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+# SPDX-License-Identifier: GPL-2.0+
+# Copyright (c) 2018, Linaro Limited
+# Author: Takahiro Akashi <takahiro.akashi@linaro.org>
+
+import os
+import os.path
+import pytest
+import re
+from subprocess import call, check_call, check_output, CalledProcessError
+from fstest_defs import *
+# pylint: disable=E0611
+from tests import fs_helper
+
+supported_fs_basic = ['fat16', 'fat32', 'ext4']
+supported_fs_ext = ['fat12', 'fat16', 'fat32']
+supported_fs_fat = ['fat12', 'fat16']
+supported_fs_mkdir = ['fat12', 'fat16', 'fat32']
+supported_fs_unlink = ['fat12', 'fat16', 'fat32']
+supported_fs_symlink = ['ext4']
+supported_fs_rename = ['fat12', 'fat16', 'fat32']
+
+#
+# Filesystem test specific setup
+#
+def pytest_addoption(parser):
+ """Enable --fs-type option.
+
+ See pytest_configure() about how it works.
+
+ Args:
+ parser: Pytest command-line parser.
+
+ Returns:
+ Nothing.
+ """
+ parser.addoption('--fs-type', action='append', default=None,
+ help='Targeting Filesystem Types')
+
+def pytest_configure(config):
+ """Restrict a file system(s) to be tested.
+
+ A file system explicitly named with --fs-type option is selected
+ if it belongs to a default supported_fs_xxx list.
+ Multiple options can be specified.
+
+ Args:
+ config: Pytest configuration.
+
+ Returns:
+ Nothing.
+ """
+ global supported_fs_basic
+ global supported_fs_ext
+ global supported_fs_fat
+ global supported_fs_mkdir
+ global supported_fs_unlink
+ global supported_fs_symlink
+ global supported_fs_rename
+
+ def intersect(listA, listB):
+ return [x for x in listA if x in listB]
+
+ supported_fs = config.getoption('fs_type')
+ if supported_fs:
+ print('*** FS TYPE modified: %s' % supported_fs)
+ supported_fs_basic = intersect(supported_fs, supported_fs_basic)
+ supported_fs_ext = intersect(supported_fs, supported_fs_ext)
+ supported_fs_fat = intersect(supported_fs, supported_fs_fat)
+ supported_fs_mkdir = intersect(supported_fs, supported_fs_mkdir)
+ supported_fs_unlink = intersect(supported_fs, supported_fs_unlink)
+ supported_fs_symlink = intersect(supported_fs, supported_fs_symlink)
+ supported_fs_rename = intersect(supported_fs, supported_fs_rename)
+
+def pytest_generate_tests(metafunc):
+ """Parametrize fixtures, fs_obj_xxx
+
+ Each fixture will be parametrized with a corresponding support_fs_xxx
+ list.
+
+ Args:
+ metafunc: Pytest test function.
+
+ Returns:
+ Nothing.
+ """
+ if 'fs_obj_basic' in metafunc.fixturenames:
+ metafunc.parametrize('fs_obj_basic', supported_fs_basic,
+ indirect=True, scope='module')
+ if 'fs_obj_ext' in metafunc.fixturenames:
+ metafunc.parametrize('fs_obj_ext', supported_fs_ext,
+ indirect=True, scope='module')
+ if 'fs_obj_fat' in metafunc.fixturenames:
+ metafunc.parametrize('fs_obj_fat', supported_fs_fat,
+ indirect=True, scope='module')
+ if 'fs_obj_mkdir' in metafunc.fixturenames:
+ metafunc.parametrize('fs_obj_mkdir', supported_fs_mkdir,
+ indirect=True, scope='module')
+ if 'fs_obj_unlink' in metafunc.fixturenames:
+ metafunc.parametrize('fs_obj_unlink', supported_fs_unlink,
+ indirect=True, scope='module')
+ if 'fs_obj_symlink' in metafunc.fixturenames:
+ metafunc.parametrize('fs_obj_symlink', supported_fs_symlink,
+ indirect=True, scope='module')
+ if 'fs_obj_rename' in metafunc.fixturenames:
+ metafunc.parametrize('fs_obj_rename', supported_fs_rename,
+ indirect=True, scope='module')
+
+#
+# Helper functions
+#
+def fstype_to_ubname(fs_type):
+ """Convert a file system type to an U-Boot specific string
+
+ A generated string can be used as part of file system related commands
+ or a config name in u-boot. Currently fat16 and fat32 are handled
+ specifically.
