PRESUBMIT_test.py

   1 #!/usr/bin/env python
   2 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 import glob
   7 import json
   8 import os
   9 import re
  10 import subprocess
  11 import sys
  12 import unittest
  13
  14 import PRESUBMIT
  15 from PRESUBMIT_test_mocks import MockChange, MockFile, MockAffectedFile
  16 from PRESUBMIT_test_mocks import MockInputApi, MockOutputApi
  17
  18 _TEST_DATA_DIR = 'base/test/data/presubmit'
  19
  20 class IncludeOrderTest(unittest.TestCase):
  21   def testSystemHeaderOrder(self):
  22     scope = [(1, '#include <csystem.h>'),
  23              (2, '#include <cppsystem>'),
  24              (3, '#include "acustom.h"')]
  25     all_linenums = [linenum for (linenum, _) in scope]
  26     mock_input_api = MockInputApi()
  27     warnings = PRESUBMIT._CheckIncludeOrderForScope(scope, mock_input_api,
  28                                                     '', all_linenums)
  29     self.assertEqual(0, len(warnings))
  30
  31   def testSystemHeaderOrderMismatch1(self):
  32     scope = [(10, '#include <cppsystem>'),
  33              (20, '#include <csystem.h>'),
  34              (30, '#include "acustom.h"')]
  35     all_linenums = [linenum for (linenum, _) in scope]
  36     mock_input_api = MockInputApi()
  37     warnings = PRESUBMIT._CheckIncludeOrderForScope(scope, mock_input_api,
  38                                                     '', all_linenums)
  39     self.assertEqual(1, len(warnings))
  40     self.assertTrue('20' in warnings[0])
  41
  42   def testSystemHeaderOrderMismatch2(self):
  43     scope = [(10, '#include <cppsystem>'),
  44              (20, '#include "acustom.h"'),
  45              (30, '#include <csystem.h>')]
  46     all_linenums = [linenum for (linenum, _) in scope]
  47     mock_input_api = MockInputApi()
  48     warnings = PRESUBMIT._CheckIncludeOrderForScope(scope, mock_input_api,
  49                                                     '', all_linenums)
  50     self.assertEqual(1, len(warnings))
  51     self.assertTrue('30' in warnings[0])
  52
  53   def testSystemHeaderOrderMismatch3(self):
  54     scope = [(10, '#include "acustom.h"'),
  55              (20, '#include <csystem.h>'),
  56              (30, '#include <cppsystem>')]
  57     all_linenums = [linenum for (linenum, _) in scope]
  58     mock_input_api = MockInputApi()
  59     warnings = PRESUBMIT._CheckIncludeOrderForScope(scope, mock_input_api,
  60                                                     '', all_linenums)
  61     self.assertEqual(2, len(warnings))
  62     self.assertTrue('20' in warnings[0])
  63     self.assertTrue('30' in warnings[1])
  64
  65   def testAlphabeticalOrderMismatch(self):
  66     scope = [(10, '#include <csystem.h>'),
  67              (15, '#include <bsystem.h>'),
  68              (20, '#include <cppsystem>'),
  69              (25, '#include <bppsystem>'),
  70              (30, '#include "bcustom.h"'),
  71              (35, '#include "acustom.h"')]
  72     all_linenums = [linenum for (linenum, _) in scope]
  73     mock_input_api = MockInputApi()
  74     warnings = PRESUBMIT._CheckIncludeOrderForScope(scope, mock_input_api,
  75                                                     '', all_linenums)
  76     self.assertEqual(3, len(warnings))
  77     self.assertTrue('15' in warnings[0])
  78     self.assertTrue('25' in warnings[1])
  79     self.assertTrue('35' in warnings[2])
  80
  81   def testSpecialFirstInclude1(self):
  82     mock_input_api = MockInputApi()
  83     contents = ['#include "some/path/foo.h"',
  84                 '#include "a/header.h"']
  85     mock_file = MockFile('some/path/foo.cc', contents)
  86     warnings = PRESUBMIT._CheckIncludeOrderInFile(
  87         mock_input_api, mock_file, range(1, len(contents) + 1))
  88     self.assertEqual(0, len(warnings))
  89
  90   def testSpecialFirstInclude2(self):
  91     mock_input_api = MockInputApi()
  92     contents = ['#include "some/other/path/foo.h"',
  93                 '#include "a/header.h"']
  94     mock_file = MockFile('some/path/foo.cc', contents)
  95     warnings = PRESUBMIT._CheckIncludeOrderInFile(
  96         mock_input_api, mock_file, range(1, len(contents) + 1))
  97     self.assertEqual(0, len(warnings))
  98
  99   def testSpecialFirstInclude3(self):
 100     mock_input_api = MockInputApi()
 101     contents = ['#include "some/path/foo.h"',
 102                 '#include "a/header.h"']
 103     mock_file = MockFile('some/path/foo_platform.cc', contents)
 104     warnings = PRESUBMIT._CheckIncludeOrderInFile(
 105         mock_input_api, mock_file, range(1, len(contents) + 1))
 106     self.assertEqual(0, len(warnings))
 107
 108   def testSpecialFirstInclude4(self):
 109     mock_input_api = MockInputApi()
 110     contents = ['#include "some/path/bar.h"',
 111                 '#include "a/header.h"']
 112     mock_file = MockFile('some/path/foo_platform.cc', contents)
 113     warnings = PRESUBMIT._CheckIncludeOrderInFile(
 114         mock_input_api, mock_file, range(1, len(contents) + 1))
