Add tests for FlagDetails as well as make target for running specific test

Author: jamescarr

Makefile

@@ -12,7 +12,11 @@ init: .venv
 
 .PHONY: test
 test: .venv
+ifdef TEST
+	$(VENV); pytest $(TEST)
+else
 	$(VENV); pytest
+endif
 
 .PHONY: lint
 lint: .venv

tests/test_open_feature_flag_evaluation.py

@@ -0,0 +1,33 @@
+import pytest
+from open_feature.flag_evaluation.flag_evaluation_details import FlagEvaluationDetails
+from open_feature.exception.error_code import ErrorCode
+from open_feature.flag_evaluation.reason import Reason
+
+
+def test_evaulation_details_reason_should_be_a_string():
+    # Given
+    flag_key = "my-flag"
+    flag_value = 100
+    variant = "1-hundred";
+    reason = Reason.DEFAULT;
+    error_code = ErrorCode.GENERAL;
+    error_message = "message";
+     
+
+    # When
+    flag_details = FlagEvaluationDetails(
+        flag_key,
+        flag_value,
+        variant,
+        reason,
+        error_code,
+        error_message,
+        )
+    
+    # Then
+    assert flag_key == flag_details.flag_key
+    assert flag_value == flag_details.value
+    assert variant == flag_details.variant
+    assert error_code == flag_details.error_code
+    assert error_message == flag_details.error_message
+    assert reason.value == flag_details.reason