+
+ Args:
+ fs_type: File system type.
+
+ Return:
+ A corresponding string for file system type.
+ """
+ if re.match('fat', fs_type):
+ return 'fat'
+ else:
+ return fs_type
+
+def check_ubconfig(config, fs_type):
+ """Check whether a file system is enabled in u-boot configuration.
+
+ This function is assumed to be called in a fixture function so that
+ the whole test cases will be skipped if a given file system is not
+ enabled.
+
+ Args:
+ fs_type: File system type.
+
+ Return:
+ Nothing.
+ """
+ if not config.buildconfig.get('config_cmd_%s' % fs_type, None):
+ pytest.skip('.config feature "CMD_%s" not enabled' % fs_type.upper())
+ if not config.buildconfig.get('config_%s_write' % fs_type, None):
+ pytest.skip('.config feature "%s_WRITE" not enabled'
+ % fs_type.upper())
+
+# from test/py/conftest.py
+def tool_is_in_path(tool):
+ """Check whether a given command is available on host.
+
+ Args:
+ tool: Command name.
+
+ Return:
+ True if available, False if not.
+ """
+ for path in os.environ['PATH'].split(os.pathsep):
+ fn = os.path.join(path, tool)
+ if os.path.isfile(fn) and os.access(fn, os.X_OK):
+ return True
+ return False
+
+#
+# Fixture for basic fs test
+# derived from test/fs/fs-test.sh
+#
+@pytest.fixture()
+def fs_obj_basic(request, u_boot_config):
+ """Set up a file system to be used in basic fs test.
+
+ Args:
+ request: Pytest request object.
+ u_boot_config: U-Boot configuration.
+
+ Return:
+ A fixture for basic fs test, i.e. a triplet of file system type,
+ volume file name and a list of MD5 hashes.
+ """
+ fs_type = request.param
+ fs_img = ''
+
+ fs_ubtype = fstype_to_ubname(fs_type)
+ check_ubconfig(u_boot_config, fs_ubtype)
+
+ scratch_dir = u_boot_config.persistent_data_dir + '/scratch'
+
+ small_file = scratch_dir + '/' + SMALL_FILE
+ big_file = scratch_dir + '/' + BIG_FILE
+
+ try:
+ check_call('mkdir -p %s' % scratch_dir, shell=True)
+ except CalledProcessError as err:
+ pytest.skip('Preparing mount folder failed for filesystem: ' + fs_type + '. {}'.format(err))
+ call('rm -f %s' % fs_img, shell=True)
+ return
+
+ try:
+ # Create a subdirectory.
+ check_call('mkdir %s/SUBDIR' % scratch_dir, shell=True)
+
+ # Create big file in this image.
+ # Note that we work only on the start 1MB, couple MBs in the 2GB range
+ # and the last 1 MB of the huge 2.5GB file.
+ # So, just put random values only in those areas.
+ check_call('dd if=/dev/urandom of=%s bs=1M count=1'
+ % big_file, shell=True)
+ check_call('dd if=/dev/urandom of=%s bs=1M count=2 seek=2047'
+ % big_file, shell=True)
+ check_call('dd if=/dev/urandom of=%s bs=1M count=1 seek=2499'
+ % big_file, shell=True)
+
+ # Create a small file in this image.
+ check_call('dd if=/dev/urandom of=%s bs=1M count=1'
+ % small_file, shell=True)
+
+ # Delete the small file copies which possibly are written as part of a
+ # previous test.
+ # check_call('rm -f "%s.w"' % MB1, shell=True)
+ # check_call('rm -f "%s.w2"' % MB1, shell=True)
+
+ # Generate the md5sums of reads that we will test against small file
+ out = check_output(
+ 'dd if=%s bs=1M skip=0 count=1 2> /dev/null | md5sum'
+ % small_file, shell=True).decode()
+ md5val = [ out.split()[0] ]
+
+ # Generate the md5sums of reads that we will test against big file
+ # One from beginning of file.
+ out = check_output(
+ 'dd if=%s bs=1M skip=0 count=1 2> /dev/null | md5sum'
+ % big_file, shell=True).decode()
+ md5val.append(out.split()[0])
+
+ # One from end of file.
+ out = check_output(
+ 'dd if=%s bs=1M skip=2499 count=1 2> /dev/null | md5sum'
+ % big_file, shell=True).decode()
+ md5val.append(out.split()[0])
+
+ # One from the last 1MB chunk of 2GB
+ out = check_output(
+ 'dd if=%s bs=1M skip=2047 count=1 2> /dev/null | md5sum'
+ % big_file, shell=True).decode()
+ md5val.append(out.split()[0])
+
+ # One from the start 1MB chunk from 2GB
+ out = check_output(
+ 'dd if=%s bs=1M skip=2048 count=1 2> /dev/null | md5sum'
+ % big_file, shell=True).decode()
+ md5val.append(out.split()[0])
+
+ # One 1MB chunk crossing the 2GB boundary
+ out = check_output(
+ 'dd if=%s bs=512K skip=4095 count=2 2> /dev/null | md5sum'
+ % big_file, shell=True).decode()
+ md5val.append(out.split()[0])
+
+ try:
+ # 3GiB volume
+ fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0xc0000000, '3GB', scratch_dir)
+ except CalledProcessError as err:
+ pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
+ return
+
+ except CalledProcessError as err:
+ pytest.skip('Setup failed for filesystem: ' + fs_type + '. {}'.format(err))
+ return
+ else:
+ yield [fs_ubtype, fs_img, md5val]
+ finally:
+ call('rm -rf %s' % scratch_dir, shell=True)
+ call('rm -f %s' % fs_img, shell=True)
+
+#
+# Fixture for extended fs test
+#
+@pytest.fixture()
+def fs_obj_ext(request, u_boot_config):
+ """Set up a file system to be used in extended fs test.
+
+ Args:
+ request: Pytest request object.
+ u_boot_config: U-Boot configuration.
+
+ Return:
+ A fixture for extended fs test, i.e. a triplet of file system type,
+ volume file name and a list of MD5 hashes.
+ """
+ fs_type = request.param
+ fs_img = ''
+
+ fs_ubtype = fstype_to_ubname(fs_type)
+ check_ubconfig(u_boot_config, fs_ubtype)
+
+ scratch_dir = u_boot_config.persistent_data_dir + '/scratch'
+
+ min_file = scratch_dir + '/' + MIN_FILE
+ tmp_file = scratch_dir + '/tmpfile'
+
+ try:
+ check_call('mkdir -p %s' % scratch_dir, shell=True)
+ except CalledProcessError as err:
+ pytest.skip('Preparing mount folder failed for filesystem: ' + fs_type + '. {}'.format(err))
+ call('rm -f %s' % fs_img, shell=True)
+ return
+
+ try:
+ # Create a test directory
+ check_call('mkdir %s/dir1' % scratch_dir, shell=True)
+
+ # Create a small file and calculate md5
+ check_call('dd if=/dev/urandom of=%s bs=1K count=20'
+ % min_file, shell=True)
+ out = check_output(
+ 'dd if=%s bs=1K 2> /dev/null | md5sum'
+ % min_file, shell=True).decode()
+ md5val = [ out.split()[0] ]
+
+ # Calculate md5sum of Test Case 4
+ check_call('dd if=%s of=%s bs=1K count=20'
+ % (min_file, tmp_file), shell=True)
+ check_call('dd if=%s of=%s bs=1K seek=5 count=20'
+ % (min_file, tmp_file), shell=True)
+ out = check_output('dd if=%s bs=1K 2> /dev/null | md5sum'
+ % tmp_file, shell=True).decode()
+ md5val.append(out.split()[0])
+
+ # Calculate md5sum of Test Case 5
+ check_call('dd if=%s of=%s bs=1K count=20'
+ % (min_file, tmp_file), shell=True)
+ check_call('dd if=%s of=%s bs=1K seek=5 count=5'
+ % (min_file, tmp_file), shell=True)
+ out = check_output('dd if=%s bs=1K 2> /dev/null | md5sum'
+ % tmp_file, shell=True).decode()
+ md5val.append(out.split()[0])
+
+ # Calculate md5sum of Test Case 7
+ check_call('dd if=%s of=%s bs=1K count=20'
+ % (min_file, tmp_file), shell=True)
+ check_call('dd if=%s of=%s bs=1K seek=20 count=20'
+ % (min_file, tmp_file), shell=True)
+ out = check_output('dd if=%s bs=1K 2> /dev/null | md5sum'
+ % tmp_file, shell=True).decode()
+ md5val.append(out.split()[0])
+
+ check_call('rm %s' % tmp_file, shell=True)
+
+ try:
+ # 128MiB volume
+ fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0x8000000, '128MB', scratch_dir)
+ except CalledProcessError as err:
+ pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
+ return
+
+ except CalledProcessError:
+ pytest.skip('Setup failed for filesystem: ' + fs_type)
+ return
+ else:
+ yield [fs_ubtype, fs_img, md5val]
+ finally:
+ call('rm -rf %s' % scratch_dir, shell=True)
+ call('rm -f %s' % fs_img, shell=True)
+
+#
+# Fixture for mkdir test
+#
+@pytest.fixture()
+def fs_obj_mkdir(request, u_boot_config):
+ """Set up a file system to be used in mkdir test.