 115     self.assertEqual(1, len(warnings))
 116     self.assertTrue('2' in warnings[0])
 117
 118   def testSpecialFirstInclude5(self):
 119     mock_input_api = MockInputApi()
 120     contents = ['#include "some/other/path/foo.h"',
 121                 '#include "a/header.h"']
 122     mock_file = MockFile('some/path/foo-suffix.h', contents)
 123     warnings = PRESUBMIT._CheckIncludeOrderInFile(
 124         mock_input_api, mock_file, range(1, len(contents) + 1))
 125     self.assertEqual(0, len(warnings))
 126
 127   def testSpecialFirstInclude6(self):
 128     mock_input_api = MockInputApi()
 129     contents = ['#include "some/other/path/foo_win.h"',
 130                 '#include <set>',
 131                 '#include "a/header.h"']
 132     mock_file = MockFile('some/path/foo_unittest_win.h', contents)
 133     warnings = PRESUBMIT._CheckIncludeOrderInFile(
 134         mock_input_api, mock_file, range(1, len(contents) + 1))
 135     self.assertEqual(0, len(warnings))
 136
 137   def testOrderAlreadyWrong(self):
 138     scope = [(1, '#include "b.h"'),
 139              (2, '#include "a.h"'),
 140              (3, '#include "c.h"')]
 141     mock_input_api = MockInputApi()
 142     warnings = PRESUBMIT._CheckIncludeOrderForScope(scope, mock_input_api,
 143                                                     '', [3])
 144     self.assertEqual(0, len(warnings))
 145
 146   def testConflictAdded1(self):
 147     scope = [(1, '#include "a.h"'),
 148              (2, '#include "c.h"'),
 149              (3, '#include "b.h"')]
 150     mock_input_api = MockInputApi()
 151     warnings = PRESUBMIT._CheckIncludeOrderForScope(scope, mock_input_api,
 152                                                     '', [2])
 153     self.assertEqual(1, len(warnings))
 154     self.assertTrue('3' in warnings[0])
 155
 156   def testConflictAdded2(self):
 157     scope = [(1, '#include "c.h"'),
 158              (2, '#include "b.h"'),
 159              (3, '#include "d.h"')]
 160     mock_input_api = MockInputApi()
 161     warnings = PRESUBMIT._CheckIncludeOrderForScope(scope, mock_input_api,
 162                                                     '', [2])
 163     self.assertEqual(1, len(warnings))
 164     self.assertTrue('2' in warnings[0])
 165
 166   def testIfElifElseEndif(self):
 167     mock_input_api = MockInputApi()
 168     contents = ['#include "e.h"',
 169                 '#define foo',
 170                 '#include "f.h"',
 171                 '#undef foo',
 172                 '#include "e.h"',
 173                 '#if foo',
 174                 '#include "d.h"',
 175                 '#elif bar',
 176                 '#include "c.h"',
 177                 '#else',
 178                 '#include "b.h"',
 179                 '#endif',
 180                 '#include "a.h"']
 181     mock_file = MockFile('', contents)
 182     warnings = PRESUBMIT._CheckIncludeOrderInFile(
 183         mock_input_api, mock_file, range(1, len(contents) + 1))
 184     self.assertEqual(0, len(warnings))
 185
 186   def testExcludedIncludes(self):
 187     # #include <sys/...>'s can appear in any order.
 188     mock_input_api = MockInputApi()
 189     contents = ['#include <sys/b.h>',
 190                 '#include <sys/a.h>']
 191     mock_file = MockFile('', contents)
 192     warnings = PRESUBMIT._CheckIncludeOrderInFile(
 193         mock_input_api, mock_file, range(1, len(contents) + 1))
 194     self.assertEqual(0, len(warnings))
 195
 196     contents = ['#include <atlbase.h>',
 197                 '#include <aaa.h>']
 198     mock_file = MockFile('', contents)
 199     warnings = PRESUBMIT._CheckIncludeOrderInFile(
 200         mock_input_api, mock_file, range(1, len(contents) + 1))
 201     self.assertEqual(0, len(warnings))
 202
 203     contents = ['#include "build/build_config.h"',
 204                 '#include "aaa.h"']
 205     mock_file = MockFile('', contents)
 206     warnings = PRESUBMIT._CheckIncludeOrderInFile(
 207         mock_input_api, mock_file, range(1, len(contents) + 1))
 208     self.assertEqual(0, len(warnings))
 209
 210   def testCheckOnlyCFiles(self):
 211     mock_input_api = MockInputApi()
 212     mock_output_api = MockOutputApi()
 213     contents = ['#include <b.h>',
 214                 '#include <a.h>']
 215     mock_file_cc = MockFile('something.cc', contents)
 216     mock_file_h = MockFile('something.h', contents)
 217     mock_file_other = MockFile('something.py', contents)
 218     mock_input_api.files = [mock_file_cc, mock_file_h, mock_file_other]
 219     warnings = PRESUBMIT._CheckIncludeOrder(mock_input_api, mock_output_api)
 220     self.assertEqual(1, len(warnings))
 221     self.assertEqual(2, len(warnings[0].items))
 222     self.assertEqual('promptOrNotify', warnings[0].type)
 223
 224   def testUncheckableIncludes(self):
 225     mock_input_api = MockInputApi()
 226     contents = ['#include <windows.h>',
 227                 '#include "b.h"',
 228                 '#include "a.h"']
