Add ScopedTempDir - a class that manages the lifetime of a temporary director...

base/scoped_temp_dir_unittest.cc

+// Copyright (c) 2009 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/file_util.h"
+#include "base/scoped_temp_dir.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(ScopedTempDir, FullPath) {
+  FilePath test_path;
+  file_util::CreateNewTempDirectory(FILE_PATH_LITERAL("scoped_temp_dir"),
+                                    &test_path);
+
+  // Against an existing dir, it should get destroyed when leaving scope.
+  EXPECT_TRUE(file_util::DirectoryExists(test_path));
+  {
+    ScopedTempDir dir;
+    EXPECT_TRUE(dir.Set(test_path));
+    EXPECT_TRUE(dir.IsValid());
+  }
+  EXPECT_FALSE(file_util::DirectoryExists(test_path));
+
+  {
+    ScopedTempDir dir;
+    dir.Set(test_path);
+    // Now the dir doesn't exist, so ensure that it gets created.
+    EXPECT_TRUE(file_util::DirectoryExists(test_path));
+    // When we call Release(), it shouldn't get destroyed when leaving scope.
+    FilePath path = dir.Take();
+    EXPECT_EQ(path.value(), test_path.value());
+    EXPECT_FALSE(dir.IsValid());
+  }
+  EXPECT_TRUE(file_util::DirectoryExists(test_path));
+
+  // Clean up.
+  {
+    ScopedTempDir dir;
+    dir.Set(test_path);
+  }
+  EXPECT_FALSE(file_util::DirectoryExists(test_path));
+}
+
+TEST(ScopedTempDir, TempDir) {
+  // In this case, just verify that a directory was created and that it's a
+  // child of TempDir.
+  FilePath test_path;
+  {
+    ScopedTempDir dir;
+    EXPECT_TRUE(dir.CreateUniqueTempDir());
+    test_path = dir.path();
+    EXPECT_TRUE(file_util::DirectoryExists(test_path));
+    FilePath tmp_dir;
+    EXPECT_TRUE(file_util::GetTempDir(&tmp_dir));
+    EXPECT_TRUE(test_path.value().find(tmp_dir.value()) != std::string::npos);
+  }
+  EXPECT_FALSE(file_util::DirectoryExists(test_path));
+}
+