Fluent wait in protractor

In protractor we have implicit and explicit waits available by default. But fluent wait is not directly available. Now lets see how we can implement fluent wait using explicit wait in protractor. In protractor browser. Otherwise it throws WaitTimeOutError after the time limit. In this case 2 minutes is time out that we have set. With core explicit wait we can not control the poll interval. If we want to search for an element for every 2 sec, we can not do it only with browser. In the above code we have used two browser.

The inner browser. In the inner browser. Problem with above code: The above code is not exactly the way of implementing the fluent wait. Why because, with in the inner browser. That means, with in 2 sec of inner wait, the element. Note: We need to set the implicit wait to zero to make sure that implicit wait timeout does not interfere with our polling interval. In the above code we are making browser to wait for 2 sec for every iteration poll. So we are controlling poll interval here.

To avoid the failure with in time limit we need to catch the exception and return false to make it wait for specific time 20 sec otherwise the exception will break the wait condition. In the above code, we are catching the possible errors of element.

So that the element. There are 3 types of waits available in selenium webdriver. Implicit wait is applicable to all the operations performed by driver. It waits for a condition specified with in the time limit provided.

Why we need fluent wait if we already have explicit wait? Now, Let us see how we can catch the exception and return false; browser.

Happy Testing!!!Blog Software Testing Selenium vs Protractor.

fluent wait in protractor

This blog post gives a comprehensive comparison of Selenium and Protractorand lets you understand when to choose which tool and the reasons behind it. Selenium is an open source testing tool for performing automated testing on web applications. It is designed dedicatedly for web-based applications and is compatible across different browsers and platforms.

Licensed under Apache License 2. This is the simplest among the Selenium suite. This is a Firefox plugin that testers use to record their sequence of work flow.

It is easy to install and is compatible with other plugins too. This tool has the most basic features and many testers use this for prototyping purposes. Besides, this is learner friendly and user friendly too. Selenium Remote Control RC is an automated web testing tool that gives the testers the choice to choose their preferred programming language.

It is matured, contains a complete API and has more features than just browser based tasks. The current version 2. It interacts with browser by directly communicating with it and retrieving the results. This testing tool from Selenium is specifically designed for parallel execution of tests, simultaneously on multiple browsers and environments.

The core functionality of Selenium Grid revolves around hub and nodes concept. The main advantage of using this is time saving and faster execution. Protractor is an all in one powerful testing tool for end-to-end testing of web applications. Though Protractor is designed keeping in mind AngularJS applications, it performs with equal competence with non-AngularJS applications too.

Initially it was developed by Google developers and later converted into an open source framework. Talking in terms of Selenium WebDriver, Protractor is a wrapper developed on the top of webdriver. WebDriver is also the official JavaScript implementation of Selenium. The following table brings out the key comparisons for both the testing tools — Selenium and Protractor:.

When you are working on a grid, there is no much difference between Selenium and Protractor. All that you need to take care is the configuration and the choice of browser. Selenium is widely established and proven one, and Protractor is emerging in the market as of now. As such the comparison can be done as we have discussed in this post however, a decision about which tool to choose is based on many factors and a simple judgment can never be made in one word.

Intrigued to know more about Selenium and Protractor?? Gain expertise by taking expert training on this evergreen and most demanded automated testing tools at GangBoard, the expert in IT and software training and certifications in Chennai and Bangalore. Their expert trainers hail from reputed MNCs and have vast real-time experience in working with such tools. You are just a call away from their expert counseling team and shaping your career! Go ahead and All the best!! Your email address will not be published.

fluent wait in protractor

Save my name, email, and website in this browser for the next time I comment.To understand this chapter you have to learn the concepts discussed in the earlier WebDriver Waits chapter already. A fluent wait looks like this:. Fluent waits are also called smart waits also.

Subscribe to RSS

Instead, it waits for the time till the condition specified in. A flow diagram explaining the working of Fluent wait is explained in the below diagram. This process keeps on happening till the time either the time out expires or the condition comes out to be true.

In this example we have used ExpectedConditions class. This is quite a handy class and will suite most of your needs. However, at times we might need more than what is present in ExpectedConditions. If you pay close attention to the.

Lets take a look at one such example. Lets write a simple wait which can wait for the color of the button to change. Once the color has changed, click on the button. Before we start lets just take a look at what is signature of.

Pay attention that. A Function here is a generic interface which asks you to implement the following methods — apply F from — equals Object obj Implementation of equals can be ignored and it will be picked from the base implementation. Pay attention that we have to define the apply method ourselves. Now the important point to note here is the signature of the apply method.

Method will accept a WebDriver as the input argument and will return a Boolean value. This is because of the way we have defined the Function Function. First argument mentioned will be the input argument and the second will be the return value of the apply method.

Now implement the apply method