mirror of
https://github.com/sqlalchemy/sqlalchemy.git
synced 2026-05-14 04:37:15 -04:00
Mike Bayer
4a66683c9f
match the output of str(somedatetime), i.e. in that the microseconds are represented as fractional seconds in string format. [ticket:1090] - implemented a __legacy_microseconds__ flag on DateTimeMixin which can be used per-class or per-type instances to get the old behavior, for compatibility with existing SQLite databases encoded by a previous version of SQLAlchemy. - will implement the reverse legacy behavior in 0.4.
318 lines
12 KiB
Python
318 lines
12 KiB
Python
"""SQLite-specific tests."""
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import testenv; testenv.configure_for_tests()
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import datetime
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from sqlalchemy import *
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from sqlalchemy import exc
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from sqlalchemy.databases import sqlite
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from testlib import *
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class TestTypes(TestBase, AssertsExecutionResults):
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__only_on__ = 'sqlite'
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def test_date(self):
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meta = MetaData(testing.db)
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t = Table('testdate', meta,
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Column('id', Integer, primary_key=True),
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Column('adate', Date),
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Column('adatetime', DateTime))
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meta.create_all()
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try:
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d1 = datetime.date(2007, 10, 30)
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d2 = datetime.datetime(2007, 10, 30)
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t.insert().execute(adate=str(d1), adatetime=str(d2))
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self.assert_(t.select().execute().fetchall()[0] ==
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(1, datetime.date(2007, 10, 30),
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datetime.datetime(2007, 10, 30)))
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finally:
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meta.drop_all()
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def test_time_microseconds(self):
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dt = datetime.datetime(2008, 6, 27, 12, 0, 0, 125) # 125 usec
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self.assertEquals(str(dt), '2008-06-27 12:00:00.000125')
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sldt = sqlite.SLDateTime()
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bp = sldt.bind_processor(None)
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self.assertEquals(bp(dt), '2008-06-27 12:00:00.000125')
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rp = sldt.result_processor(None)
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self.assertEquals(rp(bp(dt)), dt)
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sldt.__legacy_microseconds__ = True
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self.assertEquals(bp(dt), '2008-06-27 12:00:00.125')
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self.assertEquals(rp(bp(dt)), dt)
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@testing.uses_deprecated('Using String type with no length')
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def test_type_reflection(self):
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# (ask_for, roundtripped_as_if_different)
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specs = [( String(), sqlite.SLString(), ),
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( String(1), sqlite.SLString(1), ),
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( String(3), sqlite.SLString(3), ),
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( Text(), sqlite.SLText(), ),
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( Unicode(), sqlite.SLString(), ),
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( Unicode(1), sqlite.SLString(1), ),
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( Unicode(3), sqlite.SLString(3), ),
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( UnicodeText(), sqlite.SLText(), ),
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( CLOB, sqlite.SLText(), ),
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( sqlite.SLChar(1), ),
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( CHAR(3), sqlite.SLChar(3), ),
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( NCHAR(2), sqlite.SLChar(2), ),
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( SmallInteger(), sqlite.SLSmallInteger(), ),
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( sqlite.SLSmallInteger(), ),
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( Binary(3), sqlite.SLBinary(), ),
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( Binary(), sqlite.SLBinary() ),
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( sqlite.SLBinary(3), sqlite.SLBinary(), ),
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( NUMERIC, sqlite.SLNumeric(), ),
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( NUMERIC(10,2), sqlite.SLNumeric(10,2), ),
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( Numeric, sqlite.SLNumeric(), ),
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( Numeric(10, 2), sqlite.SLNumeric(10, 2), ),
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( DECIMAL, sqlite.SLNumeric(), ),
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( DECIMAL(10, 2), sqlite.SLNumeric(10, 2), ),
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( Float, sqlite.SLNumeric(), ),
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( sqlite.SLNumeric(), ),
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( INT, sqlite.SLInteger(), ),
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( Integer, sqlite.SLInteger(), ),
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( sqlite.SLInteger(), ),
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( TIMESTAMP, sqlite.SLDateTime(), ),
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( DATETIME, sqlite.SLDateTime(), ),
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( DateTime, sqlite.SLDateTime(), ),
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( sqlite.SLDateTime(), ),
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( DATE, sqlite.SLDate(), ),
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( Date, sqlite.SLDate(), ),
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( sqlite.SLDate(), ),
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( TIME, sqlite.SLTime(), ),
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( Time, sqlite.SLTime(), ),
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( sqlite.SLTime(), ),
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( BOOLEAN, sqlite.SLBoolean(), ),
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( Boolean, sqlite.SLBoolean(), ),
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( sqlite.SLBoolean(), ),
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]
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columns = [Column('c%i' % (i + 1), t[0]) for i, t in enumerate(specs)]
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db = testing.db
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m = MetaData(db)
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t_table = Table('types', m, *columns)
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try:
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m.create_all()
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m2 = MetaData(db)
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rt = Table('types', m2, autoload=True)
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try:
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db.execute('CREATE VIEW types_v AS SELECT * from types')
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rv = Table('types_v', m2, autoload=True)
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expected = [len(c) > 1 and c[1] or c[0] for c in specs]
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for table in rt, rv:
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for i, reflected in enumerate(table.c):
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print reflected.type, type(expected[i])
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assert isinstance(reflected.type, type(expected[i])), type(expected[i])
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finally:
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db.execute('DROP VIEW types_v')
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finally:
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m.drop_all()
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class DialectTest(TestBase, AssertsExecutionResults):
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__only_on__ = 'sqlite'
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def test_extra_reserved_words(self):
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"""Tests reserved words in identifiers.
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'true', 'false', and 'column' are undocumented reserved words
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when used as column identifiers (as of 3.5.1). Covering them here
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to ensure they remain in place if the dialect's reserved_words set
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is updated in the future.
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"""
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meta = MetaData(testing.db)
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t = Table('reserved', meta,
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Column('safe', Integer),
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Column('true', Integer),
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Column('false', Integer),
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Column('column', Integer))
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try:
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meta.create_all()
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t.insert().execute(safe=1)
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list(t.select().execute())
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finally:
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meta.drop_all()
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def test_quoted_identifiers(self):
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"""Tests autoload of tables created with quoted column names."""
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# This is quirky in sqlite.
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testing.db.execute("""CREATE TABLE "django_content_type" (
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"id" integer NOT NULL PRIMARY KEY,
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"django_stuff" text NULL
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)
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""")
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testing.db.execute("""
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CREATE TABLE "django_admin_log" (
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"id" integer NOT NULL PRIMARY KEY,
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"action_time" datetime NOT NULL,
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"content_type_id" integer NULL REFERENCES "django_content_type" ("id"),
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"object_id" text NULL,
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"change_message" text NOT NULL
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)
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""")
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try:
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meta = MetaData(testing.db)
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table1 = Table("django_admin_log", meta, autoload=True)
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table2 = Table("django_content_type", meta, autoload=True)
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j = table1.join(table2)
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assert j.onclause == table1.c.content_type_id==table2.c.id
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finally:
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testing.db.execute("drop table django_admin_log")
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testing.db.execute("drop table django_content_type")
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def test_attached_as_schema(self):
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cx = testing.db.connect()
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try:
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cx.execute('ATTACH DATABASE ":memory:" AS alt_schema')
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dialect = cx.dialect
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assert dialect.table_names(cx, 'alt_schema') == []
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meta = MetaData(cx)
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Table('created', meta, Column('id', Integer),
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schema='alt_schema')
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alt_master = Table('sqlite_master', meta, autoload=True,
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schema='alt_schema')
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meta.create_all(cx)
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self.assertEquals(dialect.table_names(cx, 'alt_schema'),
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['created'])
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assert len(alt_master.c) > 0
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meta.clear()
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reflected = Table('created', meta, autoload=True,
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schema='alt_schema')
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assert len(reflected.c) == 1
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cx.execute(reflected.insert(), dict(id=1))
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r = cx.execute(reflected.select()).fetchall()
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assert list(r) == [(1,)]
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cx.execute(reflected.update(), dict(id=2))
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r = cx.execute(reflected.select()).fetchall()
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assert list(r) == [(2,)]
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cx.execute(reflected.delete(reflected.c.id==2))
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r = cx.execute(reflected.select()).fetchall()
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assert list(r) == []
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# note that sqlite_master is cleared, above
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meta.drop_all()
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assert dialect.table_names(cx, 'alt_schema') == []
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finally:
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cx.execute('DETACH DATABASE alt_schema')
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@testing.exclude('sqlite', '<', (2, 6), 'no database support')
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def test_temp_table_reflection(self):
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cx = testing.db.connect()
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try:
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cx.execute('CREATE TEMPORARY TABLE tempy (id INT)')
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assert 'tempy' in cx.dialect.table_names(cx, None)
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meta = MetaData(cx)
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tempy = Table('tempy', meta, autoload=True)
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assert len(tempy.c) == 1
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meta.drop_all()
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except:
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try:
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cx.execute('DROP TABLE tempy')
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except exc.DBAPIError:
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pass
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raise
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class InsertTest(TestBase, AssertsExecutionResults):
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"""Tests inserts and autoincrement."""
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__only_on__ = 'sqlite'
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# empty insert (i.e. INSERT INTO table DEFAULT VALUES)
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# fails as recently as sqlite 3.3.6. passes on 3.4.1. this syntax
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# is nowhere to be found in the sqlite3 documentation or changelog, so can't
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# determine what versions in between it's legal for.
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def _test_empty_insert(self, table, expect=1):
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try:
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table.create()
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for wanted in (expect, expect * 2):
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table.insert().execute()
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rows = table.select().execute().fetchall()
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print rows
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self.assertEquals(len(rows), wanted)
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finally:
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table.drop()
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@testing.exclude('sqlite', '<', (3, 4), 'no database support')
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def test_empty_insert_pk1(self):
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self._test_empty_insert(
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Table('a', MetaData(testing.db),
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Column('id', Integer, primary_key=True)))
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@testing.exclude('sqlite', '<', (3, 4), 'no database support')
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def test_empty_insert_pk2(self):
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self.assertRaises(
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exc.DBAPIError,
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self._test_empty_insert,
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Table('b', MetaData(testing.db),
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Column('x', Integer, primary_key=True),
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Column('y', Integer, primary_key=True)))
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@testing.exclude('sqlite', '<', (3, 4), 'no database support')
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def test_empty_insert_pk3(self):
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self.assertRaises(
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exc.DBAPIError,
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self._test_empty_insert,
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Table('c', MetaData(testing.db),
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Column('x', Integer, primary_key=True),
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Column('y', Integer, DefaultClause('123'),
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primary_key=True)))
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@testing.exclude('sqlite', '<', (3, 4), 'no database support')
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def test_empty_insert_pk4(self):
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self._test_empty_insert(
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Table('d', MetaData(testing.db),
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Column('x', Integer, primary_key=True),
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Column('y', Integer, DefaultClause('123'))))
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@testing.exclude('sqlite', '<', (3, 4), 'no database support')
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def test_empty_insert_nopk1(self):
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self._test_empty_insert(
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Table('e', MetaData(testing.db),
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Column('id', Integer)))
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@testing.exclude('sqlite', '<', (3, 4), 'no database support')
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def test_empty_insert_nopk2(self):
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self._test_empty_insert(
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Table('f', MetaData(testing.db),
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Column('x', Integer),
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Column('y', Integer)))
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def test_inserts_with_spaces(self):
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tbl = Table('tbl', MetaData('sqlite:///'),
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Column('with space', Integer),
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Column('without', Integer))
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tbl.create()
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try:
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tbl.insert().execute({'without':123})
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assert list(tbl.select().execute()) == [(None, 123)]
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tbl.insert().execute({'with space':456})
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assert list(tbl.select().execute()) == [(None, 123), (456, None)]
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finally:
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tbl.drop()
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if __name__ == "__main__":
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testenv.main()
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