Common C++ classes and routines used by my applications such as argument parser, IO and conversion utilities
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#include "./testutils.h"
#include "../conversion/conversionexception.h"
#include "../conversion/stringbuilder.h"
#include "../io/ansiescapecodes.h"
#include "../io/binaryreader.h"
#include "../io/binarywriter.h"
#include "../io/bitreader.h"
#include "../io/catchiofailure.h"
#include "../io/copy.h"
#include "../io/inifile.h"
#include "../io/misc.h"
#include "../io/nativefilestream.h"
#include "../io/path.h"
#include <cppunit/TestFixture.h>
#include <cppunit/extensions/HelperMacros.h>
#include <algorithm>
#include <fstream>
#include <regex>
#include <sstream>
#ifdef PLATFORM_UNIX
#include <sys/fcntl.h>
#include <sys/types.h>
#endif
using namespace std;
using namespace IoUtilities;
using namespace TestUtilities;
using namespace TestUtilities::Literals;
using namespace ConversionUtilities;
using namespace CPPUNIT_NS;
/*!
* \brief The IoTests class tests classes and methods of the IoUtilities namespace.
*/
class IoTests : public TestFixture {
CPPUNIT_TEST_SUITE(IoTests);
CPPUNIT_TEST(testFailure);
CPPUNIT_TEST(testBinaryReader);
CPPUNIT_TEST(testBinaryWriter);
CPPUNIT_TEST(testBitReader);
CPPUNIT_TEST(testPathUtilities);
CPPUNIT_TEST(testIniFile);
CPPUNIT_TEST(testCopy);
CPPUNIT_TEST(testReadFile);
CPPUNIT_TEST(testAnsiEscapeCodes);
#ifdef CPP_UTILITIES_USE_NATIVE_FILE_BUFFER
CPPUNIT_TEST(testNativeFileStream);
#endif
CPPUNIT_TEST_SUITE_END();
public:
void setUp();
void tearDown();
void testFailure();
void testBinaryReader();
void testBinaryWriter();
void testBitReader();
void testPathUtilities();
void testIniFile();
void testCopy();
void testReadFile();
void testAnsiEscapeCodes();
void testNativeFileStream();
};
CPPUNIT_TEST_SUITE_REGISTRATION(IoTests);
void IoTests::setUp()
{
}
void IoTests::tearDown()
{
}
/*!
* \brief Tests for GCC Bug 66145.
* \sa https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66145
* \remarks Using workaround now; hence testing workaround instead.
*/
void IoTests::testFailure()
{
//fstream stream;
//stream.exceptions(ios_base::failbit | ios_base::badbit);
//CPPUNIT_ASSERT_THROW(stream.open("path/to/file/which/does/not/exist", ios_base::in), ios_base::failure);
// check other exceptions used by my applications, too
vector<int> testVec;
map<string, string> testMap;
CPPUNIT_ASSERT_THROW(testVec.at(1), out_of_range);
CPPUNIT_ASSERT_THROW(testMap.at("test"), out_of_range);
// check workaround
try {
fstream stream;
stream.exceptions(ios_base::failbit | ios_base::badbit);
stream.open("path/to/file/which/does/not/exist", ios_base::in);
} catch (...) {
catchIoFailure();
}
}
/*!
* \brief Tests the most important methods of the BinaryReader.
*/
void IoTests::testBinaryReader()
{
// read test file
fstream testFile;
testFile.exceptions(ios_base::failbit | ios_base::badbit);
testFile.open(TestUtilities::testFilePath("some_data"), ios_base::in | ios_base::binary);
BinaryReader reader(&testFile);
CPPUNIT_ASSERT_EQUAL(reader.readStreamsize(), static_cast<istream::pos_type>(398));
CPPUNIT_ASSERT(reader.readUInt16LE() == 0x0102u);
CPPUNIT_ASSERT(reader.readUInt16BE() == 0x0102u);
CPPUNIT_ASSERT(reader.readUInt24LE() == 0x010203u);
CPPUNIT_ASSERT(reader.readUInt24BE() == 0x010203u);
CPPUNIT_ASSERT(reader.readUInt32LE() == 0x01020304u);
CPPUNIT_ASSERT(reader.readUInt32BE() == 0x01020304u);
CPPUNIT_ASSERT(reader.readUInt40LE() == 0x0102030405u);
CPPUNIT_ASSERT(reader.readUInt40BE() == 0x0102030405u);
CPPUNIT_ASSERT(reader.readUInt56LE() == 0x01020304050607u);
CPPUNIT_ASSERT(reader.readUInt56BE() == 0x01020304050607u);
CPPUNIT_ASSERT(reader.readUInt64LE() == 0x0102030405060708u);
CPPUNIT_ASSERT(reader.readUInt64BE() == 0x0102030405060708u);
testFile.seekg(0);
CPPUNIT_ASSERT(reader.readInt16LE() == 0x0102);
CPPUNIT_ASSERT(reader.readInt16BE() == 0x0102);
CPPUNIT_ASSERT(reader.readInt24LE() == 0x010203);
CPPUNIT_ASSERT(reader.readInt24BE() == 0x010203);
CPPUNIT_ASSERT(reader.readInt32LE() == 0x01020304);
CPPUNIT_ASSERT(reader.readInt32BE() == 0x01020304);
CPPUNIT_ASSERT(reader.readInt40LE() == 0x0102030405);
CPPUNIT_ASSERT(reader.readInt40BE() == 0x0102030405);
CPPUNIT_ASSERT(reader.readInt56LE() == 0x01020304050607);
CPPUNIT_ASSERT(reader.readInt56BE() == 0x01020304050607);
CPPUNIT_ASSERT(reader.readInt64LE() == 0x0102030405060708);
CPPUNIT_ASSERT(reader.readInt64BE() == 0x0102030405060708);
CPPUNIT_ASSERT(reader.readFloat32LE() == 1.125);
CPPUNIT_ASSERT(reader.readFloat64LE() == 1.625);
CPPUNIT_ASSERT(reader.readFloat32BE() == 1.125);
CPPUNIT_ASSERT(reader.readFloat64BE() == 1.625);
CPPUNIT_ASSERT(reader.readBool() == false);
CPPUNIT_ASSERT(reader.readBool() == true);
CPPUNIT_ASSERT(reader.readString(3) == "abc");
CPPUNIT_ASSERT(reader.readLengthPrefixedString() == "ABC");
CPPUNIT_ASSERT(reader.readLengthPrefixedString()
== "01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901"
"23456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123"
"45678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345"
"678901234567890123456789");
CPPUNIT_ASSERT_EQUAL("def"s, reader.readTerminatedString());
testFile.seekg(-4, ios_base::cur);
CPPUNIT_ASSERT_EQUAL("def"s, reader.readTerminatedString(5, 0));
testFile.seekg(-4, ios_base::cur);
CPPUNIT_ASSERT_EQUAL("de"s, reader.readMultibyteTerminatedStringBE(5, 0x6600));
testFile.seekg(-4, ios_base::cur);
CPPUNIT_ASSERT_EQUAL("de"s, reader.readMultibyteTerminatedStringLE(5, 0x0066));
testFile.seekg(-4, ios_base::cur);
CPPUNIT_ASSERT_EQUAL("de"s, reader.readMultibyteTerminatedStringBE(static_cast<uint16>(0x6600)));
testFile.seekg(-4, ios_base::cur);
CPPUNIT_ASSERT_EQUAL("de"s, reader.readMultibyteTerminatedStringLE(static_cast<uint16>(0x0066)));
CPPUNIT_ASSERT_THROW(reader.readLengthPrefixedString(), ConversionException);
CPPUNIT_ASSERT_MESSAGE("pos in stream not advanced on conversion error", reader.readByte() == 0);
// test ownership
reader.setStream(nullptr, true);
reader.setStream(new fstream(), true);
BinaryReader reader2(reader);
CPPUNIT_ASSERT(reader2.stream() == reader.stream());
CPPUNIT_ASSERT(!reader2.hasOwnership());
reader.setStream(&testFile, false);
reader.setStream(new fstream(), true);
}
/*!
