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test__helpers.py
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test__helpers.py
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# Copyright 2015 Google LLC
#
# Licensed 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.
import base64
import datetime
import decimal
import unittest
import mock
class Test_not_null(unittest.TestCase):
def _call_fut(self, value, field):
from google.cloud.bigquery._helpers import _not_null
return _not_null(value, field)
def test_w_none_nullable(self):
self.assertFalse(self._call_fut(None, _Field("NULLABLE")))
def test_w_none_required(self):
self.assertTrue(self._call_fut(None, _Field("REQUIRED")))
def test_w_value(self):
self.assertTrue(self._call_fut(object(), object()))
class Test_int_from_json(unittest.TestCase):
def _call_fut(self, value, field):
from google.cloud.bigquery._helpers import _int_from_json
return _int_from_json(value, field)
def test_w_none_nullable(self):
self.assertIsNone(self._call_fut(None, _Field("NULLABLE")))
def test_w_none_required(self):
with self.assertRaises(TypeError):
self._call_fut(None, _Field("REQUIRED"))
def test_w_string_value(self):
coerced = self._call_fut("42", object())
self.assertEqual(coerced, 42)
def test_w_float_value(self):
coerced = self._call_fut(42, object())
self.assertEqual(coerced, 42)
class Test_float_from_json(unittest.TestCase):
def _call_fut(self, value, field):
from google.cloud.bigquery._helpers import _float_from_json
return _float_from_json(value, field)
def test_w_none_nullable(self):
self.assertIsNone(self._call_fut(None, _Field("NULLABLE")))
def test_w_none_required(self):
with self.assertRaises(TypeError):
self._call_fut(None, _Field("REQUIRED"))
def test_w_string_value(self):
coerced = self._call_fut("3.1415", object())
self.assertEqual(coerced, 3.1415)
def test_w_float_value(self):
coerced = self._call_fut(3.1415, object())
self.assertEqual(coerced, 3.1415)
class Test_decimal_from_json(unittest.TestCase):
def _call_fut(self, value, field):
from google.cloud.bigquery._helpers import _decimal_from_json
return _decimal_from_json(value, field)
def test_w_none_nullable(self):
self.assertIsNone(self._call_fut(None, _Field("NULLABLE")))
def test_w_none_required(self):
with self.assertRaises(TypeError):
self._call_fut(None, _Field("REQUIRED"))
def test_w_string_value(self):
coerced = self._call_fut("3.1415", object())
self.assertEqual(coerced, decimal.Decimal("3.1415"))
def test_w_float_value(self):
coerced = self._call_fut(3.1415, object())
# There is no exact float representation of 3.1415.
self.assertEqual(coerced, decimal.Decimal(3.1415))
class Test_bool_from_json(unittest.TestCase):
def _call_fut(self, value, field):
from google.cloud.bigquery._helpers import _bool_from_json
return _bool_from_json(value, field)
def test_w_none_nullable(self):
self.assertIsNone(self._call_fut(None, _Field("NULLABLE")))
def test_w_none_required(self):
with self.assertRaises(AttributeError):
self._call_fut(None, _Field("REQUIRED"))
def test_w_value_t(self):
coerced = self._call_fut("T", object())
self.assertTrue(coerced)
def test_w_value_true(self):
coerced = self._call_fut("True", object())
self.assertTrue(coerced)
def test_w_value_1(self):
coerced = self._call_fut("1", object())
self.assertTrue(coerced)
def test_w_value_other(self):
coerced = self._call_fut("f", object())
self.assertFalse(coerced)
class Test_string_from_json(unittest.TestCase):
def _call_fut(self, value, field):
from google.cloud.bigquery._helpers import _string_from_json
return _string_from_json(value, field)
def test_w_none_nullable(self):
self.assertIsNone(self._call_fut(None, _Field("NULLABLE")))
def test_w_none_required(self):
self.assertIsNone(self._call_fut(None, _Field("REQUIRED")))
def test_w_string_value(self):
coerced = self._call_fut("Wonderful!", object())
self.assertEqual(coerced, "Wonderful!")
