59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#include "td/utils/tests.h"
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#include "td/utils/buffer.h"
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#include "td/utils/Random.h"
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using namespace td;
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TEST(Buffer, buffer_builder) {
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{
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BufferBuilder builder;
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builder.append("b");
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builder.prepend("a");
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builder.append("c");
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ASSERT_EQ(builder.extract().as_slice(), "abc");
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}
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{
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BufferBuilder builder{"hello", 0, 0};
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ASSERT_EQ(builder.extract().as_slice(), "hello");
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}
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{
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BufferBuilder builder{"hello", 1, 1};
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builder.prepend("A ");
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builder.append(" B");
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ASSERT_EQ(builder.extract().as_slice(), "A hello B");
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}
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{
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std::string str = rand_string('a', 'z', 10000);
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auto splitted_str = rand_split(str);
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int l = Random::fast(0, static_cast<int32>(splitted_str.size() - 1));
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int r = l;
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BufferBuilder builder(splitted_str[l], 123, 1000);
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while (l != 0 || r != static_cast<int32>(splitted_str.size()) - 1) {
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if (l == 0 || (Random::fast(0, 1) == 1 && r != static_cast<int32>(splitted_str.size() - 1))) {
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r++;
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if (Random::fast(0, 1) == 1) {
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builder.append(splitted_str[r]);
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} else {
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builder.append(BufferSlice(splitted_str[r]));
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}
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} else {
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l--;
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if (Random::fast(0, 1) == 1) {
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builder.prepend(splitted_str[l]);
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} else {
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builder.prepend(BufferSlice(splitted_str[l]));
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}
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}
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}
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ASSERT_EQ(builder.extract().as_slice(), str);
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}
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}
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