OVMS3-idf/components/partition_table/test_gen_esp32part_host/gen_esp32part_tests.py
2018-11-28 15:57:20 +08:00

453 lines
16 KiB
Python
Executable file

#!/usr/bin/env python
from __future__ import print_function, division
import unittest
import struct
import csv
import sys
import subprocess
import tempfile
import os
import io
sys.path.append("..")
from gen_esp32part import *
SIMPLE_CSV = """
# Name,Type,SubType,Offset,Size,Flags
factory,0,2,65536,1048576,
"""
LONGER_BINARY_TABLE = b""
# type 0x00, subtype 0x00,
# offset 64KB, size 1MB
LONGER_BINARY_TABLE += b"\xAA\x50\x00\x00" + \
b"\x00\x00\x01\x00" + \
b"\x00\x00\x10\x00" + \
b"factory\0" + (b"\0"*8) + \
b"\x00\x00\x00\x00"
# type 0x01, subtype 0x20,
# offset 0x110000, size 128KB
LONGER_BINARY_TABLE += b"\xAA\x50\x01\x20" + \
b"\x00\x00\x11\x00" + \
b"\x00\x02\x00\x00" + \
b"data" + (b"\0"*12) + \
b"\x00\x00\x00\x00"
# type 0x10, subtype 0x00,
# offset 0x150000, size 1MB
LONGER_BINARY_TABLE += b"\xAA\x50\x10\x00" + \
b"\x00\x00\x15\x00" + \
b"\x00\x10\x00\x00" + \
b"second" + (b"\0"*10) + \
b"\x00\x00\x00\x00"
# MD5 checksum
LONGER_BINARY_TABLE += b"\xEB\xEB" + b"\xFF" * 14
LONGER_BINARY_TABLE += b'\xf9\xbd\x06\x1b\x45\x68\x6f\x86\x57\x1a\x2c\xd5\x2a\x1d\xa6\x5b'
# empty partition
LONGER_BINARY_TABLE += b"\xFF" * 32
def _strip_trailing_ffs(binary_table):
"""
Strip all FFs down to the last 32 bytes (terminating entry)
"""
while binary_table.endswith(b"\xFF"*64):
binary_table = binary_table[0:len(binary_table)-32]
return binary_table
class Py23TestCase(unittest.TestCase):
def __init__(self, *args, **kwargs):
super(Py23TestCase, self).__init__(*args, **kwargs)
try:
self.assertRaisesRegex
except AttributeError:
# assertRaisesRegexp is deprecated in Python3 but assertRaisesRegex doesn't exist in Python2
# This fix is used in order to avoid using the alias from the six library
self.assertRaisesRegex = self.assertRaisesRegexp
class CSVParserTests(Py23TestCase):
def test_simple_partition(self):
table = PartitionTable.from_csv(SIMPLE_CSV)
self.assertEqual(len(table), 1)
self.assertEqual(table[0].name, "factory")
self.assertEqual(table[0].type, 0)
self.assertEqual(table[0].subtype, 2)
self.assertEqual(table[0].offset, 65536)
self.assertEqual(table[0].size, 1048576)
def test_require_type(self):
csv = """
# Name,Type, SubType,Offset,Size
ihavenotype,
"""
with self.assertRaisesRegex(InputError, "type"):
PartitionTable.from_csv(csv)
def test_type_subtype_names(self):
csv_magicnumbers = """
# Name, Type, SubType, Offset, Size
myapp, 0, 0,, 0x100000
myota_0, 0, 0x10,, 0x100000
myota_1, 0, 0x11,, 0x100000
myota_15, 0, 0x1f,, 0x100000
mytest, 0, 0x20,, 0x100000
myota_status, 1, 0,, 0x100000
"""
csv_nomagicnumbers = """
# Name, Type, SubType, Offset, Size
myapp, app, factory,, 0x100000
myota_0, app, ota_0,, 0x100000
myota_1, app, ota_1,, 0x100000
myota_15, app, ota_15,, 0x100000
mytest, app, test,, 0x100000
myota_status, data, ota,, 0x100000
"""
# make two equivalent partition tables, one using
# magic numbers and one using shortcuts. Ensure they match
magic = PartitionTable.from_csv(csv_magicnumbers)
magic.verify()
nomagic = PartitionTable.from_csv(csv_nomagicnumbers)
nomagic.verify()
self.assertEqual(nomagic["myapp"].type, 0)
self.assertEqual(nomagic["myapp"].subtype, 0)
