Remove required_ from core & added tests to ensure both are working

src/tirith/core/core.py

@@ -274,14 +274,14 @@ def start_policy_evaluation_from_dict(policy_dict: Dict, input_dict: Dict, var_d
     eval_objects = policy_dict.get("evaluators")
 
     final_evaluation_policy_string = policy_dict.get("eval_expression")
-    provider_module = policy_meta.get("required_provider", "core")
-    # TODO: Write functionality for dynamically importing evaluators from other modules.
+
+    provider_module = policy_meta.get("provider", policy_meta.get("required_provider", "core"))
+
     eval_results = []
     eval_results_obj = {}
     for eval_obj in eval_objects:
         eval_id = eval_obj.get("id")
         eval_description = eval_obj.get("description")
-        logger.debug(f"Processing evaluator '{eval_id}'")
         eval_result = generate_evaluator_result(eval_obj, input_dict, provider_module)
         eval_result["id"] = eval_id
         eval_result["description"] = eval_description
@@ -290,10 +290,11 @@ def start_policy_evaluation_from_dict(policy_dict: Dict, input_dict: Dict, var_d
     final_evaluation_result, errors = final_evaluator(final_evaluation_policy_string, eval_results_obj)
 
     final_output = {
-        "meta": {"version": policy_meta.get("version"), "required_provider": provider_module},
+        "meta": {"version": policy_meta.get("version"), "provider": provider_module},
         "final_result": final_evaluation_result,
         "evaluators": eval_results,
         "errors": errors,
         "eval_expression": final_evaluation_policy_string,
     }
     return final_output
+

tests/core/test_core.py

@@ -2,7 +2,7 @@
 from pytest import mark
 
 from tirith.core.core import final_evaluator
-
+from tirith.core.core import start_policy_evaluation_from_dict
 
 @mark.passing
 def test_final_evaluator_skipped_check_should_be_removed():
@@ -38,3 +38,56 @@ def test_final_evaluator_malicious_eval_should_err():
         "!skipped_check && passing_check || [].__class__.__base__", dict(skipped_check=None, passing_check=True)
     )
     assert actual_result == (False, ["The following symbols are not allowed: __class__, __base__"])
+
+
+@mark.passing
+def test_start_policy_evaluation_with_required_provider():
+    policy_dict = {
+        "meta": {"version": "1.0", "required_provider": "legacy_provider"},
+        "evaluators": [],
+        "eval_expression": "True",
+    }
+    input_dict = {}
+
+    result = start_policy_evaluation_from_dict(policy_dict, input_dict)
+
+    assert result["meta"]["provider"] == "legacy_provider"
+
+@mark.passing
+def test_start_policy_evaluation_with_provider():
+    policy_dict = {
+        "meta": {"version": "1.0", "provider": "new_provider"},
+        "evaluators": [],
+        "eval_expression": "True",
+    }
+    input_dict = {}
+
+    result = start_policy_evaluation_from_dict(policy_dict, input_dict)
+
+    assert result["meta"]["provider"] == "new_provider"
+
+@mark.passing
+def test_start_policy_evaluation_with_both_providers():
+    policy_dict = {
+        "meta": {"version": "1.0", "provider": "new_provider", "required_provider": "legacy_provider"},
+        "evaluators": [],
+        "eval_expression": "True",
+    }
+    input_dict = {}
+
+    result = start_policy_evaluation_from_dict(policy_dict, input_dict)
+
+    assert result["meta"]["provider"] == "new_provider"
+
+@mark.passing
+def test_start_policy_evaluation_with_neither_provider():
+    policy_dict = {
+        "meta": {"version": "1.0"},
+        "evaluators": [],
+        "eval_expression": "True",
+    }
+    input_dict = {}
+
+    result = start_policy_evaluation_from_dict(policy_dict, input_dict)
+
+    assert result["meta"]["provider"] == "core"