| import pytest |
|
|
| from datasets.parallel import ParallelBackendConfig, parallel_backend |
| from datasets.utils.py_utils import map_nested |
|
|
| from .utils import require_dill_gt_0_3_2, require_joblibspark, require_not_windows |
|
|
|
|
| def add_one(i): |
| return i + 1 |
|
|
|
|
| @require_dill_gt_0_3_2 |
| @require_joblibspark |
| @require_not_windows |
| def test_parallel_backend_input(): |
| with parallel_backend("spark"): |
| assert ParallelBackendConfig.backend_name == "spark" |
|
|
| lst = [1, 2, 3] |
| with pytest.raises(ValueError): |
| with parallel_backend("unsupported backend"): |
| map_nested(add_one, lst, num_proc=2) |
|
|
| with pytest.raises(ValueError): |
| with parallel_backend("unsupported backend"): |
| map_nested(add_one, lst, num_proc=-1) |
|
|
|
|
| @require_dill_gt_0_3_2 |
| @require_joblibspark |
| @require_not_windows |
| @pytest.mark.parametrize("num_proc", [2, -1]) |
| def test_parallel_backend_map_nested(num_proc): |
| s1 = [1, 2] |
| s2 = {"a": 1, "b": 2} |
| s3 = {"a": [1, 2], "b": [3, 4]} |
| s4 = {"a": {"1": 1}, "b": 2} |
| s5 = {"a": 1, "b": 2, "c": 3, "d": 4} |
| expected_map_nested_s1 = [2, 3] |
| expected_map_nested_s2 = {"a": 2, "b": 3} |
| expected_map_nested_s3 = {"a": [2, 3], "b": [4, 5]} |
| expected_map_nested_s4 = {"a": {"1": 2}, "b": 3} |
| expected_map_nested_s5 = {"a": 2, "b": 3, "c": 4, "d": 5} |
|
|
| with parallel_backend("spark"): |
| assert map_nested(add_one, s1, num_proc=num_proc) == expected_map_nested_s1 |
| assert map_nested(add_one, s2, num_proc=num_proc) == expected_map_nested_s2 |
| assert map_nested(add_one, s3, num_proc=num_proc) == expected_map_nested_s3 |
| assert map_nested(add_one, s4, num_proc=num_proc) == expected_map_nested_s4 |
| assert map_nested(add_one, s5, num_proc=num_proc) == expected_map_nested_s5 |
|
|
