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#!/usr/bin/env python
# Copyright (c) 2012 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import shutil
import subprocess
import sys
import tempfile
import unittest
SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
PARENT_DIR = os.path.dirname(SCRIPT_DIR)
DATA_DIR = os.path.join(SCRIPT_DIR, 'data')
CHROME_SRC = os.path.dirname(os.path.dirname(os.path.dirname(PARENT_DIR)))
MOCK_DIR = os.path.join(CHROME_SRC, "third_party", "pymock")
# For the mock library
sys.path.append(MOCK_DIR)
sys.path.append(PARENT_DIR)
import create_nmf
import getos
import mock
class TestIsDynamicElf(unittest.TestCase):
def test_arm(self):
static_nexe = os.path.join(DATA_DIR, 'test_static_arm.nexe')
self.assertFalse(create_nmf.IsDynamicElf(static_nexe, False))
def test_x86_32(self):
dyn_nexe = os.path.join(DATA_DIR, 'test_dynamic_x86_32.nexe')
static_nexe = os.path.join(DATA_DIR, 'test_static_x86_32.nexe')
self.assertTrue(create_nmf.IsDynamicElf(dyn_nexe, False))
self.assertFalse(create_nmf.IsDynamicElf(static_nexe, False))
def test_x86_64(self):
dyn_nexe = os.path.join(DATA_DIR, 'test_dynamic_x86_64.nexe')
static_nexe = os.path.join(DATA_DIR, 'test_static_x86_64.nexe')
self.assertTrue(create_nmf.IsDynamicElf(dyn_nexe, True))
self.assertFalse(create_nmf.IsDynamicElf(static_nexe, True))
class TestParseElfHeader(unittest.TestCase):
def test_invalid_elf(self):
self.assertRaises(create_nmf.Error, create_nmf.ParseElfHeader, __file__)
def test_arm_elf_parse(self):
"""Test parsing of ARM elf header."""
static_nexe = os.path.join(DATA_DIR, 'test_static_arm.nexe')
arch, dynamic = create_nmf.ParseElfHeader(static_nexe)
self.assertEqual(arch, 'arm')
self.assertFalse(dynamic)
def test_x86_32_elf_parse(self):
"""Test parsing of x86-32 elf header."""
dyn_nexe = os.path.join(DATA_DIR, 'test_dynamic_x86_32.nexe')
static_nexe = os.path.join(DATA_DIR, 'test_static_x86_32.nexe')
arch, dynamic = create_nmf.ParseElfHeader(dyn_nexe)
self.assertEqual(arch, 'x86-32')
self.assertTrue(dynamic)
arch, dynamic = create_nmf.ParseElfHeader(static_nexe)
self.assertEqual(arch, 'x86-32')
self.assertFalse(dynamic)
def test_x86_64_elf_parse(self):
"""Test parsing of x86-64 elf header."""
dyn_nexe = os.path.join(DATA_DIR, 'test_dynamic_x86_64.nexe')
static_nexe = os.path.join(DATA_DIR, 'test_static_x86_64.nexe')
arch, dynamic = create_nmf.ParseElfHeader(dyn_nexe)
self.assertEqual(arch, 'x86-64')
self.assertTrue(dynamic)
arch, dynamic = create_nmf.ParseElfHeader(static_nexe)
self.assertEqual(arch, 'x86-64')
self.assertFalse(dynamic)
class TestDefaultLibpath(unittest.TestCase):
def testWithoutNaClSDKRoot(self):
"""GetDefaultLibPath wihtout NACL_SDK_ROOT set
In the absence of NACL_SDK_ROOT GetDefaultLibPath should
return the empty list."""
with mock.patch.dict('os.environ', clear=True):
paths = create_nmf.GetDefaultLibPath('Debug')
self.assertEqual(paths, [])
def testHonorNaClSDKRoot(self):
with mock.patch.dict('os.environ', {'NACL_SDK_ROOT': '/dummy/path'}):
paths = create_nmf.GetDefaultLibPath('Debug')
for path in paths:
self.assertTrue(path.startswith('/dummy/path'))
def testIncludesNaClPorts(self):
with mock.patch.dict('os.environ', {'NACL_SDK_ROOT': '/dummy/path'}):
paths = create_nmf.GetDefaultLibPath('Debug')
self.assertTrue(any(os.path.join('ports', 'lib') in p for p in paths),
"naclports libpath missing: %s" % str(paths))
class TestNmfUtils(unittest.TestCase):
"""Tests for the main NmfUtils class in create_nmf."""
