Add unit testing

misc/dbt-materialize/dbt/include/materialize/macros/materializations/unit.sql

@@ -0,0 +1,51 @@
+-- Copyright Materialize, Inc. and contributors. All rights reserved.
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License in the LICENSE file at the
+-- root of this repository, or online at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+
+{%- materialization unit, adapter='materialize' -%}
+
+  {% set relations = [] %}
+
+  {% set expected_rows = config.get('expected_rows') %}
+  {% set expected_sql = config.get('expected_sql') %}
+  {% set tested_expected_column_names = expected_rows[0].keys() if (expected_rows | length) > 0 else get_columns_in_query(sql) %}
+
+  {%- set target_relation = this.incorporate(type='view') -%}
+  {%- set temp_relation = make_temp_relation(target_relation) -%}
+
+  {%- call statement(auto_begin=True) -%}
+    {{ materialize__create_view_as(temp_relation, get_empty_subquery_sql(sql)) }}
+  {%- endcall -%}
+
+  {%- set columns_in_relation = adapter.get_columns_in_relation(temp_relation) -%}
+  {%- set column_name_to_data_types = {} -%}
+  {%- for column in columns_in_relation -%}
+    {%- do column_name_to_data_types.update({column.name|lower: column.data_type}) -%}
+  {%- endfor -%}
+
+  {% if not expected_sql %}
+    {% set expected_sql = get_expected_sql(expected_rows, column_name_to_data_types) %}
+  {% endif %}
+
+  {% set unit_test_sql = get_unit_test_sql(sql, expected_sql, tested_expected_column_names) %}
+
+  {% call statement('main', fetch_result=True) -%}
+    {{ unit_test_sql }}
+  {%- endcall %}
+
+  {% do adapter.drop_relation(temp_relation) %}
+
+  {{ return({'relations': relations}) }}
+
+{%- endmaterialization -%}

misc/dbt-materialize/dbt/include/materialize/macros/tests/helpers.sql

@@ -22,3 +22,13 @@
 
   {{ adapter.dispatch('get_test_sql', 'dbt')(main_sql, fail_calc, warn_if, error_if, limit) }}
 {%- endmacro %}
+
+{% macro get_unit_test_sql(main_sql, expected_fixture_sql, expected_column_names, cluster) -%}
+    {% if cluster %}
+        {% call statement(auto_begin=True) %}
+            set cluster = {{ cluster }}
+        {% endcall %}
+    {% endif %}
+
+  {{ adapter.dispatch('get_unit_test_sql', 'dbt')(main_sql, expected_fixture_sql, expected_column_names) }}
+{%- endmacro %}

misc/dbt-materialize/tests/adapter/test_empty.py

@@ -0,0 +1,20 @@
+# Copyright Materialize, Inc. and contributors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License in the LICENSE file at the
+# root of this repository, or online at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from dbt.tests.adapter.empty.test_empty import BaseTestEmpty
+
+
+class TestRedshiftEmpty(BaseTestEmpty):
+    pass

misc/dbt-materialize/tests/adapter/test_unit_testing.py

@@ -0,0 +1,32 @@
+# Copyright Materialize, Inc. and contributors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License in the LICENSE file at the
+# root of this repository, or online at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from dbt.tests.adapter.unit_testing.test_case_insensitivity import (
+    BaseUnitTestCaseInsensivity,
+)
+from dbt.tests.adapter.unit_testing.test_invalid_input import BaseUnitTestInvalidInput
+from dbt.tests.adapter.unit_testing.test_types import BaseUnitTestingTypes
+
+
+class TestMaterializeUnitTestingTypes(BaseUnitTestingTypes):
+    pass
+
+
+class TestMaterializeUnitTestCaseInsensitivity(BaseUnitTestCaseInsensivity):
+    pass
+
+
+class TestMaterializeUnitTestInvalidInput(BaseUnitTestInvalidInput):
+    pass