test: fs: Added tests for symlinks

Test cases are:
1) basic link creation, verify it can be followed
2) chained links, verify it can be followed
3) replace exiting file a with a link, and a link with a link. verify it
   can be followed
4) create a broken link, verify it can't be followed

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Jean-Jacques Hiblot 2019-02-13 12:15:27 +01:00 committed by Tom Rini
parent aaa12157c7
commit ef79284e7a
3 changed files with 208 additions and 0 deletions

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@ -13,6 +13,7 @@ supported_fs_basic = ['fat16', 'fat32', 'ext4']
supported_fs_ext = ['fat16', 'fat32']
supported_fs_mkdir = ['fat16', 'fat32']
supported_fs_unlink = ['fat16', 'fat32']
supported_fs_symlink = ['ext4']
#
# Filesystem test specific setup
@ -48,6 +49,7 @@ def pytest_configure(config):
global supported_fs_ext
global supported_fs_mkdir
global supported_fs_unlink
global supported_fs_symlink
def intersect(listA, listB):
return [x for x in listA if x in listB]
@ -59,6 +61,7 @@ def pytest_configure(config):
supported_fs_ext = intersect(supported_fs, supported_fs_ext)
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)
def pytest_generate_tests(metafunc):
"""Parametrize fixtures, fs_obj_xxx
@ -84,6 +87,9 @@ def pytest_generate_tests(metafunc):
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')
#
# Helper functions
@ -525,3 +531,72 @@ def fs_obj_unlink(request, u_boot_config):
call('rmdir %s' % mount_dir, shell=True)
if fs_img:
call('rm -f %s' % fs_img, shell=True)
#
# Fixture for symlink fs test
#
# NOTE: yield_fixture was deprecated since pytest-3.0
@pytest.yield_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)
mount_dir = u_boot_config.persistent_data_dir + '/mnt'
small_file = mount_dir + '/' + SMALL_FILE
medium_file = mount_dir + '/' + MEDIUM_FILE
try:
# 3GiB volume
fs_img = mk_fs(u_boot_config, fs_type, 0x40000000, '1GB')
# Mount the image so we can populate it.
check_call('mkdir -p %s' % mount_dir, shell=True)
mount_fs(fs_type, fs_img, mount_dir)
# Create a subdirectory.
check_call('mkdir %s/SUBDIR' % mount_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)
md5val = [out.split()[0]]
out = check_output(
'dd if=%s bs=10M skip=0 count=1 2> /dev/null | md5sum'
% medium_file, shell=True)
md5val.extend([out.split()[0]])
umount_fs(mount_dir)
except CalledProcessError:
pytest.skip('Setup failed for filesystem: ' + fs_type)
return
else:
yield [fs_ubtype, fs_img, md5val]
finally:
umount_fs(mount_dir)
call('rmdir %s' % mount_dir, shell=True)
if fs_img:
call('rm -f %s' % fs_img, shell=True)

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@ -6,6 +6,9 @@ MIN_FILE='testfile'
# $SMALL_FILE is the name of the 1MB file in the file system image
SMALL_FILE='1MB.file'
# $MEDIUM_FILE is the name of the 10MB file in the file system image
MEDIUM_FILE='10MB.file'
# $BIG_FILE is the name of the 2.5GB file in the file system image
BIG_FILE='2.5GB.file'

