# coding: utf-8

from sqlalchemy.testing import eq_, assert_raises, assert_raises_message, is_
from sqlalchemy import *
from sqlalchemy import sql, exc, schema
from sqlalchemy.util import u
from sqlalchemy import util
from sqlalchemy.dialects.mysql import base as mysql
from sqlalchemy.testing import fixtures, AssertsCompiledSQL, AssertsExecutionResults
from sqlalchemy import testing
import datetime
import decimal
from sqlalchemy import types as sqltypes


class TypesTest(fixtures.TestBase, AssertsExecutionResults, AssertsCompiledSQL):
    "Test MySQL column types"

    __dialect__ = mysql.dialect()
    __only_on__ = 'mysql'
    __backend__ = True

    def test_numeric(self):
        "Exercise type specification and options for numeric types."

        columns = [
            # column type, args, kwargs, expected ddl
            # e.g. Column(Integer(10, unsigned=True)) ==
            # 'INTEGER(10) UNSIGNED'
            (mysql.MSNumeric, [], {},
             'NUMERIC'),
            (mysql.MSNumeric, [None], {},
             'NUMERIC'),
            (mysql.MSNumeric, [12], {},
             'NUMERIC(12)'),
            (mysql.MSNumeric, [12, 4], {'unsigned':True},
             'NUMERIC(12, 4) UNSIGNED'),
            (mysql.MSNumeric, [12, 4], {'zerofill':True},
             'NUMERIC(12, 4) ZEROFILL'),
            (mysql.MSNumeric, [12, 4], {'zerofill':True, 'unsigned':True},
             'NUMERIC(12, 4) UNSIGNED ZEROFILL'),

            (mysql.MSDecimal, [], {},
             'DECIMAL'),
            (mysql.MSDecimal, [None], {},
             'DECIMAL'),
            (mysql.MSDecimal, [12], {},
             'DECIMAL(12)'),
            (mysql.MSDecimal, [12, None], {},
             'DECIMAL(12)'),
            (mysql.MSDecimal, [12, 4], {'unsigned':True},
             'DECIMAL(12, 4) UNSIGNED'),
            (mysql.MSDecimal, [12, 4], {'zerofill':True},
             'DECIMAL(12, 4) ZEROFILL'),
            (mysql.MSDecimal, [12, 4], {'zerofill':True, 'unsigned':True},
             'DECIMAL(12, 4) UNSIGNED ZEROFILL'),

            (mysql.MSDouble, [None, None], {},
             'DOUBLE'),
            (mysql.MSDouble, [12, 4], {'unsigned':True},
             'DOUBLE(12, 4) UNSIGNED'),
            (mysql.MSDouble, [12, 4], {'zerofill':True},
             'DOUBLE(12, 4) ZEROFILL'),
            (mysql.MSDouble, [12, 4], {'zerofill':True, 'unsigned':True},
             'DOUBLE(12, 4) UNSIGNED ZEROFILL'),

            (mysql.MSReal, [None, None], {},
             'REAL'),
            (mysql.MSReal, [12, 4], {'unsigned':True},
             'REAL(12, 4) UNSIGNED'),
            (mysql.MSReal, [12, 4], {'zerofill':True},
             'REAL(12, 4) ZEROFILL'),
            (mysql.MSReal, [12, 4], {'zerofill':True, 'unsigned':True},
             'REAL(12, 4) UNSIGNED ZEROFILL'),

            (mysql.MSFloat, [], {},
             'FLOAT'),
            (mysql.MSFloat, [None], {},
             'FLOAT'),
            (mysql.MSFloat, [12], {},
             'FLOAT(12)'),
            (mysql.MSFloat, [12, 4], {},
             'FLOAT(12, 4)'),
            (mysql.MSFloat, [12, 4], {'unsigned':True},
             'FLOAT(12, 4) UNSIGNED'),
            (mysql.MSFloat, [12, 4], {'zerofill':True},
             'FLOAT(12, 4) ZEROFILL'),
            (mysql.MSFloat, [12, 4], {'zerofill':True, 'unsigned':True},
             'FLOAT(12, 4) UNSIGNED ZEROFILL'),

            (mysql.MSInteger, [], {},
             'INTEGER'),
            (mysql.MSInteger, [4], {},
             'INTEGER(4)'),
            (mysql.MSInteger, [4], {'unsigned':True},
             'INTEGER(4) UNSIGNED'),
            (mysql.MSInteger, [4], {'zerofill':True},
             'INTEGER(4) ZEROFILL'),
            (mysql.MSInteger, [4], {'zerofill':True, 'unsigned':True},
             'INTEGER(4) UNSIGNED ZEROFILL'),

            (mysql.MSBigInteger, [], {},
             'BIGINT'),
            (mysql.MSBigInteger, [4], {},
             'BIGINT(4)'),
            (mysql.MSBigInteger, [4], {'unsigned':True},
             'BIGINT(4) UNSIGNED'),
            (mysql.MSBigInteger, [4], {'zerofill':True},
             'BIGINT(4) ZEROFILL'),
            (mysql.MSBigInteger, [4], {'zerofill':True, 'unsigned':True},
             'BIGINT(4) UNSIGNED ZEROFILL'),

