def test_roper():
vector = Vector(2, 3, 4)
assert 1 + vector == Vector(3, 4, 5)
assert 1 - vector == Vector(-1, -2, -3)
assert 1 * vector == Vector(2, 3, 4)
def test_diff_dim():
with pytest.raises(TypeError):
Vector(2, 7) - Vector(4, 5, 6, 8)
def test_notequal_notvec():
assert Vector(4, 2) != -2
def test_sum_symbol():
with pytest.raises(TypeError):
'1' + Vector(2, 3, 4, 5)
def __add__(self, other):
try:
pairs = itertools.zip_longest(self, other, fillvalue=0.0)
return Vector(a + b for a, b in pairs)
except TypeError:
return NotImplemented
def __add__(self, other):
# pairs 是个生成器，它会生成 (a, b) 形式的元组,a 来自 self，b 来自 other。
# 如果 self 和 other 的长度不同，使用 fillvalue 填充较短的那个可迭代对象
pairs = itertools.zip_longest(self, other, fillvalue=0.0)
# __add__ 返回一个新 Vector 实例
return Vector(a + b for a, b in pairs)
def test_mul_vec():
first = Vector(7, 5, 9, 6)
second = Vector(4, -5, 3, 10)
assert first * second == 90
def test_index_value():
vector = Vector(2, 1, 2)
vector[0] = 10
assert vector == Vector(10, 1, 2)
def test_mul_const():
vector = Vector(8, 3, 1)
assert vector * 5 == Vector(40, 15, 5)
def test_incorrect_init():
with pytest.raises(ValueError):
Vector([1, 2, 'a'])
def test_sub():
first = Vector(3, 2, 1, 10)
second = Vector(5, 2, 10, 7)
assert first - second == Vector(-2, 0, -9, 3)
def test_scal_addition():
assert Vector(2, 9) + 10 == Vector(12, 19)
def test_addition():
first = Vector(3, 2, 1)
second = Vector(-30, 5, 2)
assert first + second == Vector(-27, 7, 3)
def test_index_out():
with pytest.raises(IndexError):
vector = Vector(4, 6, 7, 8)
vector[10]
def test_index():
vector = Vector(2, 5, -10, 5)
assert vector[2] == -10
def test_equal():
assert Vector(-1, 5, 2, 10) == Vector(-1, 5, 2, 10)
def test_string():
vector = Vector(-1, 5, 6)
assert str(vector) == "(-1; 5; 6)"
def test_index_out():
with pytest.raises(ValueError):
vector = Vector(4, 6, 7, 8)
vector[1] = 'a'
def test_dimension():
vector = Vector(-4, -1, 0)
assert len(vector) == 3
def __mul__(self, scalar):
# 显式检查抽象类型
if isinstance(scalar, numbers.Real):
return Vector(n * scalar for n in self)
else:
return NotImplemented
def test_norm():
vector = Vector(2, 4, 6, 2, 2)
assert vector.get_norm() == 8
def run(vector_instance: Vector,
server_class=VectorHTTPServer,
handler_class=HandlerClass):
server_address = ('127.0.0.1', 8000)
httpd = server_class(vector_instance, server_address, handler_class)
httpd.serve_forever()
if __name__ == "__main__":
print('Starting server...')
try:
vector = Vector()
start_server_thread = Thread(target=run, args=[vector])
open_browser_thread = Thread(target=open_new,
args=['http://127.0.0.1:8000'])
start_server_thread.start()
open_browser_thread.start()
print('\nPress ctrl + c twice to exit')
start_server_thread.join()
#run(vector)
except KeyboardInterrupt:
pass
print('\nDisconnecting...')
vector.disconnect()
def test_notequal_vec():
assert Vector(2, 4, 6) != Vector(4, -3, 10)