Merge remote-tracking branch 'upstream/3.4' into merge-3.4

modules/ts/misc/run_utils.py

@@ -37,6 +37,13 @@ def execute(cmd, silent=False, cwd=".", env=None):
             new_env = os.environ.copy()
             new_env.update(env)
             env = new_env
+
+        if sys.platform == 'darwin':  # https://github.com/opencv/opencv/issues/14351
+            if env is None:
+                env = os.environ.copy()
+            if 'DYLD_LIBRARY_PATH' in env:
+                env['OPENCV_SAVED_DYLD_LIBRARY_PATH'] = env['DYLD_LIBRARY_PATH']
+
         if silent:
             return check_output(cmd, stderr=STDOUT, cwd=cwd, env=env).decode("latin-1")
         else:

modules/ts/src/ts.cpp

@@ -755,6 +755,7 @@ static uint64_t memory_usage_base_opencl = 0;
 
 void testSetUp()
 {
+    fflush(stdout); fflush(stderr);
     cv::ipp::setIppStatus(0);
     cv::theRNG().state = cvtest::param_seed;
     cv::setNumThreads(cvtest::testThreads);