Robotframework 入门教程（七）

== Custom Library==

终于到了重点了，自定义Library。自定义Library可以用实Python模块和python或java的类来实现。简单写一个python模块实现的

新建mylib.py内含一个md5签名算法函数：

import hashlib

def gen_sign(*args):
    m = hashlib.md5()
    m.update(''.join(args))
    return m.hexdigest()

修改demo.robot如下：

*** Settings ***
Documentation     Example test cases using the keyword-driven testing approach.
Resource          pub.txt
Library           Collections
Library mylib.py

*** Test Cases ***
First Case
    [Documentation]    variable type
    Log to console    ${var1}
    Log to console    ${list1}[0]
    Log to console    ${list1[0]}
    Log to console    ${dict1}['key1']
    Log to console    ${dict1['key1']}
    Log to console    ${dict1.key1}

Second Case
    [Documentation]    Default values with user-keywords
    Calculate and Check Equals
    Calculate and Check Equals    1+5
    Calculate and Check Equals    7-2    ${5}
    Calculate and Check Equals    expression=6+3    expected=${9}

Third Case
    [Documentation]    Varargs with user-keywords
    Varargs keyword    a    f    ${var1}
    Varargs keyword    @{list1}    ${var1}
    Kwargs keyword    key1=value1    key2=789
    Kwargs keyword    &{dict1}
    Kwargs keyword    &{dict1}    mykey=tututu    &{dict1}

Fourth Case
    [Documentation]    data-driven case
    [Template]    Calculate "${expression}" and Check Equals "${expected}"
    2+4    ${6}
    9-2    ${7}
    6*4    ${24}

Fifth Case
    [Documentation]    builtIn library
    [Template]    Calculate "${expression}" and Check Equals "${expected}"
    2+4    ${6}
    9-2    ${7}
    6*4    ${24}

Sixth Case
    [Documentation]    custome keyword
    ${sign}    gen_sign    @{list1}
    Log to console    ${sign}

传入计算1234的md5并返回打印到console，结果如下：


多个关键字有隐式联系的时候要用到基于类的关键字。新建yourLib.py：

class yourLib(object):
    def __init__(self, member=None):
        self.members = [member] if member else []

    def add_member(self, name):
        self.members.append(name)
        return self.members

修改demo.robot如下：

*** Settings ***
Documentation     Example test cases using the keyword-driven testing approach.
Resource          pub.txt
Library           Collections
Library mylib.py Library yourLib.py ...... ...... 
Sixth Case
    [Documentation]    custome keyword
    ${sign}    gen_sign    @{list1}
    Log to console    ${sign}
    ${members} add member ${var1} Log to console ${members} ${members} add member LLisisi Log to console ${members}

执行结果如下：


基于类的自定义Library，引入的时候创建了一个该类的实例，调用关键字可以改变实例的属性和状态。