* \brief Tests the most important methods of the BinaryWriter.
*/
void IoTests::testBinaryWriter()
{
// prepare reading expected data
fstream testFile;
testFile.exceptions(ios_base::failbit | ios_base::badbit);
testFile.open(TestUtilities::testFilePath("some_data"), ios_base::in | ios_base::binary);
// prepare output stream
stringstream outputStream(ios_base::in | ios_base::out | ios_base::binary);
outputStream.exceptions(ios_base::failbit | ios_base::badbit);
char testData[397];
outputStream.rdbuf()->pubsetbuf(testData, sizeof(testData));
// write test data
BinaryWriter writer(&outputStream);
writer.writeUInt16LE(0x0102u);
writer.writeUInt16BE(0x0102u);
writer.writeUInt24LE(0x010203u);
writer.writeUInt24BE(0x010203u);
writer.writeUInt32LE(0x01020304u);
writer.writeUInt32BE(0x01020304u);
writer.writeUInt40LE(0x0102030405u);
writer.writeUInt40BE(0x0102030405u);
writer.writeUInt56LE(0x01020304050607u);
writer.writeUInt56BE(0x01020304050607u);
writer.writeUInt64LE(0x0102030405060708u);
writer.writeUInt64BE(0x0102030405060708u);
// test written values
for (char c : testData) {
CPPUNIT_ASSERT(c == static_cast<char>(testFile.get()));
if (testFile.tellg() >= 58) {
break;
}
}
testFile.seekg(0);
outputStream.seekp(0);
// write more test data
writer.writeInt16LE(0x0102);
writer.writeInt16BE(0x0102);
writer.writeInt24LE(0x010203);
writer.writeInt24BE(0x010203);
writer.writeInt32LE(0x01020304);
writer.writeInt32BE(0x01020304);
writer.writeInt40LE(0x0102030405);
writer.writeInt40BE(0x0102030405);
writer.writeInt56LE(0x01020304050607);
writer.writeInt56BE(0x01020304050607);
writer.writeInt64LE(0x0102030405060708);
writer.writeInt64BE(0x0102030405060708);
writer.writeFloat32LE(1.125);
writer.writeFloat64LE(1.625);
writer.writeFloat32BE(1.125);
writer.writeFloat64BE(1.625);
writer.writeBool(false);
writer.writeBool(true);
writer.writeString("abc");
writer.writeLengthPrefixedString("ABC");
writer.writeLengthPrefixedString("012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
"123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901"
"234567890123456789012345678901234567890123456789012345678901234567890123456789");
writer.writeTerminatedString("def");
// test written values
for (char c : testData) {
CPPUNIT_ASSERT(c == static_cast<char>(testFile.get()));
}
// test ownership
writer.setStream(nullptr, true);
writer.setStream(new fstream(), true);
BinaryWriter writer2(writer);
CPPUNIT_ASSERT(writer2.stream() == writer.stream());
CPPUNIT_ASSERT(!writer2.hasOwnership());
writer.setStream(&testFile, false);
writer.setStream(new fstream(), true);
}
/*!
* \brief Tests the BitReader.
*/
void IoTests::testBitReader()
{
const byte testData[] = { 0x81, 0x90, 0x3C, 0x44, 0x28, 0x00, 0x44, 0x10, 0x20, 0xFF, 0xFA };
BitReader reader(reinterpret_cast<const char *>(testData), sizeof(testData));
CPPUNIT_ASSERT(reader.readBit() == 1);
reader.skipBits(6);
CPPUNIT_ASSERT_EQUAL(static_cast<byte>(3), reader.showBits<byte>(2));
CPPUNIT_ASSERT_EQUAL(static_cast<byte>(3), reader.readBits<byte>(2));
CPPUNIT_ASSERT_EQUAL(static_cast<uint32>(0x103C4428 << 1), reader.readBits<uint32>(32));
reader.align();
CPPUNIT_ASSERT_EQUAL(static_cast<byte>(0x44), reader.readBits<byte>(8));
CPPUNIT_ASSERT_EQUAL(static_cast<byte>(7), reader.readUnsignedExpGolombCodedBits<byte>());
CPPUNIT_ASSERT_EQUAL(static_cast<sbyte>(4), reader.readSignedExpGolombCodedBits<sbyte>());
CPPUNIT_ASSERT_EQUAL(static_cast<byte>(0), reader.readBit());
CPPUNIT_ASSERT_EQUAL(static_cast<byte>(0), reader.readBit());
reader.skipBits(8 + 4);
CPPUNIT_ASSERT_EQUAL(4_st, reader.bitsAvailable());
CPPUNIT_ASSERT_EQUAL(static_cast<byte>(0xA), reader.readBits<byte>(4));
try {
reader.readBit();
CPPUNIT_FAIL("no exception");
} catch (...) {
catchIoFailure();
}
try {
reader.skipBits(1);
CPPUNIT_FAIL("no exception");
} catch (...) {
catchIoFailure();
}
reader.reset(reinterpret_cast<const char *>(testData), sizeof(testData));
CPPUNIT_ASSERT_EQUAL(static_cast<std::size_t>(8 * sizeof(testData)), reader.bitsAvailable());
}
/*!
* \brief Tests fileName() and removeInvalidChars().
*/
void IoTests::testPathUtilities()
{
CPPUNIT_ASSERT_EQUAL("libc++utilities.so"s, fileName("C:\\libs\\libc++utilities.so"));
CPPUNIT_ASSERT_EQUAL("libc++utilities.so"s, fileName("C:\\libs/libc++utilities.so"));
CPPUNIT_ASSERT_EQUAL("libc++utilities.so"s, fileName("/usr/lib/libc++utilities.so"));
CPPUNIT_ASSERT_EQUAL("/usr/lib/"s, directory("/usr/lib/libc++utilities.so"));
CPPUNIT_ASSERT_EQUAL(string(), directory("libc++utilities.so"));
CPPUNIT_ASSERT_EQUAL("C:\\libs\\"s, directory("C:\\libs\\libc++utilities.so"));
CPPUNIT_ASSERT_EQUAL("C:\\libs/"s, directory("C:\\libs/libc++utilities.so"));
string invalidPath("lib/c++uti*lities.so?");
removeInvalidChars(invalidPath);
CPPUNIT_ASSERT(invalidPath == "libc++utilities.so");
#ifdef PLATFORM_UNIX
const string iniFilePath = TestUtilities::testFilePath("test.ini");
const string testFilesDir = iniFilePath.substr(0, iniFilePath.size() - 9);
auto testFilesDirEntries = directoryEntries(testFilesDir.c_str(), DirectoryEntryType::All);
CPPUNIT_ASSERT(find(testFilesDirEntries.cbegin(), testFilesDirEntries.cend(), "test.ini") != testFilesDirEntries.cend());
CPPUNIT_ASSERT(find(testFilesDirEntries.cbegin(), testFilesDirEntries.cend(), ".") != testFilesDirEntries.cend());
CPPUNIT_ASSERT(find(testFilesDirEntries.cbegin(), testFilesDirEntries.cend(), "..") != testFilesDirEntries.cend());
testFilesDirEntries = directoryEntries(testFilesDir.c_str(), DirectoryEntryType::Directory);
CPPUNIT_ASSERT(find(testFilesDirEntries.cbegin(), testFilesDirEntries.cend(), "test.ini") == testFilesDirEntries.cend());
CPPUNIT_ASSERT(find(testFilesDirEntries.cbegin(), testFilesDirEntries.cend(), ".") != testFilesDirEntries.cend());
CPPUNIT_ASSERT(find(testFilesDirEntries.cbegin(), testFilesDirEntries.cend(), "..") != testFilesDirEntries.cend());
testFilesDirEntries = directoryEntries(testFilesDir.c_str(), DirectoryEntryType::File);
CPPUNIT_ASSERT(find(testFilesDirEntries.cbegin(), testFilesDirEntries.cend(), "test.ini") != testFilesDirEntries.cend());
CPPUNIT_ASSERT(find(testFilesDirEntries.cbegin(), testFilesDirEntries.cend(), ".") == testFilesDirEntries.cend());
CPPUNIT_ASSERT(find(testFilesDirEntries.cbegin(), testFilesDirEntries.cend(), "..") == testFilesDirEntries.cend());
#endif
}
/*!