 229     mock_file = MockFile('', contents)
 230     warnings = PRESUBMIT._CheckIncludeOrderInFile(
 231         mock_input_api, mock_file, range(1, len(contents) + 1))
 232     self.assertEqual(1, len(warnings))
 233
 234     contents = ['#include "gpu/command_buffer/gles_autogen.h"',
 235                 '#include "b.h"',
 236                 '#include "a.h"']
 237     mock_file = MockFile('', contents)
 238     warnings = PRESUBMIT._CheckIncludeOrderInFile(
 239         mock_input_api, mock_file, range(1, len(contents) + 1))
 240     self.assertEqual(1, len(warnings))
 241
 242     contents = ['#include "gl_mock_autogen.h"',
 243                 '#include "b.h"',
 244                 '#include "a.h"']
 245     mock_file = MockFile('', contents)
 246     warnings = PRESUBMIT._CheckIncludeOrderInFile(
 247         mock_input_api, mock_file, range(1, len(contents) + 1))
 248     self.assertEqual(1, len(warnings))
 249
 250     contents = ['#include "ipc/some_macros.h"',
 251                 '#include "b.h"',
 252                 '#include "a.h"']
 253     mock_file = MockFile('', contents)
 254     warnings = PRESUBMIT._CheckIncludeOrderInFile(
 255         mock_input_api, mock_file, range(1, len(contents) + 1))
 256     self.assertEqual(1, len(warnings))
 257
 258
 259 class VersionControlConflictsTest(unittest.TestCase):
 260   def testTypicalConflict(self):
 261     lines = ['<<<<<<< HEAD',
 262              '  base::ScopedTempDir temp_dir_;',
 263              '=======',
 264              '  ScopedTempDir temp_dir_;',
 265              '>>>>>>> master']
 266     errors = PRESUBMIT._CheckForVersionControlConflictsInFile(
 267         MockInputApi(), MockFile('some/path/foo_platform.cc', lines))
 268     self.assertEqual(3, len(errors))
 269     self.assertTrue('1' in errors[0])
 270     self.assertTrue('3' in errors[1])
 271     self.assertTrue('5' in errors[2])
 272
 273   def testIgnoresReadmes(self):
 274     lines = ['A First Level Header',
 275              '====================',
 276              '',
 277              'A Second Level Header',
 278              '---------------------']
 279     errors = PRESUBMIT._CheckForVersionControlConflictsInFile(
 280         MockInputApi(), MockFile('some/polymer/README.md', lines))
 281     self.assertEqual(0, len(errors))
 282
 283 class UmaHistogramChangeMatchedOrNotTest(unittest.TestCase):
 284   def testTypicalCorrectlyMatchedChange(self):
 285     diff_cc = ['UMA_HISTOGRAM_BOOL("Bla.Foo.Dummy", true)']
 286     diff_xml = ['<histogram name="Bla.Foo.Dummy"> </histogram>']
 287     mock_input_api = MockInputApi()
 288     mock_input_api.files = [
 289       MockFile('some/path/foo.cc', diff_cc),
 290       MockFile('tools/metrics/histograms/histograms.xml', diff_xml),
 291     ]
 292     warnings = PRESUBMIT._CheckUmaHistogramChanges(mock_input_api,
 293                                                    MockOutputApi())
 294     self.assertEqual(0, len(warnings))
 295
 296   def testTypicalNotMatchedChange(self):
 297     diff_cc = ['UMA_HISTOGRAM_BOOL("Bla.Foo.Dummy", true)']
 298     mock_input_api = MockInputApi()
 299     mock_input_api.files = [MockFile('some/path/foo.cc', diff_cc)]
 300     warnings = PRESUBMIT._CheckUmaHistogramChanges(mock_input_api,
 301                                                    MockOutputApi())
 302     self.assertEqual(1, len(warnings))
 303     self.assertEqual('warning', warnings[0].type)
 304
 305   def testTypicalNotMatchedChangeViaSuffixes(self):
 306     diff_cc = ['UMA_HISTOGRAM_BOOL("Bla.Foo.Dummy", true)']
 307     diff_xml = ['<histogram_suffixes name="SuperHistogram">',
 308                 '  <suffix name="Dummy"/>',
 309                 '  <affected-histogram name="Snafu.Dummy"/>',
 310                 '</histogram>']
 311     mock_input_api = MockInputApi()
 312     mock_input_api.files = [
 313       MockFile('some/path/foo.cc', diff_cc),
 314       MockFile('tools/metrics/histograms/histograms.xml', diff_xml),
 315     ]
 316     warnings = PRESUBMIT._CheckUmaHistogramChanges(mock_input_api,
 317                                                    MockOutputApi())
 318     self.assertEqual(1, len(warnings))
 319     self.assertEqual('warning', warnings[0].type)
 320
 321   def testTypicalCorrectlyMatchedChangeViaSuffixes(self):
 322     diff_cc = ['UMA_HISTOGRAM_BOOL("Bla.Foo.Dummy", true)']
 323     diff_xml = ['<histogram_suffixes name="SuperHistogram">',
 324                 '  <suffix name="Dummy"/>',
 325                 '  <affected-histogram name="Bla.Foo"/>',
 326                 '</histogram>']
 327     mock_input_api = MockInputApi()
 328     mock_input_api.files = [
 329       MockFile('some/path/foo.cc', diff_cc),
 330       MockFile('tools/metrics/histograms/histograms.xml', diff_xml),
 331     ]
 332     warnings = PRESUBMIT._CheckUmaHistogramChanges(mock_input_api,
 333                                                    MockOutputApi())
 334     self.assertEqual(0, len(warnings))
 335
 336   def testTypicalCorrectlyMatchedChangeViaSuffixesWithSeparator(self):