class Test_bytes_from_json(unittest.TestCase):
def _call_fut(self, value, field):
from google.cloud.bigquery._helpers import _bytes_from_json
return _bytes_from_json(value, field)
def test_w_none_nullable(self):
self.assertIsNone(self._call_fut(None, _Field("NULLABLE")))
def test_w_none_required(self):
with self.assertRaises(TypeError):
self._call_fut(None, _Field("REQUIRED"))
def test_w_base64_encoded_bytes(self):
expected = b"Wonderful!"
encoded = base64.standard_b64encode(expected)
coerced = self._call_fut(encoded, object())
self.assertEqual(coerced, expected)
def test_w_base64_encoded_text(self):
expected = b"Wonderful!"
encoded = base64.standard_b64encode(expected).decode("ascii")
coerced = self._call_fut(encoded, object())
self.assertEqual(coerced, expected)
class Test_timestamp_from_json(unittest.TestCase):
def _call_fut(self, value, field):
from google.cloud.bigquery._helpers import _timestamp_from_json
return _timestamp_from_json(value, field)
def test_w_none_nullable(self):
self.assertIsNone(self._call_fut(None, _Field("NULLABLE")))
def test_w_none_required(self):
with self.assertRaises(TypeError):
self._call_fut(None, _Field("REQUIRED"))
def test_w_string_int_value(self):
from google.cloud._helpers import _EPOCH
coerced = self._call_fut("1234567", object())
self.assertEqual(
coerced, _EPOCH + datetime.timedelta(seconds=1, microseconds=234567)
)
def test_w_int_value(self):
from google.cloud._helpers import _EPOCH
coerced = self._call_fut(1234567, object())
self.assertEqual(
coerced, _EPOCH + datetime.timedelta(seconds=1, microseconds=234567)
)
class Test_timestamp_query_param_from_json(unittest.TestCase):
def _call_fut(self, value, field):
from google.cloud.bigquery import _helpers
return _helpers._timestamp_query_param_from_json(value, field)
def test_w_none_nullable(self):
self.assertIsNone(self._call_fut(None, _Field("NULLABLE")))
def test_w_timestamp_valid(self):
from google.cloud._helpers import UTC
samples = [
(
"2016-12-20 15:58:27.339328+00:00",
datetime.datetime(2016, 12, 20, 15, 58, 27, 339328, tzinfo=UTC),
),
(
"2016-12-20 15:58:27+00:00",
datetime.datetime(2016, 12, 20, 15, 58, 27, tzinfo=UTC),
),
(
"2016-12-20T15:58:27.339328+00:00",
datetime.datetime(2016, 12, 20, 15, 58, 27, 339328, tzinfo=UTC),
),
(
"2016-12-20T15:58:27+00:00",
datetime.datetime(2016, 12, 20, 15, 58, 27, tzinfo=UTC),
),
(
"2016-12-20 15:58:27.339328Z",
datetime.datetime(2016, 12, 20, 15, 58, 27, 339328, tzinfo=UTC),
),
(
"2016-12-20 15:58:27Z",
datetime.datetime(2016, 12, 20, 15, 58, 27, tzinfo=UTC),
),
(
"2016-12-20T15:58:27.339328Z",
datetime.datetime(2016, 12, 20, 15, 58, 27, 339328, tzinfo=UTC),
),
(
"2016-12-20T15:58:27Z",
datetime.datetime(2016, 12, 20, 15, 58, 27, tzinfo=UTC),
),
]
for timestamp_str, expected_result in samples:
self.assertEqual(
self._call_fut(timestamp_str, _Field("NULLABLE")), expected_result
)
def test_w_timestamp_invalid(self):
with self.assertRaises(ValueError):
self._call_fut("definitely-not-a-timestamp", _Field("NULLABLE"))
class Test_datetime_from_json(unittest.TestCase):