* \brief Tests IniFile.
*/
void IoTests::testIniFile()
{
// prepare reading test file
fstream inputFile;
inputFile.exceptions(ios_base::failbit | ios_base::badbit);
inputFile.open(TestUtilities::testFilePath("test.ini"), ios_base::in);
IniFile ini;
ini.parse(inputFile);
const auto globalScope = ini.data().at(0);
const auto scope1 = ini.data().at(1);
const auto scope2 = ini.data().at(2);
CPPUNIT_ASSERT(globalScope.first.empty());
CPPUNIT_ASSERT(globalScope.second.find("key0") != globalScope.second.cend());
CPPUNIT_ASSERT(globalScope.second.find("key0")->second == "value 0");
CPPUNIT_ASSERT(globalScope.second.find("key1") == globalScope.second.cend());
CPPUNIT_ASSERT(scope1.first == "scope 1");
CPPUNIT_ASSERT(scope1.second.find("key1") != scope1.second.cend());
CPPUNIT_ASSERT(scope1.second.find("key1")->second == "value 1");
CPPUNIT_ASSERT(scope1.second.find("key2") != scope1.second.cend());
CPPUNIT_ASSERT(scope1.second.find("key2")->second == "value=2");
CPPUNIT_ASSERT(scope2.first == "scope 2");
CPPUNIT_ASSERT(scope2.second.find("key5") == scope2.second.cend());
// write values to another file
fstream outputFile;
outputFile.exceptions(ios_base::failbit | ios_base::badbit);
outputFile.open(workingCopyPathMode("output.ini", WorkingCopyMode::NoCopy), ios_base::out | ios_base::trunc);
ini.make(outputFile);
// parse written values (again)
outputFile.close();
outputFile.open(workingCopyPathMode("output.ini", WorkingCopyMode::NoCopy), ios_base::in);
IniFile ini2;
ini2.parse(outputFile);
CPPUNIT_ASSERT(ini.data() == ini2.data());
}
/*!
* \brief Tests CopyHelper.
*/
void IoTests::testCopy()
{
// prepare streams
fstream testFile;
testFile.exceptions(ios_base::failbit | ios_base::badbit);
testFile.open(TestUtilities::testFilePath("some_data"), ios_base::in | ios_base::binary);
stringstream outputStream(ios_base::in | ios_base::out | ios_base::binary);
outputStream.exceptions(ios_base::failbit | ios_base::badbit);
// copy
CopyHelper<13> copyHelper;
copyHelper.copy(testFile, outputStream, 50);
// test
testFile.seekg(0);
for (byte i = 0; i < 50; ++i) {
CPPUNIT_ASSERT(testFile.get() == outputStream.get());
}
}
/*!
* \brief Tests readFile().
