fix: clear status.message after adding to history in TaskManager.updateWithMessage #424

[flex-myeonghyeon]

Description

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Fixes #424 🦕

[gemini-code-assist]

Summary of Changes

Hello @flex-myeonghyeon, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request resolves an issue where a task's status message was not being properly cleared after being moved into the task's history. The change ensures that the status.message field is explicitly set to null once its content is recorded in the history, thereby maintaining data consistency and preventing stale or duplicated information in the task's current state. A new test case has been introduced to verify this corrected behavior.

Highlights

• Bug Fix: Clear status.message: The updateWithMessage method in TaskManager now correctly clears the status.message field after its content has been added to the task's history. This prevents the message from being redundantly stored in the current status after it has been processed and moved to the historical record.
• New Test Case: A new comprehensive test, testUpdateWithMessage, has been added to TaskManagerTest to validate the behavior of clearing the status.message and ensuring that all messages are correctly appended to the task's history.

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[gemini-code-assist]

Code Review

This pull request fixes a bug in TaskManager.updateWithMessage where the message from the task's status was not being cleared after being moved to the history. The change correctly creates a new TaskStatus with a null message and updates the task. A new test case is also added to verify this behavior.

My review includes a couple of suggestions for improvement:

• In TaskManager.java, I've pointed out a redundant null check that can be simplified.
• In TaskManagerTest.java, I've suggested a way to simplify the new test case to make it more readable and less confusing.

Overall, the fix is correct and the changes look good.

[gemini-code-assist]

The null check for task.getHistory() is redundant. The Task constructor ensures that getHistory() will always return a non-null List (it defaults to an empty immutable list if history is null during construction). You can simplify this line.

Suggested change

	List<Message> history = task.getHistory() == null ? new ArrayList<>() : new ArrayList<>(task.getHistory());
	List<Message> history = new ArrayList<>(task.getHistory());

[gemini-code-assist]

The test logic can be simplified here. Creating a new TaskManager instance is unnecessary and makes the test harder to follow. The initialMessage passed to the new TaskManager is also misleading as it's not used. You can reuse the existing taskManagerWithInitialMessage and the saved task object to call updateWithMessage.

Suggested change

	TaskManager taskManagerWithUpdateMessage = new TaskManager(saved.getId(), saved.getContextId(), taskStore, updateMessage);
	Task retrieved = taskManagerWithUpdateMessage.getTask();
	Task updated = taskManagerWithUpdateMessage.updateWithMessage(updateMessage, retrieved);
	Task updated = taskManagerWithInitialMessage.updateWithMessage(updateMessage, saved);

[ehsavoie]

Please apply the small changes from gemini, otherwise looks good to me

[flex-myeonghyeon]

@ehsavoie
I’ve updated the comment.
Thank you.