def _call_fut(self, value, field):
from google.cloud.bigquery._helpers import _datetime_from_json
return _datetime_from_json(value, field)
def test_w_none_nullable(self):
self.assertIsNone(self._call_fut(None, _Field("NULLABLE")))
def test_w_none_required(self):
with self.assertRaises(TypeError):
self._call_fut(None, _Field("REQUIRED"))
def test_w_string_value(self):
coerced = self._call_fut("2016-12-02T18:51:33", object())
self.assertEqual(coerced, datetime.datetime(2016, 12, 2, 18, 51, 33))
def test_w_microseconds(self):
coerced = self._call_fut("2015-05-22T10:11:12.987654", object())
self.assertEqual(coerced, datetime.datetime(2015, 5, 22, 10, 11, 12, 987654))
class Test_date_from_json(unittest.TestCase):
def _call_fut(self, value, field):
from google.cloud.bigquery._helpers import _date_from_json
return _date_from_json(value, field)
def test_w_none_nullable(self):
self.assertIsNone(self._call_fut(None, _Field("NULLABLE")))
def test_w_none_required(self):
with self.assertRaises(TypeError):
self._call_fut(None, _Field("REQUIRED"))
def test_w_string_value(self):
coerced = self._call_fut("1987-09-22", object())
self.assertEqual(coerced, datetime.date(1987, 9, 22))
class Test_time_from_json(unittest.TestCase):
def _call_fut(self, value, field):
from google.cloud.bigquery._helpers import _time_from_json
return _time_from_json(value, field)
def test_w_none_nullable(self):
self.assertIsNone(self._call_fut(None, _Field("NULLABLE")))
def test_w_none_required(self):
with self.assertRaises(TypeError):
self._call_fut(None, _Field("REQUIRED"))
def test_w_string_value(self):
coerced = self._call_fut("12:12:27", object())
self.assertEqual(coerced, datetime.time(12, 12, 27))
def test_w_subsecond_string_value(self):
coerced = self._call_fut("12:12:27.123456", object())
self.assertEqual(coerced, datetime.time(12, 12, 27, 123456))
def test_w_bogus_string_value(self):
with self.assertRaises(ValueError):
self._call_fut("12:12:27.123", object())
class Test_record_from_json(unittest.TestCase):
def _call_fut(self, value, field):
from google.cloud.bigquery._helpers import _record_from_json
return _record_from_json(value, field)
def test_w_none_nullable(self):
self.assertIsNone(self._call_fut(None, _Field("NULLABLE")))
def test_w_none_required(self):
with self.assertRaises(TypeError):
self._call_fut(None, _Field("REQUIRED"))
def test_w_nullable_subfield_none(self):
subfield = _Field("NULLABLE", "age", "INTEGER")
field = _Field("REQUIRED", fields=[subfield])
value = {"f": [{"v": None}]}
coerced = self._call_fut(value, field)
self.assertEqual(coerced, {"age": None})
def test_w_scalar_subfield(self):
subfield = _Field("REQUIRED", "age", "INTEGER")
field = _Field("REQUIRED", fields=[subfield])
value = {"f": [{"v": 42}]}
coerced = self._call_fut(value, field)
self.assertEqual(coerced, {"age": 42})
def test_w_scalar_subfield_geography(self):
subfield = _Field("REQUIRED", "geo", "GEOGRAPHY")
field = _Field("REQUIRED", fields=[subfield])
value = {"f": [{"v": "POINT(1, 2)"}]}
coerced = self._call_fut(value, field)
self.assertEqual(coerced, {"geo": "POINT(1, 2)"})
def test_w_repeated_subfield(self):
subfield = _Field("REPEATED", "color", "STRING")
field = _Field("REQUIRED", fields=[subfield])
value = {"f": [{"v": [{"v": "red"}, {"v": "yellow"}, {"v": "blue"}]}]}
coerced = self._call_fut(value, field)
self.assertEqual(coerced, {"color": ["red", "yellow", "blue"]})
def test_w_record_subfield(self):
full_name = _Field("REQUIRED", "full_name", "STRING")
area_code = _Field("REQUIRED", "area_code", "STRING")
local_number = _Field("REQUIRED", "local_number", "STRING")
rank = _Field("REQUIRED", "rank", "INTEGER")
phone = _Field(
"NULLABLE", "phone", "RECORD", fields=[area_code, local_number, rank]
)
person = _Field("REQUIRED", "person", "RECORD", fields=[full_name, phone])
value = {
"f": [
{"v": "Phred Phlyntstone"},
{"v": {"f": [{"v": "800"}, {"v": "555-1212"}, {"v": 1}]}},
]
}
expected = {
"full_name": "Phred Phlyntstone",
"phone": {"area_code": "800", "local_number": "555-1212", "rank": 1},
}
coerced = self._call_fut(value, person)
self.assertEqual(coerced, expected)
class Test_field_to_index_mapping(unittest.TestCase):
def _call_fut(self, schema):
from google.cloud.bigquery._helpers import _field_to_index_mapping
return _field_to_index_mapping(schema)
def test_w_empty_schema(self):
self.assertEqual(self._call_fut([]), {})
def test_w_non_empty_schema(self):
schema = [
_Field("REPEATED", "first", "INTEGER"),
_Field("REQUIRED", "second", "INTEGER"),
_Field("REPEATED", "third", "INTEGER"),
]
self.assertEqual(self._call_fut(schema), {"first": 0, "second": 1, "third": 2})
class Test_row_tuple_from_json(unittest.TestCase):
def _call_fut(self, row, schema):
from google.cloud.bigquery._helpers import _row_tuple_from_json
with _field_isinstance_patcher():
return _row_tuple_from_json(row, schema)
def test_w_single_scalar_column(self):
# SELECT 1 AS col
col = _Field("REQUIRED", "col", "INTEGER")
row = {u"f": [{u"v": u"1"}]}
self.assertEqual(self._call_fut(row, schema=[col]), (1,))
def test_w_single_scalar_geography_column(self):
# SELECT 1 AS col
col = _Field("REQUIRED", "geo", "GEOGRAPHY")
row = {u"f": [{u"v": u"POINT(1, 2)"}]}
self.assertEqual(self._call_fut(row, schema=[col]), ("POINT(1, 2)",))
def test_w_single_struct_column(self):
# SELECT (1, 2) AS col
sub_1 = _Field("REQUIRED", "sub_1", "INTEGER")
sub_2 = _Field("REQUIRED", "sub_2", "INTEGER")
col = _Field("REQUIRED", "col", "RECORD", fields=[sub_1, sub_2])
row = {u"f": [{u"v": {u"f": [{u"v": u"1"}, {u"v": u"2"}]}}]}
self.assertEqual(self._call_fut(row, schema=[col]), ({"sub_1": 1, "sub_2": 2},))
def test_w_single_array_column(self):
# SELECT [1, 2, 3] as col
col = _Field("REPEATED", "col", "INTEGER")
row = {u"f": [{u"v": [{u"v": u"1"}, {u"v": u"2"}, {u"v": u"3"}]}]}
self.assertEqual(self._call_fut(row, schema=[col]), ([1, 2, 3],))
def test_w_struct_w_nested_array_column(self):
# SELECT ([1, 2], 3, [4, 5]) as col
first = _Field("REPEATED", "first", "INTEGER")
second = _Field("REQUIRED", "second", "INTEGER")
