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esp-idf/components/fatfs/test_fatfsgen/test_wl_fatfsgen.py
Adam Múdry 8e50d63fea feat(fatfs): Add an option to use 2 FATs (file allocation tables) in FATFS volumes 
Should help with redundancy and data corruption when enabled but uses more space.
2024-01-18 14:03:28 +01:00

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#!/usr/bin/env python
# SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
# SPDX-License-Identifier: Apache-2.0
import os
import shutil
import sys
import unittest
from test_utils import CFG, fill_sector, generate_test_dir_1, generate_test_dir_2
sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
import wl_fatfsgen # noqa E402 # pylint: disable=C0413
from fatfs_utils.exceptions import WLNotInitialized # noqa E402 # pylint: disable=C0413
class WLFatFSGen(unittest.TestCase):
def setUp(self) -> None:
os.makedirs('output_data')
generate_test_dir_1()
generate_test_dir_2()
def tearDown(self) -> None:
shutil.rmtree('output_data')
def test_empty_file_sn_fat12(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=2)
fatfs.plain_fatfs.create_file('TESTFILE')
fatfs.init_wl()
fatfs.wl_write_filesystem(CFG['output_file'])
with open(CFG['output_file'], 'rb') as fs_file:
file_system = fs_file.read()
self.assertEqual(file_system[0x4000:0x400c], b'TESTFILE \x20') # check entry name and type
self.assertEqual(file_system[0x3000:0x3006], b'\xf8\xff\xff\xff\x0f\x00') # check fat
def test_empty_file_sn_fat12_one_fat(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=1)
fatfs.plain_fatfs.create_file('TESTFILE')
fatfs.init_wl()
fatfs.wl_write_filesystem(CFG['output_file'])
with open(CFG['output_file'], 'rb') as fs_file:
file_system = fs_file.read()
self.assertEqual(file_system[0x3000:0x300c], b'TESTFILE \x20') # check entry name and type
self.assertEqual(file_system[0x2000:0x2006], b'\xf8\xff\xff\xff\x0f\x00') # check fat
def test_directory_sn_fat12(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=2, device_id=3750448905)
fatfs.plain_fatfs.create_directory('TESTFOLD')
fatfs.init_wl()
fatfs.wl_write_filesystem(CFG['output_file'])
with open(CFG['output_file'], 'rb') as fs_file:
file_system = fs_file.read()
# boot sector
self.assertEqual(file_system[0x1000:0x1010], b'\xeb\xfe\x90MSDOS5.0\x00\x10\x01\x01\x00')
self.assertEqual(file_system[0x1010:0x1020], b'\x02\x00\x02\xfa\x00\xf8\x01\x00?\x00\xff\x00\x00\x00\x00\x00') # two fats b'\x02...'
self.assertEqual(file_system[0x102b:0x1034], b'Espressif')
self.assertEqual(file_system[0x4000:0x400c], b'TESTFOLD \x10') # check entry name and type
self.assertEqual(file_system[0x2000:0x2006], b'\xf8\xff\xff\xff\x0f\x00') # check fat
self.assertEqual(file_system[0x8000:0x800c], b'. \x10') # reference to itself
self.assertEqual(file_system[0x8020:0x802c], b'.. \x10') # reference to parent
# check state1
self.assertEqual(file_system[0xfb000:0xfb00f], b'\x00\x00\x00\x00\xfb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xfb010:0xfb020], b'\x10\x00\x00\x00\x00\x10\x00\x00\x02\x00\x00\x00\tO\x8b\xdf')
self.assertEqual(file_system[0xfb020:0xfb02f], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xfb031:0xfb040], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd4\xa1\x94i')
# check state2
self.assertEqual(file_system[0xfd000:0xfd00f], b'\x00\x00\x00\x00\xfb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xfd010:0xfd020], b'\x10\x00\x00\x00\x00\x10\x00\x00\x02\x00\x00\x00\tO\x8b\xdf')
self.assertEqual(file_system[0xfd020:0xfd02f], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xfd031:0xfd040], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd4\xa1\x94i')
# check config
self.assertEqual(file_system[0xff001:0xff010], b'\x00\x00\x00\x00\x00\x10\x00\x00\x10\x00\x00\x00\x10\x00\x00')
self.assertEqual(file_system[0xff010:0xff01f], b'\x10\x00\x00\x00\x10\x00\x00\x00\x02\x00\x00\x00 \x00\x00')
self.assertEqual(file_system[0xff020:0xff030], b'\xe0b\xb5O\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xff030:0xff03f], b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff')
def test_directory_sn_fat12_one_fat(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=1, device_id=3750448905)
fatfs.plain_fatfs.create_directory('TESTFOLD')
fatfs.init_wl()
fatfs.wl_write_filesystem(CFG['output_file'])
with open(CFG['output_file'], 'rb') as fs_file:
file_system = fs_file.read()
# boot sector
self.assertEqual(file_system[0x1000:0x1010], b'\xeb\xfe\x90MSDOS5.0\x00\x10\x01\x01\x00')
self.assertEqual(file_system[0x1010:0x1020], b'\x01\x00\x02\xfa\x00\xf8\x01\x00?\x00\xff\x00\x00\x00\x00\x00') # one fat b'\x01...'
