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test_chat_prompt_template_message_class_tuples_append() — langchain Function Reference

Architecture documentation for the test_chat_prompt_template_message_class_tuples_append() function in test_chat.py from the langchain codebase.

Function python CoreAbstractions MessageSchema

Entity Profile

Dependency Diagram

graph TD
  fa20cc8d_17d5_2854_94e9_209a8b8cc075["test_chat_prompt_template_message_class_tuples_append()"]
  bf3138ca_0068_68ea_f479_35376e264d13["test_chat.py"]
  fa20cc8d_17d5_2854_94e9_209a8b8cc075 -->|defined in| bf3138ca_0068_68ea_f479_35376e264d13
  style fa20cc8d_17d5_2854_94e9_209a8b8cc075 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

libs/core/tests/unit_tests/prompts/test_chat.py lines 501–516

def test_chat_prompt_template_message_class_tuples_append() -> None:
    """Test appending message class tuples to existing template."""
    template = ChatPromptTemplate.from_messages(
        [
            (SystemMessage, "You are helpful."),
        ]
    )

    template.append((HumanMessage, "{question}"))

    messages = template.format_messages(question="What is AI?")

    assert len(messages) == 2
    assert isinstance(messages[0], SystemMessage)
    assert isinstance(messages[1], HumanMessage)
    assert messages[1].content == "What is AI?"

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Frequently Asked Questions

What does test_chat_prompt_template_message_class_tuples_append() do?
test_chat_prompt_template_message_class_tuples_append() is a function in the langchain codebase, defined in libs/core/tests/unit_tests/prompts/test_chat.py.
Where is test_chat_prompt_template_message_class_tuples_append() defined?
test_chat_prompt_template_message_class_tuples_append() is defined in libs/core/tests/unit_tests/prompts/test_chat.py at line 501.

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