def test_rectangle():
p = make_decart_point(-4, 3)
rectangle1 = make_rectangle(p, 5, 4)
assert contains_origin(rectangle1)
rectangle2 = make_rectangle(p, 5, 2)
assert not contains_origin(rectangle2)
rectangle3 = make_rectangle(p, 2, 2)
assert not contains_origin(rectangle3)
rectangle4 = make_rectangle(p, 4, 3)
assert not contains_origin(rectangle4)
def get_left_down_point(rectangle):
x = get_x(get_start_point(rectangle))
y = get_y(get_start_point(rectangle)) - get_heigth(rectangle)
return make_decart_point(x, y)
def get_right_down_point(rectangle):
x = get_x(get_start_point(rectangle)) + get_width(rectangle)
y = get_y(get_start_point(rectangle)) - get_heigth(rectangle)
return make_decart_point(x, y)
def get_right_up_point(rectangle):
x = get_x(get_start_point(rectangle)) + get_width(rectangle)
y = get_y(get_start_point(rectangle))
return make_decart_point(x, y)
def get_mid_point_of_segment(segment):
x1 = get_x(segment['begin_segment'])
x2 = get_x(segment['end_segment'])
y1 = get_y(segment['begin_segment'])
y2 = get_y(segment['end_segment'])
return make_decart_point((x1 + x2) / 2, (y1 + y2) / 2)
def test_segments():
segment1 = make_segment(make_decart_point(3, 2), make_decart_point(0, 0))
assert make_decart_point(1.5, 1) == get_mid_point_of_segment(segment1)
segment2 = make_segment(make_decart_point(3, 2), make_decart_point(2, 3))
assert make_decart_point(2.5, 2.5) == get_mid_point_of_segment(segment2)
def test_cross_zero():
point = make_decart_point(0, 1)
rectangle = make_rectangle(point, 4, 5)
assert not contains_origin(rectangle)