third = _Field("REPEATED", "third", "INTEGER")
col = _Field("REQUIRED", "col", "RECORD", fields=[first, second, third])
row = {
u"f": [
{
u"v": {
u"f": [
{u"v": [{u"v": u"1"}, {u"v": u"2"}]},
{u"v": u"3"},
{u"v": [{u"v": u"4"}, {u"v": u"5"}]},
]
}
}
]
}
self.assertEqual(
self._call_fut(row, schema=[col]),
({u"first": [1, 2], u"second": 3, u"third": [4, 5]},),
)
def test_w_array_of_struct(self):
# SELECT [(1, 2, 3), (4, 5, 6)] as col
first = _Field("REQUIRED", "first", "INTEGER")
second = _Field("REQUIRED", "second", "INTEGER")
third = _Field("REQUIRED", "third", "INTEGER")
col = _Field("REPEATED", "col", "RECORD", fields=[first, second, third])
row = {
u"f": [
{
u"v": [
{u"v": {u"f": [{u"v": u"1"}, {u"v": u"2"}, {u"v": u"3"}]}},
{u"v": {u"f": [{u"v": u"4"}, {u"v": u"5"}, {u"v": u"6"}]}},
]
}
]
}
self.assertEqual(
self._call_fut(row, schema=[col]),
(
[
{u"first": 1, u"second": 2, u"third": 3},
{u"first": 4, u"second": 5, u"third": 6},
],
),
)
def test_w_array_of_struct_w_array(self):
# SELECT [([1, 2, 3], 4), ([5, 6], 7)]
first = _Field("REPEATED", "first", "INTEGER")
second = _Field("REQUIRED", "second", "INTEGER")
col = _Field("REPEATED", "col", "RECORD", fields=[first, second])
row = {
u"f": [
{
u"v": [
{
u"v": {
u"f": [
{u"v": [{u"v": u"1"}, {u"v": u"2"}, {u"v": u"3"}]},
{u"v": u"4"},
]
}
},
{
u"v": {
u"f": [
{u"v": [{u"v": u"5"}, {u"v": u"6"}]},
{u"v": u"7"},
]
}
},
]
}
]
}
self.assertEqual(
self._call_fut(row, schema=[col]),
([{u"first": [1, 2, 3], u"second": 4}, {u"first": [5, 6], u"second": 7}],),
)
class Test_rows_from_json(unittest.TestCase):
def _call_fut(self, rows, schema):
from google.cloud.bigquery._helpers import _rows_from_json
with _field_isinstance_patcher():
return _rows_from_json(rows, schema)
def test_w_record_subfield(self):
from google.cloud.bigquery.table import Row
full_name = _Field("REQUIRED", "full_name", "STRING")
area_code = _Field("REQUIRED", "area_code", "STRING")
local_number = _Field("REQUIRED", "local_number", "STRING")
rank = _Field("REQUIRED", "rank", "INTEGER")
phone = _Field(
"NULLABLE", "phone", "RECORD", fields=[area_code, local_number, rank]
)
color = _Field("REPEATED", "color", "STRING")
schema = [full_name, phone, color]
rows = [
{
"f": [
{"v": "Phred Phlyntstone"},
{"v": {"f": [{"v": "800"}, {"v": "555-1212"}, {"v": 1}]}},
{"v": [{"v": "orange"}, {"v": "black"}]},
]
},
{
"f": [
{"v": "Bharney Rhubble"},
{"v": {"f": [{"v": "877"}, {"v": "768-5309"}, {"v": 2}]}},
{"v": [{"v": "brown"}]},
]
},
{"f": [{"v": "Wylma Phlyntstone"}, {"v": None}, {"v": []}]},
]
phred_phone = {"area_code": "800", "local_number": "555-1212", "rank": 1}
bharney_phone = {"area_code": "877", "local_number": "768-5309", "rank": 2}
f2i = {"full_name": 0, "phone": 1, "color": 2}
expected = [
Row(("Phred Phlyntstone", phred_phone, ["orange", "black"]), f2i),
Row(("Bharney Rhubble", bharney_phone, ["brown"]), f2i),
Row(("Wylma Phlyntstone", None, []), f2i),
]
coerced = self._call_fut(rows, schema)
self.assertEqual(coerced, expected)
def test_w_int64_float64_bool(self):
