tools/gn/filesystem_utils_unittest.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/files/file_path.h"
   6 #include "base/strings/string_util.h"
   7 #include "base/strings/utf_string_conversions.h"
   8 #include "build/build_config.h"
   9 #include "testing/gtest/include/gtest/gtest.h"
  10 #include "tools/gn/filesystem_utils.h"
  11 #include "tools/gn/target.h"
  12
  13 TEST(FilesystemUtils, FileExtensionOffset) {
  14   EXPECT_EQ(std::string::npos, FindExtensionOffset(""));
  15   EXPECT_EQ(std::string::npos, FindExtensionOffset("foo/bar/baz"));
  16   EXPECT_EQ(4u, FindExtensionOffset("foo."));
  17   EXPECT_EQ(4u, FindExtensionOffset("f.o.bar"));
  18   EXPECT_EQ(std::string::npos, FindExtensionOffset("foo.bar/"));
  19   EXPECT_EQ(std::string::npos, FindExtensionOffset("foo.bar/baz"));
  20 }
  21
  22 TEST(FilesystemUtils, FindExtension) {
  23   std::string input;
  24   EXPECT_EQ("", FindExtension(&input).as_string());
  25   input = "foo/bar/baz";
  26   EXPECT_EQ("", FindExtension(&input).as_string());
  27   input = "foo.";
  28   EXPECT_EQ("", FindExtension(&input).as_string());
  29   input = "f.o.bar";
  30   EXPECT_EQ("bar", FindExtension(&input).as_string());
  31   input = "foo.bar/";
  32   EXPECT_EQ("", FindExtension(&input).as_string());
  33   input = "foo.bar/baz";
  34   EXPECT_EQ("", FindExtension(&input).as_string());
  35 }
  36
  37 TEST(FilesystemUtils, FindFilenameOffset) {
  38   EXPECT_EQ(0u, FindFilenameOffset(""));
  39   EXPECT_EQ(0u, FindFilenameOffset("foo"));
  40   EXPECT_EQ(4u, FindFilenameOffset("foo/"));
  41   EXPECT_EQ(4u, FindFilenameOffset("foo/bar"));
  42 }
  43
  44 TEST(FilesystemUtils, RemoveFilename) {
  45   std::string s;
  46
  47   RemoveFilename(&s);
  48   EXPECT_STREQ("", s.c_str());
  49
  50   s = "foo";
  51   RemoveFilename(&s);
  52   EXPECT_STREQ("", s.c_str());
  53
  54   s = "/";
  55   RemoveFilename(&s);
  56   EXPECT_STREQ("/", s.c_str());
  57
  58   s = "foo/bar";
  59   RemoveFilename(&s);
  60   EXPECT_STREQ("foo/", s.c_str());
  61
  62   s = "foo/bar/baz.cc";
  63   RemoveFilename(&s);
  64   EXPECT_STREQ("foo/bar/", s.c_str());
  65 }
  66
  67 TEST(FilesystemUtils, FindDir) {
  68   std::string input;
  69   EXPECT_EQ("", FindDir(&input));
  70   input = "/";
  71   EXPECT_EQ("/", FindDir(&input));
  72   input = "foo/";
  73   EXPECT_EQ("foo/", FindDir(&input));
  74   input = "foo/bar/baz";
  75   EXPECT_EQ("foo/bar/", FindDir(&input));
  76 }
  77
  78 TEST(FilesystemUtils, FindLastDirComponent) {
  79   SourceDir empty;
  80   EXPECT_EQ("", FindLastDirComponent(empty));
  81
  82   SourceDir root("/");
  83   EXPECT_EQ("", FindLastDirComponent(root));
  84
  85   SourceDir srcroot("//");
  86   EXPECT_EQ("", FindLastDirComponent(srcroot));
  87
  88   SourceDir regular1("//foo/");
  89   EXPECT_EQ("foo", FindLastDirComponent(regular1));
  90
  91   SourceDir regular2("//foo/bar/");
  92   EXPECT_EQ("bar", FindLastDirComponent(regular2));
  93 }
  94
  95 TEST(FilesystemUtils, EnsureStringIsInOutputDir) {
  96   SourceDir output_dir("//out/Debug/");
  97
  98   // Some outside.
