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/usr/local/lib64/python3.6/site-packages/pyarrow/tests/

/usr/local/lib64/python3.6/site-packages/pyarrow/tests

Name	Size	Mode	Actions
data/	-	0755	rm
parquet/	-	0755	rm
__pycache__/	-	0755	rm
arrow_7980.py	1094	0644	edit dl rm
bound_function_visit_strings.pyx	2047	0644	edit dl rm
conftest.py	7982	0644	edit dl rm
deserialize_buffer.py	961	0644	edit dl rm
pandas_examples.py	5115	0644	edit dl rm
pandas_threaded_import.py	1429	0644	edit dl rm
pyarrow_cython_example.pyx	1951	0644	edit dl rm
strategies.py	12525	0644	edit dl rm
test_adhoc_memory_leak.py	1410	0644	edit dl rm
test_array.py	100157	0644	edit dl rm
test_builder.py	2184	0644	edit dl rm
test_cffi.py	13090	0644	edit dl rm
test_compute.py	83551	0644	edit dl rm
test_convert_builtin.py	71768	0644	edit dl rm
test_csv.py	68943	0644	edit dl rm
test_cuda.py	27863	0644	edit dl rm
test_cuda_numba_interop.py	8730	0644	edit dl rm
test_cython.py	5948	0644	edit dl rm
test_dataset.py	143023	0644	edit dl rm
test_deprecations.py	891	0644	edit dl rm
test_extension_type.py	24437	0644	edit dl rm
test_feather.py	23209	0644	edit dl rm
test_filesystem.py	2106	0644	edit dl rm
test_flight.py	73715	0644	edit dl rm
test_fs.py	54133	0644	edit dl rm
test_gandiva.py	14385	0644	edit dl rm
test_hdfs.py	13452	0644	edit dl rm
test_io.py	53066	0644	edit dl rm
test_ipc.py	31267	0644	edit dl rm
test_json.py	11325	0644	edit dl rm
test_jvm.py	15471	0644	edit dl rm
test_memory.py	4928	0644	edit dl rm
test_misc.py	4927	0644	edit dl rm
test_orc.py	9221	0644	edit dl rm
test_pandas.py	157909	0644	edit dl rm
test_plasma.py	44011	0644	edit dl rm
test_plasma_tf_op.py	3523	0644	edit dl rm
test_scalars.py	21074	0644	edit dl rm
test_schema.py	21282	0644	edit dl rm
test_serialization.py	42026	0644	edit dl rm
test_serialization_deprecated.py	1775	0644	edit dl rm
test_sparse_tensor.py	17436	0644	edit dl rm
test_strategies.py	1739	0644	edit dl rm
test_table.py	53168	0644	edit dl rm
test_tensor.py	6270	0644	edit dl rm
test_types.py	31487	0644	edit dl rm
test_util.py	1791	0644	edit dl rm
util.py	9011	0644	edit dl rm
__init__.py	0	0644	edit dl rm

Edit: /usr/local/lib64/python3.6/site-packages/pyarrow/tests/test_json.py (11325B)

# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

from collections import OrderedDict
import io
import itertools
import json
import string
import unittest

import numpy as np
import pytest

import pyarrow as pa
from pyarrow.json import read_json, ReadOptions, ParseOptions

def generate_col_names():
    # 'a', 'b'... 'z', then 'aa', 'ab'...
    letters = string.ascii_lowercase
    yield from letters
    for first in letters:
        for second in letters:
            yield first + second

def make_random_json(num_cols=2, num_rows=10, linesep='\r\n'):
    arr = np.random.RandomState(42).randint(0, 1000, size=(num_cols, num_rows))
    col_names = list(itertools.islice(generate_col_names(), num_cols))
    lines = []
    for row in arr.T:
        json_obj = OrderedDict([(k, int(v)) for (k, v) in zip(col_names, row)])
        lines.append(json.dumps(json_obj))
    data = linesep.join(lines).encode()
    columns = [pa.array(col, type=pa.int64()) for col in arr]
    expected = pa.Table.from_arrays(columns, col_names)
    return data, expected

def test_read_options():
    cls = ReadOptions
    opts = cls()

assert opts.block_size > 0
    opts.block_size = 12345
    assert opts.block_size == 12345

assert opts.use_threads is True
    opts.use_threads = False
    assert opts.use_threads is False