 337     diff_cc = ['UMA_HISTOGRAM_BOOL("Snafu_Dummy", true)']
 338     diff_xml = ['<histogram_suffixes name="SuperHistogram" separator="_">',
 339                 '  <suffix name="Dummy"/>',
 340                 '  <affected-histogram name="Snafu"/>',
 341                 '</histogram>']
 342     mock_input_api = MockInputApi()
 343     mock_input_api.files = [
 344       MockFile('some/path/foo.cc', diff_cc),
 345       MockFile('tools/metrics/histograms/histograms.xml', diff_xml),
 346     ]
 347     warnings = PRESUBMIT._CheckUmaHistogramChanges(mock_input_api,
 348                                                    MockOutputApi())
 349     self.assertEqual(0, len(warnings))
 350
 351 class BadExtensionsTest(unittest.TestCase):
 352   def testBadRejFile(self):
 353     mock_input_api = MockInputApi()
 354     mock_input_api.files = [
 355       MockFile('some/path/foo.cc', ''),
 356       MockFile('some/path/foo.cc.rej', ''),
 357       MockFile('some/path2/bar.h.rej', ''),
 358     ]
 359
 360     results = PRESUBMIT._CheckPatchFiles(mock_input_api, MockOutputApi())
 361     self.assertEqual(1, len(results))
 362     self.assertEqual(2, len(results[0].items))
 363     self.assertTrue('foo.cc.rej' in results[0].items[0])
 364     self.assertTrue('bar.h.rej' in results[0].items[1])
 365
 366   def testBadOrigFile(self):
 367     mock_input_api = MockInputApi()
 368     mock_input_api.files = [
 369       MockFile('other/path/qux.h.orig', ''),
 370       MockFile('other/path/qux.h', ''),
 371       MockFile('other/path/qux.cc', ''),
 372     ]
 373
 374     results = PRESUBMIT._CheckPatchFiles(mock_input_api, MockOutputApi())
 375     self.assertEqual(1, len(results))
 376     self.assertEqual(1, len(results[0].items))
 377     self.assertTrue('qux.h.orig' in results[0].items[0])
 378
 379   def testGoodFiles(self):
 380     mock_input_api = MockInputApi()
 381     mock_input_api.files = [
 382       MockFile('other/path/qux.h', ''),
 383       MockFile('other/path/qux.cc', ''),
 384     ]
 385     results = PRESUBMIT._CheckPatchFiles(mock_input_api, MockOutputApi())
 386     self.assertEqual(0, len(results))
 387
 388
 389 class CheckSingletonInHeadersTest(unittest.TestCase):
 390   def testSingletonInArbitraryHeader(self):
 391     diff_singleton_h = ['base::subtle::AtomicWord '
 392                         'base::Singleton<Type, Traits, DifferentiatingType>::']
 393     diff_foo_h = ['// base::Singleton<Foo> in comment.',
 394                   'friend class base::Singleton<Foo>']
 395     diff_bad_h = ['Foo* foo = base::Singleton<Foo>::get();']
 396     mock_input_api = MockInputApi()
 397     mock_input_api.files = [MockAffectedFile('base/memory/singleton.h',
 398                                      diff_singleton_h),
 399                             MockAffectedFile('foo.h', diff_foo_h),
 400                             MockAffectedFile('bad.h', diff_bad_h)]
 401     warnings = PRESUBMIT._CheckSingletonInHeaders(mock_input_api,
 402                                                   MockOutputApi())
 403     self.assertEqual(1, len(warnings))
 404     self.assertEqual('error', warnings[0].type)
 405     self.assertTrue('Found base::Singleton<T>' in warnings[0].message)
 406
 407   def testSingletonInCC(self):
 408     diff_cc = ['Foo* foo = base::Singleton<Foo>::get();']
 409     mock_input_api = MockInputApi()
 410     mock_input_api.files = [MockAffectedFile('some/path/foo.cc', diff_cc)]
 411     warnings = PRESUBMIT._CheckSingletonInHeaders(mock_input_api,
 412                                                   MockOutputApi())
 413     self.assertEqual(0, len(warnings))
 414
 415
 416 class InvalidOSMacroNamesTest(unittest.TestCase):
 417   def testInvalidOSMacroNames(self):
 418     lines = ['#if defined(OS_WINDOWS)',
 419              ' #elif defined(OS_WINDOW)',
 420              ' # if defined(OS_MACOSX) || defined(OS_CHROME)',
 421              '# else  // defined(OS_MAC)',
 422              '#endif  // defined(OS_MACOS)']
 423     errors = PRESUBMIT._CheckForInvalidOSMacrosInFile(
 424         MockInputApi(), MockFile('some/path/foo_platform.cc', lines))
 425     self.assertEqual(len(lines), len(errors))
 426     self.assertTrue(':1 OS_WINDOWS' in errors[0])
 427     self.assertTrue('(did you mean OS_WIN?)' in errors[0])
 428
 429   def testValidOSMacroNames(self):
 430     lines = ['#if defined(%s)' % m for m in PRESUBMIT._VALID_OS_MACROS]
 431     errors = PRESUBMIT._CheckForInvalidOSMacrosInFile(
 432         MockInputApi(), MockFile('some/path/foo_platform.cc', lines))
 433     self.assertEqual(0, len(errors))
 434
 435
 436 class InvalidIfDefinedMacroNamesTest(unittest.TestCase):
 437   def testInvalidIfDefinedMacroNames(self):
 438     lines = ['#if defined(TARGET_IPHONE_SIMULATOR)',
 439              '#if !defined(TARGET_IPHONE_SIMULATOR)',
 440              '#elif defined(TARGET_IPHONE_SIMULATOR)',
 441              '#ifdef TARGET_IPHONE_SIMULATOR',
 442              ' # ifdef TARGET_IPHONE_SIMULATOR',
