fs_config: add unit tests (bd19c0cd) · Commits · e / os / android_build

tools/fs_config/README

+16 −0

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		@@ -124,3 +124,19 @@ For OEMs wishing to use the define AIDs in their native code, one can access the
		file like so:
		1. In your C code just #include "generated_oem_aid.h" and start using the declared identifiers.
		2. In your Makefile add this static library like so: LOCAL_STATIC_LIBRARIES := liboemaids

		Unit Tests:

		From within the fs_config directory, unit tests can be executed like so:
		$ python -m unittest test_fs_config_generator.Tests
		.............
		----------------------------------------------------------------------
		Ran 13 tests in 0.004s

		OK

		One could also use nose if they would like:
		$ nose2

		To add new tests, simply add a test_<xxx> method to the test class. It will automatically
		get picked up and added to the test suite.

tools/fs_config/fs_config_generator.py

+12 −0

Original line number	Diff line number	Diff line
		@@ -158,6 +158,12 @@ class AID(object):
		friendly = identifier[len(AID.PREFIX):].lower()
		self.friendly = AID._fixup_friendly(friendly)

		def __eq__(self, other):

		return self.identifier == other.identifier \
		and self.value == other.value and self.found == other.found \
		and self.normalized_value == other.normalized_value

		@staticmethod
		def is_friendly(name):
		"""Determines if an AID is a freindly name or C define.
		@@ -218,6 +224,12 @@ class FSConfig(object):
		self.path = path
		self.filename = filename

		def __eq__(self, other):

		return self.mode == other.mode and self.user == other.user \
		and self.group == other.group and self.caps == other.caps \
		and self.path == other.path and self.filename == other.filename


		class AIDHeaderParser(object):
		"""Parses an android_filesystem_config.h file.

tools/fs_config/test_fs_config_generator.py

0 → 100755

+257 −0

Original line number	Diff line number	Diff line
		#!/usr/bin/env python
		"""Unit test suite for the fs_config_genertor.py tool."""

		import tempfile
		import textwrap
		import unittest

		from fs_config_generator import AID
		from fs_config_generator import AIDHeaderParser
		from fs_config_generator import FSConfigFileParser
		from fs_config_generator import FSConfig
		from fs_config_generator import Utils


		# Disable protected access so we can test class internal
		# methods. Also, disable invalid-name as some of the
		# class method names are over length.
		# pylint: disable=protected-access,invalid-name
		class Tests(unittest.TestCase):
		"""Test class for unit tests"""

		def test_is_overlap(self):
		"""Test overlap detection helper"""

		self.assertTrue(AIDHeaderParser._is_overlap((0, 1), (1, 2)))

		self.assertTrue(AIDHeaderParser._is_overlap((0, 100), (90, 200)))

		self.assertTrue(AIDHeaderParser._is_overlap((20, 50), (1, 101)))

		self.assertFalse(AIDHeaderParser._is_overlap((0, 100), (101, 200)))

		self.assertFalse(AIDHeaderParser._is_overlap((-10, 0), (10, 20)))

		def test_in_any_range(self):
		"""Test if value in range"""

		self.assertFalse(Utils.in_any_range(50, [(100, 200), (1, 2), (1, 1)]))
		self.assertFalse(Utils.in_any_range(250, [(100, 200), (1, 2), (1, 1)]))

		self.assertTrue(Utils.in_any_range(100, [(100, 200), (1, 2), (1, 1)]))
		self.assertTrue(Utils.in_any_range(200, [(100, 200), (1, 2), (1, 1)]))
		self.assertTrue(Utils.in_any_range(150, [(100, 200)]))

		def test_aid(self):
		"""Test AID class constructor"""

		aid = AID('AID_FOO_BAR', '0xFF', 'myfakefile')
		self.assertEquals(aid.identifier, 'AID_FOO_BAR')
		self.assertEquals(aid.value, '0xFF')
		self.assertEquals(aid.found, 'myfakefile')
		self.assertEquals(aid.normalized_value, '255')
		self.assertEquals(aid.friendly, 'foo_bar')

		aid = AID('AID_MEDIA_EX', '1234', 'myfakefile')
		self.assertEquals(aid.identifier, 'AID_MEDIA_EX')
		self.assertEquals(aid.value, '1234')
		self.assertEquals(aid.found, 'myfakefile')
		self.assertEquals(aid.normalized_value, '1234')
		self.assertEquals(aid.friendly, 'mediaex')

		def test_aid_header_parser_good(self):
		"""Test AID Header Parser good input file"""

		with tempfile.NamedTemporaryFile() as temp_file:
		temp_file.write(
		textwrap.dedent("""
		#define AID_FOO 1000
		#define AID_BAR 1001
		#define SOMETHING "something"
		#define AID_OEM_RESERVED_START 2900
		#define AID_OEM_RESERVED_END 2999
		#define AID_OEM_RESERVED_1_START 7000
		#define AID_OEM_RESERVED_1_END 8000
		"""))
		temp_file.flush()

		parser = AIDHeaderParser(temp_file.name)
		oem_ranges = parser.oem_ranges
		aids = parser.aids

		self.assertTrue((2900, 2999) in oem_ranges)
		self.assertFalse((5000, 6000) in oem_ranges)

		for aid in aids:
		self.assertTrue(aid.normalized_value in ['1000', '1001'])
		self.assertFalse(aid.normalized_value in ['1', '2', '3'])

		def test_aid_header_parser_good_unordered(self):
		"""Test AID Header Parser good unordered input file"""