self.assertEqual(file_system[0x102b:0x1034], b'Espressif')
self.assertEqual(file_system[0x3000:0x300c], b'TESTFOLD \x10') # check entry name and type
self.assertEqual(file_system[0x2000:0x2006], b'\xf8\xff\xff\xff\x0f\x00') # check fat
self.assertEqual(file_system[0x7000:0x700c], b'. \x10') # reference to itself
self.assertEqual(file_system[0x7020:0x702c], b'.. \x10') # reference to parent
# check state1
self.assertEqual(file_system[0xfb000:0xfb00f], b'\x00\x00\x00\x00\xfb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xfb010:0xfb020], b'\x10\x00\x00\x00\x00\x10\x00\x00\x02\x00\x00\x00\tO\x8b\xdf')
self.assertEqual(file_system[0xfb020:0xfb02f], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xfb031:0xfb040], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd4\xa1\x94i')
# check state2
self.assertEqual(file_system[0xfd000:0xfd00f], b'\x00\x00\x00\x00\xfb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xfd010:0xfd020], b'\x10\x00\x00\x00\x00\x10\x00\x00\x02\x00\x00\x00\tO\x8b\xdf')
self.assertEqual(file_system[0xfd020:0xfd02f], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xfd031:0xfd040], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd4\xa1\x94i')
# check config
self.assertEqual(file_system[0xff001:0xff010], b'\x00\x00\x00\x00\x00\x10\x00\x00\x10\x00\x00\x00\x10\x00\x00')
self.assertEqual(file_system[0xff010:0xff01f], b'\x10\x00\x00\x00\x10\x00\x00\x00\x02\x00\x00\x00 \x00\x00')
self.assertEqual(file_system[0xff020:0xff030], b'\xe0b\xb5O\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xff030:0xff03f], b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff')
def test_directory_sn_fat122mb(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=2, device_id=3750448905, size=2 * 1024 * 1024)
fatfs.plain_fatfs.create_directory('TESTFOLD')
fatfs.init_wl()
fatfs.wl_write_filesystem(CFG['output_file'])
with open(CFG['output_file'], 'rb') as fs_file:
file_system = fs_file.read()
# check state1
self.assertEqual(file_system[0x1f9000:0x1f900e], b'\x00\x00\x00\x00\xf9\x01\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0x1f9010:0x1f9020],
b'\x10\x00\x00\x00\x00\x10\x00\x00\x02\x00\x00\x00\tO\x8b\xdf')
self.assertEqual(file_system[0x1f9020:0x1f902e], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0x1f9030:0x1f9040], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00j5\xbdp')
# check state2
self.assertEqual(file_system[0x1fc000:0x1fc00e], b'\x00\x00\x00\x00\xf9\x01\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0x1fc010:0x1fc020],
b'\x10\x00\x00\x00\x00\x10\x00\x00\x02\x00\x00\x00\tO\x8b\xdf')
self.assertEqual(file_system[0x1fc020:0x1fc02e], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0x1fc030:0x1fc040], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00j5\xbdp')
# check config
self.assertEqual(file_system[0x1ff000:0x1ff00f], b'\x00\x00\x00\x00\x00\x00 \x00\x00\x10\x00\x00\x00\x10\x00')
self.assertEqual(file_system[0x1ff010:0x1ff01f], b'\x10\x00\x00\x00\x10\x00\x00\x00\x02\x00\x00\x00 \x00\x00')
self.assertEqual(file_system[0x1ff020:0x1ff030], b')\x892j\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0x1ff030:0x1ff03e], b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff')
def test_directory_sn_fat122mb_one_fat(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=1, device_id=3750448905, size=2 * 1024 * 1024)
fatfs.plain_fatfs.create_directory('TESTFOLD')
fatfs.init_wl()
fatfs.wl_write_filesystem(CFG['output_file'])
with open(CFG['output_file'], 'rb') as fs_file:
file_system = fs_file.read()
# check state1
self.assertEqual(file_system[0x1f9000:0x1f900e], b'\x00\x00\x00\x00\xf9\x01\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0x1f9010:0x1f9020],
b'\x10\x00\x00\x00\x00\x10\x00\x00\x02\x00\x00\x00\tO\x8b\xdf')
