From patchwork Thu Aug 23 07:25:20 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AKASHI Takahiro X-Patchwork-Id: 961193 X-Patchwork-Delegate: trini@ti.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.denx.de (client-ip=81.169.180.215; helo=lists.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.b="XB41tk0n"; dkim-atps=neutral Received: from lists.denx.de (dione.denx.de [81.169.180.215]) by ozlabs.org (Postfix) with ESMTP id 41wwvL1gbnz9s3C for ; Thu, 23 Aug 2018 17:26:21 +1000 (AEST) Received: by lists.denx.de (Postfix, from userid 105) id 2E533C21EFF; Thu, 23 Aug 2018 07:26:17 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lists.denx.de X-Spam-Level: X-Spam-Status: No, score=-0.0 required=5.0 tests=RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, T_DKIM_INVALID autolearn=unavailable autolearn_force=no version=3.4.0 Received: from lists.denx.de (localhost [IPv6:::1]) by lists.denx.de (Postfix) with ESMTP id 07C5BC21F24; Thu, 23 Aug 2018 07:26:09 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id 5E3D8C21E7D; Thu, 23 Aug 2018 07:25:55 +0000 (UTC) Received: from mail-pl0-f68.google.com (mail-pl0-f68.google.com [209.85.160.68]) by lists.denx.de (Postfix) with ESMTPS id BDEBAC21F24 for ; Thu, 23 Aug 2018 07:25:50 +0000 (UTC) Received: by mail-pl0-f68.google.com with SMTP id g23-v6so2005871plq.9 for ; Thu, 23 Aug 2018 00:25:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=3Q8uaM5SHY4Li388W41AE287uVsKAL3xqhASL0BqACU=; b=XB41tk0n+qMMwgFndEyuDWH0/5RDLD2sqPSiCIlTBe8wBLIvwx27jUgGzszBzCgwHB 6PnnI5UPkVgrhc5XeLR3ew7B3by2RR0A0IF96T3iTDGVFzOmucFiB0My69Y6qhgK3Nav C+AfBiQU9xv11JZ1K5ZbtV171R8pVI3rv86uc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=3Q8uaM5SHY4Li388W41AE287uVsKAL3xqhASL0BqACU=; b=eaVsji3LtkYEhapG3IghWP5DYMUIGUvqEYu61hOIe1d0yEARxZJZoNIfxXOTa/nEEm Goqlnt1qupDpR+5Xdh75PUl+y1erXOcnzpo/p2pZjjlYFVv/khzhEgVz56rZQGL6i7nE ia2NdN3mNECGgz5x4HyrzSGjo7BOlaIoyeDtnSRxqgYSApmlLw2zj1tLfWfKWvKj64Yh Qh3712sKONbJP4xOg7At5Y6jO70YAzNk9d83qFCWGq5c+Uk6Oh6PDSAHgfj51R7iplzu fTrsgi8jjwnGLhZ0JVN7eKB8u1+tbrXHDKRROgcXSqbLfXYojro3WPdxa0+PG+ov5Cb7 HxXg== X-Gm-Message-State: AOUpUlGI8x6VN1sfsZawB5AXJkGvjAYj0mYR7bjK25csGy4sn4xgqUSr NPJ/t6MKtHzO+1UMtIUtoQlu9g== X-Google-Smtp-Source: AA+uWPzorxQKrnqXeFdP7Ay7KSztlu8U525TaQ5hT4Put7KPxT8BUrrbN0kox5gYgG0U5aWV1FkbLw== X-Received: by 2002:a17:902:5981:: with SMTP id p1-v6mr23955070pli.333.1535009148998; Thu, 23 Aug 2018 00:25:48 -0700 (PDT) Received: from linaro.org ([121.95.100.191]) by smtp.googlemail.com with ESMTPSA id n5-v6sm1574914pgg.3.2018.08.23.00.25.48 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 23 Aug 2018 00:25:48 -0700 (PDT) From: AKASHI Takahiro To: trini@konsulko.com Date: Thu, 23 Aug 2018 16:25:20 +0900 Message-Id: <20180823072522.15735-2-takahiro.akashi@linaro.org> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180823072522.15735-1-takahiro.akashi@linaro.org> References: <20180823072522.15735-1-takahiro.akashi@linaro.org> Cc: u-boot@lists.denx.de, xypron.glpk@gmx.de, agraf@suse.de Subject: [U-Boot] [RFC 1/3] test/py: convert fs-test.sh to pytest X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.18 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" In this commit, the same set of test cases as in test/fs/fs-test.sh is provided using pytest framework. Actually, fs-test.sh provides three variants:"sb" (sb command), "nonfs" (fatxx and etc.) and "fs" (hostfs), and this patch currently