adding bad test

tests/functional/metrics/test_metric_helper_functions.py

@@ -0,0 +1,94 @@
+import pytest
+
+from dbt.tests.util import run_dbt, get_manifest
+from dbt.exceptions import ParsingException
+
+from tests.functional.metrics.fixture_metrics import mock_purchase_data_csv
+
+
+metrics__yml = """
+version: 2
+
+metrics:
+
+  - name: number_of_people
+    label: "Number of people"
+    description: Total count of people
+    model: "ref('people')"
+    type: count
+    sql: "*"
+    timestamp: created_at
+    time_grains: [day, week, month]
+    dimensions:
+      - favorite_color
+      - loves_dbt
+    meta:
+        my_meta: 'testing'
+
+  - name: collective_tenure
+    label: "Collective tenure"
+    description: Total number of years of team experience
+    model: "ref('people')"
+    type: sum
+    sql: tenure
+    timestamp: created_at
+    time_grains: [day, week, month]
+    filters:
+      - field: loves_dbt
+        operator: 'is'
+        value: 'true'
+
+  - name: average_tenure
+    label: "Average tenure"
+    description: "The average tenure per person"
+    type: expression
+    sql: "{{metric('collective_tenure')}} / {{metric('number_of_people')}} "
+    timestamp: created_at
+    time_grains: [day, week, month]
+
+  - name: average_tenure_plus_one
+    label: "Average tenure"
+    description: "The average tenure per person"
+    type: expression
+    sql: "{{metric('average_tenure')}} + 1 "
+    timestamp: created_at
+    time_grains: [day, week, month]
+"""
+
+models__people_sql = """
+select 1 as id, 'Drew' as first_name, 'Banin' as last_name, 'yellow' as favorite_color, true as loves_dbt, 5 as tenure, current_timestamp as created_at
+union all
+select 1 as id, 'Jeremy' as first_name, 'Cohen' as last_name, 'indigo' as favorite_color, true as loves_dbt, 4 as tenure, current_timestamp as created_at
+union all
+select 1 as id, 'Callum' as first_name, 'McCann' as last_name, 'emerald' as favorite_color, true as loves_dbt, 0 as tenure, current_timestamp as created_at
+"""
+
+class TestMetricHelperFunctions:
+    @pytest.fixture(scope="class")
+    def models(self):
+        return {
+            "metrics.yml": metrics__yml,
+            "people.sql": models__people_sql,
+        }
+
+    def test_expression_metric(
+        self,
+        project,
+    ):
+
+        # initial parse
+        results = run_dbt(["compile"])
+
+        # make sure all the metrics are in the manifest
+        manifest = get_manifest(project.project_root)
+        testing_metric = manifest.metrics["metric.test.average_tenure_plus_one"]
+        full_metric_dependency = testing_metric.full_metric_dependency()
+
+        expected_full_metric_dependency = [
+            "average_tenure_plus_one",
+            "average_tenure",
+            "collective_tenure",
+            "number_of_people"
+        ]
+
+        assert full_metric_dependency == expected_full_metric_dependency