diff --git a/src/python/devtest/os/CmdTestOs.py b/src/python/devtest/os/CmdTestOs.py
index 7fc2e51..00baa0c 100644
--- a/src/python/devtest/os/CmdTestOs.py
+++ b/src/python/devtest/os/CmdTestOs.py
@@ -13,6 +13,40 @@ from .TestPhases import TestPhases
 from .TestCases import TestCases
 from .TestResults import TestResults
 
+def get_test_cases(env, pattern): # export
+    slog(INFO, "looking for test cases matching pattern list: {}".format(pattern))
+    return TestCases(env.args.test_case_path, include=pattern)
+
+async def run_test_case(phase, env, machine, case): # export
+    connections = [ c.instance for c in env.connections if c.instance ]
+    delim = '--- running test case "{}"'.format(case)
+    prio = NOTICE
+    prefix = ' {}|{}'.format(*console_color_chars(prio))
+    slog(prio, ',' + delim)
+    jwutils.log.append_to_prefix(prefix)
+    try:
+        if not machine.clear_for_tests():
+            raise Exception("machine is not clear for running tests")
+        rr = await case.run(env, machine, phase)
+        if rr:
+            slog(ERR, "FAIL: ", rr)
+    except Exception:
+        rr = sys.exc_info()[1]
+        slog(ERR, "FAIL: ", rr)
+        slog_m(ERR, traceback.format_exc())
+    jwutils.log.remove_from_prefix(len(prefix))
+    slog(prio, '`' + delim)
+    return rr
+
+async def run_test_cases(phase, env, machine, cases): # export
+    ret = TestResults()
+    for case in cases:
+        if not phase in case.phases:
+            continue
+        rr = await run_test_case(phase, env, machine, case)
+        ret.add(case, phase, rr)
+    return ret
+
 class CmdTestOs(MachineCmd): # export
 
     def __init__(self):
@@ -49,30 +83,6 @@ class CmdTestOs(MachineCmd): # export
             slog(INFO, 'Phase "{}": opening connection "{}" with phases [{}]'.format(phase.name, conn.info, conn.info.phases_str))
             conn.instance = machine.register_connection(env, conn.info)
 
-    async def __run_test_cases(self, phase, env, machine, cases):
-        connections = [ c.instance for c in env.connections if c.instance ]
-        for case in cases:
-            if not phase in case.phases:
-                continue
-            delim = '--- running test case "{}"'.format(case)
-            prio = NOTICE
-            prefix = ' {}|{}'.format(*console_color_chars(prio))
-            slog(prio, ',' + delim)
-            jwutils.log.append_to_prefix(prefix)
-            try:
-                if not machine.clear_for_tests():
-                    raise Exception("machine is not clear for running tests")
-                rr = await case.run(env, machine, phase)
-                if rr:
-                    slog(ERR, "FAIL: ", rr)
-            except Exception:
-                rr = sys.exc_info()[1]
-                slog(ERR, "FAIL: ", rr)
-                slog_m(ERR, traceback.format_exc())
-            self.__results.add(case, phase, rr)
-            jwutils.log.remove_from_prefix(len(prefix))
-            slog(prio, '`' + delim)
-
     @classmethod
     def __get_trigger(cls, phase):
         return getattr(cls, '_{}__trigger_{}'.format(cls.__name__, phase.name.lower()), None)
@@ -97,7 +107,8 @@ class CmdTestOs(MachineCmd): # export
                     if trigger_method is not None:
                         await trigger_method(phase, env, machine)
                     await self.__establish_connections(phase, env, machine)
-                    await self.__run_test_cases(phase, env, machine, test_cases)
+                    results = await run_test_cases(phase, env, machine, test_cases)
+                    self.__results.addResults(results)
                 finally:
                     jwutils.log.remove_from_prefix(len(prefix))
                     slog(prio, '`' + delim + '<')