| 1 | # SPDX-License-Identifier: Apache-2.0 |
| 2 | # SPDX-FileCopyrightText: Copyright contributors to the vLLM project |
| 3 | import pytest |
| 4 | |
| 5 | from vllm.utils.collection_utils import ( |
| 6 | common_prefix, |
| 7 | is_list_of_numbers, |
| 8 | swap_dict_values, |
| 9 | ) |
| 10 | |
| 11 | |
| 12 | @pytest.mark.parametrize( |
| 13 | "value,expected", |
| 14 | [ |
| 15 | ([], True), |
| 16 | ([1, -2, 2**1024], True), |
| 17 | ([1, 0.5], True), |
| 18 | ([1, True], False), |
| 19 | ([1, float("nan")], False), |
| 20 | ([1, float("inf")], False), |
| 21 | ([1, -float("inf")], False), |
| 22 | ([1, "2"], False), |
| 23 | ([[1]], False), |
| 24 | ((1, 2), False), |
| 25 | (None, False), |
| 26 | ], |
| 27 | ) |
| 28 | def test_is_list_of_numbers_checks_all_finite_non_boolean_items(value, expected): |
| 29 | assert is_list_of_numbers(value) is expected |
| 30 | |
| 31 | |
| 32 | @pytest.mark.parametrize( |
| 33 | ("inputs", "expected_output"), |
| 34 | [ |
| 35 | ([""], ""), |
| 36 | (["a"], "a"), |
| 37 | (["a", "b"], ""), |
| 38 | (["a", "ab"], "a"), |
| 39 | (["a", "ab", "b"], ""), |
| 40 | (["abc", "a", "ab"], "a"), |
| 41 | (["aba", "abc", "ab"], "ab"), |
| 42 | ], |
| 43 | ) |
| 44 | def test_common_prefix(inputs, expected_output): |
| 45 | assert common_prefix(inputs) == expected_output |
| 46 | |
| 47 | |
| 48 | @pytest.mark.parametrize( |
| 49 | ("obj", "key1", "key2"), |
| 50 | [ |
| 51 | # Tests for both keys exist |
| 52 | ({1: "a", 2: "b"}, 1, 2), |
| 53 | # Tests for one key does not exist |
| 54 | ({1: "a", 2: "b"}, 1, 3), |
| 55 | # Tests for both keys do not exist |
| 56 | ({1: "a", 2: "b"}, 3, 4), |
| 57 | ], |
| 58 | ) |
| 59 | def test_swap_dict_values(obj, key1, key2): |
| 60 | original_obj = obj.copy() |
| 61 | |
| 62 | swap_dict_values(obj, key1, key2) |
| 63 | |
| 64 | if key1 in original_obj: |
| 65 | assert obj[key2] == original_obj[key1] |
| 66 | else: |
| 67 | assert key2 not in obj |
| 68 | if key2 in original_obj: |
| 69 | assert obj[key1] == original_obj[key2] |
| 70 | else: |
| 71 | assert key1 not in obj |