+
+ Args:
+ request: Pytest request object.
+ u_boot_config: U-Boot configuration.
+
+ Return:
+ A fixture for mkdir test, i.e. a duplet of file system type and
+ volume file name.
+ """
+ fs_type = request.param
+ fs_img = ''
+
+ fs_ubtype = fstype_to_ubname(fs_type)
+ check_ubconfig(u_boot_config, fs_ubtype)
+
+ try:
+ # 128MiB volume
+ fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0x8000000, '128MB', None)
+ except:
+ pytest.skip('Setup failed for filesystem: ' + fs_type)
+ return
+ else:
+ yield [fs_ubtype, fs_img]
+ call('rm -f %s' % fs_img, shell=True)
+
+#
+# Fixture for unlink test
+#
+@pytest.fixture()
+def fs_obj_unlink(request, u_boot_config):
+ """Set up a file system to be used in unlink test.
+
+ Args:
+ request: Pytest request object.
+ u_boot_config: U-Boot configuration.
+
+ Return:
+ A fixture for unlink test, i.e. a duplet of file system type and
+ volume file name.
+ """
+ fs_type = request.param
+ fs_img = ''
+
+ fs_ubtype = fstype_to_ubname(fs_type)
+ check_ubconfig(u_boot_config, fs_ubtype)
+
+ scratch_dir = u_boot_config.persistent_data_dir + '/scratch'
+
+ try:
+ check_call('mkdir -p %s' % scratch_dir, shell=True)
+ except CalledProcessError as err:
+ pytest.skip('Preparing mount folder failed for filesystem: ' + fs_type + '. {}'.format(err))
+ call('rm -f %s' % fs_img, shell=True)
+ return
+
+ try:
+ # Test Case 1 & 3
+ check_call('mkdir %s/dir1' % scratch_dir, shell=True)
+ check_call('dd if=/dev/urandom of=%s/dir1/file1 bs=1K count=1'
+ % scratch_dir, shell=True)
+ check_call('dd if=/dev/urandom of=%s/dir1/file2 bs=1K count=1'
+ % scratch_dir, shell=True)
+
+ # Test Case 2
+ check_call('mkdir %s/dir2' % scratch_dir, shell=True)
+ for i in range(0, 20):
+ check_call('mkdir %s/dir2/0123456789abcdef%02x'
+ % (scratch_dir, i), shell=True)
+
+ # Test Case 4
+ check_call('mkdir %s/dir4' % scratch_dir, shell=True)
+
+ # Test Case 5, 6 & 7
+ check_call('mkdir %s/dir5' % scratch_dir, shell=True)
+ check_call('dd if=/dev/urandom of=%s/dir5/file1 bs=1K count=1'
+ % scratch_dir, shell=True)
+
+ try:
+ # 128MiB volume
+ fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0x8000000, '128MB', scratch_dir)
+ except CalledProcessError as err:
+ pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
+ return
+
+ except CalledProcessError:
+ pytest.skip('Setup failed for filesystem: ' + fs_type)
+ return
+ else:
+ yield [fs_ubtype, fs_img]
+ finally:
+ call('rm -rf %s' % scratch_dir, shell=True)
+ call('rm -f %s' % fs_img, shell=True)
+
+#
+# Fixture for symlink fs test
+#
+@pytest.fixture()
+def fs_obj_symlink(request, u_boot_config):
+ """Set up a file system to be used in symlink fs test.
+
+ Args:
+ request: Pytest request object.
+ u_boot_config: U-Boot configuration.
+
+ Return:
+ A fixture for basic fs test, i.e. a triplet of file system type,
+ volume file name and a list of MD5 hashes.