             (mysql.MSMediumInteger, [], {},
              'MEDIUMINT'),
             (mysql.MSMediumInteger, [4], {},
              'MEDIUMINT(4)'),
             (mysql.MSMediumInteger, [4], {'unsigned':True},
              'MEDIUMINT(4) UNSIGNED'),
             (mysql.MSMediumInteger, [4], {'zerofill':True},
              'MEDIUMINT(4) ZEROFILL'),
             (mysql.MSMediumInteger, [4], {'zerofill':True, 'unsigned':True},
              'MEDIUMINT(4) UNSIGNED ZEROFILL'),

            (mysql.MSTinyInteger, [], {},
             'TINYINT'),
            (mysql.MSTinyInteger, [1], {},
             'TINYINT(1)'),
            (mysql.MSTinyInteger, [1], {'unsigned':True},
             'TINYINT(1) UNSIGNED'),
            (mysql.MSTinyInteger, [1], {'zerofill':True},
             'TINYINT(1) ZEROFILL'),
            (mysql.MSTinyInteger, [1], {'zerofill':True, 'unsigned':True},
             'TINYINT(1) UNSIGNED ZEROFILL'),

            (mysql.MSSmallInteger, [], {},
             'SMALLINT'),
            (mysql.MSSmallInteger, [4], {},
             'SMALLINT(4)'),
            (mysql.MSSmallInteger, [4], {'unsigned':True},
             'SMALLINT(4) UNSIGNED'),
            (mysql.MSSmallInteger, [4], {'zerofill':True},
             'SMALLINT(4) ZEROFILL'),
            (mysql.MSSmallInteger, [4], {'zerofill':True, 'unsigned':True},
             'SMALLINT(4) UNSIGNED ZEROFILL'),
           ]

        for type_, args, kw, res in columns:
            type_inst = type_(*args, **kw)
            self.assert_compile(
                type_inst,
                res
            )
            # test that repr() copies out all arguments
            self.assert_compile(
                eval("mysql.%r" % type_inst),
                res
            )

    # fixed in mysql-connector as of 2.0.1,
    # see http://bugs.mysql.com/bug.php?id=73266
    @testing.provide_metadata
    def test_precision_float_roundtrip(self):
        t = Table('t', self.metadata,
                    Column('scale_value', mysql.DOUBLE(
                            precision=15, scale=12, asdecimal=True)),
                    Column('unscale_value', mysql.DOUBLE(
                            decimal_return_scale=12, asdecimal=True))
            )
        t.create(testing.db)
        testing.db.execute(
            t.insert(), scale_value=45.768392065789,
            unscale_value=45.768392065789
        )
        result = testing.db.scalar(select([t.c.scale_value]))
        eq_(result, decimal.Decimal("45.768392065789"))

        result = testing.db.scalar(select([t.c.unscale_value]))
        eq_(result, decimal.Decimal("45.768392065789"))

    @testing.exclude('mysql', '<', (4, 1, 1), 'no charset support')
    def test_charset(self):
        """Exercise CHARACTER SET and COLLATE-ish options on string types."""

        columns = [
            (mysql.MSChar, [1], {},
             'CHAR(1)'),
             (mysql.NCHAR, [1], {},
              'NATIONAL CHAR(1)'),
            (mysql.MSChar, [1], {'binary':True},
             'CHAR(1) BINARY'),
            (mysql.MSChar, [1], {'ascii':True},
             'CHAR(1) ASCII'),
            (mysql.MSChar, [1], {'unicode':True},
             'CHAR(1) UNICODE'),
            (mysql.MSChar, [1], {'ascii':True, 'binary':True},
             'CHAR(1) ASCII BINARY'),
            (mysql.MSChar, [1], {'unicode':True, 'binary':True},
             'CHAR(1) UNICODE BINARY'),
            (mysql.MSChar, [1], {'charset':'utf8'},
             'CHAR(1) CHARACTER SET utf8'),
            (mysql.MSChar, [1], {'charset':'utf8', 'binary':True},
             'CHAR(1) CHARACTER SET utf8 BINARY'),
            (mysql.MSChar, [1], {'charset':'utf8', 'unicode':True},
             'CHAR(1) CHARACTER SET utf8'),
            (mysql.MSChar, [1], {'charset':'utf8', 'ascii':True},
             'CHAR(1) CHARACTER SET utf8'),
            (mysql.MSChar, [1], {'collation': 'utf8_bin'},
             'CHAR(1) COLLATE utf8_bin'),
            (mysql.MSChar, [1], {'charset': 'utf8', 'collation': 'utf8_bin'},
             'CHAR(1) CHARACTER SET utf8 COLLATE utf8_bin'),
            (mysql.MSChar, [1], {'charset': 'utf8', 'binary': True},
             'CHAR(1) CHARACTER SET utf8 BINARY'),
            (mysql.MSChar, [1], {'charset': 'utf8', 'collation': 'utf8_bin',
                              'binary': True},
             'CHAR(1) CHARACTER SET utf8 COLLATE utf8_bin'),
            (mysql.MSChar, [1], {'national':True},
             'NATIONAL CHAR(1)'),
            (mysql.MSChar, [1], {'national':True, 'charset':'utf8'},
             'NATIONAL CHAR(1)'),
            (mysql.MSChar, [1], {'national':True, 'charset':'utf8',
                                'binary':True},
             'NATIONAL CHAR(1) BINARY'),
            (mysql.MSChar, [1], {'national':True, 'binary':True,
                                'unicode':True},
             'NATIONAL CHAR(1) BINARY'),
            (mysql.MSChar, [1], {'national':True, 'collation':'utf8_bin'},
             'NATIONAL CHAR(1) COLLATE utf8_bin'),