self.assertEqual(nomagic["myapp"], magic["myapp"])
self.assertEqual(nomagic["myota_0"].type, 0)
self.assertEqual(nomagic["myota_0"].subtype, 0x10)
self.assertEqual(nomagic["myota_0"], magic["myota_0"])
self.assertEqual(nomagic["myota_15"], magic["myota_15"])
self.assertEqual(nomagic["mytest"], magic["mytest"])
self.assertEqual(nomagic["myota_status"], magic["myota_status"])
#self.assertEqual(nomagic.to_binary(), magic.to_binary())
def test_unit_suffixes(self):
csv = """
# Name, Type, Subtype, Offset, Size
one_megabyte, app, factory, 64k, 1M
"""
t = PartitionTable.from_csv(csv)
t.verify()
self.assertEqual(t[0].offset, 64*1024)
self.assertEqual(t[0].size, 1*1024*1024)
def test_default_offsets(self):
csv = """
# Name, Type, Subtype, Offset, Size
first, app, factory,, 1M
second, data, 0x15,, 1M
minidata, data, 0x40,, 32K
otherapp, app, factory,, 1M
"""
t = PartitionTable.from_csv(csv)
# 'first'
self.assertEqual(t[0].offset, 0x010000) # 64KB boundary as it's an app image
self.assertEqual(t[0].size, 0x100000) # Size specified in CSV
# 'second'
self.assertEqual(t[1].offset, 0x110000) # prev offset+size
self.assertEqual(t[1].size, 0x100000) # Size specified in CSV
# 'minidata'
self.assertEqual(t[2].offset, 0x210000)
# 'otherapp'
self.assertEqual(t[3].offset, 0x220000) # 64KB boundary as it's an app image
def test_negative_size_to_offset(self):
csv = """
# Name, Type, Subtype, Offset, Size
first, app, factory, 0x10000, -2M
second, data, 0x15, , 1M
"""
t = PartitionTable.from_csv(csv)
t.verify()
# 'first'
self.assertEqual(t[0].offset, 0x10000) # in CSV
self.assertEqual(t[0].size, 0x200000 - t[0].offset) # Up to 2M
# 'second'
self.assertEqual(t[1].offset, 0x200000) # prev offset+size
def test_overlapping_offsets_fail(self):
csv = """
first, app, factory, 0x100000, 2M
second, app, ota_0, 0x200000, 1M
"""
with self.assertRaisesRegex(InputError, "overlap"):
t = PartitionTable.from_csv(csv)
t.verify()
def test_unique_name_fail(self):
csv = """
first, app, factory, 0x100000, 1M
first, app, ota_0, 0x200000, 1M
"""
with self.assertRaisesRegex(InputError, "Partition names must be unique"):
t = PartitionTable.from_csv(csv)
t.verify()
class BinaryOutputTests(Py23TestCase):
def test_binary_entry(self):
csv = """
first, 0x30, 0xEE, 0x100400, 0x300000
"""
t = PartitionTable.from_csv(csv)
tb = _strip_trailing_ffs(t.to_binary())
self.assertEqual(len(tb), 64+32)
self.assertEqual(b'\xAA\x50', tb[0:2]) # magic
self.assertEqual(b'\x30\xee', tb[2:4]) # type, subtype
eo, es = struct.unpack("<LL", tb[4:12])
self.assertEqual(eo, 0x100400) # offset
self.assertEqual(es, 0x300000) # size
self.assertEqual(b"\xEB\xEB" + b"\xFF" * 14, tb[32:48])
self.assertEqual(b'\x43\x03\x3f\x33\x40\x87\x57\x51\x69\x83\x9b\x40\x61\xb1\x27\x26', tb[48:64])
def test_multiple_entries(self):
csv = """
first, 0x30, 0xEE, 0x100400, 0x300000
second,0x31, 0xEF, , 0x100000
"""
t = PartitionTable.from_csv(csv)
tb = _strip_trailing_ffs(t.to_binary())
self.assertEqual(len(tb), 96+32)
self.assertEqual(b'\xAA\x50', tb[0:2])
self.assertEqual(b'\xAA\x50', tb[32:34])
def test_encrypted_flag(self):
csv = """
# Name, Type, Subtype, Offset, Size, Flags
first, app, factory,, 1M, encrypted
"""
t = PartitionTable.from_csv(csv)
self.assertTrue(t[0].encrypted)
tb = _strip_trailing_ffs(t.to_binary())
