'Ensure Int32Type supports empty values'

def test_can_insert_empty_values_for_int32(self):

    s = self.session
    execute_until_pass(s, 'CREATE    TABLE    empty_values    (a    text    PRIMARY    KEY,    b    int)')
    execute_until_pass(s, "INSERT    INTO    empty_values    (a,    b)    VALUES    ('a',    blobAsInt(0x))")
    try:
        Int32Type.support_empty_values = True
        results = execute_until_pass(s, "SELECT    b    FROM    empty_values    WHERE    a='a'")[0]
        self.assertIs(EMPTY, results.b)
    finally:
        Int32Type.support_empty_values = False
