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test_grep_basic_search_python_fallback() — langchain Function Reference

Architecture documentation for the test_grep_basic_search_python_fallback() function in test_file_search.py from the langchain codebase.

Function python LangChainCore Runnables

Entity Profile

Dependency Diagram

graph TD
  2e2518f5_1068_68a1_ae83_7fca3e90f48a["test_grep_basic_search_python_fallback()"]
  3358c7da_0c80_0cf4_72fe_8cc779a1ec74["TestFilesystemGrepSearch"]
  2e2518f5_1068_68a1_ae83_7fca3e90f48a -->|defined in| 3358c7da_0c80_0cf4_72fe_8cc779a1ec74
  style 2e2518f5_1068_68a1_ae83_7fca3e90f48a fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_file_search.py lines 61–75

    def test_grep_basic_search_python_fallback(self, tmp_path: Path) -> None:
        """Test basic grep search using Python fallback."""
        (tmp_path / "file1.py").write_text("def hello():\n    pass\n", encoding="utf-8")
        (tmp_path / "file2.py").write_text("def world():\n    pass\n", encoding="utf-8")
        (tmp_path / "file3.txt").write_text("hello world\n", encoding="utf-8")

        middleware = FilesystemFileSearchMiddleware(root_path=str(tmp_path), use_ripgrep=False)

        assert isinstance(middleware.grep_search, StructuredTool)
        assert middleware.grep_search.func is not None
        result = middleware.grep_search.func(pattern="hello")

        assert "/file1.py" in result
        assert "/file3.txt" in result
        assert "/file2.py" not in result

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Frequently Asked Questions

What does test_grep_basic_search_python_fallback() do?
test_grep_basic_search_python_fallback() is a function in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_file_search.py.
Where is test_grep_basic_search_python_fallback() defined?
test_grep_basic_search_python_fallback() is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_file_search.py at line 61.

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