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@ -0,0 +1,130 @@
# SPDX-License-Identifier: GPL-2.0+
# Copyright (c) 2019, Texas Instrument
# Author: Jean-Jacques Hiblot <jjhiblot@ti.com>
#
# U-Boot File System:symlink Test
"""
This test verifies unlink operation (deleting a file or a directory)
on file system.
"""
import pytest
import re
from fstest_defs import *
from fstest_helpers import assert_fs_integrity
@pytest.mark.boardspec('sandbox')
@pytest.mark.slow
class TestSymlink(object):
def test_symlink1(self, u_boot_console, fs_obj_symlink):
"""
Test Case 1 - create a link. and follow it when reading
"""
fs_type, fs_img, md5val = fs_obj_symlink
with u_boot_console.log.section('Test Case 1 - create link and read'):
output = u_boot_console.run_command_list([
'host bind 0 %s' % fs_img,
'setenv filesize',
'ln host 0:0 %s /%s.link ' % (SMALL_FILE, SMALL_FILE),
])
assert('' in ''.join(output))
output = u_boot_console.run_command_list([
'%sload host 0:0 %x /%s.link' % (fs_type, ADDR, SMALL_FILE),
'printenv filesize'])
assert('filesize=100000' in ''.join(output))
# Test Case 4b - Read full 1MB of small file
output = u_boot_console.run_command_list([
'md5sum %x $filesize' % ADDR,
'setenv filesize'])
assert(md5val[0] in ''.join(output))
assert_fs_integrity(fs_type, fs_img)
def test_symlink2(self, u_boot_console, fs_obj_symlink):
"""
Test Case 2 - create chained links
"""
fs_type, fs_img, md5val = fs_obj_symlink
with u_boot_console.log.section('Test Case 2 - create chained links'):
output = u_boot_console.run_command_list([
'host bind 0 %s' % fs_img,
'setenv filesize',
'ln host 0:0 %s /%s.link1 ' % (SMALL_FILE, SMALL_FILE),
'ln host 0:0 /%s.link1 /SUBDIR/%s.link2' % (
SMALL_FILE, SMALL_FILE),
'ln host 0:0 SUBDIR/%s.link2 /%s.link3' % (
SMALL_FILE, SMALL_FILE),
])
assert('' in ''.join(output))
output = u_boot_console.run_command_list([
'%sload host 0:0 %x /%s.link3' % (fs_type, ADDR, SMALL_FILE),
'printenv filesize'])
assert('filesize=100000' in ''.join(output))
# Test Case 4b - Read full 1MB of small file
output = u_boot_console.run_command_list([
'md5sum %x $filesize' % ADDR,
'setenv filesize'])
assert(md5val[0] in ''.join(output))
assert_fs_integrity(fs_type, fs_img)
def test_symlink3(self, u_boot_console, fs_obj_symlink):
"""
Test Case 3 - replace file/link with link
"""
fs_type, fs_img, md5val = fs_obj_symlink
with u_boot_console.log.section('Test Case 1 - create link and read'):
output = u_boot_console.run_command_list([
'host bind 0 %s' % fs_img,
'setenv filesize',
'ln host 0:0 %s /%s ' % (MEDIUM_FILE, SMALL_FILE),
'ln host 0:0 %s /%s.link ' % (MEDIUM_FILE, MEDIUM_FILE),
])
assert('' in ''.join(output))
output = u_boot_console.run_command_list([
'%sload host 0:0 %x /%s' % (fs_type, ADDR, SMALL_FILE),
'printenv filesize'])
assert('filesize=a00000' in ''.join(output))
output = u_boot_console.run_command_list([
'md5sum %x $filesize' % ADDR,
'setenv filesize'])
assert(md5val[1] in ''.join(output))
output = u_boot_console.run_command_list([
'ln host 0:0 %s.link /%s ' % (MEDIUM_FILE, SMALL_FILE),
'%sload host 0:0 %x /%s' % (fs_type, ADDR, SMALL_FILE),
'printenv filesize'])
assert('filesize=a00000' in ''.join(output))
output = u_boot_console.run_command_list([
'md5sum %x $filesize' % ADDR,
'setenv filesize'])
assert(md5val[1] in ''.join(output))
assert_fs_integrity(fs_type, fs_img)
def test_symlink4(self, u_boot_console, fs_obj_symlink):
"""
Test Case 4 - create a broken link
"""
fs_type, fs_img, md5val = fs_obj_symlink
with u_boot_console.log.section('Test Case 1 - create link and read'):
output = u_boot_console.run_command_list([
'setenv filesize',
'ln host 0:0 nowhere /link ',
])
assert('' in ''.join(output))
output = u_boot_console.run_command(
'%sload host 0:0 %x /link' %
(fs_type, ADDR))
with u_boot_console.disable_check('error_notification'):
output = u_boot_console.run_command('printenv filesize')
assert('"filesize" not defined' in ''.join(output))
assert_fs_integrity(fs_type, fs_img)