langchain-ai/langchainjs langchain@1.2.30

on GitHub

Patch Changes

• #10262 b0175a5 Thanks @maahir30! - fix: Move fakeModel from utils/testing to testing namespace
  move to updated namespace

• #10185 414f6ed Thanks @maahir30! - feat: add custom Vitest matchers for LangChain message and tool call assertions

  Adds a new @langchain/core/testing/matchers export containing custom Vitest matchers (toBeHumanMessage, toBeAIMessage, toBeSystemMessage, toBeToolMessage, toHaveToolCalls, toHaveToolCallCount, toContainToolCall, toHaveToolMessages, toHaveBeenInterrupted, toHaveStructuredResponse) that external users can register via expect.extend(langchainMatchers) in their Vitest setup files. Re-exported from langchain for convenience.

• Updated dependencies [7373b4c, b0175a5, 414f6ed]:

  • @langchain/core@1.1.31