我正在尝试为网站的消息传递功能编写一个测试。 在这个测试中,我使用了一个关键字,它应该遍历一个用户列表,找到每个用户的聊天窗口,然后导入一个用Python编写的自定义库,该库保存测试的通过/失败逻辑。自定义库应将消息发送者的订阅类型、接收消息的用户的订阅类型以及初始发送的消息作为参数
测试用例如下所示:
*** Settings ***
Variables ../resources/usersToMessage.py
Variables ../resources/messageSenders.py
Resource ../chatTests/chatTests.resource
*** Test Cases ***
DemoTest
[Documentation] send messages to other users
[tags] demo
[Template] Log in as user and send messages
FOR ${user} IN @{messageSenders}
${user}
END
*** Keywords ***
Log in as user and send messages
[Arguments] ${testcase}
Send Messages
Send Messages
${randomString}= generate string
Set Global Variable ${SENT_MESSAGE} ${randomString}
${arguments}= Create List LogMany conversationBox ${randomString}
Locate Conversations ${arguments} @{usersToMessage}
Locate Conversations
[Arguments] ${arguments} @{users}
FOR ${user} IN @{users}
Log Many ${user} @{arguments}
Log ${user}[username]
Import Library Services.ChatTestCase BASIC ${user}[subscription] ${SENT_MESSAGE}
${expected_chat_message}= expected chat message
Log Many the current user subscription is ${user}[subscription] the expected chat message is ${expected_chat_message}
Log /messages/${user}[userid]
Log ${HOMEPAGE}${messages}${user}[userid]
Run Keyword @{arguments}
END
Send
[Arguments] ${message}
Log The random message is ${message}
ChatterStCase库如下所示:
class ChatTestCase:
ROBOT_LIBRARY_SCOPE = "TEST"
unlimited_messaging_subscriptions = ("VIP","PREMIUMPLUS","PLATINUM","GOLD")
def __init__(self, subscription_of_sender, subscription_of_receiver, sent_message):
self.subscription_of_sender=subscription_of_sender.upper()
self.subscription_of_receiver=subscription_of_receiver.upper()
self.sent_message=sent_message
self.should_deliver_message = True
self.count = 0
def expected_chat_message(self):
self.count+=1
print(f'no of expected_chat_message method passes is {self.count}')
#print(f'value of variable should_deliver_message is {self.should_deliver_message}')
if self.subscription_of_sender == "BASIC" and self.subscription_of_receiver not in self.unlimited_messaging_subscriptions:
self.should_deliver_message = False
elif self.subscription_of_receiver == "BASIC" and self.subscription_of_sender not in self.unlimited_messaging_subscriptions:
self.should_deliver_message = False
if self.should_deliver_message:
print(f'value of variable should_deliver_message is {self.should_deliver_message}')
return self.sent_message
else:
print(f'value of variable should_deliver_message is {self.should_deliver_message}')
self.should_deliver_message = True
return "CONTACT+"
问题在于,Import Library关键字似乎只在第一次迭代中实例化了chattercase类一次。在Robot框架文档中,它表示如果一个库使用不同的参数多次导入,它将为for循环中的每个迭代实例化该类
我尝试用一个虚拟库替换正在导入的自定义库,同样的情况也发生了
有人知道是否有任何方法可以从FOR循环内部动态导入自定义库吗
您确定应该多次实例化它吗?关键字^{} 没有提到类似的内容。您已经在library scope下的用户指南中阅读了它,但这并不意味着它甚至适用于关键字
我找到了这个解决方案,我觉得这个解决方案很笨拙,但它的工作原理与您预期的一样,即在运行时在for循环中创建一个库的多个实例
我的示例库:
测试用例:
输出为:
这与在for循环的每次迭代中
self.count
都递增的情况不同这里的关键是我为每个实例指定不同的名称(
${name}
),并从上次创建的实例开始搜索关键字Log Params
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