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/buffersearch.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_WINDOWS
#include <cstdio>
#endif
#ifdef PLATFORM_UNIX
#include <sys/fcntl.h>
#include <sys/types.h>
#endif
using namespace std;
using namespace CppUtilities;
using namespace CppUtilities::Literals;
using namespace CPPUNIT_NS;
/*!
* \brief The IoTests class tests classes and functions provided by the files inside the io directory.
*/
class IoTests : public TestFixture {
CPPUNIT_TEST_SUITE(IoTests);
CPPUNIT_TEST(testBinaryReader);
CPPUNIT_TEST(testBinaryWriter);
CPPUNIT_TEST(testBitReader);
CPPUNIT_TEST(testBufferSearch);
CPPUNIT_TEST(testPathUtilities);
CPPUNIT_TEST(testIniFile);
CPPUNIT_TEST(testAdvancedIniFile);
CPPUNIT_TEST(testCopy);
CPPUNIT_TEST(testReadFile);
CPPUNIT_TEST(testWriteFile);
CPPUNIT_TEST(testAnsiEscapeCodes);
#ifdef CPP_UTILITIES_USE_NATIVE_FILE_BUFFER
CPPUNIT_TEST(testNativeFileStream);
#endif
CPPUNIT_TEST_SUITE_END();
public:
void setUp() override;
void tearDown() override;
void testBinaryReader();
void testBinaryWriter();
void testBitReader();
void testBufferSearch();
void testPathUtilities();
void testIniFile();
void testAdvancedIniFile();
void testCopy();
void testReadFile();
void testWriteFile();
void testAnsiEscapeCodes();
#ifdef CPP_UTILITIES_USE_NATIVE_FILE_BUFFER
void testNativeFileStream();
#endif
};
CPPUNIT_TEST_SUITE_REGISTRATION(IoTests);
void IoTests::setUp()
{
}
void IoTests::tearDown()
{
}
/*!
* \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(testFilePath("some_data"), ios_base::in | ios_base::binary);
BinaryReader reader(&testFile);
CPPUNIT_ASSERT_EQUAL(static_cast<istream::pos_type>(398), reader.readStreamsize());
CPPUNIT_ASSERT_EQUAL(static_cast<std::uint16_t>(0x0102u), reader.readUInt16LE());
CPPUNIT_ASSERT_EQUAL(static_cast<istream::pos_type>(396), reader.readRemainingBytes());
CPPUNIT_ASSERT_EQUAL(static_cast<std::uint16_t>(0x0102u), reader.readUInt16BE());
CPPUNIT_ASSERT_EQUAL(0x010203u, reader.readUInt24LE());
CPPUNIT_ASSERT_EQUAL(0x010203u, reader.readUInt24BE());
CPPUNIT_ASSERT_EQUAL(0x01020304u, reader.readUInt32LE());
CPPUNIT_ASSERT_EQUAL(0x01020304u, reader.readUInt32BE());
CPPUNIT_ASSERT_EQUAL(0x0102030405u, reader.readUInt40LE());
CPPUNIT_ASSERT_EQUAL(0x0102030405u, reader.readUInt40BE());
CPPUNIT_ASSERT_EQUAL(0x01020304050607u, reader.readUInt56LE());
CPPUNIT_ASSERT_EQUAL(0x01020304050607u, reader.readUInt56BE());
CPPUNIT_ASSERT_EQUAL(0x0102030405060708u, reader.readUInt64LE());
CPPUNIT_ASSERT_EQUAL(0x0102030405060708u, reader.readUInt64BE());
testFile.seekg(0);
CPPUNIT_ASSERT_EQUAL(reader.readInt16LE(), static_cast<std::int16_t>(0x0102));
CPPUNIT_ASSERT_EQUAL(reader.readInt16BE(), static_cast<std::int16_t>(0x0102));
CPPUNIT_ASSERT_EQUAL(0x010203, reader.readInt24LE());
CPPUNIT_ASSERT_EQUAL(0x010203, reader.readInt24BE());
CPPUNIT_ASSERT_EQUAL(0x01020304, reader.readInt32LE());
CPPUNIT_ASSERT_EQUAL(0x01020304, reader.readInt32BE());
CPPUNIT_ASSERT_EQUAL(0x0102030405, reader.readInt40LE());
CPPUNIT_ASSERT_EQUAL(0x0102030405, reader.readInt40BE());
CPPUNIT_ASSERT_EQUAL(0x01020304050607, reader.readInt56LE());
CPPUNIT_ASSERT_EQUAL(0x01020304050607, reader.readInt56BE());
CPPUNIT_ASSERT_EQUAL(0x0102030405060708, reader.readInt64LE());
