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import pytest
from io import StringIO
from pathlib import Path
import gzip
import numpy
from .._json_api import (
read_json,
write_json,
read_jsonl,
write_jsonl,
read_gzip_jsonl,
write_gzip_jsonl,
)
from .._json_api import write_gzip_json, json_dumps, is_json_serializable
from .._json_api import json_loads
from ..util import force_string
from .util import make_tempdir
def test_json_dumps_sort_keys():
data = {"a": 1, "c": 3, "b": 2}
result = json_dumps(data, sort_keys=True)
assert result == '{"a":1,"b":2,"c":3}'
def test_read_json_file():
file_contents = '{\n "hello": "world"\n}'
with make_tempdir({"tmp.json": file_contents}) as temp_dir:
file_path = temp_dir / "tmp.json"
assert file_path.exists()
data = read_json(file_path)
assert len(data) == 1
assert data["hello"] == "world"
def test_read_json_file_invalid():
file_contents = '{\n "hello": world\n}'
with make_tempdir({"tmp.json": file_contents}) as temp_dir:
file_path = temp_dir / "tmp.json"
assert file_path.exists()
with pytest.raises(ValueError):
read_json(file_path)
def test_read_json_stdin(monkeypatch):
input_data = '{\n "hello": "world"\n}'
monkeypatch.setattr("sys.stdin", StringIO(input_data))
data = read_json("-")
assert len(data) == 1
assert data["hello"] == "world"
def test_write_json_file():
data = {"hello": "world", "test": 123}
# Provide two expected options, depending on how keys are ordered
expected = [
'{\n "hello":"world",\n "test":123\n}',
'{\n "test":123,\n "hello":"world"\n}',
]
with make_tempdir() as temp_dir:
file_path = temp_dir / "tmp.json"
write_json(file_path, data)
with Path(file_path).open("r", encoding="utf8") as f:
assert f.read() in expected
def test_write_json_file_gzip():
data = {"hello": "world", "test": 123}
# Provide two expected options, depending on how keys are ordered
expected = [
'{\n "hello":"world",\n "test":123\n}',
'{\n "test":123,\n "hello":"world"\n}',
]
with make_tempdir() as temp_dir:
file_path = force_string(temp_dir / "tmp.json")
write_gzip_json(file_path, data)
with gzip.open(file_path, "r") as f:
assert f.read().decode("utf8") in expected
def test_write_json_stdout(capsys):
data = {"hello": "world", "test": 123}
# Provide two expected options, depending on how keys are ordered
expected = [
'{\n "hello":"world",\n "test":123\n}\n',
'{\n "test":123,\n "hello":"world"\n}\n',
]
write_json("-", data)
captured = capsys.readouterr()
assert captured.out in expected
def test_read_jsonl_file():
file_contents = '{"hello": "world"}\n{"test": 123}'
with make_tempdir({"tmp.json": file_contents}) as temp_dir:
file_path = temp_dir / "tmp.json"
assert file_path.exists()
data = read_jsonl(file_path)
# Make sure this returns a generator, not just a list
assert not hasattr(data, "__len__")
data = list(data)
assert len(data) == 2
assert len(data[0]) == 1
assert len(data[1]) == 1
assert data[0]["hello"] == "world"
assert data[1]["test"] == 123
def test_read_jsonl_file_invalid():
file_contents = '{"hello": world}\n{"test": 123}'
with make_tempdir({"tmp.json": file_contents}) as temp_dir:
file_path = temp_dir / "tmp.json"
assert file_path.exists()
with pytest.raises(ValueError):
data = list(read_jsonl(file_path))
data = list(read_jsonl(file_path, skip=True))
assert len(data) == 1
assert len(data[0]) == 1
assert data[0]["test"] == 123
def test_read_jsonl_stdin(monkeypatch):
input_data = '{"hello": "world"}\n{"test": 123}'
monkeypatch.setattr("sys.stdin", StringIO(input_data))
data = read_jsonl("-")
# Make sure this returns a generator, not just a list
assert not hasattr(data, "__len__")
