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test_chat_prompt_template_message_class_tuples_concatenation() — langchain Function Reference

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

Function python LangChainCore LanguageModelBase

Entity Profile

Dependency Diagram

graph TD
  249437e4_2966_0ec2_9ddc_0da86bbef212["test_chat_prompt_template_message_class_tuples_concatenation()"]
  00c8bbe0_a31c_1ac8_487a_bfd5a9d6b117["test_chat.py"]
  249437e4_2966_0ec2_9ddc_0da86bbef212 -->|defined in| 00c8bbe0_a31c_1ac8_487a_bfd5a9d6b117
  style 249437e4_2966_0ec2_9ddc_0da86bbef212 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/prompts/test_chat.py lines 542–561

def test_chat_prompt_template_message_class_tuples_concatenation() -> None:
    """Test concatenating two templates with message class tuples."""
    template1 = ChatPromptTemplate.from_messages(
        [
            (SystemMessage, "You are {name}."),
        ]
    )

    template2 = ChatPromptTemplate.from_messages(
        [
            (HumanMessage, "{question}"),
        ]
    )

    combined = template1 + template2
    messages = combined.format_messages(name="Alice", question="Hello?")

    assert len(messages) == 2
    assert messages[0].content == "You are Alice."
    assert messages[1].content == "Hello?"

Domain

Subdomains

Defined In

Source

Frequently Asked Questions

What does test_chat_prompt_template_message_class_tuples_concatenation() do?
test_chat_prompt_template_message_class_tuples_concatenation() 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_concatenation() defined?
test_chat_prompt_template_message_class_tuples_concatenation() is defined in libs/core/tests/unit_tests/prompts/test_chat.py at line 542.

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