  99   Err err;
 100   EXPECT_FALSE(EnsureStringIsInOutputDir(output_dir, "//foo", nullptr, &err));
 101   EXPECT_TRUE(err.has_error());
 102   err = Err();
 103   EXPECT_FALSE(
 104       EnsureStringIsInOutputDir(output_dir, "//out/Debugit", nullptr, &err));
 105   EXPECT_TRUE(err.has_error());
 106
 107   // Some inside.
 108   err = Err();
 109   EXPECT_TRUE(
 110       EnsureStringIsInOutputDir(output_dir, "//out/Debug/", nullptr, &err));
 111   EXPECT_FALSE(err.has_error());
 112   EXPECT_TRUE(
 113       EnsureStringIsInOutputDir(output_dir, "//out/Debug/foo", nullptr, &err));
 114   EXPECT_FALSE(err.has_error());
 115
 116   // Pattern but no template expansions are allowed.
 117   EXPECT_FALSE(EnsureStringIsInOutputDir(output_dir, "{{source_gen_dir}}",
 118                                          nullptr, &err));
 119   EXPECT_TRUE(err.has_error());
 120 }
 121
 122 TEST(FilesystemUtils, IsPathAbsolute) {
 123   EXPECT_TRUE(IsPathAbsolute("/foo/bar"));
 124   EXPECT_TRUE(IsPathAbsolute("/"));
 125   EXPECT_FALSE(IsPathAbsolute(""));
 126   EXPECT_FALSE(IsPathAbsolute("//"));
 127   EXPECT_FALSE(IsPathAbsolute("//foo/bar"));
 128
 129 #if defined(OS_WIN)
 130   EXPECT_TRUE(IsPathAbsolute("C:/foo"));
 131   EXPECT_TRUE(IsPathAbsolute("C:/"));
 132   EXPECT_TRUE(IsPathAbsolute("C:\\foo"));
 133   EXPECT_TRUE(IsPathAbsolute("C:\\"));
 134   EXPECT_TRUE(IsPathAbsolute("/C:/foo"));
 135   EXPECT_TRUE(IsPathAbsolute("/C:\\foo"));
 136 #endif
 137 }
 138
 139 TEST(FilesystemUtils, MakeAbsolutePathRelativeIfPossible) {
 140   std::string dest;
 141
 142 #if defined(OS_WIN)
 143   EXPECT_TRUE(MakeAbsolutePathRelativeIfPossible("C:\\base", "C:\\base\\foo",
 144                                                  &dest));
 145   EXPECT_EQ("//foo", dest);
 146   EXPECT_TRUE(MakeAbsolutePathRelativeIfPossible("C:\\base", "/C:/base/foo",
 147                                                  &dest));
 148   EXPECT_EQ("//foo", dest);
 149   EXPECT_TRUE(MakeAbsolutePathRelativeIfPossible("c:\\base", "C:\\base\\foo\\",
 150                                                  &dest));
 151   EXPECT_EQ("//foo\\", dest);
 152
 153   EXPECT_FALSE(MakeAbsolutePathRelativeIfPossible("C:\\base", "C:\\ba", &dest));
 154   EXPECT_FALSE(MakeAbsolutePathRelativeIfPossible("C:\\base",
 155                                                   "C:\\/notbase/foo",
 156                                                   &dest));
 157 #else
 158
 159   EXPECT_TRUE(MakeAbsolutePathRelativeIfPossible("/base", "/base/foo/", &dest));
 160   EXPECT_EQ("//foo/", dest);
 161   EXPECT_TRUE(MakeAbsolutePathRelativeIfPossible("/base", "/base/foo", &dest));
 162   EXPECT_EQ("//foo", dest);
 163   EXPECT_TRUE(MakeAbsolutePathRelativeIfPossible("/base/", "/base/foo/",
 164                                                  &dest));
 165   EXPECT_EQ("//foo/", dest);
 166
 167   EXPECT_FALSE(MakeAbsolutePathRelativeIfPossible("/base", "/ba", &dest));
 168   EXPECT_FALSE(MakeAbsolutePathRelativeIfPossible("/base", "/notbase/foo",
 169                                                   &dest));
 170 #endif
 171 }
 172
 173 TEST(FilesystemUtils, NormalizePath) {
 174   std::string input;
 175
 176   NormalizePath(&input);
 177   EXPECT_EQ("", input);
 178
 179   input = "foo/bar.txt";
 180   NormalizePath(&input);
 181   EXPECT_EQ("foo/bar.txt", input);
 182
 183   input = ".";
 184   NormalizePath(&input);
 185   EXPECT_EQ("", input);
 186
 187   input = "..";
 188   NormalizePath(&input);
 189   EXPECT_EQ("..", input);
 190
 191   input = "foo//bar";
 192   NormalizePath(&input);
 193   EXPECT_EQ("foo/bar", input);
 194
 195   input = "//foo";
 196   NormalizePath(&input);
 197   EXPECT_EQ("//foo", input);
 198
 199   input = "foo/..//bar";
 200   NormalizePath(&input);
 201   EXPECT_EQ("bar", input);
 202
 203   input = "foo/../../bar";
 204   NormalizePath(&input);
 205   EXPECT_EQ("../bar", input);
 206
 207   input = "/../foo";  // Don't go aboe the root dir.
