Locust中wait_time中匿名函数使用方法浅析

前言

翻出之前做个压测项，看到locust中对等待时间的实现方式感到好奇，于是总结下来。

源代码实现

def between(min_wait, max_wait):
    """
    Returns a function that will return a random number between min_wait and max_wait.

    Example::

        class MyUser(User):
            # wait between 3.0 and 10.5 seconds after each task
            wait_time = between(3.0, 10.5)
    """
    return lambda instance: min_wait + random.random() * (max_wait - min_wait)


def constant(wait_time):
    """
    Returns a function that just returns the number specified by t