cleanup macro and add test

Author: sdebruyn

dbt/include/sqlserver/macros/adapters/schema.sql

@@ -1,10 +1,10 @@
 {% macro sqlserver__create_schema(relation) -%}
-{% auth = config.get("auth") %}
+{% auth = config.get("schema_authorization") %}
   {% call statement('create_schema') -%}
     USE [{{ relation.database }}];
-    IF NOT EXISTS (SELECT * FROM sys.schemas WHERE name = '{{ relation.without_identifier().schema }}')
+    IF NOT EXISTS (SELECT * FROM sys.schemas WHERE name = '{{ relation.schema }}')
     BEGIN
-    EXEC('CREATE SCHEMA [{{ relation.without_identifier().schema }}] {%- if auth -%} AUTHORIZATION: [{{auth}}]')
+    EXEC('CREATE SCHEMA [{{ relation.schema }}] {% if schema_authorization %} AUTHORIZATION: [{{ schema_authorization }}] {% endif %}')
     END
   {% endcall %}
 {% endmacro %}

tests/functional/adapter/test_schema.py

@@ -0,0 +1,26 @@
+import pytest
+from dbt.tests.util import run_dbt
+
+
+class TestSchemaCreation:
+    @pytest.fixture(scope="class")
+    def project_config_update(self):
+        return {"name": "schema_tests"}
+
+    @pytest.fixture(scope="class")
+    def models(self):
+        return {
+            "dummy.sql": "select 1 as id",
+            "dummy_with_auth.sql": """
+{{ config(schema_authorization=env_var('DBT_TEST_USER_1')) }}
+select 1 as id
+""",
+        }
+
+    def test_schema_creation(self, project):
+        res = run_dbt(["run", "-s", "dummy"])
+        assert len(res) == 1
+
+    def test_schema_creation_with_auth(self, project):
+        res = run_dbt(["run", "-s", "dummy_with_auth"])
+        assert len(res) == 1