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// Copyright 2016 The Chromium OS 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 "bsdiff/bspatch.h"
#include <unistd.h>
#include <gtest/gtest.h>
#include "bsdiff/test_utils.h"
namespace bsdiff {
class BspatchTest : public testing::Test {
protected:
BspatchTest()
: old_file_("bsdiff_oldfile.XXXXXX"),
new_file_("bsdiff_newfile.XXXXXX") {}
test_utils::ScopedTempFile old_file_;
test_utils::ScopedTempFile new_file_;
};
TEST_F(BspatchTest, IsOverlapping) {
const char* old_filename = old_file_.c_str();
const char* new_filename = new_file_.c_str();
EXPECT_FALSE(IsOverlapping(old_filename, "does-not-exist", {}, {}));
EXPECT_FALSE(IsOverlapping(old_filename, new_filename, {}, {}));
EXPECT_EQ(0, unlink(new_filename));
EXPECT_EQ(0, symlink(old_filename, new_filename));
EXPECT_TRUE(IsOverlapping(old_filename, new_filename, {}, {}));
EXPECT_TRUE(IsOverlapping(old_filename, old_filename, {}, {}));
EXPECT_FALSE(IsOverlapping(old_filename, old_filename, {{0, 1}}, {{1, 1}}));
EXPECT_FALSE(IsOverlapping(old_filename, old_filename, {{2, 1}}, {{1, 1}}));
EXPECT_TRUE(IsOverlapping(old_filename, old_filename, {{0, 1}}, {{0, 1}}));
EXPECT_TRUE(IsOverlapping(old_filename, old_filename, {{0, 4}}, {{2, 1}}));
EXPECT_TRUE(IsOverlapping(old_filename, old_filename, {{1, 1}}, {{0, 2}}));
EXPECT_TRUE(IsOverlapping(old_filename, old_filename, {{3, 2}}, {{2, 2}}));
}
} // namespace bsdiff
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