diff -r dee5afe5301f -r 3f74d0d4af4c tests/auto/qtransform/tst_qtransform.cpp
--- a/tests/auto/qtransform/tst_qtransform.cpp	Mon Mar 15 12:43:09 2010 +0200
+++ b/tests/auto/qtransform/tst_qtransform.cpp	Thu Apr 08 14:19:33 2010 +0300
@@ -610,6 +610,11 @@
     m4.rotate(45);
 
     QCOMPARE(m4.type(), QTransform::TxRotate);
+
+    QTransform m5;
+    m5.scale(5, 5);
+    m5 = m5.adjoint() / m5.determinant();
+    QCOMPARE(m5.type(), QTransform::TxScale);
 }