| import textwrap |
|
|
| import pyarrow as pa |
| import pytest |
|
|
| from datasets import Features, Value |
| from datasets.packaged_modules.json.json import Json |
|
|
|
|
| @pytest.fixture |
| def jsonl_file(tmp_path): |
| filename = tmp_path / "file.jsonl" |
| data = textwrap.dedent( |
| """\ |
| {"col_1": -1} |
| {"col_1": 1, "col_2": 2} |
| {"col_1": 10, "col_2": 20} |
| """ |
| ) |
| with open(filename, "w") as f: |
| f.write(data) |
| return str(filename) |
|
|
|
|
| @pytest.fixture |
| def jsonl_file_utf16_encoded(tmp_path): |
| filename = tmp_path / "file_utf16_encoded.jsonl" |
| data = textwrap.dedent( |
| """\ |
| {"col_1": -1} |
| {"col_1": 1, "col_2": 2} |
| {"col_1": 10, "col_2": 20} |
| """ |
| ) |
| with open(filename, "w", encoding="utf-16") as f: |
| f.write(data) |
| return str(filename) |
|
|
|
|
| @pytest.fixture |
| def json_file_with_list_of_dicts(tmp_path): |
| filename = tmp_path / "file_with_list_of_dicts.json" |
| data = textwrap.dedent( |
| """\ |
| [ |
| {"col_1": -1}, |
| {"col_1": 1, "col_2": 2}, |
| {"col_1": 10, "col_2": 20} |
| ] |
| """ |
| ) |
| with open(filename, "w") as f: |
| f.write(data) |
| return str(filename) |
|
|
|
|
| @pytest.fixture |
| def json_file_with_list_of_dicts_field(tmp_path): |
| filename = tmp_path / "file_with_list_of_dicts_field.json" |
| data = textwrap.dedent( |
| """\ |
| { |
| "field1": 1, |
| "field2": "aabb", |
| "field3": [ |
| {"col_1": -1}, |
| {"col_1": 1, "col_2": 2}, |
| {"col_1": 10, "col_2": 20} |
| ] |
| } |
| """ |
| ) |
| with open(filename, "w") as f: |
| f.write(data) |
| return str(filename) |
|
|
|
|
| @pytest.mark.parametrize( |
| "file_fixture, config_kwargs", |
| [ |
| ("jsonl_file", {}), |
| ("jsonl_file_utf16_encoded", {"encoding": "utf-16"}), |
| ("json_file_with_list_of_dicts", {}), |
| ("json_file_with_list_of_dicts_field", {"field": "field3"}), |
| ], |
| ) |
| def test_json_generate_tables(file_fixture, config_kwargs, request): |
| json = Json(**config_kwargs) |
| generator = json._generate_tables([[request.getfixturevalue(file_fixture)]]) |
| pa_table = pa.concat_tables([table for _, table in generator]) |
| assert pa_table.to_pydict() == {"col_1": [-1, 1, 10], "col_2": [None, 2, 20]} |
|
|
|
|
| @pytest.mark.parametrize( |
| "file_fixture, config_kwargs", |
| [ |
| ( |
| "jsonl_file", |
| {"features": Features({"col_1": Value("int64"), "col_2": Value("int64"), "missing_col": Value("string")})}, |
| ), |
| ( |
| "json_file_with_list_of_dicts", |
| {"features": Features({"col_1": Value("int64"), "col_2": Value("int64"), "missing_col": Value("string")})}, |
| ), |
| ( |
| "json_file_with_list_of_dicts_field", |
| { |
| "field": "field3", |
| "features": Features( |
| {"col_1": Value("int64"), "col_2": Value("int64"), "missing_col": Value("string")} |
| ), |
| }, |
| ), |
| ], |
| ) |
| def test_json_generate_tables_with_missing_features(file_fixture, config_kwargs, request): |
| json = Json(**config_kwargs) |
| generator = json._generate_tables([[request.getfixturevalue(file_fixture)]]) |
| pa_table = pa.concat_tables([table for _, table in generator]) |
| assert pa_table.to_pydict() == {"col_1": [-1, 1, 10], "col_2": [None, 2, 20], "missing_col": [None, None, None]} |
|
|