*/
void IoTests::testReadFile()
{
// read a file successfully
const string iniFilePath(testFilePath("test.ini"));
CPPUNIT_ASSERT_EQUAL("# file for testing INI parser\n"
"key0=value 0\n"
"\n"
"[scope 1]\n"
"key1=value 1 # comment\n"
"key2=value=2\n"
"key3=value 3\n"
"\n"
"[scope 2]\n"
"key4=value 4\n"
"#key5=value 5\n"
"key6=value 6\n"s,
readFile(iniFilePath));
// fail by exceeding max size
try {
readFile(iniFilePath, 10);
CPPUNIT_FAIL("no exception");
} catch (...) {
catchIoFailure();
}
// handle UTF-8 in path and file contents correctly via NativeFileStream
#if !defined(PLATFORM_WINDOWS) || defined(CPP_UTILITIES_USE_NATIVE_FILE_BUFFER)
CPPUNIT_ASSERT_EQUAL("file with non-ASCII character 'ä' in its name\n"s, readFile(testFilePath("täst.txt")));
#endif
}
void IoTests::testAnsiEscapeCodes()
{
stringstream ss1;
EscapeCodes::enabled = true;
ss1 << EscapeCodes::Phrases::Error << "some error" << EscapeCodes::Phrases::End;
ss1 << EscapeCodes::Phrases::Warning << "some warning" << EscapeCodes::Phrases::End;
ss1 << EscapeCodes::Phrases::Info << "some info" << EscapeCodes::Phrases::End;
ss1 << EscapeCodes::Phrases::ErrorMessage << "Arch-style error" << EscapeCodes::Phrases::End;
ss1 << EscapeCodes::Phrases::WarningMessage << "Arch-style warning" << EscapeCodes::Phrases::End;
ss1 << EscapeCodes::Phrases::PlainMessage << "Arch-style message" << EscapeCodes::Phrases::End;
ss1 << EscapeCodes::Phrases::SuccessMessage << "Arch-style success" << EscapeCodes::Phrases::End;
ss1 << EscapeCodes::Phrases::SubMessage << "Arch-style sub-message" << EscapeCodes::Phrases::End;
ss1 << EscapeCodes::color(EscapeCodes::Color::Blue, EscapeCodes::Color::Red, EscapeCodes::TextAttribute::Blink)
<< "blue, blinking text on red background" << EscapeCodes::TextAttribute::Reset << '\n';
cout << "\noutput for formatting with ANSI escape codes:\n" << ss1.str() << "---------------------------------------------\n";
fstream("/tmp/test.txt", ios_base::out | ios_base::trunc) << ss1.str();
CPPUNIT_ASSERT_EQUAL("\e[1;31mError: \e[0m\e[1msome error\e[0m\n"
"\e[1;33mWarning: \e[0m\e[1msome warning\e[0m\n"
"\e[1;34mInfo: \e[0m\e[1msome info\e[0m\n"
"\e[1;31m==> ERROR: \e[0m\e[1mArch-style error\e[0m\n"
"\e[1;33m==> WARNING: \e[0m\e[1mArch-style warning\e[0m\n"
" \e[0m\e[1mArch-style message\e[0m\n"
"\e[1;32m==> \e[0m\e[1mArch-style success\e[0m\n"
"\e[1;32m -> \e[0m\e[1mArch-style sub-message\e[0m\n"
"\e[5;34;41mblue, blinking text on red background\e[0m\n"s,
ss1.str());
stringstream ss2;
EscapeCodes::enabled = false;
ss2 << EscapeCodes::Phrases::Info << "some info" << EscapeCodes::Phrases::End;
CPPUNIT_ASSERT_EQUAL("Info: some info\n"s, ss2.str());
}
#ifdef CPP_UTILITIES_USE_NATIVE_FILE_BUFFER
/*!
* \brief Tests the NativeFileStream class.
*/
void IoTests::testNativeFileStream()
{
// open file by path
const auto txtFilePath(workingCopyPath("täst.txt"));
NativeFileStream fileStream;
fileStream.exceptions(ios_base::badbit | ios_base::failbit);
CPPUNIT_ASSERT(!fileStream.is_open());
fileStream.open(txtFilePath, ios_base::in);
CPPUNIT_ASSERT(fileStream.is_open());
CPPUNIT_ASSERT_EQUAL(static_cast<char>(fileStream.get()), 'f');
fileStream.seekg(0, ios_base::end);
CPPUNIT_ASSERT_EQUAL(fileStream.tellg(), static_cast<NativeFileStream::pos_type>(47));
fileStream.close();
CPPUNIT_ASSERT(!fileStream.is_open());
try {
fileStream.open("non existing file", ios_base::in | ios_base::out | ios_base::binary);
CPPUNIT_FAIL("expected exception");
} catch (...) {
const string msg = catchIoFailure();
#if defined(PLATFORM_UNIX)
CPPUNIT_ASSERT_EQUAL(msg, "open failed: iostream error"s);
#elif defined(PLATFORM_WINDOWS)
CPPUNIT_ASSERT_EQUAL(msg, "CreateFileW failed: iostream error"s);
#endif
}
fileStream.clear();
// open file from file descriptor
#if defined(PLATFORM_UNIX)
auto readWriteFileDescriptor = open(txtFilePath.data(), O_RDWR);
CPPUNIT_ASSERT(readWriteFileDescriptor);
fileStream.openFromFileDescriptor(readWriteFileDescriptor, ios_base::in | ios_base::out | ios_base::binary);
CPPUNIT_ASSERT(fileStream.is_open());
CPPUNIT_ASSERT_EQUAL(static_cast<char>(fileStream.get()), 'f');
fileStream.seekg(0, ios_base::end);
CPPUNIT_ASSERT_EQUAL(fileStream.tellg(), static_cast<NativeFileStream::pos_type>(47));
fileStream.flush();
fileStream.close();
CPPUNIT_ASSERT(!fileStream.is_open());
#endif
try {
fileStream.openFromFileDescriptor(-1, ios_base::in | ios_base::out | ios_base::binary);
fileStream.get();
CPPUNIT_FAIL("expected exception");
} catch (...) {
const string msg = catchIoFailure();
TESTUTILS_ASSERT_LIKE("expected error message", "(fdopen failed|failed reading: Bad file descriptor): iostream error", msg);
}
fileStream.clear();
// append + write file via path
cout << "append + write file via path" << endl;
NativeFileStream fileStream2;
fileStream2.exceptions(ios_base::failbit | ios_base::badbit);
fileStream2.open(txtFilePath, ios_base::in | ios_base::out | ios_base::app);
CPPUNIT_ASSERT(fileStream2.is_open());
fileStream2 << "foo";
fileStream2.flush();
fileStream2.close();
CPPUNIT_ASSERT(!fileStream2.is_open());
CPPUNIT_ASSERT_EQUAL("file with non-ASCII character 'ä' in its name\nfoo"s, readFile(txtFilePath, 50));
// truncate + write file via path
fileStream2.open(txtFilePath, ios_base::out | ios_base::trunc);
CPPUNIT_ASSERT(fileStream2.is_open());
fileStream2 << "bar";
fileStream2.close();
CPPUNIT_ASSERT(!fileStream2.is_open());
CPPUNIT_ASSERT_EQUAL("bar"s, readFile(txtFilePath, 4));
// append + write via file descriptor from file handle
const auto appendFileHandle = fopen(txtFilePath.data(), "a");
CPPUNIT_ASSERT(appendFileHandle);
fileStream2.openFromFileDescriptor(fileno(appendFileHandle), ios_base::out | ios_base::app);
CPPUNIT_ASSERT(fileStream2.is_open());
fileStream2 << "foo";
fileStream2.close();
CPPUNIT_ASSERT(!fileStream2.is_open());
CPPUNIT_ASSERT_EQUAL("barfoo"s, readFile(txtFilePath, 7));
}
#endif