            (mysql.MSString, [1], {'charset':'utf8', 'collation':'utf8_bin'},
             'VARCHAR(1) CHARACTER SET utf8 COLLATE utf8_bin'),
            (mysql.MSString, [1], {'national':True, 'collation':'utf8_bin'},
             'NATIONAL VARCHAR(1) COLLATE utf8_bin'),

            (mysql.MSTinyText, [], {'charset':'utf8', 'collation':'utf8_bin'},
             'TINYTEXT CHARACTER SET utf8 COLLATE utf8_bin'),

            (mysql.MSMediumText, [], {'charset':'utf8', 'binary':True},
             'MEDIUMTEXT CHARACTER SET utf8 BINARY'),

            (mysql.MSLongText, [], {'ascii':True},
             'LONGTEXT ASCII'),

            (mysql.ENUM, ["foo", "bar"], {'unicode':True},
             '''ENUM('foo','bar') UNICODE'''),

            (String, [20], {"collation": "utf8"}, 'VARCHAR(20) COLLATE utf8')


           ]

        for type_, args, kw, res in columns:
            type_inst = type_(*args, **kw)
            self.assert_compile(
                type_inst,
                res
            )
            # test that repr() copies out all arguments
            self.assert_compile(
                eval("mysql.%r" % type_inst)
                    if type_ is not String
                    else eval("%r" % type_inst),
                res
            )

    @testing.only_if('mysql')
    @testing.fails_on('mysql+mysqlconnector', "different unicode behavior")
    @testing.exclude('mysql', '<', (5, 0, 5), 'a 5.0+ feature')
    @testing.provide_metadata
    def test_charset_collate_table(self):
        t = Table('foo', self.metadata,
            Column('id', Integer),
            Column('data', UnicodeText),
            mysql_default_charset='utf8',
            mysql_collate='utf8_bin'
        )
        t.create()
        m2 = MetaData(testing.db)
        t2 = Table('foo', m2, autoload=True)
        eq_(t2.kwargs['mysql_collate'], 'utf8_bin')
        eq_(t2.kwargs['mysql_default charset'], 'utf8')

        # test [ticket:2906]
        # in order to test the condition here, need to use
        # MySQLdb 1.2.3 and also need to pass either use_unicode=1
        # or charset=utf8 to the URL.
        t.insert().execute(id=1, data=u('some text'))
        assert isinstance(testing.db.scalar(select([t.c.data])), util.text_type)

    def test_bit_50(self):
        """Exercise BIT types on 5.0+ (not valid for all engine types)"""

        for type_, expected in [
            (mysql.MSBit(), "BIT"),
            (mysql.MSBit(1), "BIT(1)"),
            (mysql.MSBit(63), "BIT(63)"),
        ]:
            self.assert_compile(type_, expected)

    @testing.exclude('mysql', '<', (5, 0, 5), 'a 5.0+ feature')
    @testing.provide_metadata
    def test_bit_50_roundtrip(self):
        bit_table = Table('mysql_bits', self.metadata,
                          Column('b1', mysql.MSBit),
                          Column('b2', mysql.MSBit()),
                          Column('b3', mysql.MSBit(), nullable=False),
                          Column('b4', mysql.MSBit(1)),
                          Column('b5', mysql.MSBit(8)),
                          Column('b6', mysql.MSBit(32)),
                          Column('b7', mysql.MSBit(63)),
                          Column('b8', mysql.MSBit(64)))
        self.metadata.create_all()

        meta2 = MetaData(testing.db)
        reflected = Table('mysql_bits', meta2, autoload=True)

        for table in bit_table, reflected:

            def roundtrip(store, expected=None):
                expected = expected or store
                table.insert(store).execute()
                row = table.select().execute().first()
                try:
                    self.assert_(list(row) == expected)
                except:
                    print("Storing %s" % store)
                    print("Expected %s" % expected)
                    print("Found %s" % list(row))
                    raise
                table.delete().execute().close()

            roundtrip([0] * 8)
            roundtrip([None, None, 0, None, None, None, None, None])
            roundtrip([1] * 8)
            roundtrip([sql.text("b'1'")] * 8, [1] * 8)

            i = 255
            roundtrip([0, 0, 0, 0, i, i, i, i])
            i = 2 ** 32 - 1
            roundtrip([0, 0, 0, 0, 0, i, i, i])
            i = 2 ** 63 - 1
            roundtrip([0, 0, 0, 0, 0, 0, i, i])
            i = 2 ** 64 - 1
            roundtrip([0, 0, 0, 0, 0, 0, 0, i])

    def test_boolean(self):
        for type_, expected in [
            (BOOLEAN(), "BOOL"),
            (Boolean(), "BOOL"),
            (mysql.TINYINT(1), "TINYINT(1)"),
            (mysql.TINYINT(1, unsigned=True), "TINYINT(1) UNSIGNED")
        ]:
            self.assert_compile(type_, expected)