CPPUNIT_ASSERT_EQUAL(0x0102030405060708, reader.readInt64BE());
CPPUNIT_ASSERT_EQUAL(1.125f, reader.readFloat32LE());
CPPUNIT_ASSERT_EQUAL(1.625, reader.readFloat64LE());
CPPUNIT_ASSERT_EQUAL(1.125f, reader.readFloat32BE());
CPPUNIT_ASSERT_EQUAL(reader.readFloat64BE(), 1.625);
CPPUNIT_ASSERT_EQUAL(false, reader.readBool());
CPPUNIT_ASSERT_EQUAL(true, reader.readBool());
CPPUNIT_ASSERT_EQUAL("abc"s, reader.readString(3));
CPPUNIT_ASSERT_EQUAL(reader.readLengthPrefixedString(), "ABC"s);
CPPUNIT_ASSERT_EQUAL("01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901"
"23456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123"
"45678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345"
"678901234567890123456789"s,
reader.readLengthPrefixedString());
CPPUNIT_ASSERT_EQUAL("def"s, reader.readTerminatedString());
testFile.seekg(-4, ios_base::cur);
CPPUNIT_ASSERT_EQUAL("def"s, reader.readTerminatedString(5, 0));
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(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 class.
*/
void IoTests::testBitReader()
{
const std::uint8_t 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<std::uint8_t>(3), reader.showBits<std::uint8_t>(2));
CPPUNIT_ASSERT_EQUAL(static_cast<std::uint8_t>(3), reader.readBits<std::uint8_t>(2));
CPPUNIT_ASSERT_EQUAL(static_cast<std::uint32_t>(0x103C4428 << 1), reader.readBits<std::uint32_t>(32));
reader.align();
CPPUNIT_ASSERT_EQUAL(static_cast<std::uint8_t>(0x44), reader.readBits<std::uint8_t>(8));
CPPUNIT_ASSERT_EQUAL(static_cast<std::uint8_t>(7), reader.readUnsignedExpGolombCodedBits<std::uint8_t>());
CPPUNIT_ASSERT_EQUAL(static_cast<std::int8_t>(4), reader.readSignedExpGolombCodedBits<std::int8_t>());
CPPUNIT_ASSERT_EQUAL(static_cast<std::uint8_t>(0), reader.readBit());
CPPUNIT_ASSERT_EQUAL(static_cast<std::uint8_t>(0), reader.readBit());
reader.skipBits(8 + 4);
CPPUNIT_ASSERT_EQUAL(4_st, reader.bitsAvailable());
CPPUNIT_ASSERT_EQUAL(static_cast<std::uint8_t>(0xA), reader.readBits<std::uint8_t>(4));
CPPUNIT_ASSERT_THROW(reader.readBit(), std::ios_base::failure);
CPPUNIT_ASSERT_THROW(reader.skipBits(1), std::ios_base::failure);
reader.reset(reinterpret_cast<const char *>(testData), sizeof(testData));
CPPUNIT_ASSERT_EQUAL(static_cast<std::size_t>(8 * sizeof(testData)), reader.bitsAvailable());
}
/*!
* \brief Tests the BufferSearch class.
*/
void IoTests::testBufferSearch()
{
// setup search to test
auto expectedResult = std::string();
auto hasResult = false;
auto bs = BufferSearch("Updated version: ", "\e\n", "Starting build", [&](BufferSearch &, std::string &&result) {
CPPUNIT_ASSERT_EQUAL(expectedResult, result);
CPPUNIT_ASSERT_MESSAGE("callback only invoked once", !hasResult);
hasResult = true;
});
// feed data into the search
char buffer[30];
bs(buffer, 0);
CPPUNIT_ASSERT(!hasResult);
std::strcpy(buffer, "Starting Updated");
bs(std::string_view(buffer, 16));
CPPUNIT_ASSERT(!hasResult);
std::strcpy(buffer, " version: some ");
bs(buffer, 15);
CPPUNIT_ASSERT(!hasResult);
expectedResult = "some version number";
std::strcpy(buffer, "version number\emore chars");
bs(buffer, 25);
CPPUNIT_ASSERT(hasResult);
hasResult = false;
std::strcpy(buffer, "... Starting build ...");
bs(buffer, 22);
CPPUNIT_ASSERT(!hasResult);
}
/*!