supports only "nonfs" variant; So it is not a replacement of fs-test.sh for now. Simple usage: $ py.test test/py/tests/test_fs [] You may also specify filesystem types to be tested: $ py.test test/py/tests/test_fs --fs-type fat32 [] Signed-off-by: AKASHI Takahiro --- test/py/tests/test_fs/conftest.py | 175 +++++++++++++++++++ test/py/tests/test_fs/fstest_defs.py | 10 ++ test/py/tests/test_fs/test_basic.py | 246 +++++++++++++++++++++++++++ 3 files changed, 431 insertions(+) create mode 100644 test/py/tests/test_fs/conftest.py create mode 100644 test/py/tests/test_fs/fstest_defs.py create mode 100644 test/py/tests/test_fs/test_basic.py diff --git a/test/py/tests/test_fs/conftest.py b/test/py/tests/test_fs/conftest.py new file mode 100644 index 000000000000..fefeb4c9663f --- /dev/null +++ b/test/py/tests/test_fs/conftest.py @@ -0,0 +1,175 @@ +# SPDX-License-Identifier: GPL-2.0+ +# Copyright (c) 2018, Linaro Limited +# Author: Takahiro Akashi + +import pytest +import re +from subprocess import call, check_call, check_output, CalledProcessError +from fstest_defs import * + +supported_fs_basic = ['fat16', 'fat32', 'ext4'] + +# +# Filesystem test specific setup +# +def pytest_addoption(parser): + parser.addoption('--fs-type', action='append', default=None, + help='Targeting Filesystem Types') + +def pytest_configure(config): + global supported_fs_basic + + 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) + +def pytest_generate_tests(metafunc): + if 'fs_obj_basic' in metafunc.fixturenames: + metafunc.parametrize('fs_obj_basic', supported_fs_basic, + indirect=True, scope='module') + +# +# Helper functions +# +def fstype_to_ubname(fs_type): + if re.match('fat', fs_type): + return 'fat' + else: + return fs_type + +def check_ubconfig(config, fs_type): + 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()) + +def mk_fs(config, fs_type, size, id): + fs_img = '%s.%s.img' % (id, fs_type) + fs_img = config.persistent_data_dir + '/' + fs_img + + if fs_type == 'fat16': + mkfs_opt = '-F 16' + elif fs_type == 'fat32': + mkfs_opt = '-F 32' + else: + mkfs_opt = '' + + if re.match('fat', fs_type): + fs_lnxtype = 'vfat' + else: + fs_lnxtype = fs_type + + count = (size + 1023) / 1024 + + try: + check_call('rm -f %s' % fs_img, shell=True) + check_call('dd if=/dev/zero of=%s bs=1K count=%d' + % (fs_img, count), shell=True) + check_call('mkfs.%s %s %s' + % (fs_lnxtype, mkfs_opt, fs_img), shell=True) + return fs_img + except CalledProcessError: + call('rm -f %s' % fs_img, shell=True) + raise + +# +# Fixture for basic fs test +# derived from test/fs/fs-test.sh +# +# NOTE: yield_fixture was deprecated since pytest-3.0 +@pytest.yield_fixture() +def fs_obj_basic(request, u_boot_config): + 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 + big_file = mount_dir + '/' + BIG_FILE + try: + + # 3GiB volume + fs_img = mk_fs(u_boot_config, fs_type, 0xc0000000, '3GB') + + # Mount the image so we can populate it. + check_call('mkdir -p %s' % mount_dir, shell=True) + check_call('sudo mount -o loop,rw %s %s' + % (fs_img, mount_dir), shell=True) + + # Create a subdirectory. + check_call('sudo mkdir %s/SUBDIR' % mount_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('sudo dd if=/dev/urandom of=%s bs=1M count=1' + % big_file, shell=True) + check_call('sudo dd if=/dev/urandom of=%s bs=1M count=2 seek=2047' + % big_file, shell=True) + check_call('sudo 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('sudo 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('sudo rm -f "%s.w"' % MB1, shell=True) + # check_call('sudo 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) + 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) + 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) + 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) + 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) + 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) + md5val.append(out.split()[0]) + + check_call('sudo umount %s' % mount_dir, shell=True) + except CalledProcessError: + pytest.skip('Setup failed for filesystem: ' + fs_type) + else: + yield [fs_ubtype, fs_img, md5val] + finally: + call('sudo umount %s' % mount_dir, shell=True) + call('rmdir -rf %s' % mount_dir, shell=True) +# if fs_img: +# call('rm -f %s' % fs_img, shell=True) diff --git a/test/py/tests/test_fs/fstest_defs.py b/test/py/tests/test_fs/fstest_defs.py new file mode 100644 index 000000000000..f26dd06cacf2 --- /dev/null +++ b/test/py/tests/test_fs/fstest_defs.py @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0+ + +# $SMALL_FILE is the name of the 1MB file in the file system image +SMALL_FILE='1MB.file' + +# $BIG_FILE is the name of the 2.5GB file in the file system image +BIG_FILE='2.5GB.file' + +ADDR=0x01000008 +LENGTH=0x00100000 diff --git a/test/py/tests/test_fs/test_basic.py b/test/py/tests/test_fs/test_basic.py new file mode 100644 index 000000000000..5258d98d42a9 --- /dev/null +++ b/test/py/tests/test_fs/test_basic.py @@ -0,0 +1,246 @@ +# SPDX-License-Identifier: GPL-2.0+ +# Copyright (c) 2018, Linaro Limited +# Author: Takahiro Akashi +# +# U-Boot File System:Basic Test + +""" +This test verifies basic read/write operation on file system. +""" + +import pytest +import re +from fstest_defs import * + +@pytest.mark.boardspec('sandbox') +class TestFsBasic(object): + def test_fs1(self, u_boot_console, fs_obj_basic): + fs_type,fs_img,md5val = fs_obj_basic + with u_boot_console.log.section('Test Case 1 - ls'): + # Test Case 1 - ls + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % fs_img, + '%sls host 0:0' % fs_type]) + assert(re.search('2621440000 *%s' % BIG_FILE, ''.join(output))) + assert(re.search('1048576 *%s' % SMALL_FILE, ''.join(output))) + + # In addition, test with a nonexistent directory to see if we crash. + output2 = u_boot_console.run_command( + '%sls host 0:0 invalid_d' % fs_type) + if fs_type == 'ext4': + assert('Can not find directory' in output2) + else: + assert('' == output2) + + def test_fs2(self, u_boot_console, fs_obj_basic): + fs_type,fs_img,md5val = fs_obj_basic + with u_boot_console.log.section('Test Case 2 - size (small)'): + # 1MB is 0x0010 0000 + # Test Case 2a - size of small file + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % fs_img, + '%ssize host 0:0 /%s' % (fs_type, SMALL_FILE), + 'printenv filesize', + 'setenv filesize']) + assert('filesize=100000' in ''.join(output)) + + # Test Case 2b - size of small file via a path using '..' + output = u_boot_console.run_command_list([ + '%ssize host 0:0 /SUBDIR/../%s' % (fs_type, SMALL_FILE), + 'printenv filesize', + 'setenv filesize']) + assert('filesize=100000' in ''.join(output)) + + def test_fs3(self, u_boot_console, fs_obj_basic): + fs_type,fs_img,md5val = fs_obj_basic + with u_boot_console.log.section('Test Case 3 - size (big)'): + # 2.5GB (1024*1024*2500) is 0x9C40 0000 + # Test Case 3 - size