// Copyright 2016 The Chromium OS Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "bsdiff/bspatch.h"
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#include <unistd.h>
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#include <gtest/gtest.h>
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#include "bsdiff/test_utils.h"
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namespace bsdiff {
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class BspatchTest : public testing::Test {
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protected:
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BspatchTest()
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: old_file_("bsdiff_oldfile.XXXXXX"),
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new_file_("bsdiff_newfile.XXXXXX") {}
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test_utils::ScopedTempFile old_file_;
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test_utils::ScopedTempFile new_file_;
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};
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TEST_F(BspatchTest, IsOverlapping) {
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const char* old_filename = old_file_.c_str();
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const char* new_filename = new_file_.c_str();
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EXPECT_FALSE(IsOverlapping(old_filename, "does-not-exist", {}, {}));
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EXPECT_FALSE(IsOverlapping(old_filename, new_filename, {}, {}));
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EXPECT_EQ(0, unlink(new_filename));
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EXPECT_EQ(0, symlink(old_filename, new_filename));
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EXPECT_TRUE(IsOverlapping(old_filename, new_filename, {}, {}));
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EXPECT_TRUE(IsOverlapping(old_filename, old_filename, {}, {}));
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EXPECT_FALSE(IsOverlapping(old_filename, old_filename, {{0, 1}}, {{1, 1}}));
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EXPECT_FALSE(IsOverlapping(old_filename, old_filename, {{2, 1}}, {{1, 1}}));
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EXPECT_TRUE(IsOverlapping(old_filename, old_filename, {{0, 1}}, {{0, 1}}));
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EXPECT_TRUE(IsOverlapping(old_filename, old_filename, {{0, 4}}, {{2, 1}}));
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EXPECT_TRUE(IsOverlapping(old_filename, old_filename, {{1, 1}}, {{0, 2}}));
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EXPECT_TRUE(IsOverlapping(old_filename, old_filename, {{3, 2}}, {{2, 2}}));
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}
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} // namespace bsdiff
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