 208   NormalizePath(&input);
 209   EXPECT_EQ("/foo", input);
 210
 211   input = "//../foo";  // Don't go above the root dir.
 212   NormalizePath(&input);
 213   EXPECT_EQ("//foo", input);
 214
 215   input = "../foo";
 216   NormalizePath(&input);
 217   EXPECT_EQ("../foo", input);
 218
 219   input = "..";
 220   NormalizePath(&input);
 221   EXPECT_EQ("..", input);
 222
 223   input = "./././.";
 224   NormalizePath(&input);
 225   EXPECT_EQ("", input);
 226
 227   input = "../../..";
 228   NormalizePath(&input);
 229   EXPECT_EQ("../../..", input);
 230
 231   input = "../";
 232   NormalizePath(&input);
 233   EXPECT_EQ("../", input);
 234
 235   // Backslash normalization.
 236   input = "foo\\..\\..\\bar";
 237   NormalizePath(&input);
 238   EXPECT_EQ("../bar", input);
 239 }
 240
 241 TEST(FilesystemUtils, RebasePath) {
 242   base::StringPiece source_root("/source/root");
 243
 244   // Degenerate case.
 245   EXPECT_EQ(".", RebasePath("//", SourceDir("//"), source_root));
 246   EXPECT_EQ(".", RebasePath("//foo/bar/", SourceDir("//foo/bar/"),
 247                             source_root));
 248
 249   // Going up the tree.
 250   EXPECT_EQ("../foo", RebasePath("//foo", SourceDir("//bar/"), source_root));
 251   EXPECT_EQ("../foo/", RebasePath("//foo/", SourceDir("//bar/"), source_root));
 252   EXPECT_EQ("../../foo", RebasePath("//foo", SourceDir("//bar/moo"),
 253                                     source_root));
 254   EXPECT_EQ("../../foo/", RebasePath("//foo/", SourceDir("//bar/moo"),
 255                                      source_root));
 256
 257   // Going down the tree.
 258   EXPECT_EQ("foo/bar", RebasePath("//foo/bar", SourceDir("//"), source_root));
 259   EXPECT_EQ("foo/bar/", RebasePath("//foo/bar/", SourceDir("//"),
 260                                    source_root));
 261
 262   // Going up and down the tree.
 263   EXPECT_EQ("../../foo/bar", RebasePath("//foo/bar", SourceDir("//a/b/"),
 264                                         source_root));
 265   EXPECT_EQ("../../foo/bar/", RebasePath("//foo/bar/", SourceDir("//a/b/"),
 266                                          source_root));
 267
 268   // Sharing prefix.
 269   EXPECT_EQ("foo", RebasePath("//a/foo", SourceDir("//a/"), source_root));
 270   EXPECT_EQ("foo/", RebasePath("//a/foo/", SourceDir("//a/"), source_root));
 271   EXPECT_EQ("foo", RebasePath("//a/b/foo", SourceDir("//a/b/"), source_root));
 272   EXPECT_EQ("foo/", RebasePath("//a/b/foo/", SourceDir("//a/b/"),
 273                                source_root));
 274   EXPECT_EQ("foo/bar", RebasePath("//a/b/foo/bar", SourceDir("//a/b/"),
 275                                   source_root));
 276   EXPECT_EQ("foo/bar/", RebasePath("//a/b/foo/bar/", SourceDir("//a/b/"),
 277                                    source_root));
 278
 279   // One could argue about this case. Since the input doesn't have a slash it
 280   // would normally not be treated like a directory and we'd go up, which is
 281   // simpler. However, since it matches the output directory's name, we could
 282   // potentially infer that it's the same and return "." for this.
