433 lines
14 KiB
C++
433 lines
14 KiB
C++
/**
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* @file test_bufferarray.hpp
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* @brief unit tests for the LLCore::BufferArray class
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*
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* $LicenseInfo:firstyear=2012&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2012, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef TEST_LLCORE_BUFFER_ARRAY_H_
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#define TEST_LLCORE_BUFFER_ARRAY_H_
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#include "bufferarray.h"
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#include <iostream>
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#include "test_allocator.h"
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using namespace LLCore;
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namespace tut
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{
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struct BufferArrayTestData
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{
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// the test objects inherit from this so the member functions and variables
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// can be referenced directly inside of the test functions.
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size_t mMemTotal;
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};
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typedef test_group<BufferArrayTestData> BufferArrayTestGroupType;
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typedef BufferArrayTestGroupType::object BufferArrayTestObjectType;
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BufferArrayTestGroupType BufferArrayTestGroup("BufferArray Tests");
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template <> template <>
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void BufferArrayTestObjectType::test<1>()
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{
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set_test_name("BufferArray construction");
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// record the total amount of dynamically allocated memory
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mMemTotal = GetMemTotal();
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// create a new ref counted object with an implicit reference
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BufferArray * ba = new BufferArray();
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ensure("One ref on construction of BufferArray", ba->getRefCount() == 1);
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ensure("Memory being used", mMemTotal < GetMemTotal());
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ensure("Nothing in BA", 0 == ba->size());
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// Try to read
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char buffer[20];
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size_t read_len(ba->read(0, buffer, sizeof(buffer)));
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ensure("Read returns empty", 0 == read_len);
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// release the implicit reference, causing the object to be released
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ba->release();
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// make sure we didn't leak any memory
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ensure(mMemTotal == GetMemTotal());
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}
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template <> template <>
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void BufferArrayTestObjectType::test<2>()
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{
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set_test_name("BufferArray single write");
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// record the total amount of dynamically allocated memory
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mMemTotal = GetMemTotal();
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// create a new ref counted object with an implicit reference
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BufferArray * ba = new BufferArray();
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// write some data to the buffer
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char str1[] = "abcdefghij";
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char buffer[256];
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size_t len = ba->write(0, str1, strlen(str1));
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ensure("Wrote length correct", strlen(str1) == len);
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ensure("Recorded size correct", strlen(str1) == ba->size());
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// read some data back
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memset(buffer, 'X', sizeof(buffer));
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len = ba->read(2, buffer, 2);
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ensure("Read length correct", 2 == len);
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ensure("Read content correct", 'c' == buffer[0] && 'd' == buffer[1]);
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ensure("Read didn't overwrite", 'X' == buffer[2]);
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// release the implicit reference, causing the object to be released
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ba->release();
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// make sure we didn't leak any memory
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ensure(mMemTotal == GetMemTotal());
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}
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template <> template <>
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void BufferArrayTestObjectType::test<3>()
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{
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set_test_name("BufferArray multiple writes");
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// record the total amount of dynamically allocated memory
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mMemTotal = GetMemTotal();
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// create a new ref counted object with an implicit reference
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BufferArray * ba = new BufferArray();
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// write some data to the buffer
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char str1[] = "abcdefghij";
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size_t str1_len(strlen(str1));
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char buffer[256];
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size_t len = ba->write(0, str1, str1_len);
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ensure("Wrote length correct", str1_len == len);
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ensure("Recorded size correct", str1_len == ba->size());
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// again...
