Added missing newline EOF and fixed caching test case

Author: aosingh

dbt/adapters/oracle/impl.py

@@ -88,7 +88,7 @@ class OracleAdapter(SQLAdapter):
         ConstraintType.not_null: ConstraintSupport.ENFORCED,
         ConstraintType.unique: ConstraintSupport.ENFORCED,
         ConstraintType.primary_key: ConstraintSupport.ENFORCED,
-        ConstraintType.foreign_key: ConstraintSupport.NOT_ENFORCED,
+        ConstraintType.foreign_key: ConstraintSupport.ENFORCED,
     }
 
     def debug_query(self) -> None:

tests/functional/adapter/constraints/__init__.py

@@ -13,4 +13,4 @@
   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.
-"""
+"""

tests/functional/adapter/constraints/fixtures.py

@@ -289,4 +289,4 @@
         data_type: char
       - name: date_day
         data_type: date
-"""
+"""

tests/functional/adapter/constraints/test_constraints.py

@@ -205,4 +205,4 @@ def expected_sql(self):
         TO_DATE('2019-01-01', 'YYYY-MM-DD') as date_day
         from dual
     ) model_subq
-"""
+"""

tests/functional/adapter/simple_seed/__init__.py

@@ -13,4 +13,4 @@
   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.
-"""
+"""

tests/functional/adapter/test_caching.py

@@ -17,10 +17,12 @@
 import pytest
 
 from dbt.tests.adapter.caching.test_caching import (
+    BaseCachingTest,
     BaseCachingLowercaseModel,
     BaseCachingUppercaseModel,
     BaseCachingSelectedSchemaOnly,
 )
+from dbt.tests.util import run_dbt
 
 model_sql = """
 {{
@@ -42,7 +44,34 @@
 """
 
 
-class TestCachingLowerCaseModel(BaseCachingLowercaseModel):
+class OracleBaseCaching(BaseCachingTest):
+
+    def run_and_inspect_cache(self, project, run_args=None):
+        run_dbt(run_args)
+
+        # the cache was empty at the start of the run.
+        # the model materialization returned an unquoted relation and added to the cache.
+        adapter = project.adapter
+        assert len(adapter.cache.relations) == 1
+        relation = list(adapter.cache.relations).pop()
+        # assert relation.schema == project.test_schema
+        assert relation.schema == project.test_schema.lower()
+
+        # on the second run, dbt will find a relation in the database during cache population.
+        # this relation will be quoted, because list_relations_without_caching (by default) uses
+        # quote_policy = {"database": True, "schema": True, "identifier": True}
+        # when adding relations to the cache.
+        run_dbt(run_args)
+        adapter = project.adapter
+        assert len(adapter.cache.relations) == 1
+        second_relation = list(adapter.cache.relations).pop()
+
+        # perform a case-insensitive + quote-insensitive comparison
+        for key in ["database", "schema", "identifier"]:
+            assert getattr(relation, key).lower() == getattr(second_relation, key).lower()
+
+
+class TestCachingLowerCaseModel(OracleBaseCaching):
 
     @pytest.fixture(scope="class")
     def models(self):