diff --git a/bcutils/tests/test_downloader.py b/bcutils/tests/test_downloader.py
index 224642f..528f802 100644
--- a/bcutils/tests/test_downloader.py
+++ b/bcutils/tests/test_downloader.py
@@ -63,6 +63,7 @@ def test_bad_credentials(self, download_dir):
             )
 
     def test_hourly(self, bc_config, download_dir):
+        print(bc_config.keys())
         if len(bc_config) == 0:
             pytest.skip("Skipping test, no Barchart credentials found in env")
         else:
@@ -81,7 +82,7 @@ def test_hourly(self, bc_config, download_dir):
             assert not csv.is_dir()
 
     def test_daily(self, bc_config, download_dir):
-        if len(bc_config) == 0:
+        if not self._have_creds(bc_config):
             pytest.skip("Skipping test, no Barchart credentials found in env")
         else:
             get_barchart_downloads(
@@ -100,7 +101,7 @@ def test_daily(self, bc_config, download_dir):
             assert not csv.is_dir()
 
     def test_insufficient(self, bc_config, download_dir):
-        if len(bc_config) == 0:
+        if not self._have_creds(bc_config):
             pytest.skip("Skipping test, no Barchart credentials found in env")
         else:
             contract_key = "UPU14"
@@ -119,3 +120,12 @@ def test_insufficient(self, bc_config, download_dir):
             )
 
             assert result == HistoricalDataResult.INSUFFICIENT
+
+    @staticmethod
+    def _have_creds(config: dict):
+        return (
+            "barchart_username" in config
+            and config["barchart_username"]
+            and "barchart_password" in config
+            and config["barchart_password"]
+        )
diff --git a/sample/samples.py b/sample/samples.py
index bffe668..a658224 100644
--- a/sample/samples.py
+++ b/sample/samples.py
@@ -15,6 +15,7 @@
     _env,
 )
 from bcutils.migrate import migrate_to_multi_freq
+from bcutils.config import CONTRACT_MAP
 
 logging.basicConfig(level=logging.INFO)
 
@@ -122,14 +123,14 @@ def update_hourly_file():
     )
 
 
-def update_daily_file():
-    # update the daily AUD Mar 2024 price file in the current working directory
-    contract_map = {"AUD": {"code": "A6", "cycle": "HMUZ", "exchange": "CME"}}
+def update_daily_file(contract_key, config=None):
+    if config is None:
+        config = CONTRACT_MAP
     update_barchart_contract_file(
         create_bc_session(config_obj=_env()),
-        _build_inverse_map(contract_map),
+        config,
         os.getcwd(),
-        "A6H24",
+        contract_key,
         Resolution.Day,
     )
 
@@ -153,5 +154,5 @@ def rename_files_with_new_format():
     # save_hourly("CHFJPY", "UPU14")
     # update_downloads()
     # update_hourly_file()
-    # update_daily_file()
+    # update_daily_file("EPM24")
     # rename_files_with_new_format()