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len = ba->write(str1_len, str1, strlen(str1));
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ensure("Wrote length correct", str1_len == len);
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ensure("Recorded size correct", (2 * str1_len) == ba->size());
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// read some data back
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memset(buffer, 'X', sizeof(buffer));
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len = ba->read(8, buffer, 4);
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ensure("Read length correct", 4 == len);
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ensure("Read content correct", 'i' == buffer[0] && 'j' == buffer[1]);
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ensure("Read content correct", 'a' == buffer[2] && 'b' == buffer[3]);
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ensure("Read didn't overwrite", 'X' == buffer[4]);
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// Read whole thing
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memset(buffer, 'X', sizeof(buffer));
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len = ba->read(0, buffer, sizeof(buffer));
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ensure("Read length correct", (2 * str1_len) == len);
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ensure("Read content correct (3)", 0 == strncmp(buffer, str1, str1_len));
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ensure("Read content correct (4)", 0 == strncmp(&buffer[str1_len], str1, str1_len));
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ensure("Read didn't overwrite (5)", 'X' == buffer[2 * str1_len]);
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// release the implicit reference, causing the object to be released
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ba->release();
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// make sure we didn't leak any memory
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ensure(mMemTotal == GetMemTotal());
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}
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template <> template <>
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void BufferArrayTestObjectType::test<4>()
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{
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set_test_name("BufferArray overwriting");
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// record the total amount of dynamically allocated memory
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mMemTotal = GetMemTotal();
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// create a new ref counted object with an implicit reference
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BufferArray * ba = new BufferArray();
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// write some data to the buffer
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char str1[] = "abcdefghij";
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size_t str1_len(strlen(str1));
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char str2[] = "ABCDEFGHIJ";
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char buffer[256];
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size_t len = ba->write(0, str1, str1_len);
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ensure("Wrote length correct", str1_len == len);
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ensure("Recorded size correct", str1_len == ba->size());
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// again...
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len = ba->write(str1_len, str1, strlen(str1));
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ensure("Wrote length correct", str1_len == len);
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ensure("Recorded size correct", (2 * str1_len) == ba->size());
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// reposition and overwrite
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len = ba->write(8, str2, 4);
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ensure("Overwrite length correct", 4 == len);
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// Leave position and read verifying content (stale really from seek() days)
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memset(buffer, 'X', sizeof(buffer));
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len = ba->read(12, buffer, 4);
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ensure("Read length correct", 4 == len);
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ensure("Read content correct", 'c' == buffer[0] && 'd' == buffer[1]);
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ensure("Read content correct.2", 'e' == buffer[2] && 'f' == buffer[3]);
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ensure("Read didn't overwrite", 'X' == buffer[4]);
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// reposition and check
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len = ba->read(6, buffer, 8);
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ensure("Read length correct.2", 8 == len);
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ensure("Read content correct.3", 'g' == buffer[0] && 'h' == buffer[1]);
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ensure("Read content correct.4", 'A' == buffer[2] && 'B' == buffer[3]);
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ensure("Read content correct.5", 'C' == buffer[4] && 'D' == buffer[5]);
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ensure("Read content correct.6", 'c' == buffer[6] && 'd' == buffer[7]);
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ensure("Read didn't overwrite.7", 'X' == buffer[8]);
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// release the implicit reference, causing the object to be released
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ba->release();
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// make sure we didn't leak any memory
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ensure(mMemTotal == GetMemTotal());
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}
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template <> template <>
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void BufferArrayTestObjectType::test<5>()
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{
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set_test_name("BufferArray multiple writes - sequential reads");
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// record the total amount of dynamically allocated memory
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mMemTotal = GetMemTotal();
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// create a new ref counted object with an implicit reference
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BufferArray * ba = new BufferArray();
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// write some data to the buffer
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char str1[] = "abcdefghij";
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size_t str1_len(strlen(str1));
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char buffer[256];
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size_t len = ba->write(0, str1, str1_len);
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ensure("Wrote length correct", str1_len == len);
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ensure("Recorded size correct", str1_len == ba->size());
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// again...
