fix: repurpose test to cover parent loggers case

Author: heitorlessa

tests/functional/test_logger_utils.py

@@ -195,32 +195,25 @@ def test_copy_config_to_ext_loggers_should_not_break_append_keys(stdout, log_lev
     powertools_logger.append_keys(key="value")
 
 
-def test_copy_config_to_ext_loggers_child_loggers_append_after_works(stdout):
-    # GIVEN powertools logger AND  child initialized AND
-
-    # GIVEN Loggers are initialized
-    # create child logger before parent to mimick
-    # importing logger from another module/file
-    # as loggers are created in global scope
+def test_copy_config_to_parent_loggers_only(stdout):
+    # GIVEN Powertools Logger and Child Logger are initialized
+    # and Powertools Logger config is copied over
     service = service_name()
     child = Logger(stream=stdout, service=service, child=True)
     parent = Logger(stream=stdout, service=service)
-
-    # WHEN a child Logger adds an additional key AND parent logger adds additional key
-    # AND configuration copied from powertools logger
-    # AND powertools logger and child logger used
     utils.copy_config_to_registered_loggers(source_logger=parent)
-    child.structure_logs(append=True, customer_id="value")
-    parent.structure_logs(append=True, user_id="value")
-    parent.warning("Logger message")
-    child.warning("Child logger message")
 
-    # THEN payment_id key added to both powertools logger and child logger
+    # WHEN either parent or child logger append keys
+    child.append_keys(customer_id="value")
+    parent.append_keys(user_id="value")
+    parent.info("Logger message")
+    child.info("Child logger message")
+
+    # THEN both custom keys should be propagated bi-directionally in parent and child loggers
+    # as child logger won't be touched when config is being copied
     parent_log, child_log = capture_multiple_logging_statements_output(stdout)
-    assert "customer_id" in parent_log
-    assert "customer_id" in child_log
-    assert "user_id" in parent_log
-    assert "user_id" in child_log
+    assert "customer_id" in parent_log, child_log
+    assert "user_id" in parent_log, child_log
     assert child.parent.name == service