Nightwatch.js不能将字符串变量设置为输入字段? [英] Nightwatch.js cannot set a string variable to an input field?
问题描述
我正在用Nightwatch.js测试一些JavaScript代码。我想从输入标签读取一个值,将其增加或减少1,然后将其写回输入标签。因此我编写了这段代码:
.getValue('#inputConfigReading',function(result){
val = parseInt (result.value);
if(val%2 == 0)
val ++;
else
val--;
val = val +'';
$ b .clearValue('#inputConfigReading')
.setValue('#inputConfigReading',val)
我检查了一下。变量 val
在命令 val = val +'';
之后具有正确的值。但无论如何,当我运行代码Nightwatch将 undefined
写入输入字段时。为什么?
Nightwatch正在执行 val
之前的最后两个步骤定义。
最后两步应该在 .getValue
的回调函数中:
< $ c $ .getValue('#inputConfigReading',function(result){
val = parseInt(result.value);
if(val%2 == 0)
val ++;
else
val--;
val = val +'';
browser.clearValue('#inputConfigReading')
browser.setValue('#inputConfigReading',val )
})
I am testing some JavaScript code with Nightwatch.js. I want to read a value from an input tag, increase or decrease it by 1 and then write it back to the input tag. Therefore I wrote this code:
.getValue('#inputConfigReading', function(result){
val = parseInt(result.value);
if (val % 2 == 0)
val++;
else
val--;
val = val+'';
})
.clearValue('#inputConfigReading')
.setValue('#inputConfigReading', val)
I checked it out. The variable val
has the correct value after the command val = val+'';
. But anyway when I run the code Nightwatch is writing undefined
into the input field. Why?
Nightwatch is executing those last two steps before val
is defined.
Those last two steps should be inside the callback function of .getValue
:
.getValue('#inputConfigReading', function(result){
val = parseInt(result.value);
if (val % 2 == 0)
val++;
else
val--;
val = val+'';
browser.clearValue('#inputConfigReading')
browser.setValue('#inputConfigReading', val)
})
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