vendor: OpenCV 5.0.0 snapshot at 755e50675d97db9b7d449d8bd6b09888646f6c6e

modules/cvv/test/test_observer_ptr.cpp

@@ -0,0 +1,27 @@
+// This file is part of OpenCV project.
+// It is subject to the license terms in the LICENSE file found in the top-level directory
+// of this distribution and at http://opencv.org/license.html.
+#include "test_precomp.hpp"
+
+#include "../src/util/observer_ptr.hpp"
+
+namespace opencv_test { namespace {
+
+/**
+ * Verifies that assigning `nullptr` and a nonzero value to a `cvv::util::ObserverPtr<Int>` 
+ * (from /src/util/observer_ptr.hpp) work and that `isNull()` and `getPtr()` return the correct result.
+ */
+
+using cvv::util::ObserverPtr;
+
+TEST(ObserverPtrTest, ConstructionAssignment)
+{
+	ObserverPtr<int> ptr = nullptr;
+	EXPECT_TRUE(ptr.isNull());
+	int x = 3;
+	ptr = x;
+	EXPECT_FALSE(ptr.isNull());
+	EXPECT_EQ(&x, ptr.getPtr());
+}
+
+}} // namespace