Is there a way to achieve similar Exception handling in Protractor as we can with Selenium webdriver in Java?
When dealing with element not found exceptions, what is the most effective approach to handle them using Protractor?
Is there a way to achieve similar Exception handling in Protractor as we can with Selenium webdriver in Java?
When dealing with element not found exceptions, what is the most effective approach to handle them using Protractor?
Here is the answer you're looking for, now available in Protractor's FAQ section here
When WebDriver encounters errors such as not being able to interact with an element due to it being obscured, it throws exceptions. To handle and recover from these errors, consider using webdriverjs-retry. If your goal is just to catch the error without retries, follow this approach:
Customized Solution:
elm.isPresent().then(function(present) {
/* No WebDriver errors in this area */}
if (present) {
/* Element is present */
} else {
/* Element is not present */
}
, function(err) {
/* Error handling methods can be implemented here, like managing ElementNotFound
However, other potential issues could also occur, such as NoSuchWindowsError or ElementStaleError etc...
*/
});
Shoutout to @Leo Gallucci for his creative approach to the OP's query:
Today, I encountered a problem and wanted a neat solution similar to this:
/* A function that checks for three different DOM elements and returns the existing one along with its text contents. */
this.getMySelector = function(){
if (element(by.css('.mySelector')).isPresent()){
return element(by.css('.mySelector'));
}
else if (element(by.css('.mySelector2')).isPresent()){
return element(by.css('.mySelector2'));
}
else{
return element(by.css('.mySelector3'));
}
}However, I kept running into the issue of only the first if() statement being executed without checking the other conditions. It turned out that I needed to properly chain promises for my specific scenario:
this.getMySelector = function(){
element(by.css('.mySelector')).isPresent().then(function (pres) {
if (pres){
defer.fulfill( by.css('.mySelector').getText() );
}
else{
element(by.css('.mySelector2')).isPresent().then(function (pres) {
if (pres){
defer.fulfill(..);
}
}
}
}
}
// From calling test-spec.js file
getMySelector.then(function(text)){
console.log('Now I got the text ==> ' + text);
}
Protractor utilizes Try and Catch in its syntax for error handling. The snippet below demonstrates how to locate an element by Id 'IdTextBoxCode' and then input a code using 'codeTextBox.sendKeys(code);' within a TRY block. If an exception occurs (for instance, if the element with Id 'IdTextBoxCode' is not found), the catch block will handle the error.
browser.driver.findElement(by.id(browser.params.loginPage.IdTextBoxCode)).then(function(codeTextBox)
{
try
{
console.log("Entering Code: "+code);
codeTextBox.sendKeys(code);
}
catch(err) {
console.log('In catch block');
}
}, function(err) {
console.info('Code Text Box not displayed on page. Proceeding with default Code');
});
def takeScreenshot(method_name): screenshot_path = "Screenshots/" + method_name + ".png" driver.save_screenshot(screenshot_path) ...
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