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len = ba->write(str1_len, str1, str1_len);
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ensure("Wrote length correct", str1_len == len);
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ensure("Recorded size correct", (2 * str1_len) == ba->size());
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// read some data back
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memset(buffer, 'X', sizeof(buffer));
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len = ba->read(8, buffer, 4);
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ensure("Read length correct", 4 == len);
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ensure("Read content correct", 'i' == buffer[0] && 'j' == buffer[1]);
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ensure("Read content correct.2", 'a' == buffer[2] && 'b' == buffer[3]);
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ensure("Read didn't overwrite", 'X' == buffer[4]);
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// Read some more without repositioning
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memset(buffer, 'X', sizeof(buffer));
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len = ba->read(12, buffer, sizeof(buffer));
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ensure("Read length correct", (str1_len - 2) == len);
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ensure("Read content correct.3", 0 == strncmp(buffer, str1+2, str1_len-2));
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ensure("Read didn't overwrite.2", 'X' == buffer[str1_len-1]);
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// release the implicit reference, causing the object to be released
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ba->release();
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// make sure we didn't leak any memory
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ensure(mMemTotal == GetMemTotal());
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}
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template <> template <>
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void BufferArrayTestObjectType::test<6>()
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{
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set_test_name("BufferArray overwrite spanning blocks and appending");
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// record the total amount of dynamically allocated memory
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mMemTotal = GetMemTotal();
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// create a new ref counted object with an implicit reference
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BufferArray * ba = new BufferArray();
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// write some data to the buffer
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char str1[] = "abcdefghij";
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size_t str1_len(strlen(str1));
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char str2[] = "ABCDEFGHIJKLMNOPQRST";
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size_t str2_len(strlen(str2));
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char buffer[256];
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size_t len = ba->write(0, str1, str1_len);
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ensure("Wrote length correct", str1_len == len);
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ensure("Recorded size correct", str1_len == ba->size());
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// again...
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len = ba->write(str1_len, str1, strlen(str1));
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ensure("Wrote length correct", str1_len == len);
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ensure("Recorded size correct", (2 * str1_len) == ba->size());
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// reposition and overwrite
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len = ba->write(8, str2, str2_len);
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ensure("Overwrite length correct", str2_len == len);
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// Leave position and read verifying content
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memset(buffer, 'X', sizeof(buffer));
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len = ba->read(8 + str2_len, buffer, 0);
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ensure("Read length correct", 0 == len);
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ensure("Read didn't overwrite", 'X' == buffer[0]);
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// reposition and check
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len = ba->read(0, buffer, sizeof(buffer));
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ensure("Read length correct.2", (str1_len + str2_len - 2) == len);
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ensure("Read content correct", 0 == strncmp(buffer, str1, str1_len-2));
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ensure("Read content correct.2", 0 == strncmp(buffer+str1_len-2, str2, str2_len));
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ensure("Read didn't overwrite.2", 'X' == buffer[str1_len + str2_len - 2]);
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// release the implicit reference, causing the object to be released
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ba->release();
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// make sure we didn't leak any memory
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ensure("All memory released", mMemTotal == GetMemTotal());
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}
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template <> template <>
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void BufferArrayTestObjectType::test<7>()
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{
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set_test_name("BufferArray overwrite spanning blocks and sequential writes");
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// record the total amount of dynamically allocated memory
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mMemTotal = GetMemTotal();
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// create a new ref counted object with an implicit reference
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BufferArray * ba = new BufferArray();
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// write some data to the buffer
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char str1[] = "abcdefghij";
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size_t str1_len(strlen(str1));
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char str2[] = "ABCDEFGHIJKLMNOPQRST";
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size_t str2_len(strlen(str2));
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char buffer[256];
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// 2x str1
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size_t len = ba->write(0, str1, str1_len);
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len = ba->write(str1_len, str1, str1_len);
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// reposition and overwrite