self.assertEqual(file_system[0x1f9020:0x1f902e], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0x1f9030:0x1f9040], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00j5\xbdp')
# check state2
self.assertEqual(file_system[0x1fc000:0x1fc00e], b'\x00\x00\x00\x00\xf9\x01\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0x1fc010:0x1fc020],
b'\x10\x00\x00\x00\x00\x10\x00\x00\x02\x00\x00\x00\tO\x8b\xdf')
self.assertEqual(file_system[0x1fc020:0x1fc02e], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0x1fc030:0x1fc040], b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00j5\xbdp')
# check config
self.assertEqual(file_system[0x1ff000:0x1ff00f], b'\x00\x00\x00\x00\x00\x00 \x00\x00\x10\x00\x00\x00\x10\x00')
self.assertEqual(file_system[0x1ff010:0x1ff01f], b'\x10\x00\x00\x00\x10\x00\x00\x00\x02\x00\x00\x00 \x00\x00')
self.assertEqual(file_system[0x1ff020:0x1ff030], b')\x892j\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0x1ff030:0x1ff03e], b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff')
def test_write_not_initialized_wlfatfs(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=2)
fatfs.plain_fatfs.create_directory('TESTFOLD')
self.assertRaises(WLNotInitialized, fatfs.wl_write_filesystem, CFG['output_file'])
def test_e2e_deep_folder_into_image_ext(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=2)
fatfs.plain_fatfs.generate(CFG['test_dir2'])
fatfs.init_wl()
fatfs.wl_write_filesystem(CFG['output_file'])
with open(CFG['output_file'], 'rb') as fs_file:
file_system = bytearray(fs_file.read())
self.assertEqual(file_system[0x4020:0x4030], b'TESTFILE \x00\x00\x00\x00')
self.assertEqual(file_system[0x8060:0x8070], b'TESTFIL2 \x00\x00\x00\x00')
self.assertEqual(file_system[0x9000:0x9010], b'. \x10\x00\x00\x00\x00')
self.assertEqual(file_system[0x9040:0x9050], b'LASTFILETXT \x00\x00\x00\x00')
self.assertEqual(file_system[0xa000:0xa010], b'deeptest\n\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xb000:0xb010], b'thisistest\n\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xc000:0xc010], b'ahoj\n\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xd000:0xd009], b'\xff\xff\xff\xff\xff\xff\xff\xff\xff')
def test_e2e_deep_folder_into_image_ext_one_fat(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=1)
fatfs.plain_fatfs.generate(CFG['test_dir2'])
fatfs.init_wl()
fatfs.wl_write_filesystem(CFG['output_file'])
with open(CFG['output_file'], 'rb') as fs_file:
file_system = bytearray(fs_file.read())
self.assertEqual(file_system[0x3020:0x3030], b'TESTFILE \x00\x00\x00\x00')
self.assertEqual(file_system[0x7060:0x7070], b'TESTFIL2 \x00\x00\x00\x00')
self.assertEqual(file_system[0x8000:0x8010], b'. \x10\x00\x00\x00\x00')
self.assertEqual(file_system[0x8040:0x8050], b'LASTFILETXT \x00\x00\x00\x00')
self.assertEqual(file_system[0x9000:0x9010], b'deeptest\n\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xa000:0xa010], b'thisistest\n\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xb000:0xb010], b'ahoj\n\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xc000:0xc009], b'\xff\xff\xff\xff\xff\xff\xff\xff\xff')
def test_e2e_deep_folder_into_image(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=2)
fatfs.plain_fatfs.generate(CFG['test_dir'])
fatfs.init_wl()
fatfs.wl_write_filesystem(CFG['output_file'])
with open(CFG['output_file'], 'rb') as fs_file:
file_system = bytearray(fs_file.read())
self.assertEqual(file_system[0x8060:0x8070], b'TESTFIL2 \x00\x00\x00\x00')
self.assertEqual(file_system[0x8070:0x8080], b'!\x00!\x00\x00\x00\x00\x00!\x00\x05\x00\x0b\x00\x00\x00')
self.assertEqual(file_system[0x9040:0x9050], b'LASTFILE \x00\x00\x00\x00')
self.assertEqual(file_system[0xa000:0xa010], b'deeptest\n\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xb000:0xb010], b'thisistest\n\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xc000:0xc010], b'ahoj\n\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