+ """
+ fs_type = request.param
+ fs_img = ''
+
+ fs_ubtype = fstype_to_ubname(fs_type)
+ check_ubconfig(u_boot_config, fs_ubtype)
+
+ scratch_dir = u_boot_config.persistent_data_dir + '/scratch'
+
+ small_file = scratch_dir + '/' + SMALL_FILE
+ medium_file = scratch_dir + '/' + MEDIUM_FILE
+
+ try:
+ check_call('mkdir -p %s' % scratch_dir, shell=True)
+ except CalledProcessError as err:
+ pytest.skip('Preparing mount folder failed for filesystem: ' + fs_type + '. {}'.format(err))
+ call('rm -f %s' % fs_img, shell=True)
+ return
+
+ try:
+ # Create a subdirectory.
+ check_call('mkdir %s/SUBDIR' % scratch_dir, shell=True)
+
+ # Create a small file in this image.
+ check_call('dd if=/dev/urandom of=%s bs=1M count=1'
+ % small_file, shell=True)
+
+ # Create a medium file in this image.
+ check_call('dd if=/dev/urandom of=%s bs=10M count=1'
+ % medium_file, shell=True)
+
+ # Generate the md5sums of reads that we will test against small file
+ out = check_output(
+ 'dd if=%s bs=1M skip=0 count=1 2> /dev/null | md5sum'
+ % small_file, shell=True).decode()
+ md5val = [out.split()[0]]
+ out = check_output(
+ 'dd if=%s bs=10M skip=0 count=1 2> /dev/null | md5sum'
+ % medium_file, shell=True).decode()
+ md5val.extend([out.split()[0]])
+
+ try:
+ # 1GiB volume
+ fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0x40000000, '1GB', scratch_dir)
+ except CalledProcessError as err:
+ pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
+ return
+
+ except CalledProcessError:
+ pytest.skip('Setup failed for filesystem: ' + fs_type)
+ return
+ else:
+ yield [fs_ubtype, fs_img, md5val]
+ finally:
+ call('rm -rf %s' % scratch_dir, shell=True)
+ call('rm -f %s' % fs_img, shell=True)
+
+#
+# Fixture for rename test
+#
+@pytest.fixture()
+def fs_obj_rename(request, u_boot_config):
+ """Set up a file system to be used in rename tests.
+
+ Args:
+ request: Pytest request object.
+ u_boot_config: U-Boot configuration.
+
+ Return:
+ A fixture for rename tests, i.e. a triplet of file system type,
+ volume file name, and dictionary of test identifier and md5val.
+ """
+ def new_rand_file(path):
+ check_call('dd if=/dev/urandom of=%s bs=1K count=1' % path, shell=True)
+
+ def file_hash(path):
+ out = check_output(
+ 'dd if=%s bs=1K skip=0 count=1 2> /dev/null | md5sum' % path,
+ shell=True
+ )
+ return out.decode().split()[0]
+
+ fs_type = request.param
+ fs_img = ''
+
+ fs_ubtype = fstype_to_ubname(fs_type)
+ check_ubconfig(u_boot_config, fs_ubtype)
+
+ mount_dir = u_boot_config.persistent_data_dir + '/scratch'
+
+ try:
+ check_call('mkdir -p %s' % mount_dir, shell=True)
+ except CalledProcessError as err:
+ pytest.skip('Preparing mount folder failed for filesystem: ' + fs_type + '. {}'.format(err))
+ call('rm -f %s' % fs_img, shell=True)
+ return
+
+ try:
+ md5val = {}
+ # Test Case 1
+ check_call('mkdir %s/test1' % mount_dir, shell=True)
+ new_rand_file('%s/test1/file1' % mount_dir)
+ md5val['test1'] = file_hash('%s/test1/file1' % mount_dir)
+
+ # Test Case 2
+ check_call('mkdir %s/test2' % mount_dir, shell=True)
+ new_rand_file('%s/test2/file1' % mount_dir)
+ new_rand_file('%s/test2/file_exist' % mount_dir)
+ md5val['test2'] = file_hash('%s/test2/file1' % mount_dir)
+
+ # Test Case 3
+ check_call('mkdir -p %s/test3/dir1' % mount_dir, shell=True)
+ new_rand_file('%s/test3/dir1/file1' % mount_dir)
