Add functional test for dropped column

tests/functional/adapter/test_docs.py

@@ -15,6 +15,17 @@
 select 1 as id
 """
 
+iceberg_model_sql = """
+{{
+    config(
+        materialized="table",
+        table_type="iceberg",
+        post_hook="alter table model drop column to_drop"
+    )
+}}
+select 1 as id, 'to_drop' as to_drop
+"""
+
 override_macros_sql = """
 {% macro get_catalog_relations(information_schema, relations) %}
     {{ return(adapter.get_catalog_by_relations(information_schema, relations)) }}
@@ -44,7 +55,6 @@ def custom_verify_catalog_athena(project, expected_catalog, start_time):
                 assert node_key in found_node
                 # the value of found_node[node_key] is not exactly expected_node[node_key]
 
-
 class TestDocsGenerate(BaseDocsGenerate):
     """
     Override of BaseDocsGenerate to make it working with Athena
@@ -88,14 +98,37 @@ def models(self):
     def macros(self):
         return {"override_macros_sql.sql": override_macros_sql}
 
-    def test_generate_docs(
-        self,
-        project,
-    ):
+    def test_generate_docs(self, project):
         results = run_dbt(["run"])
         assert len(results) == 1
 
         docs_generate = run_dbt(["--warn-error", "docs", "generate"])
         assert len(docs_generate._compile_results.results) == 1
         assert docs_generate._compile_results.results[0].status == RunStatus.Success
         assert docs_generate.errors is None
+
+
+class TestDocsGenerateIcebergNonCurrentColumn:
+    @pytest.fixture(scope="class")
+    def models(self):
+        return {"model.sql": iceberg_model_sql}
+
+    @pytest.fixture(scope="class")
+    def macros(self):
+        return {"override_macros_sql.sql": override_macros_sql}
+
+    def test_generate_docs(self, project):
+        results = run_dbt(["run"])
+        assert len(results) == 1
+
+        docs_generate = run_dbt(["--warn-error", "docs", "generate"])
+        assert len(docs_generate._compile_results.results) == 1
+        assert docs_generate._compile_results.results[0].status == RunStatus.Success
+        assert docs_generate.errors is None
+
+        catalog_path = os.path.join(project.project_root, "target", "catalog.json")
+        assert os.path.exists(catalog_path)
+        catalog = get_artifact(catalog_path)
+        columns = catalog["nodes"]["model.test.model"]["columns"]
+        assert "to_drop" not in columns
+        assert "id" in columns