Protractor - try to click an element and ignore all errors

Question

I want to try to click an ElementFinder, so that in case of error during click, the tests will be not marked as failed and no error will be placed on console.

Unfortunately, my method:

static tryToClick(elem: ElementFinder) {
    // I want to ignore all errors, just try to click and if not proceed
    if (elem.isPresent() && elem.isDisplayed() && elem.isEnabled()) {
        try {
          browser.wait(protractor.ExpectedConditions.elementToBeClickable(elem), 999).then(function() {
            elem.click().then(function() {try {} catch (error) {} } );
          });
        } catch (error) {}
    }
  }

still produces an error on the console:

Failed: stale element reference: element is not attached to the page document

thus I don't understand why it is not handled in the try-catch block.

score 2 · Accepted Answer · answered Sep 07 '18 at 15:19

2

Your try-catch isn't working, because the error occurs inside the promise.

There are three ways to catch promise rejection:

Use the .catch(...) function of a promise

elem.click().catch((err) => { // Do some error handling stuff in here });

Use the rejection-function of the .then(...)

elem.click().then(() => {
    // Do something
}, (err) => {
    //Do some error handling stuff in here
});

Use a try-catch in combination with async-await

static async tryToClick(elem: ElementFinder) {
    // I want to ignore all errors, just try to click and if not proceed
    if (elem.isPresent() && elem.isDisplayed() && elem.isEnabled()) {
        try { 
            await browser.wait(protractor.ExpectedConditions.elementToBeClickable(elem), 999);
            await elem.click();
        } catch (error) {}
    }
}

answered Sep 07 '18 at 15:19

Batajus

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Shouldn't there also be `await`'s for the other element methods, such as `isPresent()`? – Bouke Sep 07 '18 at 15:34
It's possible, but not mandatory, except the error occurs in the if-condition. – Batajus Sep 07 '18 at 20:10
2

Unfortunately test is marked as failed: `Failed: elem.click(...).catch is not a function`. – matandked Sep 10 '18 at 09:47
Another solution is to use .isPresent() cf. https://stackoverflow.com/a/25346441/636849 – Lucas Cimon May 21 '19 at 11:25
You need to have `element.click(...).then().catch` You won't be able to access the catch method directly from click. – axecopfire Dec 03 '20 at 02:20

Protractor - try to click an element and ignore all errors

1 Answers1