perf tests: allow to skip performance tests

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

@@ -243,6 +243,7 @@ typedef struct CV_EXPORTS performance_metrics
         TERM_TIME = 1,
         TERM_INTERRUPT = 2,
         TERM_EXCEPTION = 3,
+        TERM_SKIP_TEST = 4, // there are some limitations and test should be skipped
         TERM_UNKNOWN = -1
     };
 
@@ -279,6 +280,8 @@ public:
     static enum PERF_STRATEGY getPerformanceStrategy();
     static enum PERF_STRATEGY setPerformanceStrategy(enum PERF_STRATEGY strategy);
 
+    class PerfSkipTestException: public cv::Exception {};
+
 protected:
     virtual void PerfTestBody() = 0;
 

modules/ts/src/ts_perf.cpp

@@ -1175,7 +1175,14 @@ void TestBase::reportMetrics(bool toJUnitXML)
 {
     performance_metrics& m = calcMetrics();
 
+    if (m.terminationReason == performance_metrics::TERM_SKIP_TEST)
+    {
         if (toJUnitXML)
+        {
+            RecordProperty("custom_status", "skipped");
+        }
+    }
+    else if (toJUnitXML)
     {
         RecordProperty("bytesIn", (int)m.bytesIn);
         RecordProperty("bytesOut", (int)m.bytesOut);
@@ -1267,21 +1274,30 @@ void TestBase::SetUp()
 
 void TestBase::TearDown()
 {
+    if (metrics.terminationReason == performance_metrics::TERM_SKIP_TEST)
+    {
+        LOGI("\tTest was skipped");
+        GTEST_SUCCEED() << "Test was skipped";
+    }
+    else
+    {
         if (!HasFailure() && !verified)
             ADD_FAILURE() << "The test has no sanity checks. There should be at least one check at the end of performance test.";
 
         validateMetrics();
         if (HasFailure())
-        reportMetrics(false);
-    else
         {
+            reportMetrics(false);
+            return;
+        }
+    }
+
     const ::testing::TestInfo* const test_info = ::testing::UnitTest::GetInstance()->current_test_info();
     const char* type_param = test_info->type_param();
     const char* value_param = test_info->value_param();
     if (value_param) printf("[ VALUE    ] \t%s\n", value_param), fflush(stdout);
     if (type_param)  printf("[ TYPE     ] \t%s\n", type_param), fflush(stdout);
     reportMetrics(true);
-    }
 }
 
 std::string TestBase::getDataPath(const std::string& relativePath)
@@ -1331,6 +1347,11 @@ void TestBase::RunPerfTestBody()
     {
         this->PerfTestBody();
     }
+    catch(PerfSkipTestException&)
+    {
+        metrics.terminationReason = performance_metrics::TERM_SKIP_TEST;
+        return;
+    }
     catch(PerfEarlyExitException&)
     {
         metrics.terminationReason = performance_metrics::TERM_INTERRUPT;