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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <QTest>
#include <QtGlobal>
#include <QtAlgorithms>
#include <QtPrintSupport/qprinterinfo.h>
#include <algorithm>
#if defined(Q_OS_UNIX) && !defined(Q_OS_INTEGRITY)
# include <unistd.h>
# include <sys/types.h>
# include <sys/wait.h>
# define USE_PIPE_EXEC
#endif
class tst_QPrinterInfo : public QObject
{
Q_OBJECT
public slots:
#ifdef QT_NO_PRINTER
void initTestCase();
void cleanupTestCase();
#else
private slots:
#ifndef Q_OS_WIN32
void testForDefaultPrinter();
void testForPrinters();
#endif
void testForPaperSizes();
void testConstructors();
void testAssignment();
void namedPrinter();
private:
QString getDefaultPrinterFromSystem();
QStringList getPrintersFromSystem();
#ifdef USE_PIPE_EXEC
QString getOutputFromCommand(const QStringList& command);
#endif // USE_PIPE_EXEC
#endif
};
#ifdef QT_NO_PRINTER
void tst_QPrinterInfo::initTestCase()
{
QSKIP("This test requires printing support");
}
void tst_QPrinterInfo::cleanupTestCase()
{
QSKIP("This test requires printing support");
}
#else
QString tst_QPrinterInfo::getDefaultPrinterFromSystem()
{
QString printer;
#ifdef Q_OS_WIN32
// TODO "cscript c:\windows\system32\prnmngr.vbs -g"
#endif // Q_OS_WIN32
#ifdef USE_PIPE_EXEC
QStringList command;
command << "lpstat" << "-d";
QString output = getOutputFromCommand(command);
QRegularExpression noDefaultReg("[^:]*no .*default");
QRegularExpressionMatch match;
match = noDefaultReg.match(output);
if (match.hasMatch())
return QString();
QRegularExpression defaultReg("default.*: *([a-zA-Z0-9_-]+)");
match = defaultReg.match(output);
printer = match.captured(1);
#endif // USE_PIPE_EXEC
return printer;
}
QStringList tst_QPrinterInfo::getPrintersFromSystem()
{
QStringList ans;
#ifdef Q_OS_WIN32
// TODO "cscript c:\windows\system32\prnmngr.vbs -l"
#endif // Q_OS_WIN32
#ifdef USE_PIPE_EXEC
QString output = getOutputFromCommand({ "lpstat", "-e" });
QStringList list = output.split(QChar::fromLatin1('\n'));
QRegularExpression reg("^([.a-zA-Z0-9-_@]+)");
QRegularExpressionMatch match;
for (int c = 0; c < list.size(); ++c) {
match = reg.match(list[c]);
if (match.hasMatch()) {
QString printer = match.captured(1);
ans << printer;
}
}
#endif // USE_PIPE_EXEC
return ans;
}
#ifdef USE_PIPE_EXEC
// This function does roughly the same as the `command substitution` in
// the shell.
QString getOutputFromCommandInternal(const QStringList &command)
{
// The command execution does nothing on non-unix systems.
int pid;
int status = 0;
int pipePtr[2];
// Create a pipe that is shared between parent and child process.
if (pipe(pipePtr) < 0) {
return QString();
}
pid = fork();
if (pid < 0) {
close(pipePtr[0]);
close(pipePtr[1]);
return QString();
} else if (pid == 0) {
// In child.
// Close the reading end.
close(pipePtr[0]);
// Redirect stdout to the pipe.
if (dup2(pipePtr[1], 1) < 0) {
exit(1);
}
char** argv = new char*[command.size()+1];
for (int c = 0; c < command.size(); ++c) {
argv[c] = new char[command[c].size()+1];
strcpy(argv[c], command[c].toLatin1().data());
}
argv[command.size()] = NULL;
execvp(argv[0], argv);
// Shouldn't get here, but it's possible if command is not found.
close(pipePtr[1]);
close(1);
for (int c = 0; c < command.size(); ++c) {
delete [] argv[c];
}
delete [] argv;
exit(1);
} else {
// In parent.
// Close the writing end.