 283   EXPECT_EQ("../bar", RebasePath("//foo/bar", SourceDir("//foo/bar/"),
 284                                  source_root));
 285
 286   // Check when only |input| is system-absolute
 287   EXPECT_EQ("foo", RebasePath("/source/root/foo", SourceDir("//"),
 288                               base::StringPiece("/source/root")));
 289   EXPECT_EQ("foo/", RebasePath("/source/root/foo/", SourceDir("//"),
 290                                base::StringPiece("/source/root")));
 291   EXPECT_EQ("../../builddir/Out/Debug",
 292             RebasePath("/builddir/Out/Debug", SourceDir("//"),
 293                        base::StringPiece("/source/root")));
 294   EXPECT_EQ("../../../builddir/Out/Debug",
 295             RebasePath("/builddir/Out/Debug", SourceDir("//"),
 296                        base::StringPiece("/source/root/foo")));
 297   EXPECT_EQ("../../../builddir/Out/Debug/",
 298             RebasePath("/builddir/Out/Debug/", SourceDir("//"),
 299                        base::StringPiece("/source/root/foo")));
 300   EXPECT_EQ("../../path/to/foo",
 301             RebasePath("/path/to/foo", SourceDir("//"),
 302                        base::StringPiece("/source/root")));
 303   EXPECT_EQ("../../../path/to/foo",
 304             RebasePath("/path/to/foo", SourceDir("//a"),
 305                        base::StringPiece("/source/root")));
 306   EXPECT_EQ("../../../../path/to/foo",
 307             RebasePath("/path/to/foo", SourceDir("//a/b"),
 308                        base::StringPiece("/source/root")));
 309
 310   // Check when only |dest_dir| is system-absolute.
 311   EXPECT_EQ(".",
 312             RebasePath("//", SourceDir("/source/root"),
 313                        base::StringPiece("/source/root")));
 314   EXPECT_EQ("foo",
 315             RebasePath("//foo", SourceDir("/source/root"),
 316                        base::StringPiece("/source/root")));
 317   EXPECT_EQ("../foo",
 318             RebasePath("//foo", SourceDir("/source/root/bar"),
 319                        base::StringPiece("/source/root")));
 320   EXPECT_EQ("../../../source/root/foo",
 321             RebasePath("//foo", SourceDir("/other/source/root"),
 322                        base::StringPiece("/source/root")));
 323   EXPECT_EQ("../../../../source/root/foo",
 324             RebasePath("//foo", SourceDir("/other/source/root/bar"),
 325                        base::StringPiece("/source/root")));
 326
 327   // Check when |input| and |dest_dir| are both system-absolute. Also,
 328   // in this case |source_root| is never used so set it to a dummy
 329   // value.
 330   EXPECT_EQ("foo",
 331             RebasePath("/source/root/foo", SourceDir("/source/root"),
 332                        base::StringPiece("/x/y/z")));
 333   EXPECT_EQ("foo/",
 334             RebasePath("/source/root/foo/", SourceDir("/source/root"),
 335                        base::StringPiece("/x/y/z")));
 336   EXPECT_EQ("../../builddir/Out/Debug",
 337             RebasePath("/builddir/Out/Debug",SourceDir("/source/root"),
 338                        base::StringPiece("/x/y/z")));
 339   EXPECT_EQ("../../../builddir/Out/Debug",
 340             RebasePath("/builddir/Out/Debug", SourceDir("/source/root/foo"),
 341                        base::StringPiece("/source/root/foo")));
 342   EXPECT_EQ("../../../builddir/Out/Debug/",
 343             RebasePath("/builddir/Out/Debug/", SourceDir("/source/root/foo"),
 344                        base::StringPiece("/source/root/foo")));
 345   EXPECT_EQ("../../path/to/foo",
 346             RebasePath("/path/to/foo", SourceDir("/source/root"),
