Question

我正在尝试编写Selenium Library扩展以减轻一些负担，但是我碰壁了。这是我的python类：

    import uuid
    import time
    import re
    from robot.api.deco import keyword
    from robot.libraries.BuiltIn import BuiltIn
    from SeleniumLibrary import SeleniumLibrary

    class MySeleniumLibrary(SeleniumLibrary):
            # def __init__(self):
            #         BuiltIn().set_library_search_order(self, "SeleniumLibrary")

            @keyword('Select Checkbox')
            def select_checkbox(self, locator):
                    self.wait_until_page_contains_element(locator)
                    elementId = self.get_element_attribute(locator,"id")
                    if elementId=='':
                            elementId = uuid.uuid4()
                            self.assign_id_to_element(locator, elementId)
                    self.execute_javascript('$("#' + elementId + ':not(:checked)").click();')

运行测试时，它在构建库时会抱怨：

Creating keyword 'Select Checkbox' failed: Keyword with same name defined multiple times.

然后尝试选择该复选框时它最终失败：

Keyword with same name defined multiple times.

在“设置”部分中仅引用了mySeleniumLibrary.py。我也尝试设置库搜索顺序，但是没有用。您有任何想法如何实现这一目标吗？

谢谢！

Answer 1

实际上，我找到了一个解决方案，该方案如何覆盖SeleniumLibary的继承方法。技巧是在@keyword行上删除特定的关键字名称。现在是这样的：

    import uuid
    import time
    import re
    from robot.libraries.BuiltIn import BuiltIn
    from SeleniumLibrary.base import keyword
    from SeleniumLibrary import SeleniumLibrary

    class MySeleniumLibrary(SeleniumLibrary):

            def get_unique_element_id(self, locator):
                    self.wait_until_page_contains_element(locator)
                    elementId = self.get_element_attribute(locator,"id")
                    if elementId=='':
                            elementId = uuid.uuid4()
                            self.assign_id_to_element(locator, elementId)
                    return elementId

            @keyword
            def select_checkbox(self, locator):
                    elementId = self.get_unique_element_id(locator)
                    self.execute_javascript('$("#' + elementId + ':not(:checked)").click();')

=>现在我调用Select Checkbox关键字时，将调用我的方法，而不是原始的SeleniumLibrary方法。

Answer 2

您正在导入from SeleniumLibrary import SeleniumLibrary。

其中包含Select Checkbox的关键字，这就是您获得的原因：

Creating keyword 'Select Checkbox' failed: Keyword with same name defined multiple times.

您只需更改关键字的名称

import uuid
import time
import re
from robot.api.deco import keyword
from robot.libraries.BuiltIn import BuiltIn
from SeleniumLibrary import SeleniumLibrary


class MySeleniumLibrary(SeleniumLibrary):
    # def __init__(self):
    #         BuiltIn().set_library_search_order(self, "SeleniumLibrary")

    @keyword('Select Checkbox Custom')
    def some_name(self, locator):
        self.wait_until_page_contains_element(locator)
        elementId = self.get_element_attribute(locator, "id")
        if elementId == '':
            elementId = uuid.uuid4()
            self.assign_id_to_element(locator, elementId)
        self.execute_javascript('$("#' + elementId + ':not(:checked)").click();')

然后您的机器人框架测试应该类似于

*** Settings ***
Library  MySeleniumLibrary.py

*** Test Cases ***
Test Keyword
   Open Browser  hyyp://google.com  chrome
   Select Checkbox Custom  xpath=SomeKidOFXPATHVALUE

这将按预期工作。请注意Open Browser关键字的工作原理，即使我没有在设置中仅引用python脚本的设置中也引用了SeleniumLibrary。

有关哪种方法被视为关键字的更多信息，请查看此1

SeleniumLib扩展名抛出重复的关键字名称错误

2 个答案: