tests/auto/corelib/kernel/qtranslator/tst_qtranslator.cpp

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  41
  42 #include <QtTest/QtTest>
  43 #include <QWidget>
  44 #include <qtranslator.h>
  45 #include <qfile.h>
  46
  47 class tst_QTranslator : public QWidget
  48 {
  49     Q_OBJECT
  50
  51 public:
  52     tst_QTranslator();
  53 protected:
  54     bool event(QEvent *event);
  55 private slots:
  56     void initTestCase();
  57
  58     void load();
  59     void load2();
  60     void threadLoad();
  61     void testLanguageChange();
  62     void plural();
  63     void translate_qm_file_generated_with_msgfmt();
  64     void loadFromResource();
  65     void loadDirectory();
  66
  67 private:
  68     int languageChangeEventCounter;
  69 };
  70
  71 tst_QTranslator::tst_QTranslator()
  72     : languageChangeEventCounter(0)
  73 {
  74     show();
  75     hide();
  76 }
  77
  78 void tst_QTranslator::initTestCase()
  79 {
  80     // chdir into the directory containing our testdata,
  81     // to make the code simpler (load testdata via relative paths)
  82     QString testdata_dir = QFileInfo(QFINDTESTDATA("hellotr_la.qm")).absolutePath();
  83     QVERIFY2(QDir::setCurrent(testdata_dir), qPrintable("Could not chdir to " + testdata_dir));
  84 }
  85
  86 bool tst_QTranslator::event(QEvent *event)
  87 {
  88     if (event->type() == QEvent::LanguageChange)
  89         ++languageChangeEventCounter;
  90     return QWidget::event(event);
  91 }
  92
  93 void tst_QTranslator::load()
  94 {
  95
  96     QTranslator tor( 0 );
  97     tor.load("hellotr_la");
  98     QVERIFY(!tor.isEmpty());
  99     QCOMPARE(tor.translate("QPushButton", "Hello world!"), QString::fromLatin1("Hallo Welt!"));
 100 }
 101
 102 void tst_QTranslator::load2()
 103 {
 104     QTranslator tor( 0 );
 105     QFile file("hellotr_la.qm");
 106     file.open(QFile::ReadOnly);
 107     QByteArray data = file.readAll();
 108     tor.load((const uchar *)data.constData(), data.length());
 109     QVERIFY(!tor.isEmpty());
 110     QCOMPARE(tor.translate("QPushButton", "Hello world!"), QString::fromLatin1("Hallo Welt!"));
 111 }
 112
 113 class TranslatorThread : public QThread
 114 {
 115     void run() {
 116         QTranslator tor( 0 );
 117         tor.load("hellotr_la");
 118
 119         if (tor.isEmpty())
 120             qFatal("Could not load translation");
 121         if (tor.translate("QPushButton", "Hello world!") !=  QString::fromLatin1("Hallo Welt!"))
 122             qFatal("Test string was not translated correctlys");
 123     }
 124 };
 125
 126
 127 void tst_QTranslator::threadLoad()
 128 {
 129     TranslatorThread thread;
 130     thread.start();
 131     QVERIFY(thread.wait(10 * 1000));
 132 }
 133
 134 void tst_QTranslator::testLanguageChange()
 135 {
 136     languageChangeEventCounter = 0;
 137
 138     QTranslator *tor = new QTranslator;
 139     tor->load("hellotr_la.qm");
 140     qApp->sendPostedEvents();
 141     qApp->sendPostedEvents();
 142     QCOMPARE(languageChangeEventCounter, 0);
 143
 144     tor->load("doesn't exist, same as clearing");
 145     qApp->sendPostedEvents();
 146     qApp->sendPostedEvents();
 147     QCOMPARE(languageChangeEventCounter, 0);
 148
 149     tor->load("hellotr_la.qm");
 150     qApp->sendPostedEvents();
 151     qApp->sendPostedEvents();
 152     QCOMPARE(languageChangeEventCounter, 0);
 153
 154     qApp->installTranslator(tor);
 155     qApp->sendPostedEvents();
 156     qApp->sendPostedEvents();
