🧪TDD Challenge·beginner·⏱️ 15–30m·⭐ 100 XP
M-053Build a Conversation Memory Store
Description
Nebula Corp's chatbot has amnesia — it forgets everything after each message. Build a simple conversation memory that stores messages, retrieves recent history, and can summarize the conversation. The memory should support adding messages, getting the last N messages, and searching for messages containing a keyword.
Test Cases (3)
Stores and retrieves messages
Should store messages and retrieve the most recent one
Input:testStoreAndRetrieve()
Expected:CONTAINS:Hi there!
Searches by keyword
Should find messages containing the keyword
Input:testSearch()
Expected:CONTAINS:pricing
Returns conversation stats
Should return total count and breakdown by role
Input:testStats()
Expected:CONTAINS:total
Related Lessons
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