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len = ba->write(6, str2, 2);
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ensure("Overwrite length correct", 2 == len);
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len = ba->write(8, str2, 2);
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ensure("Overwrite length correct.2", 2 == len);
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len = ba->write(10, str2, 2);
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ensure("Overwrite length correct.3", 2 == len);
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// append some data
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len = ba->append(str2, str2_len);
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ensure("Append length correct", str2_len == len);
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// append some more
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void * out_buf(ba->appendBufferAlloc(str1_len));
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memcpy(out_buf, str1, str1_len);
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// And some final writes
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len = ba->write(3 * str1_len + str2_len, str2, 2);
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ensure("Write length correct.2", 2 == len);
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// Check contents
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memset(buffer, 'X', sizeof(buffer));
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len = ba->read(0, buffer, sizeof(buffer));
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ensure("Final buffer length correct", (3 * str1_len + str2_len + 2) == len);
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ensure("Read content correct", 0 == strncmp(buffer, str1, 6));
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ensure("Read content correct.2", 0 == strncmp(buffer + 6, str2, 2));
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ensure("Read content correct.3", 0 == strncmp(buffer + 8, str2, 2));
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ensure("Read content correct.4", 0 == strncmp(buffer + 10, str2, 2));
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ensure("Read content correct.5", 0 == strncmp(buffer + str1_len + 2, str1 + 2, str1_len - 2));
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ensure("Read content correct.6", 0 == strncmp(buffer + str1_len + str1_len, str2, str2_len));
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ensure("Read content correct.7", 0 == strncmp(buffer + str1_len + str1_len + str2_len, str1, str1_len));
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ensure("Read content correct.8", 0 == strncmp(buffer + str1_len + str1_len + str2_len + str1_len, str2, 2));
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ensure("Read didn't overwrite", 'X' == buffer[str1_len + str1_len + str2_len + str1_len + 2]);
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// release the implicit reference, causing the object to be released
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ba->release();
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// make sure we didn't leak any memory
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ensure("All memory released", mMemTotal == GetMemTotal());
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}
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template <> template <>
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void BufferArrayTestObjectType::test<8>()
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{
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set_test_name("BufferArray zero-length appendBufferAlloc");
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// record the total amount of dynamically allocated memory
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mMemTotal = GetMemTotal();
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// create a new ref counted object with an implicit reference
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BufferArray * ba = new BufferArray();
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// write some data to the buffer
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char str1[] = "abcdefghij";
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size_t str1_len(strlen(str1));
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char str2[] = "ABCDEFGHIJKLMNOPQRST";
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size_t str2_len(strlen(str2));
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char buffer[256];
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// 2x str1
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size_t len = ba->write(0, str1, str1_len);
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len = ba->write(str1_len, str1, str1_len);
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// zero-length allocate (we allow this with a valid pointer returned)
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void * out_buf(ba->appendBufferAlloc(0));
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ensure("Buffer from zero-length appendBufferAlloc non-NULL", NULL != out_buf);
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// Do it again
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void * out_buf2(ba->appendBufferAlloc(0));
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ensure("Buffer from zero-length appendBufferAlloc non-NULL.2", NULL != out_buf2);
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ensure("Two zero-length appendBufferAlloc buffers distinct", out_buf != out_buf2);
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// And some final writes
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len = ba->write(2 * str1_len, str2, str2_len);
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// Check contents
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memset(buffer, 'X', sizeof(buffer));
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len = ba->read(0, buffer, sizeof(buffer));
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ensure("Final buffer length correct", (2 * str1_len + str2_len) == len);
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ensure("Read content correct.1", 0 == strncmp(buffer, str1, str1_len));
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ensure("Read content correct.2", 0 == strncmp(buffer + str1_len, str1, str1_len));
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ensure("Read content correct.3", 0 == strncmp(buffer + str1_len + str1_len, str2, str2_len));
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ensure("Read didn't overwrite", 'X' == buffer[str1_len + str1_len + str2_len]);
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// release the implicit reference, causing the object to be released
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ba->release();
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// make sure we didn't leak any memory
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ensure("All memory released", mMemTotal == GetMemTotal());
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}
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} // end namespace tut
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#endif // TEST_LLCORE_BUFFER_ARRAY_H_
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