dhilst

/*
 * file: gkos_char_device.c
 *
 * Desc: A simple device that
 *      echos a message when read,
 *      write method not implemented
 *
 *      This was made on top of 
 *      LDD and LKMPG examples 
 *      

1f0

import numpy as np
import cv2

cap = cv2.VideoCapture('rtmp://localhost/live/stream')

while(True):
    # Capture frame-by-frame
    ret, frame = cap.read()

    # Our operations on the frame come here

zobayer1

Using pytest.mark.parametrize with other fixtures

Introduction

When you want to run tests against multiple test parameters, but you have to use other pytest.fixture objects, you can use pytest.mark.parametrize with indirect parameter to target a fixture for extracting request.param from parametrize list.

Example

sadra-barikbin

In this tutorial we're going to follow the execution flow of pytest to see how it does work. Pytest is highly extendable to the extent that not only its plugins but also its core functionalities are implemented as plugins. Generally, A program and its plugins work in the way that program starts and at some specific steps of its execution, it gives control to the plugins. Those specific steps are called hooks. The program has a registered list of plugins that once program reaches a hook, their corresponding hook implementations are called in a specific order.

For its plugin system, pytest relies on Pluggy. As per Pluggy, program should hold an instance of PluginManager which is in charge of keeping hook specifications, registering plugins and calling them. Program declares its hooks specification and adds it to the plugin manager. Then plugins can register themselves to the plugin manager.

When a hook is called, its implementations are called in LIFO order, the later