+ md5val['test3'] = file_hash('%s/test3/dir1/file1' % mount_dir)
+
+ # Test Case 4
+ check_call('mkdir -p %s/test4/dir1' % mount_dir, shell=True)
+ check_call('mkdir -p %s/test4/dir2/dir1' % mount_dir, shell=True)
+ new_rand_file('%s/test4/dir1/file1' % mount_dir)
+ md5val['test4'] = file_hash('%s/test4/dir1/file1' % mount_dir)
+
+ # Test Case 5
+ check_call('mkdir -p %s/test5/dir1' % mount_dir, shell=True)
+ new_rand_file('%s/test5/file2' % mount_dir)
+ md5val['test5'] = file_hash('%s/test5/file2' % mount_dir)
+
+ # Test Case 6
+ check_call('mkdir -p %s/test6/dir2/existing' % mount_dir, shell=True)
+ new_rand_file('%s/test6/existing' % mount_dir)
+ md5val['test6'] = file_hash('%s/test6/existing' % mount_dir)
+
+ # Test Case 7
+ check_call('mkdir -p %s/test7/dir1' % mount_dir, shell=True)
+ check_call('mkdir -p %s/test7/dir2/dir1' % mount_dir, shell=True)
+ new_rand_file('%s/test7/dir2/dir1/file1' % mount_dir)
+ md5val['test7'] = file_hash('%s/test7/dir2/dir1/file1' % mount_dir)
+
+ # Test Case 8
+ check_call('mkdir -p %s/test8/dir1' % mount_dir, shell=True)
+ new_rand_file('%s/test8/dir1/file1' % mount_dir)
+ md5val['test8'] = file_hash('%s/test8/dir1/file1' % mount_dir)
+
+ # Test Case 9
+ check_call('mkdir -p %s/test9/dir1/nested/inner' % mount_dir, shell=True)
+ new_rand_file('%s/test9/dir1/nested/inner/file1' % mount_dir)
+
+ # Test Case 10
+ check_call('mkdir -p %s/test10' % mount_dir, shell=True)
+ new_rand_file('%s/test10/file1' % mount_dir)
+ md5val['test10'] = file_hash('%s/test10/file1' % mount_dir)
+
+ # Test Case 11
+ check_call('mkdir -p %s/test11/dir1' % mount_dir, shell=True)
+ new_rand_file('%s/test11/dir1/file1' % mount_dir)
+ md5val['test11'] = file_hash('%s/test11/dir1/file1' % mount_dir)
+
+ try:
+ # 128MiB volume
+ fs_img = fs_helper.mk_fs(u_boot_config, fs_type, 0x8000000, '128MB', mount_dir)
+ except CalledProcessError as err:
+ pytest.skip('Creating failed for filesystem: ' + fs_type + '. {}'.format(err))
+ return
+
+ except CalledProcessError:
+ pytest.skip('Setup failed for filesystem: ' + fs_type)
+ return
+ else:
+ yield [fs_ubtype, fs_img, md5val]
+ finally:
+ call('rm -rf %s' % mount_dir, shell=True)
+ call('rm -f %s' % fs_img, shell=True)
+
+#
+# Fixture for fat test
+#
+@pytest.fixture()
+def fs_obj_fat(request, u_boot_config):
+ """Set up a file system to be used in fat test.
+
+ Args:
+ request: Pytest request object.
+ u_boot_config: U-Boot configuration.
+
+ Return:
+ A fixture for fat test, i.e. a duplet of file system type and
+ volume file name.
+ """
+
+ # the maximum size of a FAT12 filesystem resulting in 4084 clusters
+ MAX_FAT12_SIZE = 261695 * 1024
+
+ # the minimum size of a FAT16 filesystem that can be created with
+ # mkfs.vfat resulting in 4087 clusters
+ MIN_FAT16_SIZE = 8208 * 1024
+
+ fs_type = request.param
+ fs_img = ''
+
+ fs_ubtype = fstype_to_ubname(fs_type)
+ check_ubconfig(u_boot_config, fs_ubtype)
+
+ fs_size = MAX_FAT12_SIZE if fs_type == 'fat12' else MIN_FAT16_SIZE
+
+ try:
+ # the volume size depends on the filesystem
+ fs_img = fs_helper.mk_fs(u_boot_config, fs_type, fs_size, f'{fs_size}', None, 1024)
+ except:
+ pytest.skip('Setup failed for filesystem: ' + fs_type)
+ return
+ else:
+ yield [fs_ubtype, fs_img]
+ call('rm -f %s' % fs_img, shell=True)
generated by cgit v1.2.3 (git 2.0.4) at 2025-10-31 10:55:42 +0000