QFrameAllocator add a new isEmpty method

+ Unit tests

Will help making sure everything is properly deleted after submitting the
RenderViews.

Change-Id: I097e02b095ad6ffd02db07a406a33982a794b7eb
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/tests/auto/core/qframeallocator/tst_qframeallocator.cpp b/tests/auto/core/qframeallocator/tst_qframeallocator.cpp
index 821053fd8..38c97ed6d 100644
--- a/tests/auto/core/qframeallocator/tst_qframeallocator.cpp
+++ b/tests/auto/core/qframeallocator/tst_qframeallocator.cpp
@@ -102,6 +102,7 @@ private slots:
     void allocateSubclass();
     void deallocateSubclass();
     void clearQFrameAllocator();
+    void isEmptyQFrameAllocator();
 };
 
 void tst_QFrameAllocator::initQFrameChunk()
@@ -676,6 +677,43 @@ void tst_QFrameAllocator::clearQFrameAllocator()
     }
 }
 
+void tst_QFrameAllocator::isEmptyQFrameAllocator()
+{
+    // GIVEN
+    Qt3D::QFrameAllocator f(128, 32);
+
+
+    // WHEN
+    for (int i = 0; i < 256; ++i)
+        f.allocate<composed>();
+    // THEN
+    QVERIFY(!f.isEmpty());
+
+    // WHEN
+    f.clear();
+    // THEN
+    QVERIFY(f.isEmpty());
+
+    for (int i = 0; i < 256; ++i) {
+
+        // GIVEN
+        QVector<composed *> composeds;
+        for (int j = 0; j < 256; ++j) {
+            composed *c = f.allocate<composed>();
+            c ->t = i * j;
+            composeds << c;
+        }
+        // THEN
+        QVERIFY(!f.isEmpty());
+
+        // WHEN
+        for (int j = 0; j < 256; ++j)
+            f.deallocate(composeds.takeAt(0));
+        // THEN
+        QVERIFY(f.isEmpty());
+    }
+}
+
 QTEST_APPLESS_MAIN(tst_QFrameAllocator)
 
 #include "tst_qframeallocator.moc"