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03fc65347c
# ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D26280 --HG-- extra : moz-landing-system : lando
36 lines
1.2 KiB
C++
36 lines
1.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "gtest/gtest.h"
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#include "BufferReader.h"
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TEST(BufferReader, ReaderCursor)
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{
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// Allocate a buffer and create a BufferReader.
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const size_t BUFFER_SIZE = 10;
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uint8_t buffer[BUFFER_SIZE] = {0};
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const uint8_t* const HEAD = reinterpret_cast<uint8_t*>(buffer);
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const uint8_t* const TAIL = HEAD + BUFFER_SIZE;
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BufferReader reader(HEAD, BUFFER_SIZE);
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ASSERT_EQ(reader.Offset(), static_cast<size_t>(0));
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ASSERT_EQ(reader.Peek(BUFFER_SIZE), HEAD);
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// Keep reading to the end, and make sure the final read failed.
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const size_t READ_SIZE = 4;
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ASSERT_NE(BUFFER_SIZE % READ_SIZE, static_cast<size_t>(0));
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for (const uint8_t* ptr = reader.Peek(0); ptr != nullptr;
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ptr = reader.Read(READ_SIZE)) {
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}
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// Check the reading cursor of the BufferReader is correct
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// after reading and seeking.
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const uint8_t* tail = reader.Peek(0);
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const uint8_t* head = reader.Seek(0);
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EXPECT_EQ(head, HEAD);
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EXPECT_EQ(tail, TAIL);
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} |