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/*
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under both the BSD-style license (found in the
* LICENSE file in the root directory of this source tree) and the GPLv2 (found
* in the COPYING file in the root directory of this source tree).
*/
#include "utils/Range.h"
#include <gtest/gtest.h>
#include <string>
using namespace pzstd;
// Range is directly copied from folly.
// Just some sanity tests to make sure everything seems to work.
TEST(Range, Constructors) {
StringPiece empty;
EXPECT_TRUE(empty.empty());
EXPECT_EQ(0, empty.size());
std::string str = "hello";
{
Range<std::string::const_iterator> piece(str.begin(), str.end());
EXPECT_EQ(5, piece.size());
EXPECT_EQ('h', *piece.data());
EXPECT_EQ('o', *(piece.end() - 1));
}
{
StringPiece piece(str.data(), str.size());
EXPECT_EQ(5, piece.size());
EXPECT_EQ('h', *piece.data());
EXPECT_EQ('o', *(piece.end() - 1));
}
{
StringPiece piece(str);
EXPECT_EQ(5, piece.size());
EXPECT_EQ('h', *piece.data());
EXPECT_EQ('o', *(piece.end() - 1));
}
{
StringPiece piece(str.c_str());
EXPECT_EQ(5, piece.size());
EXPECT_EQ('h', *piece.data());
EXPECT_EQ('o', *(piece.end() - 1));
}
}
TEST(Range, Modifiers) {
StringPiece range("hello world");
ASSERT_EQ(11, range.size());
{
auto hello = range.subpiece(0, 5);
EXPECT_EQ(5, hello.size());
EXPECT_EQ('h', *hello.data());
EXPECT_EQ('o', *(hello.end() - 1));
}
{
auto hello = range;
hello.subtract(6);
EXPECT_EQ(5, hello.size());
EXPECT_EQ('h', *hello.data());
EXPECT_EQ('o', *(hello.end() - 1));
}
{
auto world = range;
world.advance(6);
EXPECT_EQ(5, world.size());
EXPECT_EQ('w', *world.data());
EXPECT_EQ('d', *(world.end() - 1));
}
std::string expected = "hello world";
EXPECT_EQ(expected, std::string(range.begin(), range.end()));
EXPECT_EQ(expected, std::string(range.data(), range.size()));
}
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