    @testing.provide_metadata
    def test_boolean_roundtrip(self):
        bool_table = Table(
            'mysql_bool',
            self.metadata,
            Column('b1', BOOLEAN),
            Column('b2', Boolean),
            Column('b3', mysql.MSTinyInteger(1)),
            Column('b4', mysql.MSTinyInteger(1, unsigned=True)),
            Column('b5', mysql.MSTinyInteger),
            )
        self.metadata.create_all()
        table = bool_table

        def roundtrip(store, expected=None):
            expected = expected or store
            table.insert(store).execute()
            row = table.select().execute().first()
            self.assert_(list(row) == expected)
            for i, val in enumerate(expected):
                if isinstance(val, bool):
                    self.assert_(val is row[i])
            table.delete().execute()

        roundtrip([None, None, None, None, None])
        roundtrip([True, True, 1, 1, 1])
        roundtrip([False, False, 0, 0, 0])
        roundtrip([True, True, True, True, True], [True, True, 1,
                  1, 1])
        roundtrip([False, False, 0, 0, 0], [False, False, 0, 0, 0])

        meta2 = MetaData(testing.db)
        table = Table('mysql_bool', meta2, autoload=True)
        eq_(colspec(table.c.b3), 'b3 TINYINT(1)')
        eq_(colspec(table.c.b4), 'b4 TINYINT(1) UNSIGNED')
        meta2 = MetaData(testing.db)
        table = Table(
            'mysql_bool',
            meta2,
            Column('b1', BOOLEAN),
            Column('b2', Boolean),
            Column('b3', BOOLEAN),
            Column('b4', BOOLEAN),
            autoload=True,
            )
        eq_(colspec(table.c.b3), 'b3 BOOL')
        eq_(colspec(table.c.b4), 'b4 BOOL')
        roundtrip([None, None, None, None, None])
        roundtrip([True, True, 1, 1, 1], [True, True, True, True,
                  1])
        roundtrip([False, False, 0, 0, 0], [False, False, False,
                  False, 0])
        roundtrip([True, True, True, True, True], [True, True,
                  True, True, 1])
        roundtrip([False, False, 0, 0, 0], [False, False, False,
                  False, 0])

    def test_timestamp_fsp(self):
        self.assert_compile(
                mysql.TIMESTAMP(fsp=5),
                "TIMESTAMP(5)"
        )

    def test_timestamp_defaults(self):
        """Exercise funky TIMESTAMP default syntax when used in columns."""

        columns = [
            ([TIMESTAMP], {},
             'TIMESTAMP NULL'),

            ([mysql.MSTimeStamp], {},
             'TIMESTAMP NULL'),

            ([mysql.MSTimeStamp(),
              DefaultClause(sql.text('CURRENT_TIMESTAMP'))],
             {},
             "TIMESTAMP NULL DEFAULT CURRENT_TIMESTAMP"),

            ([mysql.MSTimeStamp,
              DefaultClause(sql.text('CURRENT_TIMESTAMP'))],
             {'nullable': False},
             "TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP"),

            ([mysql.MSTimeStamp,
              DefaultClause(sql.text("'1999-09-09 09:09:09'"))],
             {'nullable': False},
             "TIMESTAMP NOT NULL DEFAULT '1999-09-09 09:09:09'"),

            ([mysql.MSTimeStamp(),
              DefaultClause(sql.text("'1999-09-09 09:09:09'"))],
             {},
             "TIMESTAMP NULL DEFAULT '1999-09-09 09:09:09'"),

            ([mysql.MSTimeStamp(),
              DefaultClause(sql.text(
                  "'1999-09-09 09:09:09' "
                  "ON UPDATE CURRENT_TIMESTAMP"))],
             {},
             "TIMESTAMP NULL DEFAULT '1999-09-09 09:09:09' "
             "ON UPDATE CURRENT_TIMESTAMP"),

            ([mysql.MSTimeStamp,
              DefaultClause(sql.text(
                  "'1999-09-09 09:09:09' "
                  "ON UPDATE CURRENT_TIMESTAMP"))],
             {'nullable': False},
             "TIMESTAMP NOT NULL DEFAULT '1999-09-09 09:09:09' "
             "ON UPDATE CURRENT_TIMESTAMP"),

            ([mysql.MSTimeStamp(),
              DefaultClause(sql.text(
                  "CURRENT_TIMESTAMP "
                  "ON UPDATE CURRENT_TIMESTAMP"))],
             {},
             "TIMESTAMP NULL DEFAULT CURRENT_TIMESTAMP "
             "ON UPDATE CURRENT_TIMESTAMP"),

            ([mysql.MSTimeStamp,
              DefaultClause(sql.text(
                  "CURRENT_TIMESTAMP "
                  "ON UPDATE CURRENT_TIMESTAMP"))],
             {'nullable': False},
             "TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP "
             "ON UPDATE CURRENT_TIMESTAMP"),
        ]
        for spec, kw, expected in columns:
            c = Column('t', *spec, **kw)
            Table('t', MetaData(), c)
            self.assert_compile(
                schema.CreateColumn(c),
                "t %s" % expected

