emptyDataTest     145 modules/features2d/test/test_descriptors_regression.cpp     void emptyDataTest()
emptyDataTest      75 modules/features2d/test/test_detectors_regression.cpp void CV_FeatureDetectorTest::emptyDataTest()
emptyDataTest      81 modules/features2d/test/test_matchers_algorithmic.cpp void CV_DescriptorMatcherTest::emptyDataTest()