add functional test

tests/functional/test_singular_tests.py

@@ -0,0 +1,34 @@
+import pytest
+
+from dbt.tests.util import run_dbt
+
+single_test_sql = """
+{{ config(warn_if = '>0', error_if ="> 10") }}
+
+select 1 as issue
+"""
+
+
+class TestSingularTestWarnError:
+    @pytest.fixture(scope="class")
+    def tests(self):
+        return {"single_test.sql": single_test_sql}
+
+    def test_singular_test_warn_error(self, project):
+        results = run_dbt(["--warn-error", "test"], expect_pass=False)
+        assert results.results[0].status == "fail"
+
+    def test_singular_test_warn_error_options(self, project):
+        results = run_dbt(
+            ["--warn-error-options", "{'include': 'all'}", "test"], expect_pass=False
+        )
+        assert results.results[0].status == "fail"
+
+    def test_singular_test_equals_warn_error(self, project):
+        results = run_dbt(["--warn-error", "test"], expect_pass=False)
+        warn_error_result = results.results[0].status
+
+        results = run_dbt(
+            ["--warn-error-options", "{'include': 'all'}", "test"], expect_pass=False
+        )
+        assert warn_error_result == results.results[0].status