From 6cdf3d84c8968d08af41796597d4658428826dc2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=8E=8B=E7=A5=A5=E5=AE=87?= <625024108@qq.com>
Date: Thu, 31 Jul 2025 10:07:18 +0800
Subject: [PATCH] update

---
 examples/utils/misc/conversation_test.py | 103 +++++++++++++++++++----
 1 file changed, 86 insertions(+), 17 deletions(-)

diff --git a/examples/utils/misc/conversation_test.py b/examples/utils/misc/conversation_test.py
index ec8a0534..ae34692b 100644
--- a/examples/utils/misc/conversation_test.py
+++ b/examples/utils/misc/conversation_test.py
@@ -1,22 +1,91 @@
 from swarms.structs.conversation import Conversation
+from dotenv import load_dotenv
 
-# Create a conversation object
-conversation = Conversation(backend="in-memory")
 
-# Add a message to the conversation
-conversation.add(
-    role="user", content="Hello, how are you?", category="input"
-)
+# Load environment variables from .env file
+load_dotenv()
 
-# Add a message to the conversation
-conversation.add(
-    role="assistant",
-    content="I'm good, thank you!",
-    category="output",
-)
-
-print(
-    conversation.export_and_count_categories(
-        tokenizer_model_name="claude-3-5-sonnet-20240620"
+def demonstrate_truncation():
+    # Using a smaller context length to clearly see the truncation effect
+    context_length = 25
+    print(f"Creating a conversation instance with context length {context_length}")
+    
+    # Using Claude model as the tokenizer model
+    conversation = Conversation(
+        context_length=context_length,
+        tokenizer_model_name="claude-3-7-sonnet-20250219"
     )
-)
+    
+    # Adding first message - short message
+    short_message = "Hello, I am a user."
+    print(f"\nAdding short message: '{short_message}'")
+    conversation.add("user", short_message)
+    
+    # Display token count
+    from swarms.utils.litellm_tokenizer import count_tokens
+    tokens = count_tokens(short_message, conversation.tokenizer_model_name)
+    print(f"Short message token count: {tokens}")
+    
+    # Adding second message - long message, should be truncated
+    long_message = "I have a question about artificial intelligence. I want to understand how large language models handle long texts, especially under token constraints. This issue is important because it relates to the model's practicality and effectiveness. I hope to get a detailed answer that helps me understand this complex technical problem."
+    print(f"\nAdding long message:\n'{long_message}'")
+    conversation.add("assistant", long_message)
+    
+    # Display long message token count
+    tokens = count_tokens(long_message, conversation.tokenizer_model_name)
+    print(f"Long message token count: {tokens}")
+    
+    # Display current conversation total token count
+    total_tokens = sum(count_tokens(msg["content"], conversation.tokenizer_model_name) 
+                      for msg in conversation.conversation_history)
+    print(f"Total token count before truncation: {total_tokens}")
+    
+    # Print the complete conversation history before truncation
+    print("\nConversation history before truncation:")
+    for i, msg in enumerate(conversation.conversation_history):
+        print(f"[{i}] {msg['role']}: {msg['content']}")
+        print(f"    Token count: {count_tokens(msg['content'], conversation.tokenizer_model_name)}")
+    
+    # Execute truncation
+    print("\nExecuting truncation...")
+    conversation.truncate_memory_with_tokenizer()
+    
+    # Print conversation history after truncation
+    print("\nConversation history after truncation:")
+    for i, msg in enumerate(conversation.conversation_history):
+        print(f"[{i}] {msg['role']}: {msg['content']}")
+        print(f"    Token count: {count_tokens(msg['content'], conversation.tokenizer_model_name)}")
+    
+    # Display total token count after truncation
+    total_tokens = sum(count_tokens(msg["content"], conversation.tokenizer_model_name) 
+                      for msg in conversation.conversation_history)
+    print(f"\nTotal token count after truncation: {total_tokens}")
+    print(f"Context length limit: {context_length}")
+    
+    # Verify if successfully truncated below the limit
+    if total_tokens <= context_length:
+        print("✅ Success: Total token count is now less than or equal to context length limit")
+    else:
+        print("❌ Failure: Total token count still exceeds context length limit")
+    
+    # Test sentence boundary truncation
+    print("\n\nTesting sentence boundary truncation:")
+    sentence_test = Conversation(context_length=15, tokenizer_model_name="claude-3-opus-20240229")
+    test_text = "This is the first sentence. This is the second very long sentence that contains a lot of content. This is the third sentence."
+    print(f"Original text: '{test_text}'")
+    print(f"Original token count: {count_tokens(test_text, sentence_test.tokenizer_model_name)}")
+    
+    # Using binary search for truncation
+    truncated = sentence_test._binary_search_truncate(test_text, 10, sentence_test.tokenizer_model_name)
+    print(f"Truncated text: '{truncated}'")
+    print(f"Truncated token count: {count_tokens(truncated, sentence_test.tokenizer_model_name)}")
+    
+    # Check if truncated at period
+    if truncated.endswith("."):
+        print("✅ Success: Text was truncated at sentence boundary")
+    else:
+        print("Note: Text was not truncated at sentence boundary")
+
+
+if __name__ == "__main__":
+    demonstrate_truncation()
\ No newline at end of file