024348d74b
Leverage gitattributes to enable auto convert end-of-line to LF when checking in. Convert already exist CRLF to LF by removing all files and checking out with new .gitattributes file. Except .gitattributes, all files are only modified at the end of line.
84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#include <algorithm>
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#include <cstring>
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#include <memory>
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#include <gtest/gtest.h>
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#include <time.h>
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#include "util/faststring.h"
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#include "util/random.h"
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namespace doris {
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class FaststringTest : public ::testing::Test {};
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void RandomString(void* dest, size_t n, doris::Random* rng) {
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size_t i = 0;
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uint32_t random = rng->Next();
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char* cdest = static_cast<char*>(dest);
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static const size_t sz = sizeof(random);
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if (n >= sz) {
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for (i = 0; i <= n - sz; i += sz) {
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memcpy(&cdest[i], &random, sizeof(random));
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random = rng->Next();
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}
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}
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memcpy(cdest + i, &random, n - i);
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}
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TEST_F(FaststringTest, TestShrinkToFit_Empty) {
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faststring s;
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s.shrink_to_fit();
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ASSERT_EQ(faststring::kInitialCapacity, s.capacity());
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}
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// Test that, if the string contents is shorter than the initial capacity
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// of the faststring, shrink_to_fit() leaves the string in the built-in
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// array.
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TEST_F(FaststringTest, TestShrinkToFit_SmallerThanInitialCapacity) {
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faststring s;
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s.append("hello");
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s.shrink_to_fit();
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ASSERT_EQ(faststring::kInitialCapacity, s.capacity());
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}
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TEST_F(FaststringTest, TestShrinkToFit_Random) {
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doris::Random r(time(nullptr));
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int kMaxSize = faststring::kInitialCapacity * 2;
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std::unique_ptr<char[]> random_bytes(new char[kMaxSize]);
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RandomString(random_bytes.get(), kMaxSize, &r);
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faststring s;
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for (int i = 0; i < 100; i++) {
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int new_size = r.Uniform(kMaxSize);
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s.resize(new_size);
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memcpy(s.data(), random_bytes.get(), new_size);
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s.shrink_to_fit();
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ASSERT_EQ(0, memcmp(s.data(), random_bytes.get(), new_size));
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ASSERT_EQ(std::max<int>(faststring::kInitialCapacity, new_size), s.capacity());
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}
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}
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} // namespace doris
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int main(int argc, char** argv) {
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testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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