close(pipePtr[1]);
QFile pipeRead;
if (!pipeRead.open(pipePtr[0], QIODevice::ReadOnly)) {
close(pipePtr[0]);
return QString();
}
QByteArray array;
array = pipeRead.readAll();
pipeRead.close();
close(pipePtr[0]);
wait(&status);
return QString(array);
}
}
QString tst_QPrinterInfo::getOutputFromCommand(const QStringList &command)
{
// Forces the ouptut from the command to be in English
const QByteArray origSoftwareEnv = qgetenv("SOFTWARE");
qputenv("SOFTWARE", QByteArray());
QString output = getOutputFromCommandInternal(command);
qputenv("SOFTWARE", origSoftwareEnv);
return output;
}
#endif
// Windows test support not yet implemented
#ifndef Q_OS_WIN32
void tst_QPrinterInfo::testForDefaultPrinter()
{
QString testPrinter = getDefaultPrinterFromSystem();
QString defaultPrinter = QPrinterInfo::defaultPrinter().printerName();
QString availablePrinter;
int availablePrinterDefaults = 0;
QList<QPrinterInfo> list = QPrinterInfo::availablePrinters();
for (int c = 0; c < list.size(); ++c) {
if (list[c].isDefault()) {
availablePrinter = list.at(c).printerName();
++availablePrinterDefaults;
}
}
qDebug() << "Test believes Default Printer = " << testPrinter;
qDebug() << "QPrinterInfo::defaultPrinter() believes Default Printer = " << defaultPrinter;
qDebug() << "QPrinterInfo::availablePrinters() believes Default Printer = " << availablePrinter;
QCOMPARE(testPrinter, defaultPrinter);
QCOMPARE(testPrinter, availablePrinter);
if (!availablePrinter.isEmpty())
QCOMPARE(availablePrinterDefaults, 1);
}
#endif
// Windows test support not yet implemented
#ifndef Q_OS_WIN32
void tst_QPrinterInfo::testForPrinters()
{
QStringList testPrinters = getPrintersFromSystem();
QList<QPrinterInfo> printers = QPrinterInfo::availablePrinters();
QStringList qtPrinters;
for (int i = 0; i < printers.size(); ++i)
qtPrinters.append(printers.at(i).printerName());
std::sort(testPrinters.begin(), testPrinters.end());
std::sort(qtPrinters.begin(), qtPrinters.end());
qDebug() << "Test believes Available Printers = " << testPrinters;
qDebug() << "QPrinterInfo::availablePrinters() believes Available Printers = " << qtPrinters;
QCOMPARE(qtPrinters.size(), testPrinters.size());
for (int i = 0; i < testPrinters.size(); ++i)
QCOMPARE(qtPrinters.at(i), testPrinters.at(i));
}
#endif
void tst_QPrinterInfo::testForPaperSizes()
{
// TODO Old PaperSize test dependent on physical printer installed, new generic test required
// In the meantime just exercise the code path and print-out for inspection.
QList<QPrinterInfo> printers = QPrinterInfo::availablePrinters();
for (int i = 0; i < printers.size(); ++i) {
qDebug() << "Printer : " << printers.at(i).printerName() << printers.at(i).defaultPageSize();
qDebug() << "Paper Sizes : " << printers.at(i).supportedPageSizes();
qDebug() << "Custom Sizes : " << printers.at(i).supportsCustomPageSizes();
qDebug() << "Physical Sizes: " << printers.at(i).minimumPhysicalPageSize()
<< printers.at(i).maximumPhysicalPageSize();
qDebug() << "";
}
}
void tst_QPrinterInfo::testConstructors()
{
QPrinterInfo null;
QCOMPARE(null.printerName(), QString());
QVERIFY(null.isNull());
QPrinterInfo null2(null);
QVERIFY(null2.isNull());
QList<QPrinterInfo> printers = QPrinterInfo::availablePrinters();
for (int i = 0; i < printers.size(); ++i) {
QPrinterInfo copy1(printers.at(i));
QCOMPARE(copy1.printerName(), printers.at(i).printerName());
QCOMPARE(copy1.description(), printers.at(i).description());
QCOMPARE(copy1.location(), printers.at(i).location());
QCOMPARE(copy1.makeAndModel(), printers.at(i).makeAndModel());
QCOMPARE(copy1.isNull(), printers.at(i).isNull());
QCOMPARE(copy1.isDefault(), printers.at(i).isDefault());
QCOMPARE(copy1.isRemote(), printers.at(i).isRemote());
QCOMPARE(copy1.state(), printers.at(i).state());
QCOMPARE(copy1.supportedPageSizes(), printers.at(i).supportedPageSizes());
QCOMPARE(copy1.defaultPageSize(), printers.at(i).defaultPageSize());
QCOMPARE(copy1.supportsCustomPageSizes(), printers.at(i).supportsCustomPageSizes());
QCOMPARE(copy1.minimumPhysicalPageSize(), printers.at(i).minimumPhysicalPageSize());
QCOMPARE(copy1.maximumPhysicalPageSize(), printers.at(i).maximumPhysicalPageSize());
