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Diffstat (limited to 'tools/qa/cppunit/test_stream.cxx')
| -rw-r--r-- | tools/qa/cppunit/test_stream.cxx | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/tools/qa/cppunit/test_stream.cxx b/tools/qa/cppunit/test_stream.cxx new file mode 100644 index 000000000..d8e4d1ef7 --- /dev/null +++ b/tools/qa/cppunit/test_stream.cxx @@ -0,0 +1,277 @@ +/* -*- 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/. + */ + +#include <sal/types.h> +#include <cppunit/TestAssert.h> +#include <cppunit/TestFixture.h> +#include <cppunit/extensions/HelperMacros.h> +#include <tools/stream.hxx> +#include <sstream> + +//Tests for eofbit/badbit/goodbit/failbit + +namespace +{ + + class Test: public CppUnit::TestFixture + { + public: + void test_stdstream(); + void test_fastostring(); + void test_read_cstring(); + void test_read_pstring(); + void test_readline(); + + CPPUNIT_TEST_SUITE(Test); + CPPUNIT_TEST(test_stdstream); + CPPUNIT_TEST(test_fastostring); + CPPUNIT_TEST(test_read_cstring); + CPPUNIT_TEST(test_read_pstring); + CPPUNIT_TEST(test_readline); + CPPUNIT_TEST_SUITE_END(); + }; + + void Test::test_stdstream() + { + char foo[] = "foo"; + std::istringstream iss(foo, std::istringstream::in); + SvMemoryStream aMemStream(foo, SAL_N_ELEMENTS(foo)-1, StreamMode::READ); + + char std_a(78); + iss >> std_a; + CPPUNIT_ASSERT_EQUAL('f', std_a); + + char tools_a(78); + aMemStream.ReadChar( tools_a ); + CPPUNIT_ASSERT_EQUAL('f', tools_a); + + iss.seekg(0, std::ios_base::end); + //seeking to end doesn't set eof, reading past eof does + CPPUNIT_ASSERT(!iss.eof()); + CPPUNIT_ASSERT(iss.good()); + + aMemStream.Seek(STREAM_SEEK_TO_END); + //seeking to end doesn't set eof, reading past eof does + CPPUNIT_ASSERT(!aMemStream.eof()); + CPPUNIT_ASSERT(aMemStream.good()); + + std_a = 78; + iss >> std_a; + //so, now eof is set + CPPUNIT_ASSERT(iss.eof()); + //a failed read doesn't change the data, it remains unchanged + CPPUNIT_ASSERT_EQUAL(static_cast<char>(78), std_a); + //nothing wrong with the stream, so not bad + CPPUNIT_ASSERT(!iss.bad()); + //yet, the read didn't succeed + CPPUNIT_ASSERT(!iss.good()); + CPPUNIT_ASSERT_EQUAL((std::ios::failbit|std::ios::eofbit), iss.rdstate()); + + tools_a = 78; + aMemStream.ReadChar( tools_a ); + //so, now eof is set + CPPUNIT_ASSERT(aMemStream.eof()); + //a failed read doesn't change the data, it remains unchanged + CPPUNIT_ASSERT_EQUAL(static_cast<char>(78), tools_a); + //nothing wrong with the stream, so not bad + CPPUNIT_ASSERT(!aMemStream.bad()); + //yet, the read didn't succeed + CPPUNIT_ASSERT(!aMemStream.good()); + + //set things up so that there is only one byte available on an attempt + //to read a two-byte sal_uInt16. The byte should be consumed, but the + //operation