of big file + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % fs_img, + '%ssize host 0:0 /%s' % (fs_type, BIG_FILE), + 'printenv filesize', + 'setenv filesize']) + assert('filesize=9c400000' in ''.join(output)) + + def test_fs4(self, u_boot_console, fs_obj_basic): + fs_type,fs_img,md5val = fs_obj_basic + with u_boot_console.log.section('Test Case 4 - load (small)'): + # Test Case 4a - Read full 1MB of small file + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % fs_img, + '%sload host 0:0 %x /%s' % (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)) + + def test_fs5(self, u_boot_console, fs_obj_basic): + fs_type,fs_img,md5val = fs_obj_basic + with u_boot_console.log.section('Test Case 5 - load (big)'): + # Test Case 5a - First 1MB of big file + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % fs_img, + '%sload host 0:0 %x /%s %x 0x0' % (fs_type, ADDR, BIG_FILE, LENGTH), + 'printenv filesize']) + assert('filesize=100000' in ''.join(output)) + + # Test Case 5b - First 1MB of big file + output = u_boot_console.run_command_list([ + 'md5sum %x $filesize' % ADDR, + 'setenv filesize']) + assert(md5val[1] in ''.join(output)) + + def test_fs6(self, u_boot_console, fs_obj_basic): + fs_type,fs_img,md5val = fs_obj_basic + with u_boot_console.log.section('Test Case 6 - load (big from last 1MB)'): + # fails for ext as no offset support + # Test Case 6a - Last 1MB of big file + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % fs_img, + '%sload host 0:0 %x /%s %x 0x9c300000' + % (fs_type, ADDR, BIG_FILE, LENGTH), + 'printenv filesize']) + assert('filesize=100000' in ''.join(output)) + + # Test Case 6b - Last 1MB of big file + output = u_boot_console.run_command_list([ + 'md5sum %x $filesize' % ADDR, + 'setenv filesize']) + assert(md5val[2] in ''.join(output)) + + def test_fs7(self, u_boot_console, fs_obj_basic): + fs_type,fs_img,md5val = fs_obj_basic + with u_boot_console.log.section('Test Case 7 - load (big from last 1MB in 2GB)'): + # fails for ext as no offset support + # Test Case 7a - One from the last 1MB chunk of 2GB + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % fs_img, + '%sload host 0:0 %x /%s %x 0x7ff00000' + % (fs_type, ADDR, BIG_FILE, LENGTH), + 'printenv filesize']) + assert('filesize=100000' in ''.join(output)) + + # Test Case 7b - One from the last 1MB chunk of 2GB + output = u_boot_console.run_command_list([ + 'md5sum %x $filesize' % ADDR, + 'setenv filesize']) + assert(md5val[3] in ''.join(output)) + + def test_fs8(self, u_boot_console, fs_obj_basic): + fs_type,fs_img,md5val = fs_obj_basic + with u_boot_console.log.section('Test Case 8 - load (big from first 1MB in 2GB)'): + # fails for ext as no offset support + # Test Case 8a - One from the start 1MB chunk from 2GB + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % fs_img, + '%sload host 0:0 %x /%s %x 0x80000000' + % (fs_type, ADDR, BIG_FILE, LENGTH), + 'printenv filesize']) + assert('filesize=100000' in ''.join(output)) + + # Test Case 8b - One from the start 1MB chunk from 2GB + output = u_boot_console.run_command_list([ + 'md5sum %x $filesize' % ADDR, + 'setenv filesize']) + assert(md5val[4] in ''.join(output)) + + def test_fs9(self, u_boot_console, fs_obj_basic): + fs_type,fs_img,md5val = fs_obj_basic + with u_boot_console.log.section('Test Case 9 - load (crossing 2GB boundary)'): + # fails for ext as no offset support + # Test Case 9a - One 1MB chunk crossing the 2GB