            )

    @testing.requires.mysql_zero_date
    @testing.provide_metadata
    def test_timestamp_nullable(self):
        ts_table = Table(
            'mysql_timestamp', self.metadata,
            Column('t1', TIMESTAMP),
            Column('t2', TIMESTAMP, nullable=False),
            mysql_engine='InnoDB'
        )
        self.metadata.create_all()

        # TIMESTAMP without NULL inserts current time when passed
        # NULL.  when not passed, generates 0000-00-00 quite
        # annoyingly.
        # the flag http://dev.mysql.com/doc/refman/5.6/en/\
        # server-system-variables.html#sysvar_explicit_defaults_for_timestamp
        # changes this for 5.6 if set.

        # normalize dates that are over the second boundary
        def normalize(dt):
            if dt is None:
                return None
            elif (dt - now).seconds < 5:
                return now
            else:
                return dt

        with testing.db.begin() as conn:
            now = conn.scalar("select now()")

            conn.execute(
                ts_table.insert(), {'t1': now, 't2': None})
            conn.execute(
                ts_table.insert(), {'t1': None, 't2': None})
            conn.execute(
                ts_table.insert(), {'t2': None})

            eq_(
                [tuple([normalize(dt) for dt in row])
                 for row in conn.execute(ts_table.select())],
                [
                    (now, now),
                    (None, now),
                    (None, now)
                ]
            )


    def test_datetime_generic(self):
        self.assert_compile(
                mysql.DATETIME(),
                "DATETIME"
        )

    def test_datetime_fsp(self):
        self.assert_compile(
                mysql.DATETIME(fsp=4),
                "DATETIME(4)"
        )


    def test_time_generic(self):
        """"Exercise TIME."""

        self.assert_compile(
                mysql.TIME(),
                "TIME"
        )

    def test_time_fsp(self):
        self.assert_compile(
                mysql.TIME(fsp=5),
                "TIME(5)"
        )

    def test_time_result_processor(self):
        eq_(
            mysql.TIME().result_processor(None, None)(
                    datetime.timedelta(seconds=35, minutes=517,
                            microseconds=450
                    )),
            datetime.time(8, 37, 35, 450)
        )

    @testing.fails_on("mysql+oursql", "TODO: probable OurSQL bug")
    @testing.provide_metadata
    def test_time_roundtrip(self):
        t = Table('mysql_time', self.metadata,
                Column('t1', mysql.TIME())
            )
        t.create()
        t.insert().values(t1=datetime.time(8, 37, 35)).execute()
        eq_(select([t.c.t1]).scalar(), datetime.time(8, 37, 35))

    @testing.provide_metadata
    def test_year(self):
        """Exercise YEAR."""

        year_table = Table('mysql_year', self.metadata,
                           Column('y1', mysql.MSYear),
                           Column('y2', mysql.MSYear),
                           Column('y3', mysql.MSYear),
                           Column('y5', mysql.MSYear(4)))

        for col in year_table.c:
            self.assert_(repr(col))
        year_table.create()
        reflected = Table('mysql_year', MetaData(testing.db),
                          autoload=True)

        for table in year_table, reflected:
            table.insert(['1950', '50', None, 1950]).execute()
            row = table.select().execute().first()
            eq_(list(row), [1950, 2050, None, 1950])
            table.delete().execute()
            self.assert_(colspec(table.c.y1).startswith('y1 YEAR'))
            eq_(colspec(table.c.y5), 'y5 YEAR(4)')


class JSONTest(fixtures.TestBase):
    __requires__ = ('json_type', )
    __only_on__ = 'mysql'
    __backend__ = True

    @testing.provide_metadata
    def test_reflection(self):

        Table(
            'mysql_json', self.metadata,
            Column('foo', mysql.JSON)
        )
        self.metadata.create_all()

        reflected = Table('mysql_json', MetaData(), autoload_with=testing.db)
        is_(reflected.c.foo.type._type_affinity, sqltypes.JSON)
        assert isinstance(reflected.c.foo.type, mysql.JSON)

    @testing.provide_metadata
    def test_rudimental_round_trip(self):
        # note that test_suite has many more JSON round trip tests
        # using the backend-agnostic JSON type

        mysql_json = Table(
            'mysql_json', self.metadata,
            Column('foo', mysql.JSON)
        )
        self.metadata.create_all()

        value = {
            'json': {'foo': 'bar'},
            'recs': ['one', 'two']
        }

        with testing.db.connect() as conn:
            conn.execute(mysql_json.insert(), foo=value)

            eq_(
                conn.scalar(select([mysql_json.c.foo])),
                value
            )


class EnumSetTest(
        fixtures.TestBase, AssertsExecutionResults, AssertsCompiledSQL):

    __only_on__ = 'mysql'
    __dialect__ = mysql.dialect()
    __backend__ = True

    @testing.provide_metadata
    def test_enum(self):
        """Exercise the ENUM type."""

