non-sparse output image
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__le32 total_chunks; // total chunks in the sparse input image
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__le32 image_checksum; // CRC32 checksum of the original data, counting
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// "don't care" as 0. Standard 802.3 polynomial,
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// use a Public Domain table implementation
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} sparse_header_t;
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typedef struct chunk_header {
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__le16 chunk_type; // 0xCAC1 -> raw; 0xCAC2 -> fill;
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// 0xCAC3 -> don't care
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__le16 reserved1;
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__le32 chunk_sz; // in blocks in output image
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__le32 total_sz; // in bytes of chunk input file including chunk header
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// and data
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} chunk_header_t;
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Args:
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chunks: A list of chunks to be written. Each entry should be a tuple of
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(chunk_type, block_number).
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Returns:
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Filename of the created sparse image.
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"""
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SPARSE_HEADER_MAGIC = 0xED26FF3A
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SPARSE_HEADER_FORMAT = "<I4H4I"
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CHUNK_HEADER_FORMAT = "<2H2I"
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sparse_image = common.MakeTempFile(prefix='sparse-', suffix='.img')
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with open(sparse_image, 'wb') as fp:
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fp.write(struct.pack(
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SPARSE_HEADER_FORMAT, SPARSE_HEADER_MAGIC, 1, 0, 28, 12, 4096,
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sum(chunk[1] for chunk in chunks),
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len(chunks), 0))
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for chunk in chunks:
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data_size = 0
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if chunk[0] == 0xCAC1:
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data_size = 4096 * chunk[1]
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elif chunk[0] == 0xCAC2:
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data_size = 4
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elif chunk[0] == 0xCAC3:
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pass
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else:
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assert False, "Unsupported chunk type: {}".format(chunk[0])
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fp.write(struct.pack(
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CHUNK_HEADER_FORMAT, chunk[0], 0, chunk[1], data_size + 12))
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if data_size != 0:
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fp.write(os.urandom(data_size))
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return sparse_image
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