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