* \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("libc++utilities.so"s, fileName("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");
}
/*!
* \brief Tests IniFile.
*/
void IoTests::testIniFile()
{
// prepare reading test file
fstream inputFile;
inputFile.exceptions(ios_base::failbit | ios_base::badbit);
inputFile.open(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(workingCopyPath("output.ini", WorkingCopyMode::NoCopy), ios_base::out | ios_base::trunc);
ini.make(outputFile);
// parse written values (again)
outputFile.close();
outputFile.open(workingCopyPath("output.ini", WorkingCopyMode::NoCopy), ios_base::in);
IniFile ini2;
ini2.parse(outputFile);
CPPUNIT_ASSERT(ini.data() == ini2.data());
}
/*!
* \brief Tests AdvancedIniFile.
*/
void IoTests::testAdvancedIniFile()
{
// prepare reading test file
fstream inputFile;
inputFile.exceptions(ios_base::failbit | ios_base::badbit);
inputFile.open(testFilePath("pacman.conf"), ios_base::in);
// parse the test file
AdvancedIniFile ini;
ini.parse(inputFile);
// check whether scope data is as expected
CPPUNIT_ASSERT_EQUAL_MESSAGE("5 scopes (taking implicit empty section at the end into account)", 5_st, ini.sections.size());
auto options = ini.findSection("options");
CPPUNIT_ASSERT(options != ini.sectionEnd());
TESTUTILS_ASSERT_LIKE_FLAGS(
"comment block before section", "# Based on.*\n.*# GENERAL OPTIONS\n#\n"s, std::regex::extended, options->precedingCommentBlock);
CPPUNIT_ASSERT_EQUAL(7_st, options->fields.size());
CPPUNIT_ASSERT_EQUAL("HoldPkg"s, options->fields[0].key);
CPPUNIT_ASSERT_EQUAL("pacman glibc"s, options->fields[0].value);
CPPUNIT_ASSERT_MESSAGE("value present", options->fields[0].flags & IniFileFieldFlags::HasValue);
TESTUTILS_ASSERT_LIKE_FLAGS("comment block between section header and first field",
"# The following paths are.*\n.*#HookDir = /etc/pacman\\.d/hooks/\n"s, std::regex::extended, options->fields[0].precedingCommentBlock);
CPPUNIT_ASSERT_EQUAL(""s, options->fields[0].followingInlineComment);
CPPUNIT_ASSERT_EQUAL("Foo"s, options->fields[1].key);
CPPUNIT_ASSERT_EQUAL("bar"s, options->fields[1].value);
CPPUNIT_ASSERT_MESSAGE("value present", options->fields[1].flags & IniFileFieldFlags::HasValue);
TESTUTILS_ASSERT_LIKE_FLAGS("comment block between fields", "#XferCommand.*\n.*#CleanMethod = KeepInstalled\n"s, std::regex::extended,
options->fields[1].precedingCommentBlock);
CPPUNIT_ASSERT_EQUAL("# inline comment"s, options->fields[1].followingInlineComment);
CPPUNIT_ASSERT_EQUAL("CheckSpace"s, options->fields[3].key);
CPPUNIT_ASSERT_EQUAL(""s, options->fields[3].value);
CPPUNIT_ASSERT_MESSAGE("no value present", !(options->fields[3].flags & IniFileFieldFlags::HasValue));
TESTUTILS_ASSERT_LIKE_FLAGS("empty lines in comments preserved", "\n# Pacman.*\n.*\n\n#NoUpgrade =\n.*#TotalDownload\n"s, std::regex::extended,
options->fields[3].precedingCommentBlock);
CPPUNIT_ASSERT_EQUAL(""s, options->fields[3].followingInlineComment);
auto extraScope = ini.findSection(options, "extra");
CPPUNIT_ASSERT(extraScope != ini.sectionEnd());
CPPUNIT_ASSERT_EQUAL_MESSAGE("comment block which is only an empty line", "\n"s, extraScope->precedingCommentBlock);
CPPUNIT_ASSERT_EQUAL_MESSAGE("inline comment after scope", "# an inline comment after a scope name"s, extraScope->followingInlineComment);
CPPUNIT_ASSERT_EQUAL(1_st, extraScope->fields.size());
CPPUNIT_ASSERT(ini.sections.back().flags & IniFileSectionFlags::Implicit);
TESTUTILS_ASSERT_LIKE_FLAGS("comment block after last field present in implicitly added last scope", "\n# If you.*\n.*custompkgs\n"s,
