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#
# This file is part of pyasn1 software.
#
# Copyright (c) 2005-2019, Ilya Etingof <etingof@gmail.com>
# License: http://snmplabs.com/pyasn1/license.html
#
import sys

try:
    import unittest2 as unittest

except ImportError:
    import unittest

from tests.base import BaseTestCase

from pyasn1.type import namedtype
from pyasn1.type import univ
from pyasn1.error import PyAsn1Error


class NamedTypeCaseBase(BaseTestCase):
    def setUp(self):
        BaseTestCase.setUp(self)
        self.e = namedtype.NamedType('age', univ.Integer(0))

    def testIter(self):
        n, t = self.e
        assert n == 'age' or t == univ.Integer(), 'unpack fails'

    def testRepr(self):
        assert 'age' in repr(self.e)


class NamedTypesCaseBase(BaseTestCase):
    def setUp(self):
        BaseTestCase.setUp(self)

        self.e = namedtype.NamedTypes(
            namedtype.NamedType('first-name', univ.OctetString('')),
            namedtype.OptionalNamedType('age', univ.Integer(0)),
            namedtype.NamedType('family-name', univ.OctetString(''))
        )

    def testRepr(self):
        assert 'first-name' in repr(self.e)

    def testContains(self):
        assert 'first-name' in self.e
        assert '<missing>' not in self.e

    # noinspection PyUnusedLocal
    def testGetItem(self):
        assert self.e[0] == namedtype.NamedType('first-name', univ.OctetString(''))

    def testIter(self):
        assert list(self.e) == ['first-name', 'age', 'family-name']

    def testGetTypeByPosition(self):
        assert self.e.getTypeByPosition(0) == univ.OctetString(''), \
            'getTypeByPosition() fails'

    def testGetNameByPosition(self):
        assert self.e.getNameByPosition(0) == 'first-name', \
            'getNameByPosition() fails'

    def testGetPositionByName(self):
        assert self.e.getPositionByName('first-name') == 0, \
            'getPositionByName() fails'

    def testGetTypesNearPosition(self):
        assert self.e.getTagMapNearPosition(0).presentTypes == {
            univ.OctetString.tagSet: univ.OctetString('')
        }
        assert self.e.getTagMapNearPosition(1).presentTypes == {
            univ.Integer.tagSet: univ.Integer(0),
            univ.OctetString.tagSet: univ.OctetString('')
        }
        assert self.e.getTagMapNearPosition(2).presentTypes == {
            univ.OctetString.tagSet: univ.OctetString('')
        }

    def testGetTagMap(self):
        assert self.e.tagMap.presentTypes == {
            univ.OctetString.tagSet: univ.OctetString(''),
            univ.Integer.tagSet: univ.Integer(0)
        }

    def testStrTagMap(self):
        assert 'TagMap' in str(self.e.tagMap)
        assert 'OctetString' in str(self.e.tagMap)
        assert 'Integer' in str(self.e.tagMap)

    def testReprTagMap(self):
        assert 'TagMap' in repr(self.e.tagMap)
        assert 'OctetString' in repr(self.e.tagMap)
        assert 'Integer' in repr(self.e.tagMap)

    def testGetTagMapWithDups(self):
        try:
            self.e.tagMapUnique[0]
        except PyAsn1Error:
            pass
        else:
            assert 0, 'Duped types not noticed'

    def testGetPositionNearType(self):
        assert self.e.getPositionNearType(univ.OctetString.tagSet, 0) == 0
        assert self.e.getPositionNearType(univ.Integer.tagSet, 1) == 1
        assert self.e.getPositionNearType(univ.OctetString.tagSet, 2) == 2


class OrderedNamedTypesCaseBase(BaseTestCase):
    def setUp(self):
        BaseTestCase.setUp(self)

        self.e = namedtype.NamedTypes(
            namedtype.NamedType('first-name', univ.OctetString('')),
            namedtype.NamedType('age', univ.Integer(0))
        )

    def testGetTypeByPosition(self):
        assert self.e.getTypeByPosition(0) == univ.OctetString(''), \
            'getTypeByPosition() fails'


class DuplicateNamedTypesCaseBase(BaseTestCase):
    def testDuplicateDefaultTags(self):
        nt = namedtype.NamedTypes(
            namedtype.NamedType('first-name', univ.Any()),
            namedtype.NamedType('age', univ.Any())
        )

        assert isinstance(nt.tagMap, namedtype.NamedTypes.PostponedError)


suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])

if __name__ == '__main__':
    unittest.TextTestRunner(verbosity=2).run(suite)