tr = PartitionTable.from_binary(tb)
self.assertTrue(tr[0].encrypted)
class BinaryParserTests(Py23TestCase):
def test_parse_one_entry(self):
# type 0x30, subtype 0xee,
# offset 1MB, size 2MB
entry = b"\xAA\x50\x30\xee" + \
b"\x00\x00\x10\x00" + \
b"\x00\x00\x20\x00" + \
b"0123456789abc\0\0\0" + \
b"\x00\x00\x00\x00" + \
b"\xFF" * 32
# verify that parsing 32 bytes as a table
# or as a single Definition are the same thing
t = PartitionTable.from_binary(entry)
self.assertEqual(len(t), 1)
t[0].verify()
e = PartitionDefinition.from_binary(entry[:32])
self.assertEqual(t[0], e)
e.verify()
self.assertEqual(e.type, 0x30)
self.assertEqual(e.subtype, 0xEE)
self.assertEqual(e.offset, 0x100000)
self.assertEqual(e.size, 0x200000)
self.assertEqual(e.name, "0123456789abc")
def test_multiple_entries(self):
t = PartitionTable.from_binary(LONGER_BINARY_TABLE)
t.verify()
self.assertEqual(3, len(t))
self.assertEqual(t[0].type, APP_TYPE)
self.assertEqual(t[0].name, "factory")
self.assertEqual(t[1].type, DATA_TYPE)
self.assertEqual(t[1].name, "data")
self.assertEqual(t[2].type, 0x10)
self.assertEqual(t[2].name, "second")
round_trip = _strip_trailing_ffs(t.to_binary())
self.assertEqual(round_trip, LONGER_BINARY_TABLE)
def test_bad_magic(self):
bad_magic = b"OHAI" + \
b"\x00\x00\x10\x00" + \
b"\x00\x00\x20\x00" + \
b"0123456789abc\0\0\0" + \
b"\x00\x00\x00\x00"
with self.assertRaisesRegex(InputError, "Invalid magic bytes"):
PartitionTable.from_binary(bad_magic)
def test_bad_length(self):
bad_length = b"OHAI" + \
b"\x00\x00\x10\x00" + \
b"\x00\x00\x20\x00" + \
b"0123456789"
with self.assertRaisesRegex(InputError, "32 bytes"):
PartitionTable.from_binary(bad_length)
class CSVOutputTests(Py23TestCase):
def _readcsv(self, source_str):
return list(csv.reader(source_str.split("\n")))
def test_output_simple_formatting(self):
table = PartitionTable.from_csv(SIMPLE_CSV)
as_csv = table.to_csv(True)
c = self._readcsv(as_csv)
# first two lines should start with comments
self.assertEqual(c[0][0][0], "#")
self.assertEqual(c[1][0][0], "#")
row = c[2]
self.assertEqual(row[0], "factory")
self.assertEqual(row[1], "0")
self.assertEqual(row[2], "2")
self.assertEqual(row[3], "0x10000") # reformatted as hex
self.assertEqual(row[4], "0x100000") # also hex
# round trip back to a PartitionTable and check is identical
roundtrip = PartitionTable.from_csv(as_csv)
self.assertEqual(roundtrip, table)
def test_output_smart_formatting(self):
table = PartitionTable.from_csv(SIMPLE_CSV)
as_csv = table.to_csv(False)
c = self._readcsv(as_csv)
# first two lines should start with comments
self.assertEqual(c[0][0][0], "#")
self.assertEqual(c[1][0][0], "#")
row = c[2]
self.assertEqual(row[0], "factory")
self.assertEqual(row[1], "app")
self.assertEqual(row[2], "2")
self.assertEqual(row[3], "0x10000")
self.assertEqual(row[4], "1M")
# round trip back to a PartitionTable and check is identical
roundtrip = PartitionTable.from_csv(as_csv)
self.assertEqual(roundtrip, table)
class CommandLineTests(Py23TestCase):
def test_basic_cmdline(self):
try:
binpath = tempfile.mktemp()
csvpath = tempfile.mktemp()
# copy binary contents to temp file
with open(binpath, 'wb') as f:
f.write(LONGER_BINARY_TABLE)
# run gen_esp32part.py to convert binary file to CSV
output = subprocess.check_output([sys.executable, "../gen_esp32part.py",
