import pygame as pg
import pytest
from ship import Ship

def test_ship_constructor():
    scr_rect = pg.Rect(0,0,100,100)
    a_ship = Ship((10+Ship.SIZE/2, 20+Ship.SIZE/2), scr_rect)
    assert a_ship.rect.centerx == scr_rect.centerx
    assert a_ship.rect.centery == scr_rect.centery
    assert a_ship.map_rect.left == 10+1
    assert a_ship.map_rect.top == 20+1