removed .csv suffix from annotation name

tests/items/file/test_fileitem_source.py

@@ -0,0 +1,20 @@
+import tempfile
+import unittest
+
+from cellxgene_gateway.items.file.fileitem_source import FileItemSource
+
+
+class TestFileItemSource(unittest.TestCase):
+    def test_make_fileitem_from_path_GIVEN_annotation_file_THEN_name_lacks_csv(self):
+        source = FileItemSource(tempfile.gettempdir(), "local")
+        item = source.make_fileitem_from_path(
+            "customanno.csv", "someh5ad_annotations", True
+        )
+        self.assertEqual(item.name, "customanno")
+        self.assertEqual(item.descriptor, "someh5ad_annotations/customanno.csv")
+
+    def test_make_fileitem_from_path_GIVEN_h5ad_file_THEN_returns_name(self):
+        source = FileItemSource(tempfile.gettempdir(), "local")
+        item = source.make_fileitem_from_path("someanalysis.h5ad", "studydir")
+        self.assertEqual(item.name, "someanalysis.h5ad")
+        self.assertEqual(item.descriptor, "studydir/someanalysis.h5ad")