Implement FilePath::Contains()

base/file_path_unittest.cc

 // Copyright (c) 2008 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.
 
+#include "base/basictypes.h"
 #include "base/file_path.h"
-
-#include "base/basictypes.h"
+#include "base/file_util.h"
+#include "base/path_service.h"
+#include "chrome/common/chrome_paths.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "testing/platform_test.h"
 
 // This macro helps avoid wrapped lines in the test structs.
 #define FPL(x) FILE_PATH_LITERAL(x)
 
 struct UnaryTestData {
   const FilePath::CharType* input;
   const FilePath::CharType* expected;
 };
 
 struct UnaryBooleanTestData {
   const FilePath::CharType* input;
   bool expected;
 };
 
 struct BinaryTestData {
   const FilePath::CharType* inputs[2];
   const FilePath::CharType* expected;
 };
 
-TEST(FilePathTest, DirName) {
+// file_util winds up using autoreleased objects on the Mac, so this needs
+// to be a PlatformTest
+class FilePathTest : public PlatformTest {
+ protected:
+  virtual void SetUp() {
+    PlatformTest::SetUp();
+  }
+  virtual void TearDown() {
+    PlatformTest::TearDown();
+  }
+};
+
+TEST_F(FilePathTest, DirName) {
   const struct UnaryTestData cases[] = {
     { FPL(""),              FPL(".") },
     { FPL("aa"),            FPL(".") },
     { FPL("/aa/bb"),        FPL("/aa") },
     { FPL("/aa/bb/"),       FPL("/aa") },
     { FPL("/aa/bb//"),      FPL("/aa") },
     { FPL("/aa/bb/ccc"),    FPL("/aa/bb") },
     { FPL("/aa"),           FPL("/") },
     { FPL("/aa/"),          FPL("/") },
     { FPL("/"),             FPL("/") },
@@ skipping 68 matching lines @@
   };
 
   for (size_t i = 0; i < arraysize(cases); ++i) {
     FilePath input(cases[i].input);
     FilePath observed = input.DirName();
     EXPECT_EQ(FilePath::StringType(cases[i].expected), observed.value()) <<
               "i: " << i << ", input: " << input.value();
   }
 }
 
-TEST(FilePathTest, BaseName) {
+TEST_F(FilePathTest, BaseName) {
   const struct UnaryTestData cases[] = {
     { FPL(""),              FPL("") },
     { FPL("aa"),            FPL("aa") },
     { FPL("/aa/bb"),        FPL("bb") },
     { FPL("/aa/bb/"),       FPL("bb") },
     { FPL("/aa/bb//"),      FPL("bb") },
     { FPL("/aa/bb/ccc"),    FPL("ccc") },
     { FPL("/aa"),           FPL("aa") },
     { FPL("/"),             FPL("/") },
     { FPL("//"),            FPL("//") },
@@ skipping 66 matching lines @@
   };
 
   for (size_t i = 0; i < arraysize(cases); ++i) {
     FilePath input(cases[i].input);
     FilePath observed = input.BaseName();
     EXPECT_EQ(FilePath::StringType(cases[i].expected), observed.value()) <<
               "i: " << i << ", input: " << input.value();
   }
 }
 
-TEST(FilePathTest, Append) {
+TEST_F(FilePathTest, Append) {
   const struct BinaryTestData cases[] = {
     { { FPL(""),           FPL("cc") }, FPL("cc") },
     { { FPL("."),          FPL("ff") }, FPL("ff") },
     { { FPL("/"),          FPL("cc") }, FPL("/cc") },
     { { FPL("/aa"),        FPL("") },   FPL("/aa") },
     { { FPL("/aa/"),       FPL("") },   FPL("/aa") },
     { { FPL("//aa"),       FPL("") },   FPL("//aa") },
     { { FPL("//aa/"),      FPL("") },   FPL("//aa") },
     { { FPL("//"),         FPL("aa") }, FPL("//aa") },
 #if defined(FILE_PATH_USES_DRIVE_LETTERS)
@@ skipping 60 matching lines @@
     FilePath::StringType leaf(cases[i].inputs[1]);
     FilePath observed_str = root.Append(leaf);
     EXPECT_EQ(FilePath::StringType(cases[i].expected), observed_str.value()) <<
               "i: " << i << ", root: " << root.value() << ", leaf: " << leaf;
     FilePath observed_path = root.Append(FilePath(leaf));
     EXPECT_EQ(FilePath::StringType(cases[i].expected), observed_path.value()) <<
               "i: " << i << ", root: " << root.value() << ", leaf: " << leaf;
   }
 }
 