from google.cloud.bigquery.table import Row
# "Standard" SQL dialect uses 'INT64', 'FLOAT64', 'BOOL'.
candidate = _Field("REQUIRED", "candidate", "STRING")
votes = _Field("REQUIRED", "votes", "INT64")
percentage = _Field("REQUIRED", "percentage", "FLOAT64")
incumbent = _Field("REQUIRED", "incumbent", "BOOL")
schema = [candidate, votes, percentage, incumbent]
rows = [
{"f": [{"v": "Phred Phlyntstone"}, {"v": 8}, {"v": 0.25}, {"v": "true"}]},
{"f": [{"v": "Bharney Rhubble"}, {"v": 4}, {"v": 0.125}, {"v": "false"}]},
{
"f": [
{"v": "Wylma Phlyntstone"},
{"v": 20},
{"v": 0.625},
{"v": "false"},
]
},
]
f2i = {"candidate": 0, "votes": 1, "percentage": 2, "incumbent": 3}
expected = [
Row(("Phred Phlyntstone", 8, 0.25, True), f2i),
Row(("Bharney Rhubble", 4, 0.125, False), f2i),
Row(("Wylma Phlyntstone", 20, 0.625, False), f2i),
]
coerced = self._call_fut(rows, schema)
self.assertEqual(coerced, expected)
class Test_int_to_json(unittest.TestCase):
def _call_fut(self, value):
from google.cloud.bigquery._helpers import _int_to_json
return _int_to_json(value)
def test_w_int(self):
self.assertEqual(self._call_fut(123), "123")
def test_w_string(self):
self.assertEqual(self._call_fut("123"), "123")
class Test_float_to_json(unittest.TestCase):
def _call_fut(self, value):
from google.cloud.bigquery._helpers import _float_to_json
return _float_to_json(value)
def test_w_float(self):
self.assertEqual(self._call_fut(1.23), 1.23)
class Test_decimal_to_json(unittest.TestCase):
def _call_fut(self, value):
from google.cloud.bigquery._helpers import _decimal_to_json
return _decimal_to_json(value)
def test_w_float(self):
self.assertEqual(self._call_fut(1.23), 1.23)
def test_w_string(self):
self.assertEqual(self._call_fut("1.23"), "1.23")
def test_w_decimal(self):
self.assertEqual(self._call_fut(decimal.Decimal("1.23")), "1.23")
class Test_bool_to_json(unittest.TestCase):
def _call_fut(self, value):
from google.cloud.bigquery._helpers import _bool_to_json
return _bool_to_json(value)
def test_w_true(self):
self.assertEqual(self._call_fut(True), "true")
def test_w_false(self):
self.assertEqual(self._call_fut(False), "false")
def test_w_string(self):
self.assertEqual(self._call_fut("false"), "false")
class Test_bytes_to_json(unittest.TestCase):
def _call_fut(self, value):
from google.cloud.bigquery._helpers import _bytes_to_json
return _bytes_to_json(value)
def test_w_non_bytes(self):
non_bytes = object()
self.assertIs(self._call_fut(non_bytes), non_bytes)
def test_w_bytes(self):
source = b"source"
expected = u"c291cmNl"
converted = self._call_fut(source)
self.assertEqual(converted, expected)
class Test_timestamp_to_json_parameter(unittest.TestCase):
def _call_fut(self, value):
from google.cloud.bigquery._helpers import _timestamp_to_json_parameter
return _timestamp_to_json_parameter(value)
def test_w_float(self):
self.assertEqual(self._call_fut(1.234567), 1.234567)
def test_w_string(self):
ZULU = "2016-12-20 15:58:27.339328+00:00"
self.assertEqual(self._call_fut(ZULU), ZULU)
def test_w_datetime_wo_zone(self):
ZULU = "2016-12-20 15:58:27.339328+00:00"
when = datetime.datetime(2016, 12, 20, 15, 58, 27, 339328)
self.assertEqual(self._call_fut(when), ZULU)
def test_w_datetime_w_non_utc_zone(self):
class _Zone(datetime.tzinfo):
def utcoffset(self, _):
return datetime.timedelta(minutes=-240)
ZULU = "2016-12-20 19:58:27.339328+00:00"
when = datetime.datetime(2016, 12, 20, 15, 58, 27, 339328, tzinfo=_Zone())
self.assertEqual(self._call_fut(when), ZULU)
def test_w_datetime_w_utc_zone(self):
from google.cloud._helpers import UTC
ZULU = "2016-12-20 15:58:27.339328+00:00"
when = datetime.datetime(2016, 12, 20, 15, 58, 27, 339328, tzinfo=UTC)
self.assertEqual(self._call_fut(when), ZULU)
class Test_timestamp_to_json_row(unittest.TestCase):
def _call_fut(self, value):
from google.cloud.bigquery._helpers import _timestamp_to_json_row
return _timestamp_to_json_row(value)
def test_w_float(self):