        with testing.expect_deprecated('Manually quoting ENUM value literals'):
            e1, e2 = mysql.ENUM("'a'", "'b'"), mysql.ENUM("'a'", "'b'")
            e3 = mysql.ENUM("'a'", "'b'", strict=True)
            e4 = mysql.ENUM("'a'", "'b'", strict=True)

        enum_table = Table(
            'mysql_enum', self.metadata,
            Column('e1', e1),
            Column('e2', e2, nullable=False),
            Column(
                'e2generic',
                Enum("a", "b", validate_strings=True), nullable=False),
            Column('e3', e3),
            Column('e4', e4,
                   nullable=False),
            Column('e5', mysql.ENUM("a", "b")),
            Column('e5generic', Enum("a", "b")),
            Column('e6', mysql.ENUM("'a'", "b")),
        )

        eq_(
            colspec(enum_table.c.e1),
            "e1 ENUM('a','b')")
        eq_(
            colspec(enum_table.c.e2),
            "e2 ENUM('a','b') NOT NULL")
        eq_(
            colspec(enum_table.c.e2generic),
            "e2generic ENUM('a','b') NOT NULL")
        eq_(
            colspec(enum_table.c.e3),
            "e3 ENUM('a','b')")
        eq_(
            colspec(enum_table.c.e4),
            "e4 ENUM('a','b') NOT NULL")
        eq_(
            colspec(enum_table.c.e5),
            "e5 ENUM('a','b')")
        eq_(
            colspec(enum_table.c.e5generic),
            "e5generic ENUM('a','b')")
        eq_(
            colspec(enum_table.c.e6),
            "e6 ENUM('''a''','b')")
        enum_table.create()

        assert_raises(
            exc.DBAPIError, enum_table.insert().execute,
            e1=None, e2=None, e3=None, e4=None)

        assert_raises(
            exc.StatementError,
            enum_table.insert().execute,
            e1='c', e2='c', e2generic='c', e3='c',
            e4='c', e5='c', e5generic='c', e6='c')

        enum_table.insert().execute()
        enum_table.insert().execute(e1='a', e2='a', e2generic='a', e3='a',
                                    e4='a', e5='a', e5generic='a', e6="'a'")
        enum_table.insert().execute(e1='b', e2='b', e2generic='b', e3='b',
                                    e4='b', e5='b', e5generic='b', e6='b')

        res = enum_table.select().execute().fetchall()

        expected = [(None, 'a', 'a', None, 'a', None, None, None),
                    ('a', 'a', 'a', 'a', 'a', 'a', 'a', "'a'"),
                    ('b', 'b', 'b', 'b', 'b', 'b', 'b', 'b')]

        eq_(res, expected)

    def _set_fixture_one(self):
        with testing.expect_deprecated('Manually quoting SET value literals'):
            e1, e2 = mysql.SET("'a'", "'b'"), mysql.SET("'a'", "'b'")
            e4 = mysql.SET("'a'", "b")
            e5 = mysql.SET("'a'", "'b'", quoting="quoted")

        set_table = Table(
            'mysql_set', self.metadata,
            Column('e1', e1),
            Column('e2', e2, nullable=False),
            Column('e3', mysql.SET("a", "b")),
            Column('e4', e4),
            Column('e5', e5)
        )
        return set_table

    def test_set_colspec(self):
        self.metadata = MetaData()
        set_table = self._set_fixture_one()
        eq_(
            colspec(set_table.c.e1),
            "e1 SET('a','b')")
        eq_(colspec(
            set_table.c.e2),
            "e2 SET('a','b') NOT NULL")
        eq_(
            colspec(set_table.c.e3),
            "e3 SET('a','b')")
        eq_(
            colspec(set_table.c.e4),
            "e4 SET('''a''','b')")
        eq_(
            colspec(set_table.c.e5),
            "e5 SET('a','b')")

    @testing.provide_metadata
    def test_no_null(self):
        set_table = self._set_fixture_one()
        set_table.create()
        assert_raises(
            exc.DBAPIError, set_table.insert().execute,
            e1=None, e2=None, e3=None, e4=None)

    @testing.only_on('+oursql')
    @testing.provide_metadata
    def test_oursql_error_one(self):
        set_table = self._set_fixture_one()
        set_table.create()
        assert_raises(
            exc.StatementError, set_table.insert().execute,
            e1='c', e2='c', e3='c', e4='c')

    @testing.requires.mysql_non_strict
    @testing.provide_metadata
    def test_empty_set_no_empty_string(self):
        t = Table(
            't', self.metadata,
            Column('id', Integer),
            Column('data', mysql.SET("a", "b"))
        )
        t.create()
        with testing.db.begin() as conn:
            conn.execute(
                t.insert(),
                {'id': 1, 'data': set()},
                {'id': 2, 'data': set([''])},
                {'id': 3, 'data': set(['a', ''])},
                {'id': 4, 'data': set(['b'])},
            )
            eq_(
                conn.execute(t.select().order_by(t.c.id)).fetchall(),
                [
                    (1, set()),
                    (2, set()),
                    (3, set(['a'])),
                    (4, set(['b'])),
                ]
            )

    def test_bitwise_required_for_empty(self):
        assert_raises_message(
            exc.ArgumentError,
            "Can't use the blank value '' in a SET without setting "
            "retrieve_as_bitwise=True",
            mysql.SET, "a", "b", ''
        )

