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"""Tests for the `utils` module."""
import pytest
from maison import typedefs
from maison.utils import deep_merge
class TestDeepMerge:
"""Tests for the `deep_merge` function."""
@pytest.mark.parametrize(
("a", "b", "expected"),
[
pytest.param(
{"1": "2", "3": "4"},
{"3": "5", "6": "7"},
{"1": "2", "3": "5", "6": "7"},
id="simple",
),
pytest.param(
{"1": "2", "3": {"4": "5", "6": "7"}},
{"3": {"6": "8", "9": "10"}, "11": "12"},
{"1": "2", "3": {"4": "5", "6": "8", "9": "10"}, "11": "12"},
id="nested",
),
],
)
def test_success(
self,
a: typedefs.ConfigValues,
b: typedefs.ConfigValues,
expected: typedefs.ConfigValues,
) -> None:
assert deep_merge(a, b) == expected
assert a == expected
def test_incompatible_dicts(self) -> None:
"""Trying to merge incompatible dicts returns an error"""
dict_a: typedefs.ConfigValues = {"1": "2", "2": "5"}
dict_b: typedefs.ConfigValues = {"1": {"3": "4"}}
with pytest.raises(RuntimeError):
_ = deep_merge(dict_a, dict_b)
|
