diff --git a/tests/test_cuimage_reader.py b/tests/test_cuimage_reader.py
index c8391939f1..80820648ef 100644
--- a/tests/test_cuimage_reader.py
+++ b/tests/test_cuimage_reader.py
@@ -26,7 +26,8 @@
 PILImage, has_pil = optional_import("PIL.Image")
 
 FILE_URL = "https://drive.google.com/uc?id=1sGTKZlJBIz53pfqTxoTqiIQzIoEzHLAe"
-FILE_PATH = os.path.join(os.path.dirname(__file__), "testing_data", "temp_" + os.path.basename(FILE_URL))
+base_name, extension = FILE_URL.split("id=")[1], ".tiff"
+FILE_PATH = os.path.join(os.path.dirname(__file__), "testing_data", "temp_" + base_name + extension)
 
 HEIGHT = 32914
 WIDTH = 46000
diff --git a/tests/test_masked_inference_wsi_dataset.py b/tests/test_masked_inference_wsi_dataset.py
index f5b2611fd9..576b4c85f4 100644
--- a/tests/test_masked_inference_wsi_dataset.py
+++ b/tests/test_masked_inference_wsi_dataset.py
@@ -26,7 +26,7 @@
 _, has_osl = optional_import("openslide")
 
 FILE_URL = "https://drive.google.com/uc?id=1sGTKZlJBIz53pfqTxoTqiIQzIoEzHLAe"
-base_name, extension = os.path.splitext(os.path.basename(FILE_URL))
+base_name, extension = FILE_URL.split("id=")[1], ".tiff"
 FILE_NAME = "temp_" + base_name
 FILE_PATH = os.path.join(os.path.dirname(__file__), "testing_data", FILE_NAME + extension)
 
diff --git a/tests/test_openslide_reader.py b/tests/test_openslide_reader.py
index cf092158f2..55e49fcb28 100644
--- a/tests/test_openslide_reader.py
+++ b/tests/test_openslide_reader.py
@@ -25,7 +25,8 @@
 
 
 FILE_URL = "https://drive.google.com/uc?id=1sGTKZlJBIz53pfqTxoTqiIQzIoEzHLAe"
-FILE_PATH = os.path.join(os.path.dirname(__file__), "testing_data", "temp_" + os.path.basename(FILE_URL))
+base_name, extension = FILE_URL.split("id=")[1], ".tiff"
+FILE_PATH = os.path.join(os.path.dirname(__file__), "testing_data", "temp_" + base_name + extension)
 
 HEIGHT = 32914
 WIDTH = 46000
diff --git a/tests/test_patch_wsi_dataset.py b/tests/test_patch_wsi_dataset.py
index 9259cd0e7b..ca54332ad5 100644
--- a/tests/test_patch_wsi_dataset.py
+++ b/tests/test_patch_wsi_dataset.py
@@ -26,7 +26,8 @@
 _, has_osl = optional_import("openslide")
 
 FILE_URL = "https://drive.google.com/uc?id=1sGTKZlJBIz53pfqTxoTqiIQzIoEzHLAe"
-FILE_PATH = os.path.join(os.path.dirname(__file__), "testing_data", "temp_" + os.path.basename(FILE_URL))
+base_name, extension = FILE_URL.split("id=")[1], ".tiff"
+FILE_PATH = os.path.join(os.path.dirname(__file__), "testing_data", "temp_" + base_name + extension)
 
 TEST_CASE_0 = [
     {
diff --git a/tests/test_smartcache_patch_wsi_dataset.py b/tests/test_smartcache_patch_wsi_dataset.py
index 317b6cba63..2150ede51c 100644
--- a/tests/test_smartcache_patch_wsi_dataset.py
+++ b/tests/test_smartcache_patch_wsi_dataset.py
@@ -25,7 +25,8 @@
 has_cim = has_cim and hasattr(_cucim, "CuImage")
 
 FILE_URL = "https://drive.google.com/uc?id=1sGTKZlJBIz53pfqTxoTqiIQzIoEzHLAe"
-FILE_PATH = os.path.join(os.path.dirname(__file__), "testing_data", "temp_" + os.path.basename(FILE_URL))
+base_name, extension = FILE_URL.split("id=")[1], ".tiff"
+FILE_PATH = os.path.join(os.path.dirname(__file__), "testing_data", "temp_" + base_name + extension)
 
 TEST_CASE_0 = [
     {