Tests for current_timestamp (#475)

* Test failure will confirm that it is not a timezone-naive data type

* Temporarily update dev-requirements.text

* Tests for current_timestamp

* Restore original dev-requirements.txt

* Tests that the Python driver for dbt-spark returns a timezone-naive datetime for `{{ dbt.current_timestamp() }}`

Author: dbeatty10

tests/functional/adapter/utils/test_utils.py

@@ -7,6 +7,7 @@
 from dbt.tests.adapter.utils.test_bool_or import BaseBoolOr
 from dbt.tests.adapter.utils.test_cast_bool_to_text import BaseCastBoolToText
 from dbt.tests.adapter.utils.test_concat import BaseConcat
+from dbt.tests.adapter.utils.test_current_timestamp import BaseCurrentTimestampNaive
 from dbt.tests.adapter.utils.test_dateadd import BaseDateAdd
 from dbt.tests.adapter.utils.test_datediff import BaseDateDiff
 from dbt.tests.adapter.utils.test_date_trunc import BaseDateTrunc
@@ -59,6 +60,11 @@ class TestConcat(BaseConcat):
     pass
 
 
+# Use either BaseCurrentTimestampAware or BaseCurrentTimestampNaive but not both
+class TestCurrentTimestamp(BaseCurrentTimestampNaive):
+    pass
+
+
 class TestDateAdd(BaseDateAdd):
     pass