mirror of
https://github.com/hwchase17/langchain
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955bd2e1db
Resolves issue https://github.com/hwchase17/langchain/issues/2252 --------- Co-authored-by: Abhik Singla <abhiksingla@microsoft.com>
93 lines
2.3 KiB
Python
93 lines
2.3 KiB
Python
"""Test functionality of Python REPL."""
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import sys
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import pytest
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from langchain.python import PythonREPL
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from langchain.tools.python.tool import PythonAstREPLTool, PythonREPLTool
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_SAMPLE_CODE = """
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```
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def multiply():
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print(5*6)
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multiply()
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```
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"""
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_AST_SAMPLE_CODE = """
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```
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def multiply():
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return(5*6)
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multiply()
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```
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"""
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def test_python_repl() -> None:
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"""Test functionality when globals/locals are not provided."""
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repl = PythonREPL()
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# Run a simple initial command.
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repl.run("foo = 1")
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assert repl.locals is not None
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assert repl.locals["foo"] == 1
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# Now run a command that accesses `foo` to make sure it still has it.
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repl.run("bar = foo * 2")
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assert repl.locals is not None
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assert repl.locals["bar"] == 2
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def test_python_repl_no_previous_variables() -> None:
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"""Test that it does not have access to variables created outside the scope."""
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foo = 3 # noqa: F841
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repl = PythonREPL()
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output = repl.run("print(foo)")
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assert output == "name 'foo' is not defined"
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def test_python_repl_pass_in_locals() -> None:
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"""Test functionality when passing in locals."""
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_locals = {"foo": 4}
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repl = PythonREPL(_locals=_locals)
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repl.run("bar = foo * 2")
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assert repl.locals is not None
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assert repl.locals["bar"] == 8
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def test_functionality() -> None:
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"""Test correct functionality."""
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chain = PythonREPL()
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code = "print(1 + 1)"
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output = chain.run(code)
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assert output == "2\n"
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def test_functionality_multiline() -> None:
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"""Test correct functionality for ChatGPT multiline commands."""
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chain = PythonREPL()
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tool = PythonREPLTool(python_repl=chain)
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output = tool.run(_SAMPLE_CODE)
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assert output == "30\n"
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def test_python_ast_repl_multiline() -> None:
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"""Test correct functionality for ChatGPT multiline commands."""
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if sys.version_info < (3, 9):
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pytest.skip("Python 3.9+ is required for this test")
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tool = PythonAstREPLTool()
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output = tool.run(_AST_SAMPLE_CODE)
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assert output == 30
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def test_function() -> None:
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"""Test correct functionality."""
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chain = PythonREPL()
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code = "def add(a, b): " " return a + b"
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output = chain.run(code)
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assert output == ""
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code = "print(add(1, 2))"
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output = chain.run(code)
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assert output == "3\n"
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