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如何使用pytest在paramiko SSHClient()中模拟“连接”

在使用pytest模拟"连接"的过程中,可以通过使用pytest-mock库来模拟paramiko SSHClient()的连接。pytest-mock是pytest的一个插件,它提供了一些方便的功能来模拟和替代函数、方法和对象。

下面是一个使用pytest-mock来模拟paramiko SSHClient()连接的示例:

  1. 首先,安装pytest-mock库:
代码语言:txt
复制
pip install pytest-mock
  1. 创建一个测试文件,例如test_ssh_client.py,并导入所需的模块和函数:
代码语言:txt
复制
import pytest
from paramiko import SSHClient

# 导入要测试的函数
from your_module import connect_ssh

# 创建一个测试用例
def test_connect_ssh(mocker):
    # 使用pytest-mock的mocker对象来模拟SSHClient()的连接
    mocker.patch.object(SSHClient, 'connect')

    # 调用要测试的函数
    connect_ssh()

    # 断言SSHClient().connect()被调用
    SSHClient.connect.assert_called_once()

在上面的示例中,我们使用pytest-mock的mocker对象来模拟SSHClient()的connect()方法。然后,我们调用要测试的函数connect_ssh(),并使用assert_called_once()断言SSHClient().connect()方法被调用一次。

这样,我们就可以使用pytest和pytest-mock来模拟paramiko SSHClient()的连接了。

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