testRemaining{5, 5},
			testRead{5, "hello", io.EOF},
			testRemaining{0, 0},
		},
	}, {
		maker: makeReg{"hello, world", 50},
		tests: []testFnc{
			testRemaining{50, 50},
			testRead{7, "hello, ", nil},
			testRemaining{43, 43},
			testRead{5, "world", nil},
			testRemaining{38, 38},
			testWriteTo{nil, 0, io.ErrUnexpectedEOF},
			testRead{1, "", io.ErrUnexpectedEOF},

    response = client.request("DELETE", "/items/foo", json={"name": "Foo"})
    assert response.status_code == 200, response.text
    assert response.json() == {"item_id": "foo", "item": {"name": "Foo", "price": None}}


def test_head():
    response = client.head("/items/foo")
    assert response.status_code == 200, response.text
    assert response.headers["x-fastapi-item-id"] == "foo"


def test_options():