self.assertEqual(self._call_fut(1.234567), 1.234567)
def test_w_string(self):
ZULU = "2016-12-20 15:58:27.339328+00:00"
self.assertEqual(self._call_fut(ZULU), ZULU)
def test_w_datetime(self):
when = datetime.datetime(2016, 12, 20, 15, 58, 27, 339328)
self.assertEqual(self._call_fut(when), "2016-12-20T15:58:27.339328Z")
def test_w_datetime_w_utc_zone(self):
from google.cloud._helpers import UTC
when = datetime.datetime(2020, 11, 17, 1, 6, 52, 353795, tzinfo=UTC)
self.assertEqual(self._call_fut(when), "2020-11-17T01:06:52.353795Z")
class Test_datetime_to_json(unittest.TestCase):
def _call_fut(self, value):
from google.cloud.bigquery._helpers import _datetime_to_json
return _datetime_to_json(value)
def test_w_string(self):
RFC3339 = "2016-12-03T14:14:51Z"
self.assertEqual(self._call_fut(RFC3339), RFC3339)
def test_w_datetime(self):
from google.cloud._helpers import UTC
when = datetime.datetime(2016, 12, 3, 14, 11, 27, 123456, tzinfo=UTC)
self.assertEqual(self._call_fut(when), "2016-12-03T14:11:27.123456")
class Test_date_to_json(unittest.TestCase):
def _call_fut(self, value):
from google.cloud.bigquery._helpers import _date_to_json
return _date_to_json(value)
def test_w_string(self):
RFC3339 = "2016-12-03"
self.assertEqual(self._call_fut(RFC3339), RFC3339)
def test_w_datetime(self):
when = datetime.date(2016, 12, 3)
self.assertEqual(self._call_fut(when), "2016-12-03")
class Test_time_to_json(unittest.TestCase):
def _call_fut(self, value):
from google.cloud.bigquery._helpers import _time_to_json
return _time_to_json(value)
def test_w_string(self):
RFC3339 = "12:13:41"
self.assertEqual(self._call_fut(RFC3339), RFC3339)
def test_w_datetime(self):
when = datetime.time(12, 13, 41)
self.assertEqual(self._call_fut(when), "12:13:41")
def _make_field(field_type, mode="NULLABLE", name="testing", fields=()):
from google.cloud.bigquery.schema import SchemaField
return SchemaField(name=name, field_type=field_type, mode=mode, fields=fields)
class Test_scalar_field_to_json(unittest.TestCase):
def _call_fut(self, field, value):
from google.cloud.bigquery._helpers import _scalar_field_to_json
return _scalar_field_to_json(field, value)
def test_w_unknown_field_type(self):
field = _make_field("UNKNOWN")
original = object()
converted = self._call_fut(field, original)
self.assertIs(converted, original)
def test_w_known_field_type(self):
field = _make_field("INT64")
original = 42
converted = self._call_fut(field, original)
self.assertEqual(converted, str(original))
class Test_single_field_to_json(unittest.TestCase):
def _call_fut(self, field, value):
from google.cloud.bigquery._helpers import _single_field_to_json
return _single_field_to_json(field, value)
def test_w_none(self):
field = _make_field("INT64")
original = None
converted = self._call_fut(field, original)
self.assertIsNone(converted)
def test_w_record(self):
subfields = [
_make_field("INT64", name="one"),
_make_field("STRING", name="two"),
]
field = _make_field("RECORD", fields=subfields)
original = {"one": 42, "two": "two"}
converted = self._call_fut(field, original)
self.assertEqual(converted, {"one": "42", "two": "two"})
def test_w_scalar(self):
field = _make_field("INT64")
original = 42
converted = self._call_fut(field, original)
self.assertEqual(converted, str(original))
def test_w_scalar_ignores_mode(self):
field = _make_field("STRING", mode="REPEATED")
original = "hello world"
converted = self._call_fut(field, original)
self.assertEqual(converted, original)
class Test_repeated_field_to_json(unittest.TestCase):
def _call_fut(self, field, value):
from google.cloud.bigquery._helpers import _repeated_field_to_json
return _repeated_field_to_json(field, value)
def test_w_empty(self):
field = _make_field("INT64", mode="REPEATED")
original = []
converted = self._call_fut(field, original)
self.assertEqual(converted, original)
self.assertEqual(field.mode, "REPEATED")
def test_w_non_empty(self):
field = _make_field("INT64", mode="REPEATED")