 443              '# if defined(VALID) || defined(TARGET_IPHONE_SIMULATOR)',
 444              '# else  // defined(TARGET_IPHONE_SIMULATOR)',
 445              '#endif  // defined(TARGET_IPHONE_SIMULATOR)',]
 446     errors = PRESUBMIT._CheckForInvalidIfDefinedMacrosInFile(
 447         MockInputApi(), MockFile('some/path/source.mm', lines))
 448     self.assertEqual(len(lines), len(errors))
 449
 450   def testValidIfDefinedMacroNames(self):
 451     lines = ['#if defined(FOO)',
 452              '#ifdef BAR',]
 453     errors = PRESUBMIT._CheckForInvalidIfDefinedMacrosInFile(
 454         MockInputApi(), MockFile('some/path/source.cc', lines))
 455     self.assertEqual(0, len(errors))
 456
 457
 458 class CheckAddedDepsHaveTetsApprovalsTest(unittest.TestCase):
 459   def testFilesToCheckForIncomingDeps(self):
 460     changed_lines = [
 461       '"+breakpad",',
 462       '"+chrome/installer",',
 463       '"+chrome/plugin/chrome_content_plugin_client.h",',
 464       '"+chrome/utility/chrome_content_utility_client.h",',
 465       '"+chromeos/chromeos_paths.h",',
 466       '"+components/crash/content",',
 467       '"+components/nacl/common",',
 468       '"+content/public/browser/render_process_host.h",',
 469       '"+jni/fooblat.h",',
 470       '"+grit",  # For generated headers',
 471       '"+grit/generated_resources.h",',
 472       '"+grit/",',
 473       '"+policy",  # For generated headers and source',
 474       '"+sandbox",',
 475       '"+tools/memory_watcher",',
 476       '"+third_party/lss/linux_syscall_support.h",',
 477     ]
 478     files_to_check = PRESUBMIT._FilesToCheckForIncomingDeps(re, changed_lines)
 479     expected = set([
 480       'breakpad/DEPS',
 481       'chrome/installer/DEPS',
 482       'chrome/plugin/chrome_content_plugin_client.h',
 483       'chrome/utility/chrome_content_utility_client.h',
 484       'chromeos/chromeos_paths.h',
 485       'components/crash/content/DEPS',
 486       'components/nacl/common/DEPS',
 487       'content/public/browser/render_process_host.h',
 488       'policy/DEPS',
 489       'sandbox/DEPS',
 490       'tools/memory_watcher/DEPS',
 491       'third_party/lss/linux_syscall_support.h',
 492     ])
 493     self.assertEqual(expected, files_to_check);
 494
 495
 496 class JSONParsingTest(unittest.TestCase):
 497   def testSuccess(self):
 498     input_api = MockInputApi()
 499     filename = 'valid_json.json'
 500     contents = ['// This is a comment.',
 501                 '{',
 502                 '  "key1": ["value1", "value2"],',
 503                 '  "key2": 3  // This is an inline comment.',
 504                 '}'
 505                 ]
 506     input_api.files = [MockFile(filename, contents)]
 507     self.assertEqual(None,
 508                      PRESUBMIT._GetJSONParseError(input_api, filename))
 509
 510   def testFailure(self):
 511     input_api = MockInputApi()
 512     test_data = [
 513       ('invalid_json_1.json',
 514        ['{ x }'],
 515        'Expecting property name:'),
 516       ('invalid_json_2.json',
 517        ['// Hello world!',
 518         '{ "hello": "world }'],
 519        'Unterminated string starting at:'),
 520       ('invalid_json_3.json',
 521        ['{ "a": "b", "c": "d", }'],
 522        'Expecting property name:'),
 523       ('invalid_json_4.json',
 524        ['{ "a": "b" "c": "d" }'],
 525        'Expecting , delimiter:'),
 526       ]
 527
 528     input_api.files = [MockFile(filename, contents)
 529                        for (filename, contents, _) in test_data]
 530
 531     for (filename, _, expected_error) in test_data:
 532       actual_error = PRESUBMIT._GetJSONParseError(input_api, filename)
 533       self.assertTrue(expected_error in str(actual_error),
 534                       "'%s' not found in '%s'" % (expected_error, actual_error))
 535
 536   def testNoEatComments(self):
 537     input_api = MockInputApi()
 538     file_with_comments = 'file_with_comments.json'
 539     contents_with_comments = ['// This is a comment.',
 540                               '{',
 541                               '  "key1": ["value1", "value2"],',
 542                               '  "key2": 3  // This is an inline comment.',
 543                               '}'
 544                               ]
 545     file_without_comments = 'file_without_comments.json'
 546     contents_without_comments = ['{',
 547                                  '  "key1": ["value1", "value2"],',
 548                                  '  "key2": 3',
 549                                  '}'
 550                                  ]
 551     input_api.files = [MockFile(file_with_comments, contents_with_comments),
 552                        MockFile(file_without_comments,
 553                                 contents_without_comments)]
 554
 555     self.assertEqual('No JSON object could be decoded',
 556                      str(PRESUBMIT._GetJSONParseError(input_api,
 557                                                       file_with_comments,
