perf tests: added SANITY_CHECK_NOTHING()

modules/ts/include/opencv2/ts/ts_perf.hpp

@@ -209,6 +209,7 @@ private:
 #define SANITY_CHECK(array, ...) ::perf::Regression::add(this, #array, array , ## __VA_ARGS__)
 #define SANITY_CHECK_KEYPOINTS(array, ...) ::perf::Regression::addKeypoints(this, #array, array , ## __VA_ARGS__)
 #define SANITY_CHECK_MATCHES(array, ...) ::perf::Regression::addMatches(this, #array, array , ## __VA_ARGS__)
+#define SANITY_CHECK_NOTHING() this->setVerified();
 
 class CV_EXPORTS GpuPerf
 {
@@ -345,12 +346,13 @@ private:
         friend class TestBase;
     };
     friend class _declareHelper;
-    friend class Regression;
 
     bool verified;
 
 public:
     _declareHelper declare;
+
+    void setVerified() { this->verified = true; }
 };
 
 template<typename T> class TestBaseWithParam: public TestBase, public ::testing::WithParamInterface<T> {};

modules/ts/src/ts_perf.cpp

@@ -107,7 +107,7 @@ Regression& Regression::instance()
 
 Regression& Regression::add(TestBase* test, const std::string& name, cv::InputArray array, double eps, ERROR_TYPE err)
 {
-    if(test) test->verified = true;
+    if(test) test->setVerified();
     return instance()(name, array, eps, err);
 }