diff --git a/src/sst/core/testingframework/test_engine_globals.py b/src/sst/core/testingframework/test_engine_globals.py
index 38e365df8..f235d77a7 100644
--- a/src/sst/core/testingframework/test_engine_globals.py
+++ b/src/sst/core/testingframework/test_engine_globals.py
@@ -15,11 +15,13 @@
 """
 import os
 
-from typing import TYPE_CHECKING
+from typing import Dict, List, TYPE_CHECKING
 
 if TYPE_CHECKING:
     import configparser
 
+    from test_engine_junit import JUnitTestCase
+
 # Verbose Defines
 VERBOSE_QUIET = 0
 VERBOSE_NORMAL = 1
@@ -27,30 +29,30 @@
 VERBOSE_DEBUG = 3
 
 # Global Var Defines
-TESTRUN_TESTRUNNINGFLAG = None
-TESTRUN_SINGTHREAD_TESTSUITE_NAME = None
-TESTRUN_JUNIT_TESTCASE_DICTLISTS = None
+TESTRUN_TESTRUNNINGFLAG = False
+TESTRUN_SINGTHREAD_TESTSUITE_NAME = ""
+TESTRUN_JUNIT_TESTCASE_DICTLISTS: Dict[str, List["JUnitTestCase"]] = dict()
 
-TESTOUTPUT_TOPDIRPATH = None
-TESTOUTPUT_RUNDIRPATH = None
-TESTOUTPUT_TMPDIRPATH = None
-TESTOUTPUT_XMLDIRPATH = None
+TESTOUTPUT_TOPDIRPATH = ""
+TESTOUTPUT_RUNDIRPATH = ""
+TESTOUTPUT_TMPDIRPATH = ""
+TESTOUTPUT_XMLDIRPATH = ""
 
-TESTENGINE_CONCURRENTMODE = None
-TESTENGINE_THREADLIMIT = None
-TESTENGINE_DEBUGMODE = None
-TESTENGINE_LOGFAILMODE = None
-TESTENGINE_IGNORESKIPS = None
-TESTENGINE_VERBOSITY = None
-TESTENGINE_SSTRUN_NUMRANKS = None
-TESTENGINE_SSTRUN_NUMTHREADS = None
-TESTENGINE_SSTRUN_GLOBALARGS = None
-TESTENGINE_CORE_CONFFILE_PARSER = None
-TESTENGINE_CORE_CONFINCLUDE_DICT = None
-TESTENGINE_ELEM_CONFINCLUDE_DICT = None
+TESTENGINE_CONCURRENTMODE = False
+TESTENGINE_THREADLIMIT = 8
+TESTENGINE_DEBUGMODE = False
+TESTENGINE_LOGFAILMODE = False
+TESTENGINE_IGNORESKIPS = False
+TESTENGINE_VERBOSITY = 1
+TESTENGINE_SSTRUN_NUMRANKS = 1
+TESTENGINE_SSTRUN_NUMTHREADS = 1
+TESTENGINE_SSTRUN_GLOBALARGS = ""
+TESTENGINE_CORE_CONFFILE_PARSER: "configparser.RawConfigParser" = None  # type: ignore [assignment]
+TESTENGINE_CORE_CONFINCLUDE_DICT: Dict[str, str] = dict()
+TESTENGINE_ELEM_CONFINCLUDE_DICT: Dict[str, str] = dict()
 TESTENGINE_ERRORCOUNT = 0
-TESTENGINE_SCENARIOSLIST = None
-TESTENGINE_TESTNOTESLIST = None
+TESTENGINE_SCENARIOSLIST: List[str] = []
+TESTENGINE_TESTNOTESLIST: List[str] = []
 
 # These are some globals to pass data between the top level test engine
 # and the lower level testscripts
@@ -98,8 +100,8 @@ def init_test_engine_globals() -> None:
     TESTENGINE_VERBOSITY = 1
     TESTENGINE_SSTRUN_NUMRANKS = 1
     TESTENGINE_SSTRUN_NUMTHREADS = 1
-    TESTENGINE_SSTRUN_GLOBALARGS = ["xxx"]
-    TESTENGINE_CORE_CONFFILE_PARSER = None
+    TESTENGINE_SSTRUN_GLOBALARGS = "xxx"
+    TESTENGINE_CORE_CONFFILE_PARSER = None  # type: ignore [assignment]
     TESTENGINE_CORE_CONFINCLUDE_DICT = {}
     TESTENGINE_ELEM_CONFINCLUDE_DICT = {}
     TESTENGINE_ERRORCOUNT = 0