opts = cls(block_size=1234, use_threads=False)
    assert opts.block_size == 1234
    assert opts.use_threads is False

def test_parse_options():
    cls = ParseOptions
    opts = cls()
    assert opts.newlines_in_values is False
    assert opts.explicit_schema is None

opts.newlines_in_values = True
    assert opts.newlines_in_values is True

schema = pa.schema([pa.field('foo', pa.int32())])
    opts.explicit_schema = schema
    assert opts.explicit_schema == schema

assert opts.unexpected_field_behavior == "infer"
    for value in ["ignore", "error", "infer"]:
        opts.unexpected_field_behavior = value
        assert opts.unexpected_field_behavior == value

with pytest.raises(ValueError):
        opts.unexpected_field_behavior = "invalid-value"

class BaseTestJSONRead:

def read_bytes(self, b, **kwargs):
        return self.read_json(pa.py_buffer(b), **kwargs)

def check_names(self, table, names):
        assert table.num_columns == len(names)
        assert [c.name for c in table.columns] == names

def test_file_object(self):
        data = b'{"a": 1, "b": 2}\n'
        expected_data = {'a': [1], 'b': [2]}
        bio = io.BytesIO(data)
        table = self.read_json(bio)
        assert table.to_pydict() == expected_data
        # Text files not allowed
        sio = io.StringIO(data.decode())
        with pytest.raises(TypeError):
            self.read_json(sio)

def test_block_sizes(self):
        rows = b'{"a": 1}\n{"a": 2}\n{"a": 3}'
        read_options = ReadOptions()
        parse_options = ParseOptions()

for data in [rows, rows + b'\n']:
            for newlines_in_values in [False, True]:
                parse_options.newlines_in_values = newlines_in_values
                read_options.block_size = 4
                with pytest.raises(ValueError,
                                   match="try to increase block size"):
                    self.read_bytes(data, read_options=read_options,
                                    parse_options=parse_options)

# Validate reader behavior with various block sizes.
                # There used to be bugs in this area.
                for block_size in range(9, 20):
                    read_options.block_size = block_size
                    table = self.read_bytes(data, read_options=read_options,
                                            parse_options=parse_options)
                    assert table.to_pydict() == {'a': [1, 2, 3]}

def test_no_newline_at_end(self):
        rows = b'{"a": 1,"b": 2, "c": 3}\n{"a": 4,"b": 5, "c": 6}'
        table = self.read_bytes(rows)
        assert table.to_pydict() == {
            'a': [1, 4],
            'b': [2, 5],
            'c': [3, 6],
        }

def test_simple_ints(self):
        # Infer integer columns
        rows = b'{"a": 1,"b": 2, "c": 3}\n{"a": 4,"b": 5, "c": 6}\n'
        table = self.read_bytes(rows)
        schema = pa.schema([('a', pa.int64()),
                            ('b', pa.int64()),
                            ('c', pa.int64())])
        assert table.schema == schema
        assert table.to_pydict() == {
            'a': [1, 4],
            'b': [2, 5],
            'c': [3, 6],
        }

def test_simple_varied(self):
        # Infer various kinds of data
        rows = (b'{"a": 1,"b": 2, "c": "3", "d": false}\n'
                b'{"a": 4.0, "b": -5, "c": "foo", "d": true}\n')
        table = self.read_bytes(rows)
        schema = pa.schema([('a', pa.float64()),
                            ('b', pa.int64()),
                            ('c', pa.string()),
                            ('d', pa.bool_())])
        assert table.schema == schema
        assert table.to_pydict() == {
            'a': [1.0, 4.0],
            'b': [2, -5],
            'c': ["3", "foo"],
            'd': [False, True],
        }

def test_simple_nulls(self):
        # Infer various kinds of data, with nulls
        rows = (b'{"a": 1, "b": 2, "c": null, "d": null, "e": null}\n'
                b'{"a": null, "b": -5, "c": "foo", "d": null, "e": true}\n'
                b'{"a": 4.5, "b": null, "c": "nan", "d": null,"e": false}\n')
        table = self.read_bytes(rows)
        schema = pa.schema([('a', pa.float64()),
                            ('b', pa.int64()),
                            ('c', pa.string()),
                            ('d', pa.null()),
                            ('e', pa.bool_())])
        assert table.schema == schema
        assert table.to_pydict() == {
            'a': [1.0, None, 4.5],
            'b': [2, -5, None],
            'c': [None, "foo", "nan"],
            'd': [None, None, None],
            'e': [None, True, False],
        }