 347                        base::StringPiece("/x/y/z")));
 348   EXPECT_EQ("../../../path/to/foo",
 349             RebasePath("/path/to/foo", SourceDir("/source/root/a"),
 350                        base::StringPiece("/x/y/z")));
 351   EXPECT_EQ("../../../../path/to/foo",
 352             RebasePath("/path/to/foo", SourceDir("/source/root/a/b"),
 353                        base::StringPiece("/x/y/z")));
 354
 355 }
 356
 357 TEST(FilesystemUtils, DirectoryWithNoLastSlash) {
 358   EXPECT_EQ("", DirectoryWithNoLastSlash(SourceDir()));
 359   EXPECT_EQ("/.", DirectoryWithNoLastSlash(SourceDir("/")));
 360   EXPECT_EQ("//.", DirectoryWithNoLastSlash(SourceDir("//")));
 361   EXPECT_EQ("//foo", DirectoryWithNoLastSlash(SourceDir("//foo/")));
 362   EXPECT_EQ("/bar", DirectoryWithNoLastSlash(SourceDir("/bar/")));
 363 }
 364
 365 TEST(FilesystemUtils, SourceDirForPath) {
 366 #if defined(OS_WIN)
 367   base::FilePath root(L"C:\\source\\foo\\");
 368   EXPECT_EQ("/C:/foo/bar/", SourceDirForPath(root,
 369             base::FilePath(L"C:\\foo\\bar")).value());
 370   EXPECT_EQ("/", SourceDirForPath(root,
 371             base::FilePath(L"/")).value());
 372   EXPECT_EQ("//", SourceDirForPath(root,
 373             base::FilePath(L"C:\\source\\foo")).value());
 374   EXPECT_EQ("//bar/", SourceDirForPath(root,
 375             base::FilePath(L"C:\\source\\foo\\bar\\")). value());
 376   EXPECT_EQ("//bar/baz/", SourceDirForPath(root,
 377             base::FilePath(L"C:\\source\\foo\\bar\\baz")).value());
 378
 379   // Should be case-and-slash-insensitive.
 380   EXPECT_EQ("//baR/", SourceDirForPath(root,
 381             base::FilePath(L"c:/SOURCE\\Foo/baR/")).value());
 382
 383   // Some "weird" Windows paths.
 384   EXPECT_EQ("/foo/bar/", SourceDirForPath(root,
 385             base::FilePath(L"/foo/bar/")).value());
 386   EXPECT_EQ("/C:/foo/bar/", SourceDirForPath(root,
 387             base::FilePath(L"C:foo/bar/")).value());
 388
 389   // Also allow absolute GN-style Windows paths.
 390   EXPECT_EQ("/C:/foo/bar/", SourceDirForPath(root,
 391             base::FilePath(L"/C:/foo/bar")).value());
 392   EXPECT_EQ("//bar/", SourceDirForPath(root,
 393             base::FilePath(L"/C:/source/foo/bar")).value());
 394
 395   // Empty source dir.
 396   base::FilePath empty;
 397   EXPECT_EQ(
 398       "/C:/source/foo/",
 399       SourceDirForPath(empty, base::FilePath(L"C:\\source\\foo")).value());
 400 #else
 401   base::FilePath root("/source/foo/");
 402   EXPECT_EQ("/foo/bar/", SourceDirForPath(root,
 403             base::FilePath("/foo/bar/")).value());
 404   EXPECT_EQ("/", SourceDirForPath(root,
 405             base::FilePath("/")).value());
 406   EXPECT_EQ("//", SourceDirForPath(root,
 407             base::FilePath("/source/foo")).value());
 408   EXPECT_EQ("//bar/", SourceDirForPath(root,
 409             base::FilePath("/source/foo/bar/")).value());
 410   EXPECT_EQ("//bar/baz/", SourceDirForPath(root,
 411             base::FilePath("/source/foo/bar/baz/")).value());
 412
 413   // Should be case-sensitive.
 414   EXPECT_EQ("/SOURCE/foo/bar/", SourceDirForPath(root,
 415             base::FilePath("/SOURCE/foo/bar/")).value());
 416
 417   // Empty source dir.
 418   base::FilePath empty;
 419   EXPECT_EQ("/source/foo/",
 420             SourceDirForPath(empty, base::FilePath("/source/foo")).value());
 421 #endif
 422 }
 423
 424 TEST(FilesystemUtils, GetToolchainDirs) {
 425   BuildSettings build_settings;
 426   build_settings.SetBuildDir(SourceDir("//out/Debug/"));
 427
 428   // The default toolchain.