 558                                                       eat_comments=False)))
 559     self.assertEqual(None,
 560                      PRESUBMIT._GetJSONParseError(input_api,
 561                                                   file_without_comments,
 562                                                   eat_comments=False))
 563
 564
 565 class IDLParsingTest(unittest.TestCase):
 566   def testSuccess(self):
 567     input_api = MockInputApi()
 568     filename = 'valid_idl_basics.idl'
 569     contents = ['// Tests a valid IDL file.',
 570                 'namespace idl_basics {',
 571                 '  enum EnumType {',
 572                 '    name1,',
 573                 '    name2',
 574                 '  };',
 575                 '',
 576                 '  dictionary MyType1 {',
 577                 '    DOMString a;',
 578                 '  };',
 579                 '',
 580                 '  callback Callback1 = void();',
 581                 '  callback Callback2 = void(long x);',
 582                 '  callback Callback3 = void(MyType1 arg);',
 583                 '  callback Callback4 = void(EnumType type);',
 584                 '',
 585                 '  interface Functions {',
 586                 '    static void function1();',
 587                 '    static void function2(long x);',
 588                 '    static void function3(MyType1 arg);',
 589                 '    static void function4(Callback1 cb);',
 590                 '    static void function5(Callback2 cb);',
 591                 '    static void function6(Callback3 cb);',
 592                 '    static void function7(Callback4 cb);',
 593                 '  };',
 594                 '',
 595                 '  interface Events {',
 596                 '    static void onFoo1();',
 597                 '    static void onFoo2(long x);',
 598                 '    static void onFoo2(MyType1 arg);',
 599                 '    static void onFoo3(EnumType type);',
 600                 '  };',
 601                 '};'
 602                 ]
 603     input_api.files = [MockFile(filename, contents)]
 604     self.assertEqual(None,
 605                      PRESUBMIT._GetIDLParseError(input_api, filename))
 606
 607   def testFailure(self):
 608     input_api = MockInputApi()
 609     test_data = [
 610       ('invalid_idl_1.idl',
 611        ['//',
 612         'namespace test {',
 613         '  dictionary {',
 614         '    DOMString s;',
 615         '  };',
 616         '};'],
 617        'Unexpected "{" after keyword "dictionary".\n'),
 618       # TODO(yoz): Disabled because it causes the IDL parser to hang.
 619       # See crbug.com/363830.
 620       # ('invalid_idl_2.idl',
 621       #  (['namespace test {',
 622       #    '  dictionary MissingSemicolon {',
 623       #    '    DOMString a',
 624       #    '    DOMString b;',
 625       #    '  };',
 626       #    '};'],
 627       #   'Unexpected symbol DOMString after symbol a.'),
 628       ('invalid_idl_3.idl',
 629        ['//',
 630         'namespace test {',
 631         '  enum MissingComma {',
 632         '    name1',
 633         '    name2',
 634         '  };',
 635         '};'],
 636        'Unexpected symbol name2 after symbol name1.'),
 637       ('invalid_idl_4.idl',
 638        ['//',
 639         'namespace test {',
 640         '  enum TrailingComma {',
 641         '    name1,',
 642         '    name2,',
 643         '  };',
 644         '};'],
 645        'Trailing comma in block.'),
 646       ('invalid_idl_5.idl',
 647        ['//',
 648         'namespace test {',
 649         '  callback Callback1 = void(;',
 650         '};'],
 651        'Unexpected ";" after "(".'),
 652       ('invalid_idl_6.idl',
 653        ['//',
 654         'namespace test {',
 655         '  callback Callback1 = void(long );',
 656         '};'],
 657        'Unexpected ")" after symbol long.'),
 658       ('invalid_idl_7.idl',
 659        ['//',
 660         'namespace test {',
 661         '  interace Events {',
 662         '    static void onFoo1();',
 663         '  };',
 664         '};'],
 665        'Unexpected symbol Events after symbol interace.'),
 666       ('invalid_idl_8.idl',
 667        ['//',
 668         'namespace test {',
 669         '  interface NotEvent {',
 670         '    static void onFoo1();',
 671         '  };',
 672         '};'],
 673        'Did not process Interface Interface(NotEvent)'),
 674       ('invalid_idl_9.idl',
 675        ['//',
 676         'namespace test {',
 677         '  interface {',
 678         '    static void function1();',
 679         '  };',
 680         '};'],
 681        'Interface missing name.'),
 682       ]
 683
 684     input_api.files = [MockFile(filename, contents)
 685                        for (filename, contents, _) in test_data]
 686
 687     for (filename, _, expected_error) in test_data:
 688       actual_error = PRESUBMIT._GetIDLParseError(input_api, filename)
 689       self.assertTrue(expected_error in str(actual_error),
