diff --git a/tests/integration/partial/test_advisory.py b/tests/integration/partial/test_advisory.py
index 5ecbd3311b352e1ea8b69a0bbdc1566ec31081fa..5bf0a44abe39ca959e9882ca49468c0541c9ec0f 100644
--- a/tests/integration/partial/test_advisory.py
+++ b/tests/integration/partial/test_advisory.py
@@ -44,7 +44,7 @@ class TestAdvisory(BaseAdvisoryTestSuite.AdvisoryTestSuite):
         prefix: str = "temp_advisory_" + nowstring
         # prefix: str = "temp_advisory"
 
-        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix + os.sep
+        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix
         os.makedirs(IntegrationTestUtils.TEST_OUT_PATH, exist_ok = True)
 
         sys_config_path = IntegrationTestUtils.DEFAULT_SYS_CONFIG_FILE_PATH
@@ -56,7 +56,7 @@ class TestAdvisory(BaseAdvisoryTestSuite.AdvisoryTestSuite):
 
         run_config = IntegrationTestUtils.DEFAULT_ADVISORY_CONFIG_FILE_PATH
         run_config_dict: dict = IntegrationTestUtils.load_json_file(run_config)
-        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix + os.sep
+        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix
 
         # may be reusing a non-timestamped output file during development, so allow extant TEST_OUT_PATH
         os.makedirs(IntegrationTestUtils.TEST_OUT_PATH, exist_ok = True)
diff --git a/tests/integration/partial/test_deposition.py b/tests/integration/partial/test_deposition.py
index 23bc795b196afcee7d1ce53f032823cfee0a25dc..c3e323427d83708f9d6b13877485b4fd31899f6a 100644
--- a/tests/integration/partial/test_deposition.py
+++ b/tests/integration/partial/test_deposition.py
@@ -46,7 +46,7 @@ class TestDeposition(BaseDepoTestSuite.DepoTestSuite):
         # prefix: str = "temp_depo"
 
         # may be reusing a non-timestamped output file during development, so allow extant TEST_OUT_PATH
-        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix + os.sep
+        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix
         os.makedirs(IntegrationTestUtils.TEST_OUT_PATH, exist_ok = True)
 
         sys_config_path = IntegrationTestUtils.DEFAULT_SYS_CONFIG_FILE_PATH
diff --git a/tests/integration/partial/test_env_suit.py b/tests/integration/partial/test_env_suit.py
index 34707763b57023686b72aa70ce0b4a8e4552f98f..5a62707916d2e7cb84b3f98904ca528dad4c81e7 100644
--- a/tests/integration/partial/test_env_suit.py
+++ b/tests/integration/partial/test_env_suit.py
@@ -46,7 +46,7 @@ class TestEnvSuit(BaseEnvSuitTestSuite.EnvSuitTestSuite):
         # prefix: str = "temp_env"
 
         # may be reusing a non-timestamped output file during development, so allow extant TEST_OUT_PATH
-        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix + os.sep
+        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix
         os.makedirs(IntegrationTestUtils.TEST_OUT_PATH, exist_ok = True)
 
         sys_config_path = IntegrationTestUtils.DEFAULT_SYS_CONFIG_FILE_PATH
diff --git a/tests/integration/partial/test_epi.py b/tests/integration/partial/test_epi.py
index afb85d8b371134c84dbfd08d58d3111a8f14fac0..4356253010fae53b93ca6d8fbc63cff27e9b36c4 100644
--- a/tests/integration/partial/test_epi.py
+++ b/tests/integration/partial/test_epi.py
@@ -41,7 +41,7 @@ class TestEpi(BaseEpiTestSuite.EpiTestSuite):
         prefix: str = "temp_epi_" + nowstring
         # prefix: str = "temp_epi"
 
-        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix + os.sep
+        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix
         os.makedirs(IntegrationTestUtils.TEST_OUT_PATH, exist_ok = True)
 
         sys_config_path = IntegrationTestUtils.DEFAULT_SYS_CONFIG_FILE_PATH
diff --git a/tests/integration/partial/test_survey.py b/tests/integration/partial/test_survey.py
index 3946467a7ed7ae4be8222ecccadc17acb818885c..8d2833bc6924e1c96e0e0f461ea9fa2e5d7f00d1 100644
--- a/tests/integration/partial/test_survey.py
+++ b/tests/integration/partial/test_survey.py
@@ -42,7 +42,7 @@ class TestSurvey(BaseSurveyTestSuite.SurveyTestSuite):
         prefix: str = "temp_survey_" + nowstring
         # prefix: str = "temp_survey"
 
-        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix + os.sep
+        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix
         os.makedirs(IntegrationTestUtils.TEST_OUT_PATH, exist_ok = True)
 
         sys_config_path = IntegrationTestUtils.DEFAULT_SYS_CONFIG_FILE_PATH
@@ -55,7 +55,7 @@ class TestSurvey(BaseSurveyTestSuite.SurveyTestSuite):
         run_config = IntegrationTestUtils.DEFAULT_SURVEY_CONFIG_FILE_PATH
         run_config_dict: dict = IntegrationTestUtils.load_json_file(run_config)
         run_dict: dict = copy.deepcopy(run_config_dict)
-        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix + os.sep
+        IntegrationTestUtils.TEST_OUT_PATH = IntegrationTestUtils.TEST_WORKSPACE_PATH + prefix
         run_dict['WORK_PATH'] = IntegrationTestUtils.TEST_OUT_PATH
         run_dict['INPUT_PATH'] = IntegrationTestUtils.TEST_OUT_PATH
         run_dict['OUTPUT_PATH'] = IntegrationTestUtils.TEST_OUT_PATH