 429   Settings default_settings(&build_settings, "");
 430   Label default_toolchain_label(SourceDir("//toolchain/"), "default");
 431   default_settings.set_toolchain_label(default_toolchain_label);
 432   default_settings.set_default_toolchain_label(default_toolchain_label);
 433
 434   // Default toolchain out dir.
 435   EXPECT_EQ("//out/Debug/",
 436             GetToolchainOutputDir(&default_settings).value());
 437   EXPECT_EQ("//out/Debug/",
 438             GetToolchainOutputDir(&build_settings, default_toolchain_label,
 439                                   true).value());
 440
 441   // Default toolchain gen dir.
 442   EXPECT_EQ("//out/Debug/gen/",
 443             GetToolchainGenDir(&default_settings).value());
 444   EXPECT_EQ("gen/",
 445             GetToolchainGenDirAsOutputFile(&default_settings).value());
 446   EXPECT_EQ("//out/Debug/gen/",
 447             GetToolchainGenDir(&build_settings, default_toolchain_label,
 448                                true).value());
 449
 450   // Check a secondary toolchain.
 451   Settings other_settings(&build_settings, "two/");
 452   Label other_toolchain_label(SourceDir("//toolchain/"), "two");
 453   default_settings.set_toolchain_label(other_toolchain_label);
 454   default_settings.set_default_toolchain_label(default_toolchain_label);
 455
 456   // Secondary toolchain out dir.
 457   EXPECT_EQ("//out/Debug/two/",
 458             GetToolchainOutputDir(&other_settings).value());
 459   EXPECT_EQ("//out/Debug/two/",
 460             GetToolchainOutputDir(&build_settings, other_toolchain_label,
 461                                   false).value());
 462
 463   // Secondary toolchain gen dir.
 464   EXPECT_EQ("//out/Debug/two/gen/",
 465             GetToolchainGenDir(&other_settings).value());
 466   EXPECT_EQ("two/gen/",
 467             GetToolchainGenDirAsOutputFile(&other_settings).value());
 468   EXPECT_EQ("//out/Debug/two/gen/",
 469             GetToolchainGenDir(&build_settings, other_toolchain_label,
 470                                false).value());
 471 }
 472
 473 TEST(FilesystemUtils, GetOutDirForSourceDir) {
 474   BuildSettings build_settings;
 475   build_settings.SetBuildDir(SourceDir("//out/Debug/"));
 476
 477   // Test the default toolchain.
 478   Settings default_settings(&build_settings, "");
 479   EXPECT_EQ("//out/Debug/obj/",
 480             GetOutputDirForSourceDir(
 481                 &default_settings, SourceDir("//")).value());
 482   EXPECT_EQ("obj/",
 483             GetOutputDirForSourceDirAsOutputFile(
 484                 &default_settings, SourceDir("//")).value());
 485
 486   EXPECT_EQ("//out/Debug/obj/foo/bar/",
 487             GetOutputDirForSourceDir(
 488                 &default_settings, SourceDir("//foo/bar/")).value());
 489   EXPECT_EQ("obj/foo/bar/",
 490             GetOutputDirForSourceDirAsOutputFile(
 491                 &default_settings, SourceDir("//foo/bar/")).value());
 492
 493   // Secondary toolchain.
 494   Settings other_settings(&build_settings, "two/");
 495   EXPECT_EQ("//out/Debug/two/obj/",
 496             GetOutputDirForSourceDir(
 497                 &other_settings, SourceDir("//")).value());
 498   EXPECT_EQ("two/obj/",
 499             GetOutputDirForSourceDirAsOutputFile(
 500                 &other_settings, SourceDir("//")).value());
 501
 502   EXPECT_EQ("//out/Debug/two/obj/foo/bar/",
 503             GetOutputDirForSourceDir(&other_settings,
 504                                      SourceDir("//foo/bar/")).value());
 505   EXPECT_EQ("two/obj/foo/bar/",
 506             GetOutputDirForSourceDirAsOutputFile(
 507                 &other_settings, SourceDir("//foo/bar/")).value());
 508
 509   // Absolute source path
 510   EXPECT_EQ("//out/Debug/obj/ABS_PATH/abs/",
 511             GetOutputDirForSourceDir(
 512                 &default_settings, SourceDir("/abs")).value());
 513   EXPECT_EQ("obj/ABS_PATH/abs/",
 514             GetOutputDirForSourceDirAsOutputFile(
 515                 &default_settings, SourceDir("/abs")).value());
 516 #if defined(OS_WIN)
 517   EXPECT_EQ("//out/Debug/obj/ABS_PATH/C/abs/",
 518             GetOutputDirForSourceDir(
 519                 &default_settings, SourceDir("/C:/abs")).value());
 520   EXPECT_EQ("obj/ABS_PATH/C/abs/",
 521             GetOutputDirForSourceDirAsOutputFile(
 522                 &default_settings, SourceDir("/C:/abs")).value());
 523 #endif
 524 }
 525
 526 TEST(FilesystemUtils, GetGenDirForSourceDir) {
 527   BuildSettings build_settings;
 528   build_settings.SetBuildDir(SourceDir("//out/Debug/"));
 529
 530   // Test the default toolchain.