QCOMPARE(copy1.supportedPageSizes(), printers.at(i).supportedPageSizes());
QCOMPARE(copy1.supportedResolutions(), printers.at(i).supportedResolutions());
QCOMPARE(copy1.defaultDuplexMode(), printers.at(i).defaultDuplexMode());
QCOMPARE(copy1.supportedDuplexModes(), printers.at(i).supportedDuplexModes());
QPrinter printer(printers.at(i));
QPrinterInfo copy2(printer);
QCOMPARE(copy2.printerName(), printers.at(i).printerName());
QCOMPARE(copy2.description(), printers.at(i).description());
QCOMPARE(copy2.location(), printers.at(i).location());
QCOMPARE(copy2.makeAndModel(), printers.at(i).makeAndModel());
QCOMPARE(copy2.isNull(), printers.at(i).isNull());
QCOMPARE(copy2.isDefault(), printers.at(i).isDefault());
QCOMPARE(copy2.isRemote(), printers.at(i).isRemote());
QCOMPARE(copy2.state(), printers.at(i).state());
QCOMPARE(copy2.supportedPageSizes(), printers.at(i).supportedPageSizes());
QCOMPARE(copy2.defaultPageSize(), printers.at(i).defaultPageSize());
QCOMPARE(copy2.supportsCustomPageSizes(), printers.at(i).supportsCustomPageSizes());
QCOMPARE(copy2.minimumPhysicalPageSize(), printers.at(i).minimumPhysicalPageSize());
QCOMPARE(copy2.maximumPhysicalPageSize(), printers.at(i).maximumPhysicalPageSize());
QCOMPARE(copy2.supportedPageSizes(), printers.at(i).supportedPageSizes());
QCOMPARE(copy2.supportedResolutions(), printers.at(i).supportedResolutions());
QCOMPARE(copy2.defaultDuplexMode(), printers.at(i).defaultDuplexMode());
QCOMPARE(copy2.supportedDuplexModes(), printers.at(i).supportedDuplexModes());
}
}
void tst_QPrinterInfo::testAssignment()
{
QPrinterInfo null;
QVERIFY(null.isNull());
QPrinterInfo null2;
null2 = null;
QVERIFY(null2.isNull());
QList<QPrinterInfo> printers = QPrinterInfo::availablePrinters();
for (int i = 0; i < printers.size(); ++i) {
QPrinterInfo copy;
copy = printers.at(i);
QCOMPARE(copy.printerName(), printers.at(i).printerName());
QCOMPARE(copy.description(), printers.at(i).description());
QCOMPARE(copy.location(), printers.at(i).location());
QCOMPARE(copy.makeAndModel(), printers.at(i).makeAndModel());
QCOMPARE(copy.isNull(), printers.at(i).isNull());
QCOMPARE(copy.isDefault(), printers.at(i).isDefault());
QCOMPARE(copy.isRemote(), printers.at(i).isRemote());
QCOMPARE(copy.state(), printers.at(i).state());
QCOMPARE(copy.supportedPageSizes(), printers.at(i).supportedPageSizes());
QCOMPARE(copy.defaultPageSize(), printers.at(i).defaultPageSize());
QCOMPARE(copy.supportsCustomPageSizes(), printers.at(i).supportsCustomPageSizes());
QCOMPARE(copy.minimumPhysicalPageSize(), printers.at(i).minimumPhysicalPageSize());
QCOMPARE(copy.maximumPhysicalPageSize(), printers.at(i).maximumPhysicalPageSize());
QCOMPARE(copy.supportedResolutions(), printers.at(i).supportedResolutions());
QCOMPARE(copy.defaultDuplexMode(), printers.at(i).defaultDuplexMode());
QCOMPARE(copy.supportedDuplexModes(), printers.at(i).supportedDuplexModes());
}
}
void tst_QPrinterInfo::namedPrinter()
{
QList<QPrinterInfo> printers = QPrinterInfo::availablePrinters();
QStringList printerNames;
foreach (const QPrinterInfo &pi, printers) {
QPrinterInfo pi2 = QPrinterInfo::printerInfo(pi.printerName());
QCOMPARE(pi2.printerName(), pi.printerName());
QCOMPARE(pi2.description(), pi.description());
QCOMPARE(pi2.location(), pi.location());
QCOMPARE(pi2.makeAndModel(), pi.makeAndModel());
QCOMPARE(pi2.isNull(), pi.isNull());
QCOMPARE(pi2.isDefault(), pi.isDefault());
QCOMPARE(pi2.isRemote(), pi.isRemote());
QCOMPARE(pi2.supportedPageSizes(), pi.supportedPageSizes());
QCOMPARE(pi2.defaultPageSize(), pi.defaultPageSize());
QCOMPARE(pi2.supportsCustomPageSizes(), pi.supportsCustomPageSizes());
QCOMPARE(pi2.minimumPhysicalPageSize(), pi.minimumPhysicalPageSize());
QCOMPARE(pi2.maximumPhysicalPageSize(), pi.maximumPhysicalPageSize());
QCOMPARE(pi2.supportedResolutions(), pi.supportedResolutions());
QCOMPARE(pi2.defaultDuplexMode(), pi.defaultDuplexMode());
QCOMPARE(pi2.supportedDuplexModes(), pi.supportedDuplexModes());
}
}
#endif // QT_NO_PRINTER
QTEST_MAIN(tst_QPrinterInfo)
#include "tst_qprinterinfo.moc"
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