should fail, and tools_b should remain unchanged, + sal_uInt16 tools_b = 0x1122; + aMemStream.SeekRel(-1); + CPPUNIT_ASSERT(!aMemStream.eof()); + CPPUNIT_ASSERT(aMemStream.good()); + aMemStream.ReadUInt16( tools_b ); + CPPUNIT_ASSERT(!aMemStream.good()); + CPPUNIT_ASSERT(aMemStream.eof()); + CPPUNIT_ASSERT_EQUAL(static_cast<sal_uInt16>(0x1122), tools_b); + + iss.clear(); + iss.seekg(0); + CPPUNIT_ASSERT(iss.good()); + iss >> std_a; + CPPUNIT_ASSERT_EQUAL('f', std_a); + + aMemStream.Seek(0); + CPPUNIT_ASSERT(aMemStream.good()); + aMemStream.ReadChar( tools_a ); + CPPUNIT_ASSERT_EQUAL('f', tools_a); + + //failbit is rather subtle wrt e.g seeks + + char buffer[1024]; + + iss.clear(); + iss.seekg(0); + CPPUNIT_ASSERT(iss.good()); + iss.read(buffer, sizeof(buffer)); + CPPUNIT_ASSERT_EQUAL(static_cast<std::streamsize>(3), iss.gcount()); + CPPUNIT_ASSERT(!iss.good()); + CPPUNIT_ASSERT(!iss.bad()); + CPPUNIT_ASSERT(iss.eof()); + + aMemStream.Seek(0); + CPPUNIT_ASSERT(aMemStream.good()); + std::size_t nRet = aMemStream.ReadBytes(buffer, sizeof(buffer)); + CPPUNIT_ASSERT_EQUAL(static_cast<std::size_t>(3), nRet); + CPPUNIT_ASSERT(!aMemStream.good()); + CPPUNIT_ASSERT(!aMemStream.bad()); + CPPUNIT_ASSERT(aMemStream.eof()); + } + + void Test::test_fastostring() + { + char foo[] = "foobar"; + SvMemoryStream aMemStream(foo, SAL_N_ELEMENTS(foo)-1, StreamMode::READ); + + OString aOne = read_uInt8s_ToOString(aMemStream, 3); + CPPUNIT_ASSERT_EQUAL(OString("foo"), aOne); + + OString aTwo = read_uInt8s_ToOString(aMemStream, 3); + CPPUNIT_ASSERT_EQUAL(OString("bar"), aTwo); + + OString aThree = read_uInt8s_ToOString(aMemStream, 3); + CPPUNIT_ASSERT(aThree.isEmpty()); + + aMemStream.Seek(0); + + OString aFour = read_uInt8s_ToOString(aMemStream, 100); + CPPUNIT_ASSERT_EQUAL(OString(foo), aFour); + } + + void Test::test_read_cstring() + { + char foo[] = "foobar"; + SvMemoryStream aMemStream(foo, SAL_N_ELEMENTS(foo)-1, StreamMode::READ); + + OString aOne = read_zeroTerminated_uInt8s_ToOString(aMemStream); + CPPUNIT_ASSERT_EQUAL(OString("foobar"), aOne); + CPPUNIT_ASSERT(!aMemStream.good()); + CPPUNIT_ASSERT(!aMemStream.bad()); + CPPUNIT_ASSERT(aMemStream.eof()); + + aMemStream.Seek(0); + foo[3] = 0; + OString aTwo = read_zeroTerminated_uInt8s_ToOString(aMemStream); + CPPUNIT_ASSERT_EQUAL(OString("foo"), aTwo); + CPPUNIT_ASSERT(aMemStream.good()); + } + + void Test::test_read_pstring() + { + char foo[] = "\3foobar"; + SvMemoryStream aMemStream(foo, SAL_N_ELEMENTS(foo)-1, StreamMode::READ); + + OString aFoo = read_uInt8_lenPrefixed_uInt8s_ToOString(aMemStream); + CPPUNIT_ASSERT_EQUAL(OString("foo"), aFoo); + CPPUNIT_ASSERT(aMemStream.good()); + CPPUNIT_ASSERT(!aMemStream.bad()); + CPPUNIT_ASSERT(!aMemStream.eof()); + + aMemStream.Seek(0); + foo[0] = 10; + aFoo = read_uInt8_lenPrefixed_uInt8s_ToOString(aMemStream); + CPPUNIT_ASSERT_EQUAL(OString("foobar"), aFoo); + CPPUNIT_ASSERT(!aMemStream.good()); + CPPUNIT_ASSERT(!aMemStream.bad()); + CPPUNIT_ASSERT(aMemStream.eof()); + + aMemStream.SetEndian(SvStreamEndian::BIG); + aMemStream.Seek(0); + foo[0] = 0; + foo[1] = 3; + aFoo = read_uInt16_lenPrefixed_uInt8s_ToOString(aMemStream); + CPPUNIT_ASSERT_EQUAL(OString("oob"), aFoo); + CPPUNIT_ASSERT(aMemStream.good()); + CPPUNIT_ASSERT(!aMemStream.bad()); + CPPUNIT_ASSERT(!aMemStream.eof()); + } + + void Test::test_readline() + { + char foo[] = "foo\nbar\n\n"; + SvMemoryStream aMemStream(foo, SAL_N_ELEMENTS(foo)-1, StreamMode::READ); + + OString aFoo; + bool bRet; + + bRet = aMemStream.ReadLine(aFoo); + CPPUNIT_ASSERT(bRet); + CPPUNIT_ASSERT_EQUAL(OString("foo"), aFoo); + CPPUNIT_ASSERT(aMemStream.good()); + + bRet = aMemStream.ReadLine(aFoo); + CPPUNIT_ASSERT(bRet); + CPPUNIT_ASSERT_EQUAL(OString("bar"), aFoo); + CPPUNIT_ASSERT(aMemStream.good()); + + bRet = aMemStream.ReadLine(aFoo); + CPPUNIT_ASSERT(bRet); + CPPUNIT_ASSERT(aFoo.isEmpty()); + CPPUNIT_ASSERT(aMemStream.good()); + + bRet = aMemStream.ReadLine(aFoo); + CPPUNIT_ASSERT(!bRet); + CPPUNIT_ASSERT(aFoo.isEmpty()); + CPPUNIT_ASSERT(aMemStream.eof()); + + foo[3] = 0; //test reading embedded nulls + + aMemStream.Seek(0); + bRet = aMemStream.ReadLine(aFoo); + CPPUNIT_ASSERT(bRet); + CPPUNIT_ASSERT(aFoo.getLength() == 7 && aFoo[3] == 0); + CPPUNIT_ASSERT(aMemStream.good()); + + std::string sStr(foo, RTL_CONSTASCII_LENGTH(foo)); + std::istringstream iss(sStr, std::istringstream::in); + std::getline(iss, sStr, '\n'); + //embedded null read as expected + CPPUNIT_ASSERT(sStr.size() == 7 && sStr[3] == 0); + CPPUNIT_ASSERT(iss.good()); + + bRet = aMemStream.ReadLine(aFoo); + CPPUNIT_ASSERT(bRet); + CPPUNIT_ASSERT(aFoo.isEmpty()); + CPPUNIT_ASSERT(aMemStream.good()); + + std::getline(iss, sStr, '\n'); + CPPUNIT_ASSERT(sStr.empty()); + CPPUNIT_ASSERT(iss.good()); + + bRet = aMemStream.ReadLine(aFoo); + CPPUNIT_ASSERT(!bRet); + CPPUNIT_ASSERT(aFoo.isEmpty()); + CPPUNIT_ASSERT(aMemStream.eof() && !aMemStream.bad()); + + std::getline(iss, sStr, '\n'); + CPPUNIT_ASSERT(sStr.empty()); + CPPUNIT_ASSERT(iss.eof() && !iss.bad()); + + char bar[] = "foo"; + SvMemoryStream aMemStreamB(bar, SAL_N_ELEMENTS(bar)-1, StreamMode::READ); + bRet = aMemStreamB.ReadLine(aFoo); + CPPUNIT_ASSERT(bRet); + CPPUNIT_ASSERT_EQUAL(OString("foo"), aFoo); + CPPUNIT_ASSERT(!aMemStreamB.eof()); //<-- diff A + + std::istringstream issB(bar, std::istringstream::in); + std::getline(issB, sStr, '\n'); + CPPUNIT_ASSERT_EQUAL(std::string("foo"), sStr); + CPPUNIT_ASSERT(issB.eof()); //<-- diff A + } + + CPPUNIT_TEST_SUITE_REGISTRATION(Test); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |