first pass: unit test typing

dev-requirements.txt

@@ -1,7 +1,7 @@
 # install latest changes in dbt-core
 # TODO: how to automate switching from develop to version branches?
-git+https://github.com/dbt-labs/dbt-core.git#egg=dbt-core&subdirectory=core
-git+https://github.com/dbt-labs/dbt-core.git#egg=dbt-tests-adapter&subdirectory=tests/adapter
+git+https://github.com/dbt-labs/dbt-core.git@support-complex-types-unit-testing#egg=dbt-core&subdirectory=core
+git+https://github.com/dbt-labs/dbt-core.git@support-complex-types-unit-testing#egg=dbt-tests-adapter&subdirectory=tests/adapter
 
 # if version 1.x or greater -> pin to major version
 # if version 0.x -> pin to minor

tests/functional/adapter/unit_testing/test_unit_testing_types.py

@@ -0,0 +1,19 @@
+import pytest
+from dbt.tests.adapter.unit_testing.test_unit_testing_types import BaseUnitTestingTypes
+
+
+class TestBigQueryUnitTestingTypes(BaseUnitTestingTypes):
+    @pytest.fixture
+    def data_types(self):
+        # sql_value, yaml_value
+        return [
+            ["1", "1"],
+            ["'1'", "1"],
+            ["cast('true' as boolean)", "true"],
+            ["cast('2019-01-01' as date)", "2019-01-01"],
+            ["cast('2013-11-03 00:00:00-07' as TIMESTAMP)", "2013-11-03 00:00:00-07"],
+            ["cast(['a','b','c'] as array<string>)", "['a','b','c']"],
+            ["cast([1,2,3] as array<int>)", "[1,2,3]"],
+            ["cast(1 as NUMERIC)", "1"],
+            # ["""JSON '{"name": "Cooper", "forname": "Alice"}'""", """'{"name": "Cooper", "forname": "Alice"}'"""], #TODO
+        ]