# -*- coding: utf-8 -*-
# This file is part of Tryton.  The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.

import unittest
import datetime
import sys

from decimal import Decimal
from trytond import pyson


class PYSONTestCase(unittest.TestCase):
    'Test PySON'

    def test_Decimal(self):
        "Test PYSONEncoder for Decimal"
        self.assertEqual(pyson.PYSONEncoder().encode(Decimal('1.1')), '1.1')

    def test_Eval(self):
        'Test pyson.Eval'
        self.assertEqual(pyson.Eval('test').pyson(), {
            '__class__': 'Eval',
            'v': 'test',
            'd': '',
            })
        self.assertEqual(pyson.Eval('test', 'foo').pyson(), {
            '__class__': 'Eval',
            'v': 'test',
            'd': 'foo',
            })

        self.assertEqual(pyson.Eval('test', 'foo').types(), set([str]))
        self.assertEqual(pyson.Eval('test', 1).types(), set([int]))

        eval = pyson.PYSONEncoder().encode(pyson.Eval('test', 0))
        self.assertEqual(pyson.PYSONDecoder({'test': 1}).decode(eval), 1)
        self.assertEqual(pyson.PYSONDecoder().decode(eval), 0)

        self.assertEqual(repr(pyson.Eval('test', 'foo')),
            "Eval('test', 'foo')")

        self.assertIsInstance(~pyson.Eval('test', False), pyson.Not)
        self.assertIsInstance(pyson.Eval('test', False) & True, pyson.And)
        self.assertIsInstance(True & pyson.Eval('test', False), pyson.And)
        self.assertIsInstance(pyson.Eval('test', False) | False, pyson.Or)
        self.assertIsInstance(False | pyson.Eval('test', False), pyson.Or)

    def test_Not(self):
        'Test pyson.Not'
        self.assertEqual(pyson.Not(True).pyson(), {
            '__class__': 'Not',
            'v': True,
            })

        self.assertEqual(pyson.Not(True).types(), set([bool]))

        eval = pyson.PYSONEncoder().encode(pyson.Not(True))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Not(False))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        self.assertEqual(repr(pyson.Not(True)), 'Not(True)')

    def test_Bool(self):
        'Test pyson.Bool'
        self.assertEqual(pyson.Bool('test').pyson(), {
            '__class__': 'Bool',
            'v': 'test',
            })

        self.assertEqual(pyson.Bool('test').types(), set([bool]))

        eval = pyson.PYSONEncoder().encode(pyson.Bool(True))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Bool(False))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Bool('test'))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Bool(''))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Bool(1))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Bool(0))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Bool(['test']))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Bool([]))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Bool({'foo': 'bar'}))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Bool({}))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        self.assertEqual(repr(pyson.Bool('test')), "Bool('test')")

    def test_And(self):
        'Test pyson.And'
        self.assertEqual(pyson.And(True, False).pyson(), {
            '__class__': 'And',
            's': [True, False],
            })

        if not sys.flags.optimize:
            self.assertRaises(AssertionError, pyson.And, True)
            self.assertRaises(AssertionError, pyson.And)

        self.assertEqual(pyson.And(True, False).types(), set([bool]))

        eval = pyson.PYSONEncoder().encode(pyson.And(True, True))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.And(True, True, True))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.And(True, False))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.And(False, True))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.And(False, False))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.And(False, False, False))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.And(True, False, False))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.And(False, True, False))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.And(False, False, True))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        self.assertEqual(repr(pyson.And(False, True, True)),
            'And(False, True, True)')

    def test_Or(self):
        'Test pyson.Or'
        self.assertEqual(pyson.Or(True, False).pyson(), {
            '__class__': 'Or',
            's': [True, False],
            })

        if not sys.flags.optimize:
            self.assertRaises(AssertionError, pyson.Or, True)
            self.assertRaises(AssertionError, pyson.Or)

        self.assertEqual(pyson.Or(True, False).types(), set([bool]))

        eval = pyson.PYSONEncoder().encode(pyson.Or(True, True))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Or(True, True, True))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Or(True, False))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Or(False, True))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Or(False, False))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Or(False, False, False))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Or(True, False, False))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Or(False, True, False))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Or(False, False, True))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        self.assertEqual(repr(pyson.Or(False, True, True)),
            'Or(False, True, True)')

    def test_Equal(self):
        'Test pyson.Equal'
        self.assertEqual(pyson.Equal('test', 'test').pyson(), {
            '__class__': 'Equal',
            's1': 'test',
            's2': 'test',
            })

        if not sys.flags.optimize:
            self.assertRaises(AssertionError, pyson.Equal, 'test', True)

        self.assertEqual(pyson.Equal('test', 'test').types(), set([bool]))

        eval = pyson.PYSONEncoder().encode(pyson.Equal('test', 'test'))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Equal('foo', 'bar'))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        self.assertEqual(repr(pyson.Equal('foo', 'bar')),
            "Equal('foo', 'bar')")

    def test_Greater(self):
        'Test pyson.Greater'
        self.assertEqual(pyson.Greater(1, 0).pyson(), {
            '__class__': 'Greater',
            's1': 1,
            's2': 0,
            'e': False,
            })

        if not sys.flags.optimize:
            self.assertRaises(AssertionError, pyson.Greater, 'test', 0)
            self.assertRaises(AssertionError, pyson.Greater, 1, 'test')

        self.assertEqual(pyson.Greater(1, 0).types(), set([bool]))

        eval = pyson.PYSONEncoder().encode(pyson.Greater(1, 0))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Greater(0, 1))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Greater(1, 0, True))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Greater(0, 1, True))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Greater(1, 1))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Greater(1, 1, True))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Greater(None, 1))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Greater(1, None))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        self.assertEqual(repr(pyson.Greater(1, 0)), 'Greater(1, 0, False)')

    def test_Less(self):
        'Test pyson.Less'
        self.assertEqual(pyson.Less(0, 1).pyson(), {
            '__class__': 'Less',
            's1': 0,
            's2': 1,
            'e': False,
            })

        if not sys.flags.optimize:
            self.assertRaises(AssertionError, pyson.Less, 'test', 1)
            self.assertRaises(AssertionError, pyson.Less, 0, 'test')

        self.assertEqual(pyson.Less(0, 1).types(), set([bool]))

        eval = pyson.PYSONEncoder().encode(pyson.Less(0, 1))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Less(1, 0))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Less(0, 1, True))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Less(1, 0, True))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Less(1, 1))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Less(1, 1, True))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Less(None, 1))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.Less(1, None))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        self.assertEqual(repr(pyson.Less(0, 1)), 'Less(0, 1, False)')

    def test_If(self):
        'Test pyson.If'
        self.assertEqual(pyson.If(True, 'foo', 'bar').pyson(), {
            '__class__': 'If',
            'c': True,
            't': 'foo',
            'e': 'bar',
            })

        if not sys.flags.optimize:
            self.assertRaises(AssertionError, pyson.If, True, 'foo', False)

        self.assertEqual(pyson.If(True, 'foo', 'bar').types(),
            set([str]))
        self.assertEqual(pyson.If(True, False, True).types(), set([bool]))

        eval = pyson.PYSONEncoder().encode(pyson.If(True, 'foo', 'bar'))
        self.assertEqual(pyson.PYSONDecoder().decode(eval), 'foo')

        eval = pyson.PYSONEncoder().encode(pyson.If(False, 'foo', 'bar'))
        self.assertEqual(pyson.PYSONDecoder().decode(eval), 'bar')

        self.assertEqual(repr(pyson.If(True, 'foo', 'bar')),
            "If(True, 'foo', 'bar')")

    def test_Get(self):
        'Test pyson.Get'
        self.assertEqual(pyson.Get({'foo': 'bar'}, 'foo', 'default').pyson(), {
            '__class__': 'Get',
            'v': {'foo': 'bar'},
            'k': 'foo',
            'd': 'default',
            })

        if not sys.flags.optimize:
            self.assertRaises(
                AssertionError, pyson.Get, 'test', 'foo', 'default')
            self.assertRaises(AssertionError, pyson.Get, {}, 1, 'default')

        self.assertEqual(pyson.Get({}, 'foo', 'default').types(),
            set([str]))
        self.assertEqual(pyson.Get({}, 'foo', True).types(), set([bool]))

        eval = pyson.PYSONEncoder().encode(pyson.Get(
            {'foo': 'bar'}, 'foo', 'default'))
        self.assertEqual(pyson.PYSONDecoder().decode(eval), 'bar')

        eval = pyson.PYSONEncoder().encode(pyson.Get(
            {'foo': 'bar'}, 'test', 'default'))
        self.assertEqual(pyson.PYSONDecoder().decode(eval), 'default')

        eval = pyson.PYSONEncoder().encode(pyson.Get(
            {}, 'foo', 'default'))
        self.assertEqual(pyson.PYSONDecoder().decode(eval), 'default')

        self.assertEqual(repr(pyson.Get({'foo': 'bar'}, 'foo', 'default')),
            "Get({'foo': 'bar'}, 'foo', 'default')")

    def test_In(self):
        'Test pyson.In'
        self.assertEqual(pyson.In('foo', {'foo': 'bar'}).pyson(), {
            '__class__': 'In',
            'k': 'foo',
            'v': {'foo': 'bar'},
            })

        if not sys.flags.optimize:
            self.assertRaises(AssertionError, pyson.In, object(), {})
            self.assertRaises(AssertionError, pyson.In, 'test', 'foo')

        self.assertEqual(pyson.In('foo', {}).types(), set([bool]))

        eval = pyson.PYSONEncoder().encode(pyson.In('foo', {'foo': 'bar'}))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.In('1', {1: 'bar'}))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.In('test', {'foo': 'bar'}))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.In('1', {2: 'bar'}))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.In('test', {}))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.In('foo', ['foo']))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.In(1, [1]))
        self.assertTrue(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.In('test', ['foo']))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.In(1, [2]))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        eval = pyson.PYSONEncoder().encode(pyson.In('test', []))
        self.assertFalse(pyson.PYSONDecoder().decode(eval))

        self.assertEqual(repr(pyson.In('foo', ['foo', 'bar'])),
            "In('foo', ['foo', 'bar'])")

    def test_Date(self):
        'Test pyson.Date'
        self.assertEqual(pyson.Date(2010, 1, 12, -1, 12, -7).pyson(), {
            '__class__': 'Date',
            'y': 2010,
            'M': 1,
            'd': 12,
            'dy': -1,
            'dM': 12,
            'dd': -7
            })

        if not sys.flags.optimize:
            self.assertRaises(
                AssertionError, pyson.Date, 'test', 1, 12, -1, 12, -7)
            self.assertRaises(
                AssertionError, pyson.Date, 2010, 'test', 12, -1, 12, -7)
            self.assertRaises(
                AssertionError, pyson.Date, 2010, 1, 'test', -1, 12, -7)
            self.assertRaises(
                AssertionError, pyson.Date, 2010, 1, 12, 'test', 12, -7)
            self.assertRaises(
                AssertionError, pyson.Date, 2010, 1, 12, -1, 'test', -7)
            self.assertRaises(
                AssertionError, pyson.Date, 2010, 1, 12, -1, 12, 'test')

        self.assertEqual(pyson.Date(2010, 1, 12, -1, 12, -7).types(),
            set([datetime.date]))

        eval = pyson.PYSONEncoder().encode(pyson.Date())
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.date.today())

        eval = pyson.PYSONEncoder().encode(pyson.Date(2010, 1, 12))
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.date(2010, 1, 12))

        eval = pyson.PYSONEncoder().encode(pyson.Date(2010, 1, 12, -1))
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.date(2009, 1, 12))

        eval = pyson.PYSONEncoder().encode(pyson.Date(2010, 1, 12, 0, 12))
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.date(2011, 1, 12))

        eval = pyson.PYSONEncoder().encode(pyson.Date(2010, 1, 12, 0, 0, -7))
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.date(2010, 1, 5))

        eval = pyson.PYSONEncoder().encode(datetime.date(2010, 2, 22))
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.date(2010, 2, 22))

        self.assertEqual(repr(pyson.Date(2010, 1, 12, -1, 12, -7)),
            'Date(2010, 1, 12, -1, 12, -7)')

    def test_DateTime(self):
        'Test pyson.DateTime'
        self.assertEqual(pyson.DateTime(2010, 1, 12, 10, 30, 20, 0,
            -1, 12, -7, 2, 15, 30, 1).pyson(), {
                '__class__': 'DateTime',
                'y': 2010,
                'M': 1,
                'd': 12,
                'h': 10,
                'm': 30,
                's': 20,
                'ms': 0,
                'dy': -1,
                'dM': 12,
                'dd': -7,
                'dh': 2,
                'dm': 15,
                'ds': 30,
                'dms': 1,
                })

