diff --git a/src/nbiatoolkit/__init__.py b/src/nbiatoolkit/__init__.py
index e193aeb..0662694 100644
--- a/src/nbiatoolkit/__init__.py
+++ b/src/nbiatoolkit/__init__.py
@@ -22,4 +22,5 @@
     "NBIA_ENDPOINTS",
     "version",
     "__version__",
+    "downloadSingleSeries",
 ]
diff --git a/tests/test_downloadSeries.py b/tests/test_downloadSeries.py
index edb65e9..c0693b1 100644
--- a/tests/test_downloadSeries.py
+++ b/tests/test_downloadSeries.py
@@ -1,5 +1,6 @@
 import pytest
-from src.nbiatoolkit import NBIAClient
+from sqlalchemy import over
+from src.nbiatoolkit import NBIAClient, downloadSingleSeries
 from tempfile import TemporaryDirectory
 import os
 
@@ -9,8 +10,13 @@ def nbia_client():
     return NBIAClient()
 
 
-def test_downloadSeries(nbia_client):
-    seriesList = nbia_client.getSeries(Collection="NSCLC-Radiomics")
+@pytest.fixture
+def series_list(nbia_client):
+    return nbia_client.getSeries(Collection="NSCLC-Radiomics")
+
+
+def test_downloadSeries(nbia_client, series_list):
+    seriesList = series_list
     filePattern = (
         "%PatientID/%Modality-%SeriesNumber-%SeriesInstanceUID/%InstanceNumber.dcm"
     )
@@ -32,3 +38,32 @@ def test_downloadSeries(nbia_client):
         assert len(modality_dir) == 1
         assert modality_dir[0].startswith("CT")
         assert os.path.isdir(os.path.join(tempdir, dir[0], modality_dir[0]))
+
+
+def test_downloadSingleSeries(nbia_client, series_list):
+    seriesList = series_list
+    filePattern = (
+        "%PatientID/%Modality-%SeriesNumber-%SeriesInstanceUID/%InstanceNumber.dcm"
+    )
+    # create a temporary directory
+
+    with TemporaryDirectory() as tempdir:
+
+        downloadSingleSeries(
+            SeriesInstanceUID=seriesList[0]["SeriesInstanceUID"],
+            downloadDir=tempdir,
+            filePattern=filePattern,
+            overwrite=True,
+            api_headers=nbia_client.headers,
+            base_url=nbia_client.base_url,
+            log=nbia_client.logger,
+        )
+        dir = os.listdir(tempdir)
+
+        assert len(dir) == 1
+        assert os.path.isdir(os.path.join(tempdir, dir[0]))
+
+        modality_dir = os.listdir(os.path.join(tempdir, dir[0]))
+        assert len(modality_dir) == 1
+        assert modality_dir[0].startswith("CT")
+        assert os.path.isdir(os.path.join(tempdir, dir[0], modality_dir[0]))
diff --git a/tests/test_new_query_functionality.py b/tests/test_new_query_functionality.py
index ad51117..27de8ad 100644
--- a/tests/test_new_query_functionality.py
+++ b/tests/test_new_query_functionality.py
@@ -3,6 +3,7 @@
 from src.nbiatoolkit import NBIAClient
 from src.nbiatoolkit.auth import OAuth2
 from src.nbiatoolkit.utils import *
+from src.nbiatoolkit.logger import setup_logger
 import pandas as pd
 
 
@@ -31,6 +32,13 @@ def test_nbia_properties(nbia_client):
 
     assert nbia_client.logger is not None
 
+    nbia_client.logger = setup_logger(
+        name="NBIAClient", log_level="INFO", console_logging=True, log_file=None
+    )
+
+    assert nbia_client.return_type == "list"
+    nbia_client.return_type = "dataframe"
+
 
 def test_tcga_collection_description(nbia_client: NBIAClient):
     tcga_collection_description_df = nbia_client.getCollectionDescriptions(