def test_empty_lists(self):
        # ARROW-10955: Infer list(null)
        rows = b'{"a": []}'
        table = self.read_bytes(rows)
        schema = pa.schema([('a', pa.list_(pa.null()))])
        assert table.schema == schema
        assert table.to_pydict() == {'a': [[]]}

def test_empty_rows(self):
        rows = b'{}\n{}\n'
        table = self.read_bytes(rows)
        schema = pa.schema([])
        assert table.schema == schema
        assert table.num_columns == 0
        assert table.num_rows == 2

def test_reconcile_accross_blocks(self):
        # ARROW-12065: reconciling inferred types accross blocks
        first_row = b'{                               }\n'
        read_options = ReadOptions(block_size=len(first_row))
        for next_rows, expected_pylist in [
            (b'{"a": 0}', [None, 0]),
            (b'{"a": []}', [None, []]),
            (b'{"a": []}\n{"a": [[1]]}', [None, [], [[1]]]),
            (b'{"a": {}}', [None, {}]),
            (b'{"a": {}}\n{"a": {"b": {"c": 1}}}',
             [None, {"b": None}, {"b": {"c": 1}}]),
        ]:
            table = self.read_bytes(first_row + next_rows,
                                    read_options=read_options)
            expected = {"a": expected_pylist}
            assert table.to_pydict() == expected
            # Check that the issue was exercised
            assert table.column("a").num_chunks > 1

def test_explicit_schema_with_unexpected_behaviour(self):
        # infer by default
        rows = (b'{"foo": "bar", "num": 0}\n'
                b'{"foo": "baz", "num": 1}\n')
        schema = pa.schema([
            ('foo', pa.binary())
        ])

opts = ParseOptions(explicit_schema=schema)
        table = self.read_bytes(rows, parse_options=opts)
        assert table.schema == pa.schema([
            ('foo', pa.binary()),
            ('num', pa.int64())
        ])
        assert table.to_pydict() == {
            'foo': [b'bar', b'baz'],
            'num': [0, 1],
        }

# ignore the unexpected fields
        opts = ParseOptions(explicit_schema=schema,
                            unexpected_field_behavior="ignore")
        table = self.read_bytes(rows, parse_options=opts)
        assert table.schema == pa.schema([
            ('foo', pa.binary()),
        ])
        assert table.to_pydict() == {
            'foo': [b'bar', b'baz'],
        }

# raise error
        opts = ParseOptions(explicit_schema=schema,
                            unexpected_field_behavior="error")
        with pytest.raises(pa.ArrowInvalid,
                           match="JSON parse error: unexpected field"):
            self.read_bytes(rows, parse_options=opts)

def test_small_random_json(self):
        data, expected = make_random_json(num_cols=2, num_rows=10)
        table = self.read_bytes(data)
        assert table.schema == expected.schema
        assert table.equals(expected)
        assert table.to_pydict() == expected.to_pydict()

def test_stress_block_sizes(self):
        # Test a number of small block sizes to stress block stitching
        data_base, expected = make_random_json(num_cols=2, num_rows=100)
        read_options = ReadOptions()
        parse_options = ParseOptions()

for data in [data_base, data_base.rstrip(b'\r\n')]:
            for newlines_in_values in [False, True]:
                parse_options.newlines_in_values = newlines_in_values
                for block_size in [22, 23, 37]:
                    read_options.block_size = block_size
                    table = self.read_bytes(data, read_options=read_options,
                                            parse_options=parse_options)
                    assert table.schema == expected.schema
                    if not table.equals(expected):
                        # Better error output
                        assert table.to_pydict() == expected.to_pydict()

class TestSerialJSONRead(BaseTestJSONRead, unittest.TestCase):

def read_json(self, *args, **kwargs):
        read_options = kwargs.setdefault('read_options', ReadOptions())
        read_options.use_threads = False
        table = read_json(*args, **kwargs)
        table.validate(full=True)
        return table

class TestParallelJSONRead(BaseTestJSONRead, unittest.TestCase):

def read_json(self, *args, **kwargs):
        read_options = kwargs.setdefault('read_options', ReadOptions())
        read_options.use_threads = True
        table = read_json(*args, **kwargs)
        table.validate(full=True)
        return table

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