        if not sys.flags.optimize:
            self.assertRaises(
                AssertionError, pyson.DateTime,
                'test', 1, 12, 10, 30, 20, 0, -1, 12, -7, 2, 15, 30, 1)
            self.assertRaises(
                AssertionError, pyson.DateTime,
                2010, 'test', 12, 10, 30, 20, 0, -1, 12, -7, 2, 15, 30, 1)
            self.assertRaises(
                AssertionError, pyson.DateTime,
                2010, 1, 'test', 10, 30, 20, 0, -1, 12, -7, 2, 15, 30, 1)
            self.assertRaises(
                AssertionError, pyson.DateTime,
                2010, 1, 12, 'test', 30, 20, 0, -1, 12, -7, 2, 15, 30, 1)
            self.assertRaises(
                AssertionError, pyson.DateTime,
                2010, 1, 12, 10, 'test', 20, 0, -1, 12, -7, 2, 15, 30, 1)
            self.assertRaises(
                AssertionError, pyson.DateTime,
                2010, 1, 12, 10, 30, 'test', 0, -1, 12, -7, 2, 15, 30, 1)
            self.assertRaises(
                AssertionError, pyson.DateTime,
                2010, 1, 12, 10, 30, 20, 'test', -1, 12, -7, 2, 15, 30, 1)
            self.assertRaises(
                AssertionError, pyson.DateTime,
                2010, 1, 12, 10, 30, 20, 0, 'test', 12, -7, 2, 15, 30, 1)
            self.assertRaises(
                AssertionError, pyson.DateTime,
                2010, 1, 12, 10, 30, 20, 0, -1, 'test', -7, 2, 15, 30, 1)
            self.assertRaises(
                AssertionError, pyson.DateTime,
                2010, 1, 12, 10, 30, 20, 0, -1, 12, 'test', 2, 15, 30, 1)
            self.assertRaises(
                AssertionError, pyson.DateTime,
                2010, 1, 12, 10, 30, 20, 0, -1, 12, -7, 'test', 15, 30, 1)
            self.assertRaises(
                AssertionError, pyson.DateTime,
                2010, 1, 12, 10, 30, 20, 0, -1, 12, -7, 2, 'test', 30, 1)
            self.assertRaises(
                AssertionError, pyson.DateTime,
                2010, 1, 12, 10, 30, 20, 0, -1, 12, -7, 2, 15, 'test', 1)
            self.assertRaises(
                AssertionError, pyson.DateTime,
                2010, 1, 12, 10, 30, 20, 0, -1, 12, -7, 2, 15, 30, 'test')

        self.assertEqual(pyson.DateTime(2010, 1, 12, 10, 30, 20, 0,
            -1, 12, -7, 2, 15, 30, 1).types(), set([datetime.datetime]))

        eval = pyson.PYSONEncoder().encode(pyson.DateTime(2010, 1, 12,
            10, 30, 20, 0))
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.datetime(2010, 1, 12, 10, 30, 20, 0))

        eval = pyson.PYSONEncoder().encode(pyson.DateTime(2010, 1, 12,
            10, 30, 20, 0, -1))
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.datetime(2009, 1, 12, 10, 30, 20, 0))

        eval = pyson.PYSONEncoder().encode(pyson.DateTime(2010, 1, 12,
            10, 30, 20, 0, 0, 12))
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.datetime(2011, 1, 12, 10, 30, 20, 0))

        eval = pyson.PYSONEncoder().encode(pyson.DateTime(2010, 1, 12,
            10, 30, 20, 0, 0, 0, -7))
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.datetime(2010, 1, 5, 10, 30, 20, 0))

        eval = pyson.PYSONEncoder().encode(pyson.DateTime(2010, 1, 12,
            10, 30, 20, 0, 0, 0, 0, 12))
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.datetime(2010, 1, 12, 22, 30, 20, 0))

        eval = pyson.PYSONEncoder().encode(pyson.DateTime(2010, 1, 12,
            10, 30, 20, 0, 0, 0, 0, 0, -30))
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.datetime(2010, 1, 12, 10, 0, 20, 0))

        eval = pyson.PYSONEncoder().encode(pyson.DateTime(2010, 1, 12,
            10, 30, 20, 0, 0, 0, 0, 0, 0, 30))
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.datetime(2010, 1, 12, 10, 30, 50, 0))

        eval = pyson.PYSONEncoder().encode(pyson.DateTime(2010, 1, 12,
            10, 30, 20, 0, 0, 0, 0, 0, 0, 0, 200))
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.datetime(2010, 1, 12, 10, 30, 20, 200))

        eval = pyson.PYSONEncoder().encode(datetime.datetime(
            2010, 2, 22, 10, 30, 20, 200))
        self.assertEqual(pyson.PYSONDecoder().decode(eval),
            datetime.datetime(2010, 2, 22, 10, 30, 20, 200))

        self.assertEqual(repr(pyson.DateTime(2010, 1, 12, 10, 30, 20, 0,
                    -1, 12, -7, 2, 15, 30, 1)),
            'DateTime(2010, 1, 12, 10, 30, 20, 0, -1, 12, -7, 2, 15, 30, 1)')

    def test_Len(self):
        'Test pyson.Len'
        self.assertEqual(pyson.Len([1, 2, 3]).pyson(), {
                '__class__': 'Len',
                'v': [1, 2, 3],
                })

        if not sys.flags.optimize:
            self.assertRaises(AssertionError, pyson.Len, object())

        self.assertEqual(pyson.Len([1, 2, 3]).types(), set([int]))

        eval = pyson.PYSONEncoder().encode(pyson.Len([1, 2, 3]))
        self.assertEqual(pyson.PYSONDecoder().decode(eval), 3)

        eval = pyson.PYSONEncoder().encode(pyson.Len({1: 2, 3: 4}))
        self.assertEqual(pyson.PYSONDecoder().decode(eval), 2)

        eval = pyson.PYSONEncoder().encode(pyson.Len('foo bar'))
        self.assertEqual(pyson.PYSONDecoder().decode(eval), 7)

        self.assertEqual(repr(pyson.Len([1, 2, 3])), 'Len([1, 2, 3])')

    def test_TimeDelta_pyson(self):
        "Test pyson.TimeDelta.pyson"
        self.assertEqual(pyson.TimeDelta(1, 2, 3).pyson(), {
                '__class__': 'TimeDelta',
                'd': 1,
                's': 2,
                'm': 3,
                })

    def test_TimeDelta_types(self):
        "Test pyson.TimeDelta.types"
        self.assertEqual(
            pyson.TimeDelta(seconds=10).types(), {datetime.timedelta})

    @unittest.skipIf(sys.flags.optimize, "assert removed by optimization")
    def test_TimeDelta_invalid_type(self):
        "Test pyson.TimeDelta invalid type"
        with self.assertRaises(AssertionError):
            pyson.TimeDelta('foo')

    def test_TimeDelta_eval(self):
        "Test pyson.TimeDelta.eval"
        eval = pyson.PYSONEncoder().encode(pyson.TimeDelta(1, 2, 3))

        self.assertEqual(
            pyson.PYSONDecoder().decode(eval), datetime.timedelta(1, 2, 3))

    def test_TimeDelta_repr(self):
        "Test pyson.TimeDelta.repr"
        self.assertEqual(
            repr(pyson.TimeDelta(1, 2, 3)), 'TimeDelta(1, 2, 3)')

    def test_Composite(self):
        'Test Composite'
        expr = pyson.If(pyson.Not(
                pyson.In('company', pyson.Eval('context', {}))), '=', '!=')
        eval = pyson.PYSONEncoder().encode(['id', expr,
            pyson.Get(pyson.Eval('context', {}), 'company', -1)])
        self.assertEqual(pyson.PYSONDecoder({'context': {'company': 1}}
            ).decode(eval), ['id', '!=', 1])
        self.assertEqual(pyson.PYSONDecoder({'context': {}}
            ).decode(eval), ['id', '=', -1])

        self.assertEqual(repr(expr),
            "If(Not(In('company', Eval('context', {}))), '=', '!=')")

    def test_noeval(self):
        decoder = pyson.PYSONDecoder(noeval=True)
        encoder = pyson.PYSONEncoder()

        for instance in [
                pyson.Eval('test', 0),
                pyson.Not(True),
                pyson.Bool('test'),
                pyson.And(True, False, True),
                pyson.Or(False, True, True),
                pyson.Equal('foo', 'bar'),
                pyson.Greater(1, 0),
                pyson.Less(0, 1),
                pyson.If(True, 'foo', 'bar'),
                pyson.Get({'foo': 'bar'}, 'foo', 'default'),
                pyson.In('foo', ['foo', 'bar']),
                pyson.Date(),
                pyson.DateTime(),
                pyson.Len([1, 2, 3]),
                ]:
            self.assertEqual(decoder.decode(encoder.encode(instance)).pyson(),
                instance.pyson())


def suite():
    return unittest.TestLoader().loadTestsFromTestCase(PYSONTestCase)
