Add unit test to support bug 449244

The paragraph widget supports emoji without problem. The XML export
seems to need to deal with it in a more robust manner.

CCBUG: 449244

src/tests/fieldwidgettest.cpp

@@ -254,6 +254,10 @@ void FieldWidgetTest::testPara() {
 
   w.clear();
   QVERIFY(w.text().isEmpty());
+
+  QString textWithEmoji = QString::fromUtf8("Title 🏡️");
+  w.setText(textWithEmoji);
+  QCOMPARE(w.text(), textWithEmoji);
 }
 
 void FieldWidgetTest::testNumber() {

src/tests/tellicoreadtest.cpp

@@ -586,3 +586,22 @@ void TellicoReadTest::testBug443845() {
   Tellico::Data::EntryPtr entry = coll->entries().at(0);
   QVERIFY(entry);
 }
+
+void TellicoReadTest::testEmoji() {
+  QString textWithEmoji = QString::fromUtf8("Title 🏡️");
+  Tellico::Data::CollPtr coll(new Tellico::Data::Collection(true)); // add default fields
+  QVERIFY(coll->hasField(QStringLiteral("title")));
+  Tellico::Data::EntryPtr entry1(new Tellico::Data::Entry(coll));
+  entry1->setField(QStringLiteral("title"), textWithEmoji);
+  coll->addEntries(entry1);
+  Tellico::Export::TellicoXMLExporter exporter(coll);
+  exporter.setEntries(coll->entries());
+
+  Tellico::Import::TellicoImporter importer(exporter.text());
+  Tellico::Data::CollPtr coll2 = importer.collection();
+  QVERIFY(coll2);
+  Tellico::Data::EntryPtr entry2 = coll2->entries().at(0);
+  QVERIFY(entry2);
+
+  QCOMPARE(entry2->title(), textWithEmoji);
+}

src/tests/tellicoreadtest.h

@@ -59,6 +59,7 @@ private Q_SLOTS:
   void testRelativeLink();
   void testEmptyFirstTableRow();
   void testBug443845();
+  void testEmoji();
 
 private:
   QList<Tellico::Data::CollPtr> m_collections;