def test_e2e_deep_folder_into_image_one_fat(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=1)
fatfs.plain_fatfs.generate(CFG['test_dir'])
fatfs.init_wl()
fatfs.wl_write_filesystem(CFG['output_file'])
with open(CFG['output_file'], 'rb') as fs_file:
file_system = bytearray(fs_file.read())
self.assertEqual(file_system[0x7060:0x7070], b'TESTFIL2 \x00\x00\x00\x00')
self.assertEqual(file_system[0x7070:0x7080], b'!\x00!\x00\x00\x00\x00\x00!\x00\x05\x00\x0b\x00\x00\x00')
self.assertEqual(file_system[0x8040:0x8050], b'LASTFILE \x00\x00\x00\x00')
self.assertEqual(file_system[0x9000:0x9010], b'deeptest\n\x00\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xa000:0xa010], b'thisistest\n\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xb000:0xb010], b'ahoj\n\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
def test_chaining_wl_fat16(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=2, size=17 * 1024 * 1024)
fatfs.plain_fatfs.create_file('WRITEF', extension='TXT')
fatfs.plain_fatfs.write_content(path_from_root=['WRITEF.TXT'], content=CFG['sector_size'] * b'a' + b'a')
fatfs.init_wl()
fatfs.wl_write_filesystem(CFG['output_file'])
with open(CFG['output_file'], 'rb') as fs_file:
file_system = bytearray(fs_file.read())
self.assertEqual(file_system[0x2000: 0x200e], b'\xf8\xff\xff\xff\x03\x00\xff\xff\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xd000: 0xe000], b'a' + (CFG['sector_size'] - 1) * b'\x00')
def test_chaining_wl_fat16_one_fat(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=1, size=17 * 1024 * 1024)
fatfs.plain_fatfs.create_file('WRITEF', extension='TXT')
fatfs.plain_fatfs.write_content(path_from_root=['WRITEF.TXT'], content=CFG['sector_size'] * b'a' + b'a')
fatfs.init_wl()
fatfs.wl_write_filesystem(CFG['output_file'])
with open(CFG['output_file'], 'rb') as fs_file:
file_system = bytearray(fs_file.read())
self.assertEqual(file_system[0x2000: 0x200e], b'\xf8\xff\xff\xff\x03\x00\xff\xff\x00\x00\x00\x00\x00\x00')
self.assertEqual(file_system[0xa000: 0xb000], b'a' + (CFG['sector_size'] - 1) * b'\x00')
def test_full_sector_folder_wl_fat16(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=2, size=17 * 1024 * 1024)
fatfs.plain_fatfs.create_directory('TESTFOLD')
fill_sector(fatfs.plain_fatfs)
fatfs.plain_fatfs.write_content(path_from_root=['TESTFOLD', 'A0'], content=b'first')
fatfs.plain_fatfs.write_content(path_from_root=['TESTFOLD', 'A126'], content=b'later')
fatfs.init_wl()
fatfs.wl_write_filesystem(CFG['output_file'])
with open(CFG['output_file'], 'rb') as fs_file:
file_system = bytearray(fs_file.read())
self.assertEqual(file_system[0x2000: 0x2110],
b'\xf8\xff\xff\xff\x82\x00' + 258 * b'\xff' + 8 * b'\x00')
self.assertEqual(file_system[0x8b000:0x8b005], b'later')
self.assertEqual(file_system[0x8c000:0x8c010], b'A126 \x00\x00\x00\x00')
self.assertEqual(file_system[0x8c020:0x8c030], b'A127 \x00\x00\x00\x00')
def test_full_sector_folder_wl_fat16_one_fat(self) -> None:
fatfs = wl_fatfsgen.WLFATFS(fat_tables_cnt=1, size=17 * 1024 * 1024)
fatfs.plain_fatfs.create_directory('TESTFOLD')
fill_sector(fatfs.plain_fatfs)
fatfs.plain_fatfs.write_content(path_from_root=['TESTFOLD', 'A0'], content=b'first')
fatfs.plain_fatfs.write_content(path_from_root=['TESTFOLD', 'A126'], content=b'later')
fatfs.init_wl()
fatfs.wl_write_filesystem(CFG['output_file'])
with open(CFG['output_file'], 'rb') as fs_file:
file_system = bytearray(fs_file.read())
self.assertEqual(file_system[0x2000: 0x2110],
b'\xf8\xff\xff\xff\x82\x00' + 258 * b'\xff' + 8 * b'\x00')
self.assertEqual(file_system[0x88000:0x88005], b'later')
self.assertEqual(file_system[0x89000:0x89010], b'A126 \x00\x00\x00\x00')
self.assertEqual(file_system[0x89020:0x89030], b'A127 \x00\x00\x00\x00')
if __name__ == '__main__':
unittest.main()
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