Turn on jsonschema-based deprecations by default, based on adapter support

.changes/unreleased/Features-20251201-165209.yaml

@@ -0,0 +1,6 @@
+kind: Features
+body: Raise jsonschema-based deprecation warnings by default
+time: 2025-12-01T16:52:09.354436-05:00
+custom:
+    Author: michelleark
+    Issue: 12240

core/dbt/jsonschemas/jsonschemas.py

@@ -1,5 +1,4 @@
 import json
-import os
 import re
 from datetime import date, datetime
 from pathlib import Path
@@ -141,9 +140,6 @@ def _get_allowed_config_fields_from_error_path(
 
 
 def _can_run_validations() -> bool:
-    if not os.environ.get("DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS"):
-        return False
-
     invocation_context = get_invocation_context()
     return invocation_context.adapter_types.issubset(_JSONSCHEMA_SUPPORTED_ADAPTERS)
 

tests/functional/deprecations/test_deprecations.py

@@ -316,7 +316,6 @@ def models(self):
             "models.yml": invalid_deprecation_date_yaml,
         }
 
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     def test_deprecated_invalid_deprecation_date(self, project):
         event_catcher = EventCatcher(GenericJSONSchemaValidationDeprecation)
         note_catcher = EventCatcher(Note)
@@ -362,7 +361,6 @@ def models(self):
         }
 
     @mock.patch("dbt.jsonschemas.jsonschemas._JSONSCHEMA_SUPPORTED_ADAPTERS", {"postgres"})
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     def test_custom_key_in_config_deprecation(self, project):
         event_catcher = EventCatcher(CustomKeyInConfigDeprecation)
         run_dbt(
@@ -384,7 +382,6 @@ def models(self):
         }
 
     @mock.patch("dbt.jsonschemas.jsonschemas._JSONSCHEMA_SUPPORTED_ADAPTERS", {"postgres"})
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     def test_custom_key_in_config_sql_deprecation(self, project):
         event_catcher = EventCatcher(CustomKeyInConfigDeprecation)
         run_dbt(
@@ -415,7 +412,6 @@ def models(self):
         }
 
     @mock.patch("dbt.jsonschemas.jsonschemas._JSONSCHEMA_SUPPORTED_ADAPTERS", {"postgres"})
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     def test_multiple_custom_keys_in_config_deprecation(self, project):
         event_catcher = EventCatcher(CustomKeyInConfigDeprecation)
         run_dbt(
@@ -442,7 +438,6 @@ def models(self):
         }
 
     @mock.patch("dbt.jsonschemas.jsonschemas._JSONSCHEMA_SUPPORTED_ADAPTERS", {"postgres"})
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     def test_custom_key_in_object_deprecation(self, project):
         event_catcher = EventCatcher(CustomKeyInObjectDeprecation)
         run_dbt(["parse", "--no-partial-parse"], callbacks=[event_catcher.catch])
@@ -486,7 +481,6 @@ def test_jsonschema_validation_deprecations_arent_run_without_env_var(
 
 
 class TestHappyPathProjectHasNoDeprecations:
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     @mock.patch("dbt.jsonschemas.jsonschemas._JSONSCHEMA_SUPPORTED_ADAPTERS", {"postgres"})
     def test_happy_path_project_has_no_deprecations(self, happy_path_project):
         event_cathcer = EventCatcher(DeprecationsSummary)
@@ -498,7 +492,6 @@ def test_happy_path_project_has_no_deprecations(self, happy_path_project):
 
 
 class TestBaseProjectHasNoDeprecations:
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     @mock.patch("dbt.jsonschemas.jsonschemas._JSONSCHEMA_SUPPORTED_ADAPTERS", {"postgres"})
     def test_base_project_has_no_deprecations(self, project):
         event_cathcer = EventCatcher(DeprecationsSummary)
@@ -707,7 +700,6 @@ class TestMissingPlusPrefixDeprecation:
     def project_config_update(self):
         return {"seeds": {"path": {"enabled": True}}}
 
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     @mock.patch("dbt.jsonschemas.jsonschemas._JSONSCHEMA_SUPPORTED_ADAPTERS", {"postgres"})
     def test_missing_plus_prefix_deprecation(self, project):
         event_catcher = EventCatcher(MissingPlusPrefixDeprecation)
@@ -721,7 +713,6 @@ class TestMissingPlusPrefixDeprecationSubPath:
     def project_config_update(self):
         return {"seeds": {"path": {"+enabled": True, "sub_path": {"enabled": True}}}}
 
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     @mock.patch("dbt.jsonschemas.jsonschemas._JSONSCHEMA_SUPPORTED_ADAPTERS", {"postgres"})
     def test_missing_plus_prefix_deprecation_sub_path(self, project):
         event_catcher = EventCatcher(MissingPlusPrefixDeprecation)
@@ -735,7 +726,6 @@ class TestMissingPlusPrefixDeprecationCustomConfig:
     def project_config_update(self):
         return {"seeds": {"path": {"custom_config": True, "sub_path": {"+enabled": True}}}}
 
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     @mock.patch("dbt.jsonschemas.jsonschemas._JSONSCHEMA_SUPPORTED_ADAPTERS", {"postgres"})
     def test_missing_plus_prefix_deprecation_sub_path(self, project):
         event_catcher = EventCatcher(MissingPlusPrefixDeprecation)
@@ -749,7 +739,6 @@ class TestCustomConfigInDbtProjectYmlNoDeprecation:
     def project_config_update(self):
         return {"seeds": {"path": {"+custom_config": True}}}
 
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     @mock.patch("dbt.jsonschemas.jsonschemas._JSONSCHEMA_SUPPORTED_ADAPTERS", {"postgres"})
     def test_missing_plus_prefix_deprecation_sub_path(self, project):
         note_catcher = EventCatcher(Note)
@@ -782,10 +771,6 @@ def test_jsonschema_validation_gating(
         dbt_private_run_jsonschema_validations: bool,
         expected_events: int,
     ) -> None:
-        mocker.patch.dict(
-            os.environ,
-            {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": dbt_private_run_jsonschema_validations},
-        )
 
         if postgres_is_valid:
             supported_adapters_with_postgres = {
@@ -911,7 +896,6 @@ def models(self):
             "models.yml": property_moved_to_config_yaml,
         }
 
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     @mock.patch("dbt.jsonschemas.jsonschemas._JSONSCHEMA_SUPPORTED_ADAPTERS", {"postgres"})
     def test_property_moved_to_config_deprecation(self, project):
         event_catcher = EventCatcher(PropertyMovedToConfigDeprecation)

tests/functional/source_overrides/test_simple_source_override.py

@@ -1,4 +1,3 @@
-import os
 from datetime import datetime, timedelta, timezone
 from unittest import mock
 
@@ -99,7 +98,6 @@ def _set_updated_at_to(self, insert_id, delta, project):
         return insert_id + 1
 
     @mock.patch("dbt.jsonschemas.jsonschemas._JSONSCHEMA_SUPPORTED_ADAPTERS", {"postgres"})
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     def test_source_overrides(self, project):
         insert_id = 101
 

tests/functional/test_project.py

@@ -1,4 +1,3 @@
-import os
 from unittest import mock
 
 import yaml
@@ -28,7 +27,6 @@ def test_project(self, project, mocker: MockerFixture) -> None:
 class TestGenericJsonSchemaValidationDeprecation:
     """Ensure that the generic jsonschema validation deprecation can be fired"""
 
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     def test_project(self, project, project_root: str) -> None:
 
         # `name` was already required prior to this deprecation, so this deprecation doesn't

tests/unit/config/test_project.py

@@ -622,7 +622,6 @@ def test_impossible_version_range(self, project_dict: Dict[str, Any]) -> None:
 
 class TestDeprecations:
 
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     def test_jsonschema_validate(self) -> None:
         from dbt.jsonschemas.jsonschemas import jsonschema_validate
 

tests/unit/test_jsonschemas.py

@@ -1,6 +1,3 @@
-import os
-from unittest import mock
-
 from dbt.deprecations import (
     CustomKeyInConfigDeprecation,
     CustomKeyInObjectDeprecation,
@@ -14,7 +11,6 @@
 
 
 class TestValidateModelConfigNoError:
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     def test_validate_model_config_no_error(self):
         safe_set_invocation_context()
         get_invocation_context().uses_adapter("snowflake")
@@ -27,7 +23,6 @@ def test_validate_model_config_no_error(self):
         validate_model_config(config, "test.yml")
         assert len(caught_events) == 0
 
-    @mock.patch.dict(os.environ, {"DBT_ENV_PRIVATE_RUN_JSONSCHEMA_VALIDATIONS": "True"})
     def test_validate_model_config_error(self):
         safe_set_invocation_context()
         get_invocation_context().uses_adapter("snowflake")