带有变量赋值的机器人框架中的 IF ELSE

Question

我需要在机器人框架中有条件地执行一些关键字，但我不知道该怎么做，它不起作用。 我尝试了很多选择，但我想我的“IF-ELSE”语句完全错误..

Choose Particular Filter ${FILTER} And Uncheck All Values
    ${bool}=   is filter opened   ${AVAILABLE FILTERS}   ${FILTER}
    ${uncheck_all_button}=    run keyword  if    "${bool}" == "True"   uncheck all in filter  ${AVAILABLE FILTERS}   ${FILTER}
    ...                       click element   ${uncheck_all_button}
    ...                       ELSE
    ...                       Set variable    ${particular_filter}:    find particular filter   ${AVAILABLE FILTERS}  ${FILTER}
    ...                       click element   ${particular_filter}
    ...                       Set variable    ${uncheck_all_button}:   uncheck all in filter  ${AVAILABLE FILTERS}   ${FILTER}
    ...                       click element   ${uncheck_all_button}

它失败了： Variable '${particular_filter}' not found. 但是，如果我运行它，它甚至不应该转到 ELSE 分支，因为 ${bool} 是 True...我的自定义函数is filter opened只是检查过滤器是否已经打开 - 如果是，则返回 True。 我的自定义函数uncheck all in filter只返回“uncheck all”按钮的 XPATH。 我的自定义函数find particular filter返回“过滤器下拉”按钮的 XPATH。 在整个关键字中，我需要检查过滤器下拉列表是否已经打开 - 如果是，那么我必须直接点击${uncheck_all_button} ，否则如果过滤器下拉列表尚未打开，我需要先点击过滤器本身${particular_filter}然后我可以点击${uncheck_all_button}

我也试过“运行关键字”行是这样的：

${uncheck_all_button}=    run keyword  if    "${bool}" == "True"    Set Variable    uncheck all in filter    ${AVAILABLE FILTERS}    ${FILTER}

或这个：

run keyword  if    "${bool}" == "True"   ${uncheck_all_button}=    uncheck all in filter    ${AVAILABLE FILTERS}    ${FILTER}

我也试过${bool} == "True"和${bool} == True

但是没有任何效果，仍然是同样的错误:(

非常感谢您的帮助！

Answer 1

在每个块中使用带有多个语句的 IF/THEN/ELSE 在 Robot 中不起作用（或者我想你必须使用“运行关键字”，但这会变得不可读）。 所以我会这样重构你的代码：

Choose Particular Filter ${FILTER} And Uncheck All Values
    ${is_filter_opened}=   is filter opened   ${AVAILABLE FILTERS}   ${FILTER}
    run keyword  if    ${is_filter_opened}    actions_when_unchecked
    ...                ELSE  actions_when_checked

actions_when_unchecked
    uncheck all in filter  ${AVAILABLE FILTERS}   ${FILTER}
    click element   ${uncheck_all_button}

actions_when_checked    
    ${particular_filter}:    find particular filter   ${AVAILABLE FILTERS}  ${FILTER}
    click element   ${particular_filter}
    ${uncheck_all_button}:   uncheck all in filter  ${AVAILABLE FILTERS}   ${FILTER}
    click element   ${uncheck_all_button}   

希望这可以帮助。

Answer 2

根据以下语法，更新您的代码并检查它。

IF-ELSE 的语法：

   Run Keyword If    '${Condition}'== 'True'    Run Keywords    <Keyword 1>     <Keyword 2>
   ...    ELSE    <Keyword 1>

基于条件的“设置变量”的语法：

 ${Status}=    Run Keyword If    '${Condition}'== 'True'    Set Variable    <Yes>    <No>

根据您在 IF 部分中的代码，

如果“bool=true”，它只会执行自定义关键字“uncheck all in filter”而不是“Click element”关键字。 如果您希望根据条件执行这两个关键字，请使用 IF-ELSE 语法中提到的“运行关键字”关键字。

Answer 3

非常感谢您，劳伦特，您的解决方案是正确的！ 我只需要做一些小的更改即可使其正常工作：

Choose Particular Filter ${FILTER} And Uncheck All Values
${is_filter_opened}=   is filter opened   ${AVAILABLE FILTERS}   ${FILTER}
run keyword if      ${is_filter_opened}    actions_when_unchecked ${FILTER}
...                ELSE  actions_when_checked ${FILTER}

actions_when_unchecked ${FILTER}
${uncheck_all_button}=  uncheck all in filter  ${AVAILABLE FILTERS}   ${FILTER}
click element   ${uncheck_all_button}

actions_when_checked ${FILTER}
${particular_filter}=    find particular filter   ${AVAILABLE FILTERS}  ${FILTER}
click element   ${particular_filter}
${uncheck_all_button}=   uncheck all in filter  ${AVAILABLE FILTERS}   ${FILTER}
click element   ${uncheck_all_button}

Answer 4

${error_status} Set Variable    False       
log ${error_status}         
Run Keyword If  ${error_status} calltrue    ELSE    login_sucessful

calltrue and login_sucessful are keywords it can be any keyword of your choice. so in this case login_sucessful  keyword is executed. if error_status is set to true then calltrue function will get executed.

请注意缩进单个空格会弄乱您的执行流程

Answer 5

从以上4个版本开始，IF-Else内部支持赋值的机器人框架参考： https : //robocorp.com/docs/languages-and-frameworks/robot-framework/conditional-execution

IF    ${random} == ${NUMBER_TO_PASS_ON}
${var} = set variable 10
ELSE IF    ${random} > ${NUMBER_TO_PASS_ON}
${var} = set variable ${random}
ELSE
${var} = set variable ${NUMBER_TO_PASS_ON}
END