 531   Settings default_settings(&build_settings, "");
 532   EXPECT_EQ("//out/Debug/gen/",
 533             GetGenDirForSourceDir(
 534                 &default_settings, SourceDir("//")).value());
 535   EXPECT_EQ("gen/",
 536             GetGenDirForSourceDirAsOutputFile(
 537                 &default_settings, SourceDir("//")).value());
 538
 539   EXPECT_EQ("//out/Debug/gen/foo/bar/",
 540             GetGenDirForSourceDir(
 541                 &default_settings, SourceDir("//foo/bar/")).value());
 542   EXPECT_EQ("gen/foo/bar/",
 543             GetGenDirForSourceDirAsOutputFile(
 544                 &default_settings, SourceDir("//foo/bar/")).value());
 545
 546   // Secondary toolchain.
 547   Settings other_settings(&build_settings, "two/");
 548   EXPECT_EQ("//out/Debug/two/gen/",
 549             GetGenDirForSourceDir(
 550                 &other_settings, SourceDir("//")).value());
 551   EXPECT_EQ("two/gen/",
 552             GetGenDirForSourceDirAsOutputFile(
 553                 &other_settings, SourceDir("//")).value());
 554
 555   EXPECT_EQ("//out/Debug/two/gen/foo/bar/",
 556             GetGenDirForSourceDir(
 557                 &other_settings, SourceDir("//foo/bar/")).value());
 558   EXPECT_EQ("two/gen/foo/bar/",
 559             GetGenDirForSourceDirAsOutputFile(
 560                 &other_settings, SourceDir("//foo/bar/")).value());
 561 }
 562
 563 TEST(FilesystemUtils, GetTargetDirs) {
 564   BuildSettings build_settings;
 565   build_settings.SetBuildDir(SourceDir("//out/Debug/"));
 566   Settings settings(&build_settings, "");
 567
 568   Target a(&settings, Label(SourceDir("//foo/bar/"), "baz"));
 569   EXPECT_EQ("//out/Debug/obj/foo/bar/", GetTargetOutputDir(&a).value());
 570   EXPECT_EQ("obj/foo/bar/", GetTargetOutputDirAsOutputFile(&a).value());
 571   EXPECT_EQ("//out/Debug/gen/foo/bar/", GetTargetGenDir(&a).value());
 572   EXPECT_EQ("gen/foo/bar/", GetTargetGenDirAsOutputFile(&a).value());
 573 }
 574
 575 // Tests handling of output dirs when build dir is the same as the root.
 576 TEST(FilesystemUtils, GetDirForEmptyBuildDir) {
 577   BuildSettings build_settings;
 578   build_settings.SetBuildDir(SourceDir("//"));
 579   Settings settings(&build_settings, "");
 580
 581   EXPECT_EQ("//", GetToolchainOutputDir(&settings).value());
 582   EXPECT_EQ("//gen/", GetToolchainGenDir(&settings).value());
 583   EXPECT_EQ("gen/", GetToolchainGenDirAsOutputFile(&settings).value());
 584   EXPECT_EQ("//obj/",
 585             GetOutputDirForSourceDir(&settings, SourceDir("//")).value());
 586   EXPECT_EQ("obj/",
 587             GetOutputDirForSourceDirAsOutputFile(
 588                 &settings, SourceDir("//")).value());
 589   EXPECT_EQ("gen/",
 590             GetGenDirForSourceDirAsOutputFile(
 591                 &settings, SourceDir("//")).value());
 592 }