binpath, csvpath], stderr=subprocess.STDOUT)
# reopen the CSV and check the generated binary is identical
self.assertNotIn(b"WARNING", output)
with open(csvpath, 'r') as f:
from_csv = PartitionTable.from_csv(f.read())
self.assertEqual(_strip_trailing_ffs(from_csv.to_binary()), LONGER_BINARY_TABLE)
# run gen_esp32part.py to conver the CSV to binary again
output = subprocess.check_output([sys.executable, "../gen_esp32part.py",
csvpath, binpath], stderr=subprocess.STDOUT)
self.assertNotIn(b"WARNING", output)
# assert that file reads back as identical
with open(binpath, 'rb') as f:
binary_readback = f.read()
binary_readback = _strip_trailing_ffs(binary_readback)
self.assertEqual(binary_readback, LONGER_BINARY_TABLE)
finally:
for path in binpath, csvpath:
try:
os.remove(path)
except OSError:
pass
class VerificationTests(Py23TestCase):
def test_bad_alignment(self):
csv = """
# Name,Type, SubType,Offset,Size
app,app, factory, 32K, 1M
"""
with self.assertRaisesRegex(ValidationError,
r"Offset.+not aligned"):
t = PartitionTable.from_csv(csv)
t.verify()
def test_warnings(self):
try:
sys.stderr = io.StringIO() # capture stderr
csv_1 = "app, 1, 2, 32K, 1M\n"
PartitionTable.from_csv(csv_1).verify()
self.assertIn("WARNING", sys.stderr.getvalue())
self.assertIn("partition type", sys.stderr.getvalue())
sys.stderr = io.StringIO()
csv_2 = "ota_0, app, ota_1, , 1M\n"
PartitionTable.from_csv(csv_2).verify()
self.assertIn("WARNING", sys.stderr.getvalue())
self.assertIn("partition subtype", sys.stderr.getvalue())
finally:
sys.stderr = sys.__stderr__
class PartToolTests(Py23TestCase):
def _run_parttool(self, csvcontents, args, info):
csvpath = tempfile.mktemp()
with open(csvpath, "w") as f:
f.write(csvcontents)
try:
output = subprocess.check_output([sys.executable, "../parttool.py"] + args.split(" ")
+ ["--partition-table-file", csvpath , "get_partition_info", "--info", info], stderr=subprocess.STDOUT)
self.assertNotIn(b"WARNING", output)
m = re.search(b"0x[0-9a-fA-F]+", output)
return m.group(0) if m else ""
finally:
os.remove(csvpath)
def test_find_basic(self):
csv = """
nvs, data, nvs, 0x9000, 0x4000
otadata, data, ota, 0xd000, 0x2000
phy_init, data, phy, 0xf000, 0x1000
factory, app, factory, 0x10000, 1M
"""
rpt = lambda args, info: self._run_parttool(csv, args, info)
self.assertEqual(
rpt("--partition-type=data --partition-subtype=nvs -q", "offset"), b"0x9000")
self.assertEqual(
rpt("--partition-type=data --partition-subtype=nvs -q", "size"), b"0x4000")
self.assertEqual(
rpt("--partition-name=otadata -q", "offset"), b"0xd000")
self.assertEqual(
rpt("--partition-boot-default -q", "offset"), b"0x10000")
def test_fallback(self):
csv = """
nvs, data, nvs, 0x9000, 0x4000
otadata, data, ota, 0xd000, 0x2000
phy_init, data, phy, 0xf000, 0x1000
ota_0, app, ota_0, 0x30000, 1M
ota_1, app, ota_1, , 1M
"""
rpt = lambda args, info: self._run_parttool(csv, args, info)
self.assertEqual(
rpt("--partition-type=app --partition-subtype=ota_1 -q", "offset"), b"0x130000")
self.assertEqual(
rpt("--partition-boot-default -q", "offset"), b"0x30000") # ota_0
csv_mod = csv.replace("ota_0", "ota_2")
self.assertEqual(
self._run_parttool(csv_mod, "--partition-boot-default -q", "offset"),
b"0x130000") # now default is ota_1
if __name__ =="__main__":
unittest.main()