 690                       "'%s' not found in '%s'" % (expected_error, actual_error))
 691
 692
 693 class TryServerMasterTest(unittest.TestCase):
 694   def testTryServerMasters(self):
 695     bots = {
 696         'tryserver.chromium.mac': [
 697             'ios_dbg_simulator',
 698             'ios_rel_device',
 699             'ios_rel_device_ninja',
 700             'mac_asan',
 701             'mac_asan_64',
 702             'mac_chromium_compile_dbg',
 703             'mac_chromium_compile_rel',
 704             'mac_chromium_dbg',
 705             'mac_chromium_rel',
 706             'mac_nacl_sdk',
 707             'mac_nacl_sdk_build',
 708             'mac_rel_naclmore',
 709             'mac_valgrind',
 710             'mac_x64_rel',
 711             'mac_xcodebuild',
 712         ],
 713         'tryserver.chromium.linux': [
 714             'android_aosp',
 715             'android_chromium_gn_compile_dbg',
 716             'android_chromium_gn_compile_rel',
 717             'android_clang_dbg',
 718             'android_dbg',
 719             'android_dbg_recipe',
 720             'android_dbg_triggered_tests',
 721             'android_dbg_triggered_tests_recipe',
 722             'android_fyi_dbg',
 723             'android_fyi_dbg_triggered_tests',
 724             'android_rel',
 725             'android_rel_triggered_tests',
 726             'android_x86_dbg',
 727             'blink_android_compile_dbg',
 728             'blink_android_compile_rel',
 729             'blink_presubmit',
 730             'chromium_presubmit',
 731             'linux_arm_cross_compile',
 732             'linux_arm_tester',
 733             'linux_chromeos_asan',
 734             'linux_chromeos_browser_asan',
 735             'linux_chromeos_valgrind',
 736             'linux_chromium_chromeos_dbg',
 737             'linux_chromium_chromeos_rel',
 738             'linux_chromium_compile_dbg',
 739             'linux_chromium_compile_rel',
 740             'linux_chromium_dbg',
 741             'linux_chromium_gn_dbg',
 742             'linux_chromium_gn_rel',
 743             'linux_chromium_rel',
 744             'linux_chromium_trusty32_dbg',
 745             'linux_chromium_trusty32_rel',
 746             'linux_chromium_trusty_dbg',
 747             'linux_chromium_trusty_rel',
 748             'linux_clang_tsan',
 749             'linux_ecs_ozone',
 750             'linux_layout',
 751             'linux_layout_asan',
 752             'linux_layout_rel',
 753             'linux_layout_rel_32',
 754             'linux_nacl_sdk',
 755             'linux_nacl_sdk_bionic',
 756             'linux_nacl_sdk_bionic_build',
 757             'linux_nacl_sdk_build',
 758             'linux_redux',
 759             'linux_rel_naclmore',
 760             'linux_rel_precise32',
 761             'linux_valgrind',
 762             'tools_build_presubmit',
 763         ],
 764         'tryserver.chromium.win': [
 765             'win8_aura',
 766             'win8_chromium_dbg',
 767             'win8_chromium_rel',
 768             'win_chromium_compile_dbg',
 769             'win_chromium_compile_rel',
 770             'win_chromium_dbg',
 771             'win_chromium_rel',
 772             'win_chromium_rel',
 773             'win_chromium_x64_dbg',
 774             'win_chromium_x64_rel',
 775             'win_drmemory',
 776             'win_nacl_sdk',
 777             'win_nacl_sdk_build',
 778             'win_rel_naclmore',
 779          ],
 780     }
 781     for master, bots in bots.iteritems():
 782       for bot in bots:
 783         self.assertEqual(master, PRESUBMIT.GetTryServerMasterForBot(bot),
 784                          'bot=%s: expected %s, computed %s' % (
 785             bot, master, PRESUBMIT.GetTryServerMasterForBot(bot)))
 786
 787
 788 class UserMetricsActionTest(unittest.TestCase):
 789   def testUserMetricsActionInActions(self):
 790     input_api = MockInputApi()
 791     file_with_user_action = 'file_with_user_action.cc'
 792     contents_with_user_action = [
 793       'base::UserMetricsAction("AboutChrome")'
 794     ]
 795
 796     input_api.files = [MockFile(file_with_user_action,
 797                                 contents_with_user_action)]
 798
 799     self.assertEqual(
 800       [], PRESUBMIT._CheckUserActionUpdate(input_api, MockOutputApi()))
 801
 802
 803   def testUserMetricsActionNotAddedToActions(self):
 804     input_api = MockInputApi()
 805     file_with_user_action = 'file_with_user_action.cc'
 806     contents_with_user_action = [
 807       'base::UserMetricsAction("NotInActionsXml")'
 808     ]
 809
 810     input_api.files = [MockFile(file_with_user_action,
 811                                 contents_with_user_action)]
 812
 813     output = PRESUBMIT._CheckUserActionUpdate(input_api, MockOutputApi())
 814     self.assertEqual(
 815       ('File %s line %d: %s is missing in '
 816        'tools/metrics/actions/actions.xml. Please run '
 817        'tools/metrics/actions/extract_actions.py to update.'
