write test demonstrating the issue

tests/functional/adapter/catalog_tests/files.py

@@ -0,0 +1,33 @@
+MY_SEED = """
+id,value,record_valid_date
+1,100,2023-01-01 00:00:00
+2,200,2023-01-02 00:00:00
+3,300,2023-01-02 00:00:00
+""".strip()
+
+
+MY_TABLE = """
+{{ config(
+    materialized='table',
+) }}
+select *
+from {{ ref('my_seed') }}
+"""
+
+
+MY_VIEW = """
+{{ config(
+    materialized='view',
+) }}
+select *
+from {{ ref('my_seed') }}
+"""
+
+
+MY_MATERIALIZED_VIEW = """
+{{ config(
+    materialized='materialized_view',
+) }}
+select *
+from {{ ref('my_seed') }}
+"""

tests/functional/adapter/catalog_tests/test_relation_types.py

@@ -0,0 +1,44 @@
+from dbt.contracts.results import CatalogArtifact
+from dbt.tests.util import run_dbt
+import pytest
+
+from tests.functional.adapter.catalog_tests import files
+
+
+class TestCatalogRelationTypes:
+    @pytest.fixture(scope="class", autouse=True)
+    def seeds(self):
+        return {"my_seed.csv": files.MY_SEED}
+
+    @pytest.fixture(scope="class", autouse=True)
+    def models(self):
+        yield {
+            "my_table.sql": files.MY_TABLE,
+            "my_view.sql": files.MY_VIEW,
+            "my_materialized_view.sql": files.MY_MATERIALIZED_VIEW,
+        }
+
+    @pytest.fixture(scope="class", autouse=True)
+    def docs(self, project):
+        run_dbt(["seed"])
+        run_dbt(["run"])
+        yield run_dbt(["docs", "generate"])
+
+    @pytest.mark.parametrize(
+        "node_name,relation_type",
+        [
+            ("seed.test.my_seed", "BASE TABLE"),
+            ("model.test.my_table", "BASE TABLE"),
+            ("model.test.my_view", "VIEW"),
+            ("model.test.my_materialized_view", "MATERIALIZED VIEW"),
+        ],
+    )
+    def test_relation_types_populate_correctly(
+        self, docs: CatalogArtifact, node_name: str, relation_type: str
+    ):
+        """
+        This test addresses: https://github.com/dbt-labs/dbt-redshift/issues/652
+        """
+        assert node_name in docs.nodes
+        node = docs.nodes[node_name]
+        assert node.metadata.type == relation_type