boundary + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % fs_img, + '%sload host 0:0 %x /%s %x 0x7ff80000' + % (fs_type, ADDR, BIG_FILE, LENGTH), + 'printenv filesize']) + assert('filesize=100000' in ''.join(output)) + + # Test Case 9b - One 1MB chunk crossing the 2GB boundary + output = u_boot_console.run_command_list([ + 'md5sum %x $filesize' % ADDR, + 'setenv filesize']) + assert(md5val[5] in ''.join(output)) + + def test_fs10(self, u_boot_console, fs_obj_basic): + fs_type,fs_img,md5val = fs_obj_basic + with u_boot_console.log.section('Test Case 10 - load (over file end)'): + # Generic failure case + # Test Case 10 - 2MB chunk from the last 1MB of big file + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % fs_img, + '%sload host 0:0 %x /%s 0x00200000 0x9c300000' + % (fs_type, ADDR, BIG_FILE), + 'printenv filesize', + 'md5sum %x $filesize' % ADDR, + 'setenv filesize']) + assert('filesize=100000' in ''.join(output)) + + def test_fs11(self, u_boot_console, fs_obj_basic): + fs_type,fs_img,md5val = fs_obj_basic + with u_boot_console.log.section('Test Case 11 - write (small)'): + # Read 1MB from small file + # Write it back to test the writes + # Test Case 11a - Check that the write succeeded + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % fs_img, + '%sload host 0:0 %x /%s' % (fs_type, ADDR, SMALL_FILE), + '%swrite host 0:0 %x /%s.w $filesize' + % (fs_type, ADDR, SMALL_FILE)]) + assert('1048576 bytes written' in ''.join(output)) + + # Test Case 11b - Check md5 of written to is same + # as the one read from + output = u_boot_console.run_command_list([ + '%sload host 0:0 %x /%s.w' % (fs_type, ADDR, SMALL_FILE), + 'md5sum %x $filesize' % ADDR, + 'setenv filesize']) + assert(md5val[0] in ''.join(output)) + + def test_fs12(self, u_boot_console, fs_obj_basic): + fs_type,fs_img,md5val = fs_obj_basic + with u_boot_console.log.section('Test Case 12 - write (".")'): + # Next test case checks writing a file whose dirent + # is the first in the block, which is always true for "." + # The write should fail, but the lookup should work + # Test Case 12 - Check directory traversal + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % fs_img, + '%swrite host 0:0 %x /. 0x10' % (fs_type, ADDR)]) + assert('Unable to write' in ''.join(output)) + + def test_fs13(self, u_boot_console, fs_obj_basic): + fs_type,fs_img,md5val = fs_obj_basic + with u_boot_console.log.section('Test Case 13 - write (small w/ "./")'): + # Read 1MB from small file + # Write it via "same directory", i.e. "." dirent + # Test Case 13a - Check directory traversal + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % fs_img, + '%sload host 0:0 %x /%s' % (fs_type, ADDR, SMALL_FILE), + '%swrite host 0:0 %x /./%s2 $filesize' + % (fs_type, ADDR, SMALL_FILE)]) + assert('1048576 bytes written' in ''.join(output)) + + # Test Case 13b - Check md5 of written to is same + # as the one read from + output = u_boot_console.run_command_list([ + 'mw.b %x 00 100' % ADDR, + '%sload host 0:0 %x /./%s2' % (fs_type, ADDR, SMALL_FILE), + 'md5sum %x $filesize' % ADDR, + 'setenv filesize']) + assert(md5val[0] in ''.join(output)) + + # Test Case 13c - Check md5 of written to is same + # as the one read from + output = u_boot_console.run_command_list([ + 'mw.b %x 00 100' % ADDR, + '%sload host 0:0 %x /%s2' % (fs_type, ADDR, SMALL_FILE), + 'md5sum %x $filesize' % ADDR, + 'setenv filesize']) + assert(md5val[0] in ''.join(output))