-TEST(FilePathTest, IsAbsolute) {
+TEST_F(FilePathTest, IsAbsolute) {
   const struct UnaryBooleanTestData cases[] = {
     { FPL(""),       false },
     { FPL("a"),      false },
     { FPL("c:"),     false },
     { FPL("c:a"),    false },
     { FPL("a/b"),    false },
     { FPL("//"),     true },
     { FPL("//a"),    true },
     { FPL("c:a/b"),  false },
     { FPL("?:/a"),   false },
@@ skipping 46 matching lines @@
 #endif  // FILE_PATH_USES_WIN_SEPARATORS
   };
 
   for (size_t i = 0; i < arraysize(cases); ++i) {
     FilePath input(cases[i].input);
     bool observed = input.IsAbsolute();
     EXPECT_EQ(cases[i].expected, observed) <<
               "i: " << i << ", input: " << input.value();
   }
 }
+
+TEST_F(FilePathTest, Contains) {
+  FilePath data_dir;
+  ASSERT_TRUE(PathService::Get(base::DIR_TEMP, &data_dir));
+  data_dir = data_dir.Append(FILE_PATH_LITERAL("FilePathTest"));
+
+  // Create a fresh, empty copy of this directory.
+  file_util::Delete(data_dir, true);
+  file_util::CreateDirectory(data_dir);
+
+  FilePath foo(data_dir.Append(FILE_PATH_LITERAL("foo")));
+  FilePath bar(foo.Append(FILE_PATH_LITERAL("bar.txt")));
+  FilePath baz(data_dir.Append(FILE_PATH_LITERAL("baz.txt")));
+  FilePath foobar(data_dir.Append(FILE_PATH_LITERAL("foobar.txt")));
+
+  // Annoyingly, the directories must actually exist in order for realpath(),
+  // which Contains() relies on in posix, to work.
+  file_util::CreateDirectory(foo);
+  std::string data("hello");
+  file_util::WriteFile(bar.ToWStringHack(), data.c_str(), data.length());
+  file_util::WriteFile(baz.ToWStringHack(), data.c_str(), data.length());
+  file_util::WriteFile(foobar.ToWStringHack(), data.c_str(), data.length());
+
+  EXPECT_TRUE(foo.Contains(bar));
+  EXPECT_FALSE(foo.Contains(baz));
+  EXPECT_FALSE(foo.Contains(foobar));
+  EXPECT_FALSE(foo.Contains(foo));
+
+// Platform-specific concerns
+  FilePath foo_caps(data_dir.Append(FILE_PATH_LITERAL("FOO")));
+#if defined(OS_WIN)
+  EXPECT_TRUE(foo.Contains(foo_caps.Append(FILE_PATH_LITERAL("bar.txt"))));
+  EXPECT_TRUE(foo.Contains(
+      FilePath(foo.value() + FILE_PATH_LITERAL("/bar.txt"))));
+#elif defined(OS_LINUX)
+  EXPECT_FALSE(foo.Contains(foo_caps.Append(FILE_PATH_LITERAL("bar.txt"))));
+#else
+  // We can't really do this test on osx since the case-sensitivity of the
+  // filesystem is configurable.
+#endif
+
+  // Note: whether 
+}