    @testing.provide_metadata
    def test_empty_set_empty_string(self):
        t = Table(
            't', self.metadata,
            Column('id', Integer),
            Column('data', mysql.SET("a", "b", '', retrieve_as_bitwise=True))
        )
        t.create()
        with testing.db.begin() as conn:
            conn.execute(
                t.insert(),
                {'id': 1, 'data': set()},
                {'id': 2, 'data': set([''])},
                {'id': 3, 'data': set(['a', ''])},
                {'id': 4, 'data': set(['b'])},
            )
            eq_(
                conn.execute(t.select().order_by(t.c.id)).fetchall(),
                [
                    (1, set()),
                    (2, set([''])),
                    (3, set(['a', ''])),
                    (4, set(['b'])),
                ]
            )

    @testing.provide_metadata
    def test_string_roundtrip(self):
        set_table = self._set_fixture_one()
        set_table.create()
        with testing.db.begin() as conn:
            conn.execute(
                set_table.insert(),
                dict(e1='a', e2='a', e3='a', e4="'a'", e5="a,b"))
            conn.execute(
                set_table.insert(),
                dict(e1='b', e2='b', e3='b', e4='b', e5="a,b"))

            expected = [
                (set(['a']), set(['a']), set(['a']),
                 set(["'a'"]), set(['a', 'b'])),
                (set(['b']), set(['b']), set(['b']),
                 set(['b']), set(['a', 'b']))
            ]
            res = conn.execute(
                set_table.select()
            ).fetchall()

            eq_(res, expected)

    @testing.provide_metadata
    def test_unicode_roundtrip(self):
        set_table = Table(
            't', self.metadata,
            Column('id', Integer, primary_key=True),
            Column('data', mysql.SET(
                u('réveillé'), u('drôle'), u('S’il'), convert_unicode=True)),
        )

        set_table.create()
        with testing.db.begin() as conn:
            conn.execute(
                set_table.insert(),
                {"data": set([u('réveillé'), u('drôle')])})

            row = conn.execute(
                set_table.select()
            ).first()

            eq_(
                row,
                (1, set([u('réveillé'), u('drôle')]))
            )

    @testing.provide_metadata
    def test_int_roundtrip(self):
        set_table = self._set_fixture_one()
        set_table.create()
        with testing.db.begin() as conn:
            conn.execute(
                set_table.insert(),
                dict(e1=1, e2=2, e3=3, e4=3, e5=0)
            )
            res = conn.execute(set_table.select()).first()
            eq_(
                res,
                (
                    set(['a']), set(['b']), set(['a', 'b']),
                    set(["'a'", 'b']), set([]))
            )

    @testing.provide_metadata
    def test_set_roundtrip_plus_reflection(self):
        set_table = Table(
            'mysql_set', self.metadata,
            Column('s1', mysql.SET("dq", "sq")),
            Column('s2', mysql.SET("a")),
            Column('s3', mysql.SET("5", "7", "9")))

        eq_(colspec(set_table.c.s1), "s1 SET('dq','sq')")
        eq_(colspec(set_table.c.s2), "s2 SET('a')")
        eq_(colspec(set_table.c.s3), "s3 SET('5','7','9')")
        set_table.create()
        reflected = Table('mysql_set', MetaData(testing.db),
                          autoload=True)
        for table in set_table, reflected:

            def roundtrip(store, expected=None):
                expected = expected or store
                table.insert(store).execute()
                row = table.select().execute().first()
                eq_(row, tuple(expected))
                table.delete().execute()

            roundtrip([None, None, None], [None] * 3)
            roundtrip(['', '', ''], [set([])] * 3)
            roundtrip([set(['dq']), set(['a']), set(['5'])])
            roundtrip(['dq', 'a', '5'], [set(['dq']), set(['a']),
                      set(['5'])])
            roundtrip([1, 1, 1], [set(['dq']), set(['a']), set(['5'])])
            roundtrip([set(['dq', 'sq']), None, set(['9', '5', '7'])])
        set_table.insert().execute(
            {'s3': set(['5'])},
            {'s3': set(['5', '7'])},
            {'s3': set(['5', '7', '9'])},
            {'s3': set(['7', '9'])})

        rows = select(
            [set_table.c.s3],
            set_table.c.s3.in_([set(['5']), ['5', '7']])
        ).execute().fetchall()
        found = set([frozenset(row[0]) for row in rows])
        eq_(found, set([frozenset(['5']), frozenset(['5', '7'])]))

    @testing.provide_metadata
    def test_unicode_enum(self):
        metadata = self.metadata
        t1 = Table(
            'table', metadata,
            Column('id', Integer, primary_key=True),
            Column('value', Enum(u('réveillé'), u('drôle'), u('S’il'))),
            Column('value2', mysql.ENUM(u('réveillé'), u('drôle'), u('S’il')))
        )
        metadata.create_all()
        t1.insert().execute(value=u('drôle'), value2=u('drôle'))
        t1.insert().execute(value=u('réveillé'), value2=u('réveillé'))
        t1.insert().execute(value=u('S’il'), value2=u('S’il'))
        eq_(t1.select().order_by(t1.c.id).execute().fetchall(),
            [
                (1, u('drôle'), u('drôle')),
                (2, u('réveillé'), u('réveillé')),
                (3, u('S’il'), u('S’il'))
            ])

