mirror of
https://github.com/hwchase17/langchain
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27 lines
821 B
Python
27 lines
821 B
Python
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"""Test formatting functionality."""
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import pytest
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from langchain.formatting import formatter
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def test_valid_formatting() -> None:
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"""Test formatting works as expected."""
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template = "This is a {foo} test."
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output = formatter.format(template, foo="good")
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expected_output = "This is a good test."
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assert output == expected_output
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def test_does_not_allow_args() -> None:
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"""Test formatting raises error when args are provided."""
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template = "This is a {} test."
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with pytest.raises(ValueError):
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formatter.format(template, "good")
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def test_does_not_allow_extra_kwargs() -> None:
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"""Test formatting does not allow extra key word arguments."""
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template = "This is a {foo} test."
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with pytest.raises(KeyError):
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formatter.format(template, foo="good", bar="oops")
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