Views do not notify count changes properly

The views don't have a valid count until both a model and a delegate
are provided.  But, countChanged() is not called when a delegate is
set after the model, so bindings to count were not evaluated.  Also
test that count is updated for insertion/removal

Change-Id: Ic82039a624c02f0bdb2862ac7a6e215df75bb314
Task-number: QTBUG-19037
Reviewed-by: Bea Lam

2 files changed, 4 insertions, 0 deletions

diff --git a/tests/auto/declarative/qdeclarativelistview/data/listviewtest.qml b/tests/auto/declarative/qdeclarativelistview/data/listviewtest.qml
index 3cd6f42..75ddabb 100644
--- a/tests/auto/declarative/qdeclarativelistview/data/listviewtest.qml
+++ b/tests/auto/declarative/qdeclarativelistview/data/listviewtest.qml
@@ -6,6 +6,7 @@ Rectangle {
     height: 320
     color: "#ffffff"
 
+    property int count: list.count
     property bool showHeader: false
     property bool showFooter: false
     property real hr: list.visibleArea.heightRatio
diff --git a/tests/auto/declarative/qdeclarativelistview/tst_qdeclarativelistview.cpp b/tests/auto/declarative/qdeclarativelistview/tst_qdeclarativelistview.cpp
index 0c96587..8b90030 100644
--- a/tests/auto/declarative/qdeclarativelistview/tst_qdeclarativelistview.cpp
+++ b/tests/auto/declarative/qdeclarativelistview/tst_qdeclarativelistview.cpp
@@ -389,6 +389,7 @@ void tst_QDeclarativeListView::items()
 
     QTRY_VERIFY(listview->highlightItem() != 0);
     QTRY_COMPARE(listview->count(), model.count());
+    QTRY_COMPARE(canvas->rootObject()->property("count").toInt(), model.count());
     QTRY_COMPARE(contentItem->childItems().count(), model.count()+1); // assumes all are visible, +1 for the (default) highlight item
 
     // current item should be first item
@@ -517,6 +518,7 @@ void tst_QDeclarativeListView::inserted()
 
     model.insertItem(0, "Foo", "1111"); // zero index, and current item
 
+    QCOMPARE(canvas->rootObject()->property("count").toInt(), model.count());
     QTRY_COMPARE(contentItem->childItems().count(), model.count()+1); // assumes all are visible, +1 for the (default) highlight item
 
     name = findItem<QDeclarativeText>(contentItem, "textName", 0);
@@ -583,6 +585,7 @@ void tst_QDeclarativeListView::removed(bool animated)
     QTRY_VERIFY(contentItem != 0);
 
     model.removeItem(1);
+    QCOMPARE(canvas->rootObject()->property("count").toInt(), model.count());
 
     QDeclarativeText *name = findItem<QDeclarativeText>(contentItem, "textName", 1);
     QTRY_VERIFY(name != 0);