original = [42]
converted = self._call_fut(field, original)
self.assertEqual(converted, [str(value) for value in original])
self.assertEqual(field.mode, "REPEATED")
class Test_record_field_to_json(unittest.TestCase):
def _call_fut(self, field, value):
from google.cloud.bigquery._helpers import _record_field_to_json
return _record_field_to_json(field, value)
def test_w_empty(self):
fields = []
original = []
converted = self._call_fut(fields, original)
self.assertEqual(converted, {})
def test_w_non_empty_list(self):
fields = [
_make_field("INT64", name="one", mode="NULLABLE"),
_make_field("STRING", name="two", mode="NULLABLE"),
]
original = [42, "two"]
converted = self._call_fut(fields, original)
self.assertEqual(converted, {"one": "42", "two": "two"})
def test_w_list_missing_fields(self):
fields = [
_make_field("INT64", name="one", mode="NULLABLE"),
_make_field("STRING", name="two", mode="NULLABLE"),
]
original = [42]
with self.assertRaisesRegex(ValueError, r".*not match schema length.*"):
self._call_fut(fields, original)
def test_w_list_too_many_fields(self):
fields = [
_make_field("INT64", name="one", mode="NULLABLE"),
_make_field("STRING", name="two", mode="NULLABLE"),
]
original = [42, "two", "three"]
with self.assertRaisesRegex(ValueError, r".*not match schema length.*"):
self._call_fut(fields, original)
def test_w_non_empty_dict(self):
fields = [
_make_field("INT64", name="one", mode="NULLABLE"),
_make_field("STRING", name="two", mode="NULLABLE"),
]
original = {"one": 42, "two": "two"}
converted = self._call_fut(fields, original)
self.assertEqual(converted, {"one": "42", "two": "two"})
def test_w_some_missing_nullables(self):
fields = [
_make_field("INT64", name="one", mode="NULLABLE"),
_make_field("STRING", name="two", mode="NULLABLE"),
]
original = {"one": 42}
converted = self._call_fut(fields, original)
# missing fields should not be converted to an explicit None
self.assertEqual(converted, {"one": "42"})
def test_w_all_missing_nullables(self):
fields = [
_make_field("INT64", name="one", mode="NULLABLE"),
_make_field("STRING", name="two", mode="NULLABLE"),
]
original = {}
converted = self._call_fut(fields, original)
# we should get an empty dict, not None
self.assertEqual(converted, {})
def test_w_explicit_none_value(self):
fields = [
_make_field("INT64", name="one", mode="NULLABLE"),
_make_field("STRING", name="two", mode="NULLABLE"),
_make_field("BOOL", name="three", mode="REPEATED"),
]
original = {"three": None, "one": 42, "two": None}
converted = self._call_fut(fields, original)
# None values should be dropped regardless of the field type
self.assertEqual(converted, {"one": "42"})
def test_w_dict_unknown_fields(self):
fields = [
_make_field("INT64", name="one", mode="NULLABLE"),
_make_field("STRING", name="two", mode="NULLABLE"),
]
original = {
"whoami": datetime.date(2020, 7, 20),
"one": 111,
"two": "222",
"void": None,
}
converted = self._call_fut(fields, original)
# Unknown fields should be included (if not None), but converted as strings.
self.assertEqual(
converted, {"whoami": "2020-07-20", "one": "111", "two": "222"},
)
class Test_field_to_json(unittest.TestCase):
def _call_fut(self, field, value):
from google.cloud.bigquery._helpers import _field_to_json
return _field_to_json(field, value)
def test_w_none(self):
field = _make_field("INT64")
original = None
converted = self._call_fut(field, original)
self.assertIsNone(converted)
def test_w_repeated(self):
field = _make_field("INT64", mode="REPEATED")
original = [42, 17]
converted = self._call_fut(field, original)
self.assertEqual(converted, [str(value) for value in original])
def test_w_record(self):
subfields = [
_make_field("INT64", name="one"),
_make_field("STRING", name="two"),
]
field = _make_field("RECORD", fields=subfields)
original = {"one": 42, "two": "two"}
converted = self._call_fut(field, original)
self.assertEqual(converted, {"one": "42", "two": "two"})
def test_w_scalar(self):