data = list(data)
assert len(data) == 2
assert len(data[0]) == 1
assert len(data[1]) == 1
assert data[0]["hello"] == "world"
assert data[1]["test"] == 123
def test_write_jsonl_file():
data = [{"hello": "world"}, {"test": 123}]
with make_tempdir() as temp_dir:
file_path = temp_dir / "tmp.json"
write_jsonl(file_path, data)
with Path(file_path).open("r", encoding="utf8") as f:
assert f.read() == '{"hello":"world"}\n{"test":123}\n'
def test_write_jsonl_file_append():
data = [{"hello": "world"}, {"test": 123}]
expected = '{"hello":"world"}\n{"test":123}\n\n{"hello":"world"}\n{"test":123}\n'
with make_tempdir() as temp_dir:
file_path = temp_dir / "tmp.json"
write_jsonl(file_path, data)
write_jsonl(file_path, data, append=True)
with Path(file_path).open("r", encoding="utf8") as f:
assert f.read() == expected
def test_write_jsonl_file_append_no_new_line():
data = [{"hello": "world"}, {"test": 123}]
expected = '{"hello":"world"}\n{"test":123}\n{"hello":"world"}\n{"test":123}\n'
with make_tempdir() as temp_dir:
file_path = temp_dir / "tmp.json"
write_jsonl(file_path, data)
write_jsonl(file_path, data, append=True, append_new_line=False)
with Path(file_path).open("r", encoding="utf8") as f:
assert f.read() == expected
def test_write_jsonl_stdout(capsys):
data = [{"hello": "world"}, {"test": 123}]
write_jsonl("-", data)
captured = capsys.readouterr()
assert captured.out == '{"hello":"world"}\n{"test":123}\n'
@pytest.mark.parametrize(
"obj,expected",
[
(["a", "b", 1, 2], True),
({"a": "b", "c": 123}, True),
("hello", True),
(lambda x: x, False),
],
)
def test_is_json_serializable(obj, expected):
assert is_json_serializable(obj) == expected
@pytest.mark.parametrize(
"obj,expected",
[
("-32", -32),
("32", 32),
("0", 0),
("-0", 0),
],
)
def test_json_loads_number_string(obj, expected):
assert json_loads(obj) == expected
@pytest.mark.parametrize(
"obj",
["HI", "-", "-?", "?!", "THIS IS A STRING"],
)
def test_json_loads_raises(obj):
with pytest.raises(ValueError):
json_loads(obj)
def test_unsupported_type_error():
f = numpy.float32()
with pytest.raises(TypeError):
s = json_dumps(f)
def test_write_jsonl_gzip():
"""Tests writing data to a gzipped .jsonl file."""
data = [{"hello": "world"}, {"test": 123}]
expected = ['{"hello":"world"}\n', '{"test":123}\n']
with make_tempdir() as temp_dir:
file_path = temp_dir / "tmp.json"
write_gzip_jsonl(file_path, data)
with gzip.open(file_path, "r") as f:
assert [line.decode("utf8") for line in f.readlines()] == expected
def test_write_jsonl_gzip_append():
"""Tests appending data to a gzipped .jsonl file."""
data = [{"hello": "world"}, {"test": 123}]
expected = [
'{"hello":"world"}\n',
'{"test":123}\n',
"\n",
'{"hello":"world"}\n',
'{"test":123}\n',
]
with make_tempdir() as temp_dir:
file_path = temp_dir / "tmp.json"
write_gzip_jsonl(file_path, data)
write_gzip_jsonl(file_path, data, append=True)
with gzip.open(file_path, "r") as f:
assert [line.decode("utf8") for line in f.readlines()] == expected
def test_read_jsonl_gzip():
"""Tests reading data from a gzipped .jsonl file."""
file_contents = [{"hello": "world"}, {"test": 123}]
with make_tempdir() as temp_dir:
file_path = temp_dir / "tmp.json"
with gzip.open(file_path, "w") as f:
f.writelines(
[(json_dumps(line) + "\n").encode("utf-8") for line in file_contents]
)
assert file_path.exists()
data = read_gzip_jsonl(file_path)
# Make sure this returns a generator, not just a list
assert not hasattr(data, "__len__")
data = list(data)
assert len(data) == 2
assert len(data[0]) == 1
assert len(data[1]) == 1
assert data[0]["hello"] == "world"
assert data[1]["test"] == 123
|
