tests: move identifier test to single tif format (did not work probab…

…ly due to zipfile hash)

qpformat/file_formats/dataset.py

@@ -124,11 +124,11 @@ def _identifier_meta(self):
     def identifier(self):
         """Return a unique identifier for the given data set"""
         if self.background_identifier is None:
-            return self._identifier_data()
+            idsum = self._identifier_data()
         else:
             idsum = hash_obj([self._identifier_data(),
                               self.background_identifier])
-            return idsum[:5]
+        return idsum
 
     def get_identifier(self, idx):
         """Return an identifier for the data at index `idx`"""

tests/test_series_zip_tif_holo.py

@@ -34,16 +34,6 @@ def test_basic():
         pass
 
 
-def test_identifier():
-    path = setup_test_zip(1)
-    ds = qpformat.load_data(path, holo_kw={"sideband": 1})
-    assert ds.identifier == "641ca"
-    try:
-        path.unlink()
-    except OSError:
-        pass
-
-
 def test_load_data():
     num = 5
     path = setup_test_zip(num)