QAbstractItemModelTester: don't call match(QModelIndex(), ...)

The documentation for match() indicates that the index has to be valid
since it determines which column to search in (in addition to "from
which row"). So call match with a valid index, if the model isn't empty.

Change-Id: I5f3754cf14d053bf04d207cefe7dcc938e0f4a5a
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/testlib/qabstractitemmodeltester.cpp b/src/testlib/qabstractitemmodeltester.cpp
index 04fa99bc4d..fc6f696ecd 100644
--- a/src/testlib/qabstractitemmodeltester.cpp
+++ b/src/testlib/qabstractitemmodeltester.cpp
@@ -322,9 +322,10 @@ void QAbstractItemModelTesterPrivate::nonDestructiveBasicTest()
     Qt::ItemFlags flags = model->flags(QModelIndex());
     MODELTESTER_VERIFY(flags == Qt::ItemIsDropEnabled || flags == 0);
     model->hasChildren(QModelIndex());
-    model->hasIndex(0, 0);
+    const bool hasRow = model->hasIndex(0, 0);
     QVariant cache;
-    model->match(QModelIndex(), -1, cache);
+    if (hasRow)
+        model->match(model->index(0, 0), -1, cache);
     model->mimeTypes();
     MODELTESTER_VERIFY(!model->parent(QModelIndex()).isValid());
     MODELTESTER_VERIFY(model->rowCount() >= 0);