Convert incremental on_schema_change tests.

tests/functional/adapter/incremental/test_incremental_on_schema_change.py

@@ -0,0 +1,87 @@
+import pytest
+
+from dbt.tests.util import run_dbt
+
+from dbt.tests.adapter.incremental.test_incremental_on_schema_change import (
+    BaseIncrementalOnSchemaChange,
+    BaseIncrementalOnSchemaChangeSetup,
+)
+
+
+class BaseIncrementalOnSchemaChangeDatabricksSetup(BaseIncrementalOnSchemaChangeSetup):
+    def run_incremental_sync_all_columns(self, project):
+        select = "model_a incremental_sync_all_columns incremental_sync_all_columns_target"
+        compare_source = "incremental_sync_all_columns"  # noqa: F841
+        compare_target = "incremental_sync_all_columns_target"  # noqa: F841
+        run_dbt(["run", "--models", select, "--full-refresh"])
+        # Delta Lake doesn"t support removing columns -- show a nice compilation error
+        results = run_dbt(["run", "--models", select], expect_pass=False)
+        assert "Compilation Error" in results[1].message
+
+    def run_incremental_sync_remove_only(self, project):
+        select = "model_a incremental_sync_remove_only incremental_sync_remove_only_target"
+        compare_source = "incremental_sync_remove_only"  # noqa: F841
+        compare_target = "incremental_sync_remove_only_target"  # noqa: F841
+        run_dbt(["run", "--models", select, "--full-refresh"])
+        # Delta Lake doesn"t support removing columns -- show a nice compilation error
+        results = run_dbt(["run", "--models", select], expect_pass=False)
+        assert "Compilation Error" in results[1].message
+
+
+class BaseIncrementalOnSchemaChangeDatabricks(
+    BaseIncrementalOnSchemaChange, BaseIncrementalOnSchemaChangeDatabricksSetup
+):
+    def test_run_incremental_append_new_columns(self, project):
+        # only adding new columns in supported
+        self.run_incremental_append_new_columns(project)
+        # handling columns that have been removed doesn"t work on Delta Lake today
+        # self.run_incremental_append_new_columns_remove_one(project)
+
+
+class TestAppendOnSchemaChangeDatabricks(BaseIncrementalOnSchemaChangeDatabricks):
+    @pytest.fixture(scope="class")
+    def project_config_update(self):
+        return {
+            "models": {
+                "+incremental_strategy": "append",
+            }
+        }
+
+
+@pytest.mark.skip_profile(
+    "databricks_uc_cluster", "databricks_sql_endpoint", "databricks_uc_sql_endpoint"
+)
+class TestAppendParquetOnSchemaChangeDatabricks(BaseIncrementalOnSchemaChangeDatabricks):
+    @pytest.fixture(scope="class")
+    def project_config_update(self):
+        return {
+            "models": {
+                "+file_format": "parquet",
+                "+incremental_strategy": "append",
+            }
+        }
+
+
+@pytest.mark.skip_profile(
+    "databricks_uc_cluster", "databricks_sql_endpoint", "databricks_uc_sql_endpoint"
+)
+class TestInsertOverwriteOnSchemaChangeDatabricks(BaseIncrementalOnSchemaChangeDatabricks):
+    @pytest.fixture(scope="class")
+    def project_config_update(self):
+        return {
+            "models": {
+                "+file_format": "parquet",
+                "+partition_by": "id",
+                "+incremental_strategy": "insert_overwrite",
+            }
+        }
+
+
+class TestMergeOnSchemaChangeDatabricks(BaseIncrementalOnSchemaChangeDatabricks):
+    @pytest.fixture(scope="class")
+    def project_config_update(self):
+        return {
+            "models": {
+                "+unique_key": "id",
+            }
+        }