std::regex::extended, ini.sections.back().precedingCommentBlock);
// test finding a field from file level and const access
const auto *const constIniFile = &ini;
auto includeField = constIniFile->findField("extra", "Include");
CPPUNIT_ASSERT(includeField.has_value());
CPPUNIT_ASSERT_EQUAL("Include"s, includeField.value()->key);
CPPUNIT_ASSERT_EQUAL("/etc/pacman.d/mirrorlist"s, includeField.value()->value);
CPPUNIT_ASSERT_MESSAGE("field not present", !constIniFile->findField("extra", "Includ").has_value());
CPPUNIT_ASSERT_MESSAGE("scope not present", !constIniFile->findField("extr", "Includ").has_value());
// write values again; there shouldn't be a difference as the parser and the writer are supposed to
// preserve the order of all elements and comments
std::stringstream newFile;
ini.make(newFile);
std::string originalContents;
inputFile.clear();
inputFile.seekg(std::ios_base::beg);
originalContents.assign((istreambuf_iterator<char>(inputFile)), istreambuf_iterator<char>());
CPPUNIT_ASSERT_EQUAL(originalContents, newFile.str());
}
/*!
* \brief Tests CopyHelper.
*/
void IoTests::testCopy()
{
// prepare streams
fstream testFile;
testFile.exceptions(ios_base::failbit | ios_base::badbit);
testFile.open(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 (auto 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
CPPUNIT_ASSERT_THROW(readFile(iniFilePath, 10), std::ios_base::failure);
// 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
}
/*!
* \brief Tests writeFile().
*/
void IoTests::testWriteFile()
{
const string path(workingCopyPath("test.ini", WorkingCopyMode::NoCopy));
writeFile(path, "some contents");
CPPUNIT_ASSERT_EQUAL("some contents"s, readFile(path));
}
/*!
* \brief Tests formatting functions of CppUtilities::EscapeCodes namespace.
*/
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());
#if defined(PLATFORM_WINDOWS) && defined(CPP_UTILITIES_USE_BOOST_IOSTREAMS)
CPPUNIT_ASSERT(fileStream.fileHandle() != nullptr);
#else
CPPUNIT_ASSERT(fileStream.fileDescriptor() != -1);
#endif
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 std::ios_base::failure &failure) {
#ifdef PLATFORM_WINDOWS
#ifdef CPP_UTILITIES_USE_BOOST_IOSTREAMS
TESTUTILS_ASSERT_LIKE("expected error with some message", "CreateFileW failed: .+", failure.what());
#else
TESTUTILS_ASSERT_LIKE("expected error with some message", "_wopen failed: .+", failure.what());
#endif
#else
TESTUTILS_ASSERT_LIKE("expected error with some message", "open failed: .+", failure.what());
#endif
}
fileStream.clear();
// open file from file descriptor
#ifndef PLATFORM_WINDOWS
auto readWriteFileDescriptor = open(txtFilePath.data(), O_RDWR);
CPPUNIT_ASSERT(readWriteFileDescriptor);
fileStream.open(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.open(-1, ios_base::in | ios_base::out | ios_base::binary);
fileStream.get();
CPPUNIT_FAIL("expected exception");
} catch (const std::ios_base::failure &failure) {
#ifndef PLATFORM_WINDOWS
TESTUTILS_ASSERT_LIKE(
"expected error message", "(basic_ios::clear|failed reading: Bad file descriptor): iostream error"s, string(failure.what()));
#else
CPP_UTILITIES_UNUSED(failure)
#endif
}
fileStream.clear();
// append + write file via path
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
#ifdef PLATFORM_WINDOWS
const auto wideTxtFilePath = NativeFileStream::makeWidePath(txtFilePath);
const auto appendFileHandle = _wfopen(wideTxtFilePath.get(), L"a+");
#else
const auto appendFileHandle = fopen(txtFilePath.data(), "a");
#endif
CPPUNIT_ASSERT(appendFileHandle);
fileStream2.open(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