 818        % (file_with_user_action, 1, 'NotInActionsXml')),
 819       output[0].message)
 820
 821
 822 class LogUsageTest(unittest.TestCase):
 823
 824   def testCheckAndroidCrLogUsage(self):
 825     mock_input_api = MockInputApi()
 826     mock_output_api = MockOutputApi()
 827
 828     mock_input_api.files = [
 829       MockAffectedFile('RandomStuff.java', [
 830         'random stuff'
 831       ]),
 832       MockAffectedFile('HasAndroidLog.java', [
 833         'import android.util.Log;',
 834         'some random stuff',
 835         'Log.d("TAG", "foo");',
 836       ]),
 837       MockAffectedFile('HasExplicitUtilLog.java', [
 838         'some random stuff',
 839         'android.util.Log.d("TAG", "foo");',
 840       ]),
 841       MockAffectedFile('IsInBasePackage.java', [
 842         'package org.chromium.base;',
 843         'private static final String TAG = "cr_Foo";',
 844         'Log.d(TAG, "foo");',
 845       ]),
 846       MockAffectedFile('IsInBasePackageButImportsLog.java', [
 847         'package org.chromium.base;',
 848         'import android.util.Log;',
 849         'private static final String TAG = "cr_Foo";',
 850         'Log.d(TAG, "foo");',
 851       ]),
 852       MockAffectedFile('HasBothLog.java', [
 853         'import org.chromium.base.Log;',
 854         'some random stuff',
 855         'private static final String TAG = "cr_Foo";',
 856         'Log.d(TAG, "foo");',
 857         'android.util.Log.d("TAG", "foo");',
 858       ]),
 859       MockAffectedFile('HasCorrectTag.java', [
 860         'import org.chromium.base.Log;',
 861         'some random stuff',
 862         'private static final String TAG = "cr_Foo";',
 863         'Log.d(TAG, "foo");',
 864       ]),
 865       MockAffectedFile('HasOldTag.java', [
 866         'import org.chromium.base.Log;',
 867         'some random stuff',
 868         'private static final String TAG = "cr.Foo";',
 869         'Log.d(TAG, "foo");',
 870       ]),
 871       MockAffectedFile('HasDottedTag.java', [
 872         'import org.chromium.base.Log;',
 873         'some random stuff',
 874         'private static final String TAG = "cr_foo.bar";',
 875         'Log.d(TAG, "foo");',
 876       ]),
 877       MockAffectedFile('HasNoTagDecl.java', [
 878         'import org.chromium.base.Log;',
 879         'some random stuff',
 880         'Log.d(TAG, "foo");',
 881       ]),
 882       MockAffectedFile('HasIncorrectTagDecl.java', [
 883         'import org.chromium.base.Log;',
 884         'private static final String TAHG = "cr_Foo";',
 885         'some random stuff',
 886         'Log.d(TAG, "foo");',
 887       ]),
 888       MockAffectedFile('HasInlineTag.java', [
 889         'import org.chromium.base.Log;',
 890         'some random stuff',
 891         'private static final String TAG = "cr_Foo";',
 892         'Log.d("TAG", "foo");',
 893       ]),
 894       MockAffectedFile('HasUnprefixedTag.java', [
 895         'import org.chromium.base.Log;',
 896         'some random stuff',
 897         'private static final String TAG = "rubbish";',
 898         'Log.d(TAG, "foo");',
 899       ]),
 900       MockAffectedFile('HasTooLongTag.java', [
 901         'import org.chromium.base.Log;',
 902         'some random stuff',
 903         'private static final String TAG = "21_charachers_long___";',
 904         'Log.d(TAG, "foo");',
 905       ]),
 906     ]
 907
 908     msgs = PRESUBMIT._CheckAndroidCrLogUsage(
 909         mock_input_api, mock_output_api)
 910
 911     self.assertEqual(5, len(msgs),
 912                      'Expected %d items, found %d: %s' % (5, len(msgs), msgs))
 913
 914     # Declaration format
 915     nb = len(msgs[0].items)
 916     self.assertEqual(2, nb,
 917                      'Expected %d items, found %d: %s' % (2, nb, msgs[0].items))
 918     self.assertTrue('HasNoTagDecl.java' in msgs[0].items)
 919     self.assertTrue('HasIncorrectTagDecl.java' in msgs[0].items)
 920
 921     # Tag length
 922     nb = len(msgs[1].items)
 923     self.assertEqual(1, nb,
 924                      'Expected %d items, found %d: %s' % (1, nb, msgs[1].items))
 925     self.assertTrue('HasTooLongTag.java' in msgs[1].items)
 926
 927     # Tag must be a variable named TAG
 928     nb = len(msgs[2].items)
 929     self.assertEqual(1, nb,
 930                      'Expected %d items, found %d: %s' % (1, nb, msgs[2].items))
 931     self.assertTrue('HasInlineTag.java:4' in msgs[2].items)
 932
 933     # Util Log usage
 934     nb = len(msgs[3].items)
 935     self.assertEqual(2, nb,
 936                      'Expected %d items, found %d: %s' % (2, nb, msgs[3].items))
 937     self.assertTrue('HasAndroidLog.java:3' in msgs[3].items)
 938     self.assertTrue('IsInBasePackageButImportsLog.java:4' in msgs[3].items)
 939
 940     # Tag must not contain
 941     nb = len(msgs[4].items)
 942     self.assertEqual(2, nb,
 943                      'Expected %d items, found %d: %s' % (2, nb, msgs[4].items))
 944     self.assertTrue('HasDottedTag.java' in msgs[4].items)
 945     self.assertTrue('HasOldTag.java' in msgs[4].items)
 946
 947
 948 if __name__ == '__main__':
 949   unittest.main()