        # test reflection of the enum labels

        m2 = MetaData(testing.db)
        t2 = Table('table', m2, autoload=True)

        # TODO: what's wrong with the last element ?  is there
        # latin-1 stuff forcing its way in ?

        eq_(
            t2.c.value.type.enums[0:2],
            [u('réveillé'), u('drôle')]  # u'S’il') # eh ?
        )

        eq_(
            t2.c.value2.type.enums[0:2],
            [u('réveillé'), u('drôle')]  # u'S’il') # eh ?
        )

    def test_enum_compile(self):
        e1 = Enum('x', 'y', 'z', name='somename')
        t1 = Table('sometable', MetaData(), Column('somecolumn', e1))
        self.assert_compile(schema.CreateTable(t1),
                            "CREATE TABLE sometable (somecolumn "
                            "ENUM('x','y','z'))")
        t1 = Table('sometable', MetaData(), Column('somecolumn',
                   Enum('x', 'y', 'z', native_enum=False)))
        self.assert_compile(schema.CreateTable(t1),
                            "CREATE TABLE sometable (somecolumn "
                            "VARCHAR(1), CHECK (somecolumn IN ('x', "
                            "'y', 'z')))")

    @testing.provide_metadata
    @testing.exclude('mysql', '<', (4,), "3.23 can't handle an ENUM of ''")
    def test_enum_parse(self):

        with testing.expect_deprecated('Manually quoting ENUM value literals'):
            enum_table = Table(
                'mysql_enum', self.metadata,
                Column('e1', mysql.ENUM("'a'")),
                Column('e2', mysql.ENUM("''")),
                Column('e3', mysql.ENUM('a')),
                Column('e4', mysql.ENUM('')),
                Column('e5', mysql.ENUM("'a'", "''")),
                Column('e6', mysql.ENUM("''", "'a'")),
                Column('e7', mysql.ENUM("''", "'''a'''", "'b''b'", "''''")))

        for col in enum_table.c:
            self.assert_(repr(col))

        enum_table.create()
        reflected = Table('mysql_enum', MetaData(testing.db),
                          autoload=True)
        for t in enum_table, reflected:
            eq_(t.c.e1.type.enums, ["a"])
            eq_(t.c.e2.type.enums, [""])
            eq_(t.c.e3.type.enums, ["a"])
            eq_(t.c.e4.type.enums, [""])
            eq_(t.c.e5.type.enums, ["a", ""])
            eq_(t.c.e6.type.enums, ["", "a"])
            eq_(t.c.e7.type.enums, ["", "'a'", "b'b", "'"])

    @testing.provide_metadata
    @testing.exclude('mysql', '<', (5,))
    def test_set_parse(self):
        with testing.expect_deprecated('Manually quoting SET value literals'):
            set_table = Table(
                'mysql_set', self.metadata,
                Column('e1', mysql.SET("'a'")),
                Column('e2', mysql.SET("''", retrieve_as_bitwise=True)),
                Column('e3', mysql.SET('a')),
                Column('e4', mysql.SET('', retrieve_as_bitwise=True)),
                Column('e5', mysql.SET("'a'", "''", retrieve_as_bitwise=True)),
                Column('e6', mysql.SET("''", "'a'", retrieve_as_bitwise=True)),
                Column('e7', mysql.SET(
                    "''", "'''a'''", "'b''b'", "''''",
                    retrieve_as_bitwise=True)))

        for col in set_table.c:
            self.assert_(repr(col))

        set_table.create()

        # don't want any warnings on reflection
        reflected = Table('mysql_set', MetaData(testing.db),
                          autoload=True)
        for t in set_table, reflected:
            eq_(t.c.e1.type.values, ("a",))
            eq_(t.c.e2.type.values, ("",))
            eq_(t.c.e3.type.values, ("a",))
            eq_(t.c.e4.type.values, ("",))
            eq_(t.c.e5.type.values, ("a", ""))
            eq_(t.c.e6.type.values, ("", "a"))
            eq_(t.c.e7.type.values, ("", "'a'", "b'b", "'"))

    @testing.provide_metadata
    def test_broken_enum_returns_blanks(self):
        t = Table(
            'enum_missing',
            self.metadata,
            Column('id', Integer, primary_key=True),
            Column('e1', sqltypes.Enum('one', 'two', 'three')),
            Column('e2', mysql.ENUM('one', 'two', 'three'))
        )
        t.create()

        with testing.db.connect() as conn:
            conn.execute(t.insert(), {"e1": "nonexistent", "e2": "nonexistent"})
            conn.execute(t.insert(), {"e1": "", "e2": ""})
            conn.execute(t.insert(), {"e1": "two", "e2": "two"})
            conn.execute(t.insert(), {"e1": None, "e2": None})

            eq_(
                conn.execute(
                    select([t.c.e1, t.c.e2]).order_by(t.c.id)
                ).fetchall(),
                [("", ""), ("", ""), ("two", "two"), (None, None)]
            )


def colspec(c):
    return testing.db.dialect.ddl_compiler(
        testing.db.dialect, None).get_column_specification(c)