Add examples of using +tag:some_tag that work

Author: tatiana

cosmos/dbt/selector.py

@@ -498,7 +498,6 @@ def select_nodes(
     exclude = exclude or []
     if not select and not exclude:
         return nodes
-
     validate_filters(exclude, select)
     subset_ids = apply_select_filter(nodes, project_dir, select)
     if select:

tests/dbt/test_selector.py

@@ -64,14 +64,6 @@ def test_is_empty_config(selector_config, paths, tags, config, other, expected):
     config={"materialized": "view", "tags": ["has_child", "is_child"]},
 )
 
-parent_sibling_node = DbtNode(
-    unique_id=f"{DbtResourceType.MODEL.value}.{SAMPLE_PROJ_PATH.stem}.parent_sibling",
-    resource_type=DbtResourceType.MODEL,
-    depends_on=[grandparent_node.unique_id, another_grandparent_node.unique_id],
-    file_path=SAMPLE_PROJ_PATH / "gen2/models/parent_sibling.sql",
-    tags=["is_adopted"],
-    config={"materialized": "view", "tags": ["is_adopted"]},
-)
 
 child_node = DbtNode(
     unique_id=f"{DbtResourceType.MODEL.value}.{SAMPLE_PROJ_PATH.stem}.child",
@@ -208,11 +200,45 @@ def test_select_nodes_by_select_intersection_config_graph_selector_none():
     assert selected == expected
 
 
+def test_select_nodes_by_intersection_and_tag_ancestry():
+    parent_sibling_node = DbtNode(
+        unique_id=f"{DbtResourceType.MODEL.value}.{SAMPLE_PROJ_PATH.stem}.parent_sibling",
+        resource_type=DbtResourceType.MODEL,
+        depends_on=[grandparent_node.unique_id, another_grandparent_node.unique_id],
+        file_path=SAMPLE_PROJ_PATH / "gen2/models/parent_sibling.sql",
+        tags=["is_adopted"],
+        config={"materialized": "view", "tags": ["is_adopted"]},
+    )
+    sample_nodes_with_parent_sibling = dict(sample_nodes)
+    sample_nodes_with_parent_sibling[parent_sibling_node.unique_id] = parent_sibling_node
+    selected = select_nodes(
+        project_dir=SAMPLE_PROJ_PATH, nodes=sample_nodes_with_parent_sibling, select=["+tag:is_child,+tag:is_adopted"]
+    )
+    expected = {
+        grandparent_node.unique_id: grandparent_node,
+        another_grandparent_node.unique_id: another_grandparent_node,
+    }
+    assert selected == expected
+
+
 def test_select_nodes_by_tag_ancestry():
-    selected = select_nodes(project_dir=SAMPLE_PROJ_PATH, nodes=sample_nodes, select=["+tag:is_child,+tag:is_adopted"])
+    parent_sibling_node = DbtNode(
+        unique_id=f"{DbtResourceType.MODEL.value}.{SAMPLE_PROJ_PATH.stem}.parent_sibling",
+        resource_type=DbtResourceType.MODEL,
+        depends_on=[grandparent_node.unique_id, another_grandparent_node.unique_id],
+        file_path=SAMPLE_PROJ_PATH / "gen2/models/parent_sibling.sql",
+        tags=["is_adopted"],
+        config={"materialized": "view", "tags": ["is_adopted"]},
+    )
+    sample_nodes_with_parent_sibling = dict(sample_nodes)
+    sample_nodes_with_parent_sibling[parent_sibling_node.unique_id] = parent_sibling_node
+    selected = select_nodes(
+        project_dir=SAMPLE_PROJ_PATH, nodes=sample_nodes_with_parent_sibling, select=["+tag:is_adopted"]
+    )
     expected = {
         grandparent_node.unique_id: grandparent_node,
         another_grandparent_node.unique_id: another_grandparent_node,
+        parent_sibling_node.unique_id: parent_sibling_node,
     }
     assert selected == expected