ignore --empty in unit test ref/source calls (#10764)

.changes/unreleased/Fixes-20240923-202024.yaml

@@ -0,0 +1,6 @@
+kind: Fixes
+body: Ignore --empty in unit test ref/source rendering
+time: 2024-09-23T20:20:24.151285+01:00
+custom:
+ Author: michelleark
+ Issue: "10516"

core/dbt/context/providers.py

@@ -634,6 +634,11 @@ def create_relation(self, target_model: ManifestNode) -> RelationProxy:
 
 
 class RuntimeUnitTestRefResolver(RuntimeRefResolver):
+ @property
+ def resolve_limit(self) -> Optional[int]:
+ # Unit tests should never respect --empty flag or provide a limit since they are based on fake data.
+ return None
+
  def resolve(
  self,
  target_name: str,
@@ -676,6 +681,11 @@ def resolve(self, source_name: str, table_name: str):
 
 
 class RuntimeUnitTestSourceResolver(BaseSourceResolver):
+ @property
+ def resolve_limit(self) -> Optional[int]:
+ # Unit tests should never respect --empty flag or provide a limit since they are based on fake data.
+ return None
+
  def resolve(self, source_name: str, table_name: str):
  target_source = self.manifest.resolve_source(
  source_name,

tests/functional/test_empty.py

@@ -27,6 +27,14 @@
 from {{ source('seed_sources', 'raw_source') }}
 """
 
+model_no_ephemeral_ref_sql = """
+select *
+from {{ ref('model_input') }}
+union all
+select *
+from {{ source('seed_sources', 'raw_source') }}
+"""
+
 
 schema_sources_yml = """
 sources:
@@ -36,6 +44,29 @@
  - name: raw_source
 """
 
+unit_tests_yml = """
+unit_tests:
+ - name: test_my_model
+ model: model_no_ephemeral_ref
+ given:
+ - input: ref('model_input')
+ format: csv
+ rows: |
+ id
+ 1
+ - input: source('seed_sources', 'raw_source')
+ format: csv
+ rows: |
+ id
+ 2
+ expect:
+ format: csv
+ rows: |
+ id
+ 1
+ 2
+"""
+
 
 class TestEmptyFlag:
  @pytest.fixture(scope="class")
@@ -50,7 +81,9 @@ def models(self):
  "model_input.sql": model_input_sql,
  "ephemeral_model_input.sql": ephemeral_model_input_sql,
  "model.sql": model_sql,
+ "model_no_ephemeral_ref.sql": model_no_ephemeral_ref_sql,
  "sources.yml": schema_sources_yml,
+ "unit_tests.yml": unit_tests_yml,
  }
 
  def assert_row_count(self, project, relation_name: str, expected_row_count: int):