diff --git a/tests/src/core/testqgsexpression.cpp b/tests/src/core/testqgsexpression.cpp
index b48afd12bd5..675b3b49dda 100644
--- a/tests/src/core/testqgsexpression.cpp
+++ b/tests/src/core/testqgsexpression.cpp
@@ -295,6 +295,9 @@ class TestQgsExpression: public QObject
       QTest::newRow( "condition else" ) << "case when 1=0 then 'bad' else 678 end" << false << QVariant( 678 );
       QTest::newRow( "condition null" ) << "case when length(123)=0 then 111 end" << false << QVariant();
       QTest::newRow( "condition 2 when" ) << "case when 2>3 then 23 when 3>2 then 32 else 0 end" << false << QVariant( 32 );
+      QTest::newRow( "coalesce null" ) << "coalesce(NULL)" << false << QVariant( );
+      QTest::newRow( "coalesce mid-null" ) << "coalesce(1, NULL, 3)" << false << QVariant( 1 );
+      QTest::newRow( "coalesce exp" ) << "coalesce(NULL, 1+1)" << false << QVariant( 2 );
 
       // Datetime functions
       QTest::newRow( "to date" ) << "todate('2012-06-28')" << false << QVariant( QDate( 2012, 6, 28 ) );