Fix failing unit test

Author: nyalldawson

tests/src/gui/testqgsattributeform.cpp

@@ -78,8 +78,8 @@ void TestQgsAttributeForm::testFieldConstraint()
   form.setFeature( ft );
 
   // testing stuff
-  QString validLabel = QStringLiteral( "col0<font color=\"green\">*</font>" );
-  QString invalidLabel = QStringLiteral( "col0<font color=\"red\">*</font>" );
+  QString validLabel = QStringLiteral( "col0<font color=\"green\">✔</font>" );
+  QString invalidLabel = QStringLiteral( "col0<font color=\"red\">❌</font>" );
 
   // set constraint
   layer->setConstraintExpression( 0, QString() );
@@ -144,8 +144,8 @@ void TestQgsAttributeForm::testFieldMultiConstraints()
 
   // testing stuff
   QSignalSpy spy( &form, SIGNAL( attributeChanged( QString, QVariant ) ) );
-  QString val = QStringLiteral( "<font color=\"green\">*</font>" );
-  QString inv = QStringLiteral( "<font color=\"red\">*</font>" );
+  QString val = QStringLiteral( "<font color=\"green\">✔</font>" );
+  QString inv = QStringLiteral( "<font color=\"red\">❌</font>" );
 
   // get wrappers for each widget
   QgsEditorWidgetWrapper *ww0, *ww1, *ww2, *ww3;