base/path_service_unittest.cc

   1 // Copyright (c) 2010 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/path_service.h"
   6
   7 #include "base/basictypes.h"
   8 #include "base/file_util.h"
   9 #include "base/file_path.h"
  10 #if defined(OS_WIN)
  11 #include "base/win/windows_version.h"
  12 #endif
  13 #include "testing/gtest/include/gtest/gtest.h"
  14 #include "testing/gtest/include/gtest/gtest-spi.h"
  15 #include "testing/platform_test.h"
  16
  17 namespace {
  18
  19 // Returns true if PathService::Get returns true and sets the path parameter
  20 // to non-empty for the given PathService::DirType enumeration value.
  21 bool ReturnsValidPath(int dir_type) {
  22   FilePath path;
  23   bool result = PathService::Get(dir_type, &path);
  24 #if defined(OS_POSIX)
  25   // If chromium has never been started on this account, the cache path may not
  26   // exist.
  27   if (dir_type == base::DIR_CACHE)
  28     return result && !path.value().empty();
  29 #endif
  30   return result && !path.value().empty() && file_util::PathExists(path);
  31 }
  32
  33 #if defined(OS_WIN)
  34 // Function to test DIR_LOCAL_APP_DATA_LOW on Windows XP. Make sure it fails.
  35 bool ReturnsInvalidPath(int dir_type) {
  36   FilePath path;
  37   bool result = PathService::Get(base::DIR_LOCAL_APP_DATA_LOW, &path);
  38   return !result && path.empty();
  39 }
  40 #endif
  41
  42 }  // namespace
  43
  44 // On the Mac this winds up using some autoreleased objects, so we need to
  45 // be a PlatformTest.
  46 typedef PlatformTest PathServiceTest;
  47
  48 // Test that all PathService::Get calls return a value and a true result
  49 // in the development environment.  (This test was created because a few
  50 // later changes to Get broke the semantics of the function and yielded the
  51 // correct value while returning false.)
  52 TEST_F(PathServiceTest, Get) {
  53   for (int key = base::DIR_CURRENT; key < base::PATH_END; ++key) {
  54     EXPECT_PRED1(ReturnsValidPath, key);
  55   }
  56 #if defined(OS_WIN)
  57   for (int key = base::PATH_WIN_START + 1; key < base::PATH_WIN_END; ++key) {
  58     if (key == base::DIR_LOCAL_APP_DATA_LOW &&
  59         base::win::GetVersion() < base::win::VERSION_VISTA) {
  60       // DIR_LOCAL_APP_DATA_LOW is not supported prior Vista and is expected to
  61       // fail.
  62       EXPECT_TRUE(ReturnsInvalidPath(key)) << key;
  63     } else {
  64       EXPECT_TRUE(ReturnsValidPath(key)) << key;
  65     }
  66   }
  67 #elif defined(OS_MACOSX)
  68   for (int key = base::PATH_MAC_START + 1; key < base::PATH_MAC_END; ++key) {
  69       EXPECT_PRED1(ReturnsValidPath, key);
  70   }
  71 #endif
  72 }