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Diffstat (limited to '')
| -rw-r--r-- | sal/qa/rtl/crc32/rtl_crc32.cxx | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/sal/qa/rtl/crc32/rtl_crc32.cxx b/sal/qa/rtl/crc32/rtl_crc32.cxx new file mode 100644 index 000000000..00933b589 --- /dev/null +++ b/sal/qa/rtl/crc32/rtl_crc32.cxx @@ -0,0 +1,154 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * 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/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <sal/types.h> +#include <cppunit/TestFixture.h> +#include <cppunit/extensions/HelperMacros.h> +#include <cppunit/plugin/TestPlugIn.h> + +#include <rtl/crc.h> + +namespace rtl_CRC32 +{ + +class test : public CppUnit::TestFixture +{ +public: + + // insert your test code here. + void rtl_crc32_001() + { + // this is demonstration code + // CPPUNIT_ASSERT_MESSAGE("a message", 1 == 1); + + sal_uInt32 nCRC = 0; + + char buf[] = {0}; + int num = 0; + + nCRC = rtl_crc32(nCRC, buf, num); + + CPPUNIT_ASSERT_EQUAL_MESSAGE("empty crc buffer", static_cast<sal_uInt32>(0), nCRC); + } + + void rtl_crc32_002() + { + sal_uInt32 nCRC = 0; + + char buf[] = {0,0}; + int num = sizeof(buf); + + nCRC = rtl_crc32(nCRC, buf, num); + + CPPUNIT_ASSERT_MESSAGE("buffer contain 2 empty bytes, crc is zero", nCRC != 0); + } + + void rtl_crc32_002_1() + { + sal_uInt32 nCRC = 0; + + char buf[] = {0,0,0}; + int num = sizeof(buf); + + nCRC = rtl_crc32(nCRC, buf, num); + + CPPUNIT_ASSERT_MESSAGE("buffer contain 3 empty bytes, crc is zero", nCRC != 0); + } + + /** + * crc32 check: + * Build checksum on two buffers with same size but different content, + * the result (crc32 checksum) must differ + */ + + void rtl_crc32_003() + { + sal_uInt32 nCRC1 = 0; + char buf1[] = {2}; + int num1 = sizeof(buf1); + + nCRC1 = rtl_crc32(nCRC1, buf1, num1); + + sal_uInt32 nCRC2 = 0; + char buf2[] = {3}; + int num2 = sizeof(buf2); + + nCRC2 = rtl_crc32(nCRC2, buf2, num2); + + CPPUNIT_ASSERT_MESSAGE("checksum should differ for buf1 and buf2", nCRC1 != nCRC2); + } + + /** check if the crc32 only use as much values, as given + * + */ + void rtl_crc32_003_1() + { + sal_uInt32 nCRC1 = 0; + char buf1[] = {2,1}; + int num1 = sizeof(buf1) - 1; + + nCRC1 = rtl_crc32(nCRC1, buf1, num1); + + sal_uInt32 nCRC2 = 0; + char buf2[] = {2,2}; + int num2 = sizeof(buf2) - 1; + + nCRC2 = rtl_crc32(nCRC2, buf2, num2); + + CPPUNIT_ASSERT_EQUAL_MESSAGE("checksum leave it's bounds", nCRC2, nCRC1); + } + + /** check if the crc32 differ at same content in reverse order + * + */ + void rtl_crc32_003_2() + { + sal_uInt32 nCRC1 = 0; + char buf1[] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20}; + int num1 = sizeof(buf1); + + nCRC1 = rtl_crc32(nCRC1, buf1, num1); + + sal_uInt32 nCRC2 = 0; + char buf2[] = {20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0}; + int num2 = sizeof(buf2); + + nCRC2 = rtl_crc32(nCRC2, buf2, num2); + + CPPUNIT_ASSERT_MESSAGE("checksum should differ", nCRC1 != nCRC2); + } + + // Change the following lines only, if you add, remove or rename + // member functions of the current class, + // because these macros are need by auto register mechanism. + + CPPUNIT_TEST_SUITE(test); + CPPUNIT_TEST(rtl_crc32_001); + CPPUNIT_TEST(rtl_crc32_002); + CPPUNIT_TEST(rtl_crc32_002_1); + CPPUNIT_TEST(rtl_crc32_003); + CPPUNIT_TEST(rtl_crc32_003_1); + CPPUNIT_TEST(rtl_crc32_003_2); + CPPUNIT_TEST_SUITE_END(); +}; // class test + +CPPUNIT_TEST_SUITE_REGISTRATION(rtl_CRC32::test); +} // namespace rtl_CRC32 + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |