# mode: run

# tag: cpp, werror, cpp11

# distutils: extra_compile_args=-std=c++0x

import sys

from libcpp.unordered_map cimport unordered_map

from libcpp.pair cimport pair

def test_unordered_map_functionality():

    """

    >>> test_unordered_map_functionality()

    'pass'

    """

    cdef:

        unordered_map[int, int] int_map = unordered_map[int,int]()

        pair[int, int] pair_insert = pair[int, int](1, 2)

        unordered_map[int,int].iterator iterator = int_map.begin()

        pair[unordered_map[int,int].iterator, bint] pair_iter  = int_map.insert(pair_insert)

    assert int_map[1] == 2

    assert int_map.size() == 1

    assert int_map.erase(1) == 1 # returns number of elements erased

    assert int_map.size() == 0

    int_map[1] = 2

    assert int_map.size() == 1

    assert int_map[1] == 2

    iterator = int_map.find(1)

    assert int_map.erase(iterator) == int_map.end()

    return "pass"