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# coding: utf-8
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from .. import fixtures, config
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from ..assertions import eq_
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from ..config import requirements
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from sqlalchemy import Integer, Unicode, UnicodeText, select
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from sqlalchemy import Date, DateTime, Time, MetaData, String, \
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Text, Numeric, Float
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from ..schema import Table, Column
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from ... import testing
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import decimal
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import datetime
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class _UnicodeFixture(object):
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__requires__ = 'unicode_data',
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data = u"Alors vous imaginez ma surprise, au lever du jour, "\
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u"quand une drôle de petite voix m’a réveillé. Elle "\
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u"disait: « S’il vous plaît… dessine-moi un mouton! »"
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@classmethod
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def define_tables(cls, metadata):
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Table('unicode_table', metadata,
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Column('id', Integer, primary_key=True,
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test_needs_autoincrement=True),
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Column('unicode_data', cls.datatype),
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)
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def test_round_trip(self):
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unicode_table = self.tables.unicode_table
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config.db.execute(
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unicode_table.insert(),
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{
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'unicode_data': self.data,
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}
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)
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row = config.db.execute(
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select([
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unicode_table.c.unicode_data,
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])
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).first()
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eq_(
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row,
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(self.data, )
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)
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assert isinstance(row[0], unicode)
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def test_round_trip_executemany(self):
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unicode_table = self.tables.unicode_table
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config.db.execute(
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unicode_table.insert(),
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[
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{
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'unicode_data': self.data,
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}
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for i in xrange(3)
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]
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)
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rows = config.db.execute(
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select([
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unicode_table.c.unicode_data,
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])
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).fetchall()
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eq_(
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rows,
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[(self.data, ) for i in xrange(3)]
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)
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for row in rows:
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assert isinstance(row[0], unicode)
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def _test_empty_strings(self):
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unicode_table = self.tables.unicode_table
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config.db.execute(
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unicode_table.insert(),
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{"unicode_data": u''}
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)
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row = config.db.execute(
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select([unicode_table.c.unicode_data])
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).first()
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eq_(row, (u'',))
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class UnicodeVarcharTest(_UnicodeFixture, fixtures.TablesTest):
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__requires__ = 'unicode_data',
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datatype = Unicode(255)
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@requirements.empty_strings_varchar
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def test_empty_strings_varchar(self):
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self._test_empty_strings()
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class UnicodeTextTest(_UnicodeFixture, fixtures.TablesTest):
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__requires__ = 'unicode_data', 'text_type'
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datatype = UnicodeText()
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@requirements.empty_strings_text
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def test_empty_strings_text(self):
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self._test_empty_strings()
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class TextTest(fixtures.TablesTest):
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@classmethod
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def define_tables(cls, metadata):
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Table('text_table', metadata,
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Column('id', Integer, primary_key=True,
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test_needs_autoincrement=True),
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Column('text_data', Text),
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)
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def test_text_roundtrip(self):
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text_table = self.tables.text_table
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config.db.execute(
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text_table.insert(),
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{"text_data": 'some text'}
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)
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row = config.db.execute(
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select([text_table.c.text_data])
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).first()
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eq_(row, ('some text',))
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def test_text_empty_strings(self):
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text_table = self.tables.text_table
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config.db.execute(
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text_table.insert(),
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{"text_data": ''}
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)
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row = config.db.execute(
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select([text_table.c.text_data])
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).first()
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eq_(row, ('',))
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class StringTest(fixtures.TestBase):
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@requirements.unbounded_varchar
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def test_nolength_string(self):
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metadata = MetaData()
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foo = Table('foo', metadata,
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Column('one', String)
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)
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foo.create(config.db)
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foo.drop(config.db)
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class _DateFixture(object):
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compare = None
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@classmethod
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def define_tables(cls, metadata):
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Table('date_table', metadata,
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Column('id', Integer, primary_key=True,
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test_needs_autoincrement=True),
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Column('date_data', cls.datatype),
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)
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def test_round_trip(self):
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date_table = self.tables.date_table
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config.db.execute(
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date_table.insert(),
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{'date_data': self.data}
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)
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row = config.db.execute(
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select([
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date_table.c.date_data,
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])
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).first()
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compare = self.compare or self.data
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eq_(row,
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(compare, ))
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assert isinstance(row[0], type(compare))
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def test_null(self):
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date_table = self.tables.date_table
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config.db.execute(
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date_table.insert(),
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{'date_data': None}
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)
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row = config.db.execute(
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select([
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date_table.c.date_data,
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])
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).first()
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eq_(row, (None,))
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class DateTimeTest(_DateFixture, fixtures.TablesTest):
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__requires__ = 'datetime',
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datatype = DateTime
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data = datetime.datetime(2012, 10, 15, 12, 57, 18)
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class DateTimeMicrosecondsTest(_DateFixture, fixtures.TablesTest):
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__requires__ = 'datetime_microseconds',
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datatype = DateTime
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data = datetime.datetime(2012, 10, 15, 12, 57, 18, 396)
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class TimeTest(_DateFixture, fixtures.TablesTest):
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__requires__ = 'time',
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datatype = Time
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data = datetime.time(12, 57, 18)
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class TimeMicrosecondsTest(_DateFixture, fixtures.TablesTest):
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__requires__ = 'time_microseconds',
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datatype = Time
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data = datetime.time(12, 57, 18, 396)
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class DateTest(_DateFixture, fixtures.TablesTest):
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__requires__ = 'date',
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datatype = Date
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data = datetime.date(2012, 10, 15)
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class DateTimeCoercedToDateTimeTest(_DateFixture, fixtures.TablesTest):
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__requires__ = 'date',
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datatype = Date
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data = datetime.datetime(2012, 10, 15, 12, 57, 18)
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compare = datetime.date(2012, 10, 15)
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class DateTimeHistoricTest(_DateFixture, fixtures.TablesTest):
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__requires__ = 'datetime_historic',
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datatype = DateTime
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data = datetime.datetime(1850, 11, 10, 11, 52, 35)
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class DateHistoricTest(_DateFixture, fixtures.TablesTest):
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__requires__ = 'date_historic',
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datatype = Date
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data = datetime.date(1727, 4, 1)
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class NumericTest(fixtures.TestBase):
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@testing.emits_warning(r".*does \*not\* support Decimal objects natively")
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@testing.provide_metadata
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def _do_test(self, type_, input_, output, filter_=None, check_scale=False):
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metadata = self.metadata
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t = Table('t', metadata, Column('x', type_))
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t.create()
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t.insert().execute([{'x':x} for x in input_])
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result = set([row[0] for row in t.select().execute()])
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output = set(output)
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if filter_:
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result = set(filter_(x) for x in result)
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output = set(filter_(x) for x in output)
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eq_(result, output)
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if check_scale:
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eq_(
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[str(x) for x in result],
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[str(x) for x in output],
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)
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def test_numeric_as_decimal(self):
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self._do_test(
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Numeric(precision=8, scale=4),
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[15.7563, decimal.Decimal("15.7563"), None],
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[decimal.Decimal("15.7563"), None],
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)
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def test_numeric_as_float(self):
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self._do_test(
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Numeric(precision=8, scale=4, asdecimal=False),
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[15.7563, decimal.Decimal("15.7563"), None],
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[15.7563, None],
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)
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def test_float_as_decimal(self):
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self._do_test(
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Float(precision=8, asdecimal=True),
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[15.7563, decimal.Decimal("15.7563"), None],
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[decimal.Decimal("15.7563"), None],
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)
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def test_float_as_float(self):
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self._do_test(
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Float(precision=8),
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[15.7563, decimal.Decimal("15.7563")],
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[15.7563],
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filter_=lambda n: n is not None and round(n, 5) or None
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)
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@testing.requires.precision_numerics_general
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def test_precision_decimal(self):
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numbers = set([
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decimal.Decimal("54.234246451650"),
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decimal.Decimal("0.004354"),
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decimal.Decimal("900.0"),
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])
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self._do_test(
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Numeric(precision=18, scale=12),
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numbers,
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numbers,
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)
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@testing.requires.precision_numerics_enotation_large
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def test_enotation_decimal(self):
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"""test exceedingly small decimals.
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Decimal reports values with E notation when the exponent
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is greater than 6.
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"""
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numbers = set([
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decimal.Decimal('1E-2'),
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decimal.Decimal('1E-3'),
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decimal.Decimal('1E-4'),
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decimal.Decimal('1E-5'),
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decimal.Decimal('1E-6'),
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decimal.Decimal('1E-7'),
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decimal.Decimal('1E-8'),
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decimal.Decimal("0.01000005940696"),
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decimal.Decimal("0.00000005940696"),
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decimal.Decimal("0.00000000000696"),
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decimal.Decimal("0.70000000000696"),
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decimal.Decimal("696E-12"),
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])
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self._do_test(
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Numeric(precision=18, scale=14),
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numbers,
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numbers
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)
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@testing.requires.precision_numerics_enotation_large
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def test_enotation_decimal_large(self):
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"""test exceedingly large decimals.
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"""
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numbers = set([
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decimal.Decimal('4E+8'),
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decimal.Decimal("5748E+15"),
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decimal.Decimal('1.521E+15'),
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decimal.Decimal('00000000000000.1E+12'),
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])
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self._do_test(
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Numeric(precision=25, scale=2),
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numbers,
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numbers
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)
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@testing.requires.precision_numerics_many_significant_digits
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def test_many_significant_digits(self):
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numbers = set([
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decimal.Decimal("31943874831932418390.01"),
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decimal.Decimal("319438950232418390.273596"),
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decimal.Decimal("87673.594069654243"),
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])
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self._do_test(
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Numeric(precision=38, scale=12),
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numbers,
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numbers
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)
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@testing.requires.precision_numerics_retains_significant_digits
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def test_numeric_no_decimal(self):
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numbers = set([
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decimal.Decimal("1.000")
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])
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self._do_test(
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Numeric(precision=5, scale=3),
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numbers,
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numbers,
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check_scale=True
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)
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__all__ = ('UnicodeVarcharTest', 'UnicodeTextTest',
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'DateTest', 'DateTimeTest', 'TextTest',
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'NumericTest',
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'DateTimeHistoricTest', 'DateTimeCoercedToDateTimeTest',
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'TimeMicrosecondsTest', 'TimeTest', 'DateTimeMicrosecondsTest',
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'DateHistoricTest', 'StringTest')
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