tests(schemaview): optimize execution

Avoid opening the same schema 9 times for very similar tests.

Signed-off-by: Silvano Cirujano Cuesta <silvano.cirujano-cuesta@siemens.com>

Author: Silvanoc

tests/test_utils/test_schemaview.py

@@ -62,6 +62,11 @@ def schema_view_attributes() -> SchemaView:
     """Fixture for a SchemaView for testing attribute edge cases."""
     return SchemaView(os.path.join(INPUT_DIR, "attribute_edge_cases.yaml"))
 
+@pytest.fixture(scope="session")
+def schema_view_inlined() -> SchemaView:
+    """Fixture for a SchemaView for testing attribute edge cases."""
+    return SchemaView(os.path.join(INPUT_DIR, "schemaview_is_inlined.yaml"))
+
 
 def test_children_method(schema_view_no_imports: SchemaView) -> None:
     """Test retrieval of the children of a class."""
@@ -930,11 +935,10 @@ def test_mergeimports() -> None:
     ],
 )
 def test_is_inlined(slot_name: str, expected_result: bool) -> None:
+def test_is_inlined(schema_view_inlined: SchemaView, slot_name: str, expected_result: bool) -> None:
     """Tests for slots being inlined or not."""
-    schema_path = os.path.join(INPUT_DIR, "schemaview_is_inlined.yaml")
-    sv = SchemaView(schema_path)
-    slot = sv.get_slot(slot_name)
-    assert sv.is_inlined(slot) == expected_result
+    slot = schema_view_inlined.get_slot(slot_name)
+    assert schema_view_inlined.is_inlined(slot) == expected_result
 
 
 def test_materialize_nonscalar_slot_usage() -> None: