diff --git a/tests/basic_test.py b/tests/basic_test.py
index 4858875..dd3ca3d 100644
--- a/tests/basic_test.py
+++ b/tests/basic_test.py
@@ -17,12 +17,12 @@ def test_single_file_tar(tmp_path):
         with tarfile.open(fileobj=writer, mode="w") as tar:
             tar.add(hello_path, arcname=hello_path.name)
 
+    checksum_from_disk = get_file_hash(temp_tar_filename)
+    print(f"to double-check, here is the checksum of .tar re-reading it: {checksum_from_disk}")
+
     checksum = writer.hash_func.hexdigest()
     print(f"digest of the tar file: {checksum}")
-    assert checksum == "08e87bd00a65bebed3cabc34b4cf9a005b3bf31c25078ebd44a30fa1ad0778e3"
-
-    checksum2 = get_file_hash(temp_tar_filename)
-    print(f"to double-check, here is the checksum of .tar.gz re-reading it: {checksum2}")
+    assert checksum == checksum_from_disk
 
     final_tar_filename = f"{checksum}.tar"
     os.rename(temp_tar_filename, sha256_path / final_tar_filename)
@@ -46,15 +46,21 @@ def test_single_file_gz(tmp_path):
             with tarfile.open(fileobj=inner_writer, mode="w") as tar:
                 tar.add(hello_path, arcname=hello_path.name)
 
+    checksum_from_disk = get_file_hash(temp_tar_filename)
+    print(f"to double-check, here is the checksum of .tar.gz re-reading it: {checksum_from_disk}")
+
+    throwaway_tar = tmp_path / "throwaway.tar"
+    with tarfile.open(throwaway_tar, mode="w") as tar:
+        tar.add(hello_path, arcname=hello_path.name)
+    throwaway_checksum_from_disk = get_file_hash(throwaway_tar)
+    print(f"to double-check, here is the checksum of throwaway_tar .tar re-reading it: {throwaway_checksum_from_disk}")
+
     tar_checksum = inner_writer.hash_func.hexdigest()
     print(f"digest of the tar file: {tar_checksum}")
-    assert tar_checksum == "08e87bd00a65bebed3cabc34b4cf9a005b3bf31c25078ebd44a30fa1ad0778e3"
+    assert tar_checksum == throwaway_checksum_from_disk
     checksum = writer.hash_func.hexdigest()
     print(f"digest of the tar.gz file: {checksum}")
-    assert checksum == "42ebad9bfd3ace9ea36c96957b41a0ab3d8f7b0528700a1a154887c459b33587"
-
-    checksum2 = get_file_hash(temp_tar_filename)
-    print(f"to double-check, here is the checksum of .tar.gz re-reading it: {checksum2}")
+    assert checksum == checksum_from_disk
 
     final_tar_filename = f"{checksum}.tar.gz"
     os.rename(temp_tar_filename, sha256_path / final_tar_filename)