Differential updates for components.

chrome/browser/component_updater/test/component_patcher_unittest.h

+// Copyright (c) 2012 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.
+
+#ifndef CHROME_BROWSER_COMPONENT_UPDATER_TEST_COMPONENT_PATCHER_UNITTEST_H_
+#define CHROME_BROWSER_COMPONENT_UPDATER_TEST_COMPONENT_PATCHER_UNITTEST_H_
+
+#include "base/files/file_path.h"
+#include "base/files/scoped_temp_dir.h"
+#include "base/memory/scoped_ptr.h"
+#include "chrome/common/chrome_paths.h"
+#include "courgette/courgette.h"
+#include "courgette/third_party/bsdiff.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class MockComponentPatcher;
+class ReadOnlyTestInstaller;
+
+const char binary_output_hash[] =
+    "599aba6d15a7da390621ef1bacb66601ed6aed04dadc1f9b445dcfe31296142a";
+
+// These constants are duplicated from chrome/installer/util/util_constants.h,
+// to avoid introducing a dependency from the unit tests to the installer.
+const int kCourgetteErrorOffset = 300;
+const int kBsdiffErrorOffset = 600;
+
+base::FilePath test_file(const char* file);
+
+class ComponentPatcherOperationTest : public testing::Test {
+ public:
+  explicit ComponentPatcherOperationTest();
+  virtual ~ComponentPatcherOperationTest();
+
+ protected:
+  base::ScopedTempDir input_dir_;
+  base::ScopedTempDir installed_dir_;
+  base::ScopedTempDir unpack_dir_;
+  scoped_ptr<MockComponentPatcher> patcher_;
+  scoped_ptr<ReadOnlyTestInstaller> installer_;
+};
+
+#endif  // CHROME_BROWSER_COMPONENT_UPDATER_TEST_COMPONENT_PATCHER_UNITTEST_H_