Merge pull request #24186 from dkurt:ts_fixture_constructor_skip

Skip test on SkipTestException at fixture's constructor

* Skip test on SkipTestException at fixture's constructor

* Add warning supression

* Skip Python tests if no test file found

* Skip instances of test fixture with exception at SetUpTestCase

* Skip test with exception at SetUp method

* Try remove warning disable

* Add CV_NORETURN

* Remove FAIL assertion

* Use findDataFile to throw Skip exception

* Throw exception conditionally

modules/python/test/tests_common.py

@@ -36,6 +36,8 @@ class NewOpenCVTests(unittest.TestCase):
                     return candidate
         if required:
             self.fail('File ' + filename + ' not found')
+        else:
+            self.skipTest('File ' + filename + ' not found')
         return None