diff --git a/superset/db_engine_specs/teradata.py b/superset/db_engine_specs/teradata.py
index eb719560faf20..8e7589980b15b 100644
--- a/superset/db_engine_specs/teradata.py
+++ b/superset/db_engine_specs/teradata.py
@@ -153,7 +153,9 @@ def _get_table(tlist: TokenList) -> Optional[Table]:
         tokens = tlist.tokens[:idx]
 
         odd_token_number = len(tokens) in (1, 3, 5)
-        qualified_name_parts = all(imt(token, t=[Name, String]) for token in tokens[::2])
+        qualified_name_parts = all(
+            imt(token, t=[Name, String]) for token in tokens[::2]
+        )
         dot_separators = all(imt(token, m=(Punctuation, ".")) for token in tokens[1::2])
         if odd_token_number and qualified_name_parts and dot_separators:
             return Table(*[remove_quotes(token.value) for token in tokens[::-2]])
diff --git a/tests/unit_tests/db_engine_specs/test_teradata.py b/tests/unit_tests/db_engine_specs/test_teradata.py
index a2affcc83846c..8d9fc08c4a631 100644
--- a/tests/unit_tests/db_engine_specs/test_teradata.py
+++ b/tests/unit_tests/db_engine_specs/test_teradata.py
@@ -15,20 +15,18 @@
 # specific language governing permissions and limitations
 # under the License.
 # pylint: disable=unused-argument, import-outside-toplevel, protected-access
-from datetime import datetime
 
-import pytest
 from flask.ctx import AppContext
 
 
-def test_ParsedQuery_tds_lower_limit(app_context: AppContext) -> None:
+def test_ParsedQueryTeradata_lower_limit(app_context: AppContext) -> None:
     """
-    Test the custom ``ParsedQuery_td`` that calls  ``_extract_limit_from_query_td(``
+    Test the custom ``ParsedQueryTeradata`` that calls ``_extract_limit_from_query_td(``
 
     The CLass looks for Teradata limit keywords TOP and SAMPLE vs LIMIT in
-    other dialects. and
+    other dialects.
     """
-    from superset.db_engine_specs.teradata import TeradataEngineSpec, ParsedQueryTeradata
+    from superset.db_engine_specs.teradata import TeradataEngineSpec
 
     sql = "SEL TOP 1000 * FROM My_table;"
     limit = 100
@@ -38,8 +36,14 @@ def test_ParsedQuery_tds_lower_limit(app_context: AppContext) -> None:
     )
 
 
-def test_ParsedQuery_tds_higher_limit(app_context: AppContext) -> None:
-    from superset.db_engine_specs.teradata import TeradataEngineSpec, ParsedQueryTeradata
+def test_ParsedQueryTeradata_higher_limit(app_context: AppContext) -> None:
+    """
+    Test the custom ``ParsedQueryTeradata`` that calls ``_extract_limit_from_query_td(``
+
+    The CLass looks for Teradata limit keywords TOP and SAMPLE vs LIMIT in
+    other dialects.
+    """
+    from superset.db_engine_specs.teradata import TeradataEngineSpec
 
     sql = "SEL TOP 1000 * FROM My_table;"
     limit = 10000
@@ -49,14 +53,14 @@ def test_ParsedQuery_tds_higher_limit(app_context: AppContext) -> None:
     )
 
 
-def test_ParsedQuery_tds_equal_limit(app_context: AppContext) -> None:
+def test_ParsedQueryTeradata_equal_limit(app_context: AppContext) -> None:
     """
-    Test the custom ``ParsedQuery_td`` that calls  ``_extract_limit_from_query_td(``
+    Test the custom ``ParsedQueryTeradata`` that calls ``_extract_limit_from_query_td(``
 
     The CLass looks for Teradata limit keywords TOP and SAMPLE vs LIMIT in
-    other dialects. and
+    other dialects.
     """
-    from superset.db_engine_specs.teradata import TeradataEngineSpec, ParsedQueryTeradata
+    from superset.db_engine_specs.teradata import TeradataEngineSpec
 
     sql = "SEL TOP 1000 * FROM My_table;"
     limit = 1000
@@ -66,14 +70,14 @@ def test_ParsedQuery_tds_equal_limit(app_context: AppContext) -> None:
     )
 
 
-def test_ParsedQuery_tds_no_limit(app_context: AppContext) -> None:
+def test_ParsedQueryTeradata_no_limit(app_context: AppContext) -> None:
     """
-    Test the custom ``ParsedQuery_td`` that calls  ``_extract_limit_from_query_td(``
+    Test the custom ``ParsedQueryTeradata`` that calls ``_extract_limit_from_query_td(``
 
     The CLass looks for Teradata limit keywords TOP and SAMPLE vs LIMIT in
-    other dialects. and
+    other dialects.
     """
-    from superset.db_engine_specs.teradata import TeradataEngineSpec, ParsedQueryTeradata
+    from superset.db_engine_specs.teradata import TeradataEngineSpec
 
     sql = "SEL * FROM My_table;"
     limit = 1000