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      1 # -*- coding: utf-8 -*-
      2 #                     The LLVM Compiler Infrastructure
      3 #
      4 # This file is distributed under the University of Illinois Open Source
      5 # License. See LICENSE.TXT for details.
      6 
      7 import libear
      8 import libscanbuild.intercept as sut
      9 import unittest
     10 import os.path
     11 
     12 
     13 class InterceptUtilTest(unittest.TestCase):
     14 
     15     def test_format_entry_filters_action(self):
     16         def test(command):
     17             trace = {'command': command, 'directory': '/opt/src/project'}
     18             return list(sut.format_entry(trace))
     19 
     20         self.assertTrue(test(['cc', '-c', 'file.c', '-o', 'file.o']))
     21         self.assertFalse(test(['cc', '-E', 'file.c']))
     22         self.assertFalse(test(['cc', '-MM', 'file.c']))
     23         self.assertFalse(test(['cc', 'this.o', 'that.o', '-o', 'a.out']))
     24 
     25     def test_format_entry_normalize_filename(self):
     26         parent = os.path.join(os.sep, 'home', 'me')
     27         current = os.path.join(parent, 'project')
     28 
     29         def test(filename):
     30             trace = {'directory': current, 'command': ['cc', '-c', filename]}
     31             return list(sut.format_entry(trace))[0]['file']
     32 
     33         self.assertEqual(os.path.join(current, 'file.c'), test('file.c'))
     34         self.assertEqual(os.path.join(current, 'file.c'), test('./file.c'))
     35         self.assertEqual(os.path.join(parent, 'file.c'), test('../file.c'))
     36         self.assertEqual(os.path.join(current, 'file.c'),
     37                          test(os.path.join(current, 'file.c')))
     38 
     39     def test_sip(self):
     40         def create_status_report(filename, message):
     41             content = """#!/usr/bin/env sh
     42                          echo 'sa-la-la-la'
     43                          echo 'la-la-la'
     44                          echo '{0}'
     45                          echo 'sa-la-la-la'
     46                          echo 'la-la-la'
     47                       """.format(message)
     48             lines = [line.strip() for line in content.split('\n')]
     49             with open(filename, 'w') as handle:
     50                 handle.write('\n'.join(lines))
     51                 handle.close()
     52             os.chmod(filename, 0x1ff)
     53 
     54         def create_csrutil(dest_dir, status):
     55             filename = os.path.join(dest_dir, 'csrutil')
     56             message = 'System Integrity Protection status: {0}'.format(status)
     57             return create_status_report(filename, message)
     58 
     59         def create_sestatus(dest_dir, status):
     60             filename = os.path.join(dest_dir, 'sestatus')
     61             message = 'SELinux status:\t{0}'.format(status)
     62             return create_status_report(filename, message)
     63 
     64         ENABLED = 'enabled'
     65         DISABLED = 'disabled'
     66 
     67         OSX = 'darwin'
     68         LINUX = 'linux'
     69 
     70         with libear.TemporaryDirectory() as tmpdir:
     71             try:
     72                 saved = os.environ['PATH']
     73                 os.environ['PATH'] = tmpdir + ':' + saved
     74 
     75                 create_csrutil(tmpdir, ENABLED)
     76                 self.assertTrue(sut.is_preload_disabled(OSX))
     77 
     78                 create_csrutil(tmpdir, DISABLED)
     79                 self.assertFalse(sut.is_preload_disabled(OSX))
     80 
     81                 create_sestatus(tmpdir, ENABLED)
     82                 self.assertTrue(sut.is_preload_disabled(LINUX))
     83 
     84                 create_sestatus(tmpdir, DISABLED)
     85                 self.assertFalse(sut.is_preload_disabled(LINUX))
     86             finally:
     87                 os.environ['PATH'] = saved
     88 
     89         try:
     90             saved = os.environ['PATH']
     91             os.environ['PATH'] = ''
     92             # shall be false when it's not in the path
     93             self.assertFalse(sut.is_preload_disabled(OSX))
     94             self.assertFalse(sut.is_preload_disabled(LINUX))
     95 
     96             self.assertFalse(sut.is_preload_disabled('unix'))
     97         finally:
     98             os.environ['PATH'] = saved
     99