"""
    file: test_server.py

    adds server functionality-tests for pytest

    date: 11.07.2019
"""
import pytest


def test_ping(server):
    assert server.ping(server, "tolsun.oulu.fi") == "PONG"


@pytest.mark.parametrize("test_input,expected", [("password", True), ("wrong password", False)])
def test_command_pass(server, test_input, expected):
    server.password = "password"
    assert server.command_pass(server, test_input) == expected


def create_user_dict():
    user_dict = dict()
    user_id = "user"
    for i in range(0, 9):
        user_dict[(user_id + str(i))] = dict()

    return user_dict


@pytest.mark.parametrize("user_dict, user_to_change, nickname, expected_result",
                         [
                             (create_user_dict(), "user2", "wayne", True),
                             (create_user_dict(), "user2", "user4", True),
                             (create_user_dict(), "user2", "christoph", True),
                             (create_user_dict(), "user2", "user19", True),
                             ({"WiZ": {}}, "WiZ", "Kilroy", True)])
def test_change_nickname(server, user_dict, user_to_change, nickname, expected_result):
    server.user_dict = user_dict.copy()
    assert server.command_nickname(server, user_to_change, nickname) == expected_result
    assert user_to_change not in server.user_dict
    if nickname in user_dict:
        assert nickname not in server.user_dict, nickname + " should have been deleted due to name collision"