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test_grep_no_matches() — langchain Function Reference

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

Function python LangChainCore ApiManagement

Entity Profile

Dependency Diagram

graph TD
  0d292765_278e_dc9e_ba87_cbfa3fcd84ba["test_grep_no_matches()"]
  3358c7da_0c80_0cf4_72fe_8cc779a1ec74["TestFilesystemGrepSearch"]
  0d292765_278e_dc9e_ba87_cbfa3fcd84ba -->|defined in| 3358c7da_0c80_0cf4_72fe_8cc779a1ec74
  style 0d292765_278e_dc9e_ba87_cbfa3fcd84ba 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 127–137

    def test_grep_no_matches(self, tmp_path: Path) -> None:
        """Test grep search with no matches."""
        (tmp_path / "test.py").write_text("hello\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="notfound")

        assert result == "No matches found"

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Defined In

Source

Frequently Asked Questions

What does test_grep_no_matches() do?
test_grep_no_matches() 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_no_matches() defined?
test_grep_no_matches() is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_file_search.py at line 127.

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