def setUp(self):
self.tempdir = None
toolchain = os.path.join(CHROME_SRC, 'native_client', 'toolchain')
self.toolchain = os.path.join(toolchain, '%s_x86' % getos.GetPlatform())
self.objdump = os.path.join(self.toolchain, 'bin', 'i686-nacl-objdump')
if os.name == 'nt':
self.objdump += '.exe'
self.Mktemp()
self.dyn_nexe = self.createTestNexe('test_dynamic_x86_32.nexe', True,
'i686')
self.dyn_deps = set(['libc.so', 'runnable-ld.so',
'libgcc_s.so', 'libpthread.so'])
def createTestNexe(self, name, dynamic, arch):
"""Create an empty test .nexe file for use in create_nmf tests.
This is used rather than checking in test binaries since the
checked in binaries depend on .so files that only exist in the
certain SDK that build them.
"""
compiler = os.path.join(self.toolchain, 'bin', '%s-nacl-g++' % arch)
if os.name == 'nt':
compiler += '.exe'
os.environ['CYGWIN'] = 'nodosfilewarning'
program = 'int main() { return 0; }'
name = os.path.join(self.tempdir, name)
cmd = [compiler, '-pthread', '-x' , 'c', '-o', name, '-']
p = subprocess.Popen(cmd, stdin=subprocess.PIPE)
p.communicate(input=program)
self.assertEqual(p.returncode, 0)
return name
def tearDown(self):
if self.tempdir:
shutil.rmtree(self.tempdir)
def Mktemp(self):
self.tempdir = tempfile.mkdtemp()
def CreateNmfUtils(self, libdir=None):
if not libdir:
libdir = os.path.join(self.toolchain, 'x86_64-nacl', 'lib32')
return create_nmf.NmfUtils([self.dyn_nexe],
lib_path=[libdir],
objdump=self.objdump)
def testGetNeededStatic(self):
nexe = os.path.join(DATA_DIR, 'test_static_x86_32.nexe')
nmf = create_nmf.NmfUtils([nexe])
needed = nmf.GetNeeded()
# static nexe should have exactly one needed file
self.assertEqual(len(needed), 1)
self.assertEqual(needed.keys()[0], nexe)
# arch of needed file should be x86-32
archfile = needed.values()[0]
self.assertEqual(archfile.arch, 'x86-32')
def StripDependencies(self, deps):
"""Strip the dirnames and version suffixes from
a list of nexe dependencies.
e.g:
/path/to/libpthread.so.1a2d3fsa -> libpthread.so
"""
names = []
for name in deps:
name = os.path.basename(name)
if '.so.' in name:
name = name.rsplit('.', 1)[0]
names.append(name)
return names
def testGetNeededDynamic(self):
nmf = self.CreateNmfUtils()
needed = nmf.GetNeeded()
names = needed.keys()
# this nexe has 5 dependencies
expected = set(self.dyn_deps)
expected.add(os.path.basename(self.dyn_nexe))
basenames = set(self.StripDependencies(names))
self.assertEqual(expected, basenames)
def testStageDependencies(self):
self.Mktemp()
nmf = self.CreateNmfUtils()
#create_nmf.DebugPrint.debug_mode = True
#create_nmf.Trace.verbose = True
# Stage dependencies
nmf.StageDependencies(self.tempdir)
# Verify directory contents
contents = set(os.listdir(self.tempdir))
expectedContents = set((os.path.basename(self.dyn_nexe), 'lib32'))
self.assertEqual(contents, expectedContents)
contents = os.listdir(os.path.join(self.tempdir, 'lib32'))
contents = self.StripDependencies(contents)
contents = set(contents)
expectedContents = self.dyn_deps
self.assertEqual(contents, expectedContents)
def testMissingArchLibrary(self):
self.Mktemp()
nmf = self.CreateNmfUtils()
# CreateNmfUtils uses the 32-bit library path, but not the 64-bit one
# so searching for a 32-bit library should succeed while searching for
# a 64-bit one should fail.
nmf.GleanFromObjdump(['libgcc_s.so.1'], 'x86-32')
self.assertRaises(create_nmf.Error,
nmf.GleanFromObjdump, ['libgcc_s.so.1'], 'x86-64')
if __name__ == '__main__':
unittest.main()
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