Karate UI - javascript error: Unexpected token

[ravikiranbsl]

Hi @ptrthomas Using Karate UI: Getting Below error While clicking or mouse-clicking on an element. When I try to locate the xpath in the application, it's pointing to the expected element. but when I try to execute, I'm getting the below error. Could you please suggest how to fix this type of exceptions?

And click("(//button[@aria-label='Continue'])[last()]")

or 

And mouse("(//button[@aria-label='Continue'])[last()]").click()

Error: com.intuit.karate - http response code: 500, response: {"value":{"error":"javascript error","message":"javascript error: Unexpected token '}'

[ptrthomas]

at the very least kindly provide a way to replicate

anyway, I think using locators with parantheses and the use of last() has some subtle bugs. see if you can use pure css locators and the concept of "tree walking" in the meantime as a workaround: https://github.com/karatelabs/karate/tree/master/karate-core#tree-walking

to reopen, follow this process: https://github.com/karatelabs/karate/wiki/How-to-Submit-an-Issue

even better please try to contribute code or a PR, or influence your team / org to do so

[ravikiranbsl]

This example may not be the exact replica, but we can use this as an example.

Here scenario: assumption is the last link name is dynamically changing.

Sample Website: http://the-internet.herokuapp.com/

```
# Click on last url
Given driver http://the-internet.herokuapp.com/
And click("(//li)[last()]")

Error:

> js failed:
>>>>
01: click("(//li)[last()]")
<<<<
org.graalvm.polyglot.PolyglotException: js eval failed twice:(//li)[last()].click(), error: [type: MAP, value: {type=object, subtype=error, className=SyntaxError, description=SyntaxError: Unexpected end of input, objectId=-4957699248285031102.1.3}]

Could be the reason I'm getting this javascript error: Unexpected token, since i'm using webdriver manager

In my application, only mouse clicks are working due to some application limitations

i tried below approach aswell


 Given driver http://the-internet.herokuapp.com/
    * def ele = locateAll("//button[@aria-label='Continue']")
    * def size = karate.sizeOf(ele)-1
    * print 'size :::: ', size
    * print ele[size]
    And mouse(ele[size]).click()


 Given driver http://the-internet.herokuapp.com/
    * def ele = locateAll("//button[@aria-label='Continue']")
    * def size = karate.sizeOf(ele)-1
    * print 'size :::: ', size
    * print ele[size]
    And click(ele[size])





Getting below exception: 

<img width="1720" alt="Image" src="https://github.com/user-attachments/assets/32f89641-fc9d-4f57-9001-c91ebd2369cf" />

[ptrthomas]

reopening, but marked as help wanted contributions welcome

[ravikiranbsl]

Could you please suggest where I should start/check to work on this issue?

[ptrthomas]

https://github.com/karatelabs/karate/tree/master/karate-core/src/main/java/com/intuit/karate/driver

[CPogX]

You have a syntax error. Get rid of the extra parenthesis.

Given driver "http://the-internet.herokuapp.com/"
* click("//li[last()]/a")

or CSS selector
* click('li:last-of-type a')

Notice I have included the a tag because that is the actual link to click on, but if you need to click on that location vs the specific element you can move.click()
* mouse().move('//li[last()]').click()
or
* mouse().move(l'i:last-of-type').click()

For the -And click(ele[size])- way

• ele[size].click()

If you really want parenthesis you could do this:
* click("/(//li)[last()]/a")

X-Path needs to start with "/","./", or "../"
DriverOptions 445 and 606 has the logic. Could consider adding "(/" to the condition.

This example may not be the exact replica, but we can use this as an example.

Here scenario: assumption is the last link name is dynamically changing.

Sample Website: http://the-internet.herokuapp.com/

Click on last url

Given driver http://the-internet.herokuapp.com/
And click("(//li)[last()]")

Error:

js failed:

01: click("(//li)[last()]")
<<<<
org.graalvm.polyglot.PolyglotException: js eval failed twice:(//li)[last()].click(), error: [type: MAP, value: {type=object, subtype=error, className=SyntaxError, description=SyntaxError: Unexpected end of input, objectId=-4957699248285031102.1.3}]

Could be the reason I'm getting this javascript error: Unexpected token, since i'm using webdriver manager

In my application, only mouse clicks are working due to some application limitations

i tried below approach aswell

Given driver http://the-internet.herokuapp.com/
* def ele = locateAll("//button[@aria-label='Continue']")
* def size = karate.sizeOf(ele)-1
* print 'size :::: ', size
* print ele[size]
And mouse(ele[size]).click()

Given driver http://the-internet.herokuapp.com/
* def ele = locateAll("//button[@aria-label='Continue']")
* def size = karate.sizeOf(ele)-1
* print 'size :::: ', size
* print ele[size]
And click(ele[size])

Getting below exception:

```

[ravikiranbsl]

Hi @CPogX Yes, this throws an exception when using parentheses. However, there are scenarios where parentheses must be used, and they work in other frameworks. We need a fix in Karate.

Example:
(//div[@data-testid='continue'])[2]

[CPogX]

I believe there is already a built in solution for this by using the / before the parenthesis to indicate xpath: "/(//div[@data-testid='continue'])[2]", but I raised a PR.