[Zucchini] Move Zucchini from /chrome/installer/ to /components/.

(Use "git log --follow" to see older revisions of files).

/components/ is the most logical place to put Zucchini, which only
depends on /base and /testing/gtest. This move also enables Zucchini to
be used by the Component Updater. Details:
- Move all files; run the following to change deps and guards:
  sed 's/chrome\/installer/components/' *.cc *.h -i
  sed 's/CHROME_INSTALLER/COMPONENTS/' *.cc *.h -i
  - Sorting works out pretty well!
- Change all 'chrome/installer/zucchini' to 'components/zucchini'
  throughout other parts of the repo; sort if necessary.
- Fix 6 'git cl lint' errors.
- Change 1 Bind() usage to BindRepeated().
- Update OWNER.

Bug: 729154
Change-Id: I50c5a7d411ea85f707b5994ab319dfb2a1acccf7
Reviewed-on: https://chromium-review.googlesource.com/954923
Reviewed-by: Greg Thompson <grt@chromium.org>
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Reviewed-by: Samuel Huang <huangs@chromium.org>
Commit-Queue: Samuel Huang <huangs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#542857}
NOKEYCHECK=True
GitOrigin-RevId: 577ef6c435e8d43be6e3e60ccbcbd1881780f4ec

1 files changed, 61 insertions, 0 deletions

diff --git a/mapped_file_unittest.cc b/mapped_file_unittest.cc
new file mode 100644
index 0000000..e3ee6dc
--- /dev/null
+++ b/mapped_file_unittest.cc
@@ -0,0 +1,61 @@
+// Copyright 2017 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 "components/zucchini/mapped_file.h"
+
+#include <utility>
+
+#include "base/files/file.h"
+#include "base/files/file_path.h"
+#include "base/files/file_util.h"
+#include "base/files/scoped_temp_dir.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace zucchini {
+
+class MappedFileWriterTest : public testing::Test {
+ protected:
+  MappedFileWriterTest() = default;
+  void SetUp() override {
+    ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
+    file_path_ = temp_dir_.GetPath().AppendASCII("test-file");
+  }
+
+  base::FilePath file_path_;
+
+ private:
+  base::ScopedTempDir temp_dir_;
+};
+
+TEST_F(MappedFileWriterTest, Keep) {
+  EXPECT_FALSE(base::PathExists(file_path_));
+  {
+    using base::File;
+    File file(file_path_, File::FLAG_CREATE_ALWAYS | File::FLAG_READ |
+                              File::FLAG_WRITE | File::FLAG_SHARE_DELETE |
+                              File::FLAG_CAN_DELETE_ON_CLOSE);
+    MappedFileWriter file_writer(file_path_, std::move(file), 10);
+    EXPECT_FALSE(file_writer.HasError());
+    EXPECT_TRUE(file_writer.Keep());
+    EXPECT_FALSE(file_writer.HasError());
+    EXPECT_TRUE(file_writer.error().empty());
+  }
+  EXPECT_TRUE(base::PathExists(file_path_));
+}
+
+TEST_F(MappedFileWriterTest, DeleteOnClose) {
+  EXPECT_FALSE(base::PathExists(file_path_));
+  {
+    using base::File;
+    File file(file_path_, File::FLAG_CREATE_ALWAYS | File::FLAG_READ |
+                              File::FLAG_WRITE | File::FLAG_SHARE_DELETE |
+                              File::FLAG_CAN_DELETE_ON_CLOSE);
+    MappedFileWriter file_writer(file_path_, std::move(file), 10);
+    EXPECT_FALSE(file_writer.HasError());
+    EXPECT_TRUE(file_writer.error().empty());
+  }
+  EXPECT_FALSE(base::PathExists(file_path_));
+}
+
+}  // namespace zucchini