gecko-dev/mfbt/tests/gtest/TestBuffer.cpp

97 строки
2.1 KiB
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "gtest/gtest.h"
#include "mozilla/Buffer.h"
#include "mozilla/Array.h"
using namespace mozilla;
TEST(Buffer, TestBufferInfallible)
{
const size_t LEN = 8;
Array<int32_t, LEN> arr = {1, 2, 3, 4, 5, 6, 7, 8};
Buffer<int32_t> buf(arr);
for (size_t i = 0; i < LEN; i++) {
ASSERT_EQ(buf[i], arr[i]);
}
auto iter = buf.begin();
auto end = buf.end();
for (size_t i = 0; i < LEN; i++) {
ASSERT_EQ(*iter, arr[i]);
iter++;
}
ASSERT_EQ(iter, end);
Span<int32_t> span = buf;
for (size_t i = 0; i < LEN; i++) {
ASSERT_EQ(span[i], arr[i]);
}
auto spanIter = span.begin();
auto spanEnd = span.end();
for (size_t i = 0; i < LEN; i++) {
ASSERT_EQ(*spanIter, arr[i]);
spanIter++;
}
ASSERT_EQ(spanIter, spanEnd);
span[3] = 42;
ASSERT_EQ(buf[3], 42);
Buffer<int32_t> another(std::move(buf));
ASSERT_EQ(another[3], 42);
ASSERT_EQ(buf.Length(), 0U);
}
TEST(Buffer, TestBufferFallible)
{
const size_t LEN = 8;
Array<int32_t, LEN> arr = {1, 2, 3, 4, 5, 6, 7, 8};
auto maybe = Buffer<int32_t>::CopyFrom(arr);
ASSERT_TRUE(maybe.isSome());
Buffer<int32_t> buf(std::move(*maybe));
for (size_t i = 0; i < LEN; i++) {
ASSERT_EQ(buf[i], arr[i]);
}
auto iter = buf.begin();
auto end = buf.end();
for (size_t i = 0; i < LEN; i++) {
ASSERT_EQ(*iter, arr[i]);
iter++;
}
ASSERT_EQ(iter, end);
Span<int32_t> span = buf;
for (size_t i = 0; i < LEN; i++) {
ASSERT_EQ(span[i], arr[i]);
}
auto spanIter = span.begin();
auto spanEnd = span.end();
for (size_t i = 0; i < LEN; i++) {
ASSERT_EQ(*spanIter, arr[i]);
spanIter++;
}
ASSERT_EQ(spanIter, spanEnd);
span[3] = 42;
ASSERT_EQ(buf[3], 42);
Buffer<int32_t> another(std::move(buf));
ASSERT_EQ(another[3], 42);
ASSERT_EQ(buf.Length(), 0U);
}
TEST(Buffer, TestBufferElements)
{
ASSERT_EQ(Buffer<int32_t>().Elements(),
reinterpret_cast<int32_t*>(alignof(int32_t)));
}