		with tempfile.NamedTemporaryFile() as temp_file:
		temp_file.write(
		textwrap.dedent("""
		#define AID_FOO 1000
		#define AID_OEM_RESERVED_1_END 8000
		#define AID_BAR 1001
		#define SOMETHING "something"
		#define AID_OEM_RESERVED_END 2999
		#define AID_OEM_RESERVED_1_START 7000
		#define AID_OEM_RESERVED_START 2900
		"""))
		temp_file.flush()

		parser = AIDHeaderParser(temp_file.name)
		oem_ranges = parser.oem_ranges
		aids = parser.aids

		self.assertTrue((2900, 2999) in oem_ranges)
		self.assertFalse((5000, 6000) in oem_ranges)

		for aid in aids:
		self.assertTrue(aid.normalized_value in ['1000', '1001'])
		self.assertFalse(aid.normalized_value in ['1', '2', '3'])

		def test_aid_header_parser_bad_aid(self):
		"""Test AID Header Parser bad aid input file"""

		with tempfile.NamedTemporaryFile() as temp_file:
		temp_file.write(
		textwrap.dedent("""
		#define AID_FOO "bad"
		"""))
		temp_file.flush()

		with self.assertRaises(SystemExit):
		AIDHeaderParser(temp_file.name)

		def test_aid_header_parser_bad_oem_range(self):
		"""Test AID Header Parser bad oem range input file"""

		with tempfile.NamedTemporaryFile() as temp_file:
		temp_file.write(
		textwrap.dedent("""
		#define AID_OEM_RESERVED_START 2900
		#define AID_OEM_RESERVED_END 1800
		"""))
		temp_file.flush()

		with self.assertRaises(SystemExit):
		AIDHeaderParser(temp_file.name)

		def test_aid_header_parser_bad_oem_range_no_end(self):
		"""Test AID Header Parser bad oem range (no end) input file"""

		with tempfile.NamedTemporaryFile() as temp_file:
		temp_file.write(
		textwrap.dedent("""
		#define AID_OEM_RESERVED_START 2900
		"""))
		temp_file.flush()

		with self.assertRaises(SystemExit):
		AIDHeaderParser(temp_file.name)

		def test_aid_header_parser_bad_oem_range_no_start(self):
		"""Test AID Header Parser bad oem range (no start) input file"""

		with tempfile.NamedTemporaryFile() as temp_file:
		temp_file.write(
		textwrap.dedent("""
		#define AID_OEM_RESERVED_END 2900
		"""))
		temp_file.flush()

		with self.assertRaises(SystemExit):
		AIDHeaderParser(temp_file.name)

		def test_aid_header_parser_bad_oem_range_mismatch_start_end(self):
		"""Test AID Header Parser bad oem range mismatched input file"""

		with tempfile.NamedTemporaryFile() as temp_file:
		temp_file.write(
		textwrap.dedent("""
		#define AID_OEM_RESERVED_START 2900
		#define AID_OEM_RESERVED_2_END 2900
		"""))
		temp_file.flush()

		with self.assertRaises(SystemExit):
		AIDHeaderParser(temp_file.name)

		def test_fs_config_file_parser_good(self):
		"""Test FSConfig Parser good input file"""

		with tempfile.NamedTemporaryFile() as temp_file:
		temp_file.write(
		textwrap.dedent("""
		[/system/bin/file]
		user: AID_FOO
		group: AID_SYSTEM
		mode: 0777
		caps: BLOCK_SUSPEND

		[/vendor/path/dir/]
		user: AID_FOO
		group: AID_SYSTEM
		mode: 0777
		caps: 0

		[AID_OEM1]
		# 5001 in base16
		value: 0x1389
		"""))
		temp_file.flush()

		parser = FSConfigFileParser([temp_file.name], [(5000, 5999)])
		files = parser.files
		dirs = parser.dirs
		aids = parser.aids

		self.assertEquals(len(files), 1)
		self.assertEquals(len(dirs), 1)
		self.assertEquals(len(aids), 1)

		aid = aids[0]
		fcap = files[0]
		dcap = dirs[0]

		self.assertEqual(fcap,
		FSConfig('0777', 'AID_FOO', 'AID_SYSTEM',
		'(1ULL << CAP_BLOCK_SUSPEND)',
		'/system/bin/file', temp_file.name))

		self.assertEqual(dcap,
		FSConfig('0777', 'AID_FOO', 'AID_SYSTEM', '(0)',
		'/vendor/path/dir/', temp_file.name))

		self.assertEqual(aid, AID('AID_OEM1', '0x1389', temp_file.name))

		def test_fs_config_file_parser_bad(self):
		"""Test FSConfig Parser bad input file"""

		with tempfile.NamedTemporaryFile() as temp_file:
		temp_file.write(
		textwrap.dedent("""
		[/system/bin/file]
		caps: BLOCK_SUSPEND
		"""))
		temp_file.flush()

		with self.assertRaises(SystemExit):
		FSConfigFileParser([temp_file.name], [(5000, 5999)])

		def test_fs_config_file_parser_bad_aid_range(self):
		"""Test FSConfig Parser bad aid range value input file"""

		with tempfile.NamedTemporaryFile() as temp_file:
		temp_file.write(
		textwrap.dedent("""
		[AID_OEM1]
		value: 25
		"""))
		temp_file.flush()

		with self.assertRaises(SystemExit):
		FSConfigFileParser([temp_file.name], [(5000, 5999)])