Question

我正在尝试使用机器人框架建立与远程计算机的SSH连接并执行一些命令。但是我收到错误说ChannelException：（4，＆＃39;资源短缺＆＃39;）我不知道这意味着什么。

Script: test.robot
*** Settings ***
Library    SSHLibrary
Suite Setup    open_connection_and_login
Suite Teardown    Close All Connections

*** Variables ***
${HOST}    login
${USERNAME}    root
${PASSWORD}    password

*** Test Cases ***
available_disk_on_remote
    ${output}=    Execute Command  df -h
    Log To Console    "${output}"

*** Keywords ***
open_connection_and_login
    Open Connection    ${HOST}
    Login  ${USERNAME}    ${PASSWORD}   4

Output:
[root@machine1 Robot]# robot test.robot
===========================================================================
Test
======================================================================
available_disk_on_remote                                             | FAIL |
ChannelException: (4, 'Resource shortage')
--------------------------------------------------------------------------
Test                                                                 | FAIL |
1 critical test, 0 passed, 1 failed
1 test total, 0 passed, 1 failed
=========================================================================
Output:  /root/Robot/output.xml
Log:     /root/Robot/log.html
Report:  /root/Robot/report.html

Python 2.7.5和Robot Framework 3.0.2 （仅供参考，机器人框架新手）

Answer 1

您必须使用Run和Return RC以及OperatingSystem库的输出来实现此目的。请在下面找到工作代码。

*** Settings ***
Library                OperatingSystem

*** Test Cases ***
 Check disk usage
    ${rc}      ${output} =     Run And Return Rc And Output     df -h
    Should Be Equal As Integers        ${rc}           0
    Log to console      ${output}

这将为您提供以下输出

[root@scripts]# pybot  diskusage.robot
==============================================================================
Diskusage                                                                     
==============================================================================
Check disk usage                                                      ..Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg_tv274-lv_root
                       47G   20G   25G  44% /
tmpfs                 4.9G   84K  4.9G   1% /dev/shm
/dev/sda1             485M   38M  423M   9% /boot
/dev/mapper/vg_tv274-lv_home
                      4.6G  138M  4.2G   4% /home
/dev/sr0              658M  658M     0 100% /media/Ubuntu-Server 12.04.1 LTS amd64
Check disk usage                                                      | PASS |
------------------------------------------------------------------------------
Diskusage                                                             | PASS |
1 critical test, 1 passed, 0 failed
1 test total, 1 passed, 0 failed
==============================================================================

Answer 2

Sshlibrary用于连接SSH客户端
要在命令提示符下安装sshlibrary execute命令
- pip安装robotframework-sshlibrary
在机器人框架中导入sshlibrary
示例机器人框架代码以连接ssh并从服务器下载文件。

打开连接$ {Host}
登录$ {用户名} $ {pwd}
sshLibrary.Directory应该存在/ ug05 / abc / src / rpa $ {XML_FILE} sshlibrary。获取文件/ug05/abc/src/rpa/*.xml
关闭连接

使用机器人框架在远程机器上建立SSH连接：通道异常;（4，资源短缺＆＃34;）

2 个答案: