Add a direct method for failing a test instantly

Author: mdmintz

help_docs/method_summary.md

@@ -546,6 +546,8 @@ self.set_default_timeout(timeout)
 
 self.reset_default_timeout()
 
+self.fail(msg=None)
+
 self.skip(reason="")
 
 ############

seleniumbase/fixtures/base_case.py

@@ -7656,6 +7656,12 @@ def reset_default_timeout(self):
                 sb_config._is_timeout_changed = False
                 self.__overrided_default_timeouts = False
 
+    def fail(self, msg=None):
+        """Fail immediately, with the given message."""
+        unittest.has_exception = True
+        super().fail(msg)
+        raise self.failureException(msg)
+
     def skip(self, reason=""):
         """Mark the test as Skipped."""
         self.__check_scope()