 157     QCOMPARE(languageChangeEventCounter, 1);
 158
 159     tor->load("doesn't exist, same as clearing");
 160     qApp->sendPostedEvents();
 161     qApp->sendPostedEvents();
 162     QCOMPARE(languageChangeEventCounter, 2);
 163
 164     tor->load("hellotr_la.qm");
 165     qApp->sendPostedEvents();
 166     qApp->sendPostedEvents();
 167     QCOMPARE(languageChangeEventCounter, 3);
 168
 169     qApp->removeTranslator(tor);
 170     qApp->sendPostedEvents();
 171     qApp->sendPostedEvents();
 172     QCOMPARE(languageChangeEventCounter, 4);
 173
 174     tor->load("doesn't exist, same as clearing");
 175     qApp->sendPostedEvents();
 176     qApp->sendPostedEvents();
 177     QCOMPARE(languageChangeEventCounter, 4);
 178
 179     qApp->installTranslator(tor);
 180     qApp->sendPostedEvents();
 181     qApp->sendPostedEvents();
 182     QCOMPARE(languageChangeEventCounter, 4);
 183
 184     tor->load("hellotr_la.qm");
 185     qApp->sendPostedEvents();
 186     qApp->sendPostedEvents();
 187     QCOMPARE(languageChangeEventCounter, 5);
 188
 189     delete tor;
 190     tor = 0;
 191     qApp->sendPostedEvents();
 192     qApp->sendPostedEvents();
 193     QCOMPARE(languageChangeEventCounter, 6);
 194 }
 195
 196
 197 void tst_QTranslator::plural()
 198 {
 199
 200     QTranslator tor( 0 );
 201     tor.load("hellotr_la");
 202     QVERIFY(!tor.isEmpty());
 203     QCoreApplication::installTranslator(&tor);
 204     QCoreApplication::Encoding e = QCoreApplication::UnicodeUTF8;
 205     QCOMPARE(QCoreApplication::translate("QPushButton", "Hello %n world(s)!", 0, e, 0), QString::fromLatin1("Hallo 0 Welten!"));
 206     QCOMPARE(QCoreApplication::translate("QPushButton", "Hello %n world(s)!", 0, e, 1), QString::fromLatin1("Hallo 1 Welt!"));
 207     QCOMPARE(QCoreApplication::translate("QPushButton", "Hello %n world(s)!", 0, e, 2), QString::fromLatin1("Hallo 2 Welten!"));
 208 }
 209
 210 void tst_QTranslator::translate_qm_file_generated_with_msgfmt()
 211 {
 212     QTranslator translator;
 213     translator.load("msgfmt_from_po");
 214     qApp->installTranslator(&translator);
 215
 216     QCOMPARE(QCoreApplication::translate("", "Intro"), QLatin1String("Einleitung"));
 217     // The file is converted from a po file, thus it does not have any context info.
 218     // The following should then not be translated
 219     QCOMPARE(QCoreApplication::translate("contekst", "Intro"), QLatin1String("Intro"));
 220     QCOMPARE(QCoreApplication::translate("contekst", "Intro\0\0"), QLatin1String("Intro"));
 221     QCOMPARE(QCoreApplication::translate("contekst", "Intro\0x"), QLatin1String("Intro"));
 222     QCOMPARE(QCoreApplication::translate("", "Intro\0\0"), QLatin1String("Einleitung"));
 223     QCOMPARE(QCoreApplication::translate("", "Intro\0x"), QLatin1String("Einleitung"));
 224
 225     qApp->removeTranslator(&translator);
 226 }
 227
 228 void tst_QTranslator::loadFromResource()
 229 {
 230     QTranslator tor;
 231     tor.load(":/tst_qtranslator/hellotr_la.qm");
 232     QVERIFY(!tor.isEmpty());
 233     QCOMPARE(tor.translate("QPushButton", "Hello world!"), QString::fromLatin1("Hallo Welt!"));
 234 }
 235
 236 void tst_QTranslator::loadDirectory()
 237 {
 238     QString current_base = QDir::current().dirName();
 239     QVERIFY(QFileInfo("../" + current_base).isDir());
 240
 241     QTranslator tor;
 242     tor.load(current_base, "..");
 243     QVERIFY(tor.isEmpty());
 244 }
 245
 246 QTEST_MAIN(tst_QTranslator)
 247 #include "tst_qtranslator.moc"