tests-unit/utils/json_util_test.py

def merge_json_recursive(base, update):
    """Recursively merge two JSON-like objects.
    - Dictionaries are merged recursively
    - Lists are concatenated
    - Other types are overwritten by the update value

    Args:
        base: Base JSON-like object
        update: Update JSON-like object to merge into base

    Returns:
        Merged JSON-like object
    """
    if not isinstance(base, dict) or not isinstance(update, dict):
        if isinstance(base, list) and isinstance(update, list):
            return base + update
        return update

    merged = base.copy()
    for key, value in update.items():
        if key in merged:
            merged[key] = merge_json_recursive(merged[key], value)
        else:
            merged[key] = value

    return merged


def test_merge_simple_dicts():
    base = {"a": 1, "b": 2}
    update = {"b": 3, "c": 4}
    expected = {"a": 1, "b": 3, "c": 4}
    assert merge_json_recursive(base, update) == expected


def test_merge_nested_dicts():
    base = {"a": {"x": 1, "y": 2}, "b": 3}
    update = {"a": {"y": 4, "z": 5}}
    expected = {"a": {"x": 1, "y": 4, "z": 5}, "b": 3}
    assert merge_json_recursive(base, update) == expected


def test_merge_lists():
    base = {"a": [1, 2], "b": 3}
    update = {"a": [3, 4]}
    expected = {"a": [1, 2, 3, 4], "b": 3}
    assert merge_json_recursive(base, update) == expected


def test_merge_nested_lists():
    base = {"a": {"x": [1, 2]}}
    update = {"a": {"x": [3, 4]}}
    expected = {"a": {"x": [1, 2, 3, 4]}}
    assert merge_json_recursive(base, update) == expected


def test_merge_mixed_types():
    base = {"a": [1, 2], "b": {"x": 1}}
    update = {"a": [3], "b": {"y": 2}}
    expected = {"a": [1, 2, 3], "b": {"x": 1, "y": 2}}
    assert merge_json_recursive(base, update) == expected


def test_merge_overwrite_non_dict():
    base = {"a": 1}
    update = {"a": {"x": 2}}
    expected = {"a": {"x": 2}}
    assert merge_json_recursive(base, update) == expected


def test_merge_empty_dicts():
    base = {}
    update = {"a": 1}
    expected = {"a": 1}
    assert merge_json_recursive(base, update) == expected


def test_merge_none_values():
    base = {"a": None}
    update = {"a": {"x": 1}}
    expected = {"a": {"x": 1}}
    assert merge_json_recursive(base, update) == expected


def test_merge_different_types():
    base = {"a": [1, 2]}
    update = {"a": "string"}
    expected = {"a": "string"}
    assert merge_json_recursive(base, update) == expected


def test_merge_complex_nested():
    base = {"a": [1, 2], "b": {"x": [3, 4], "y": {"p": 1}}}
    update = {"a": [5], "b": {"x": [6], "y": {"q": 2}}}
    expected = {"a": [1, 2, 5], "b": {"x": [3, 4, 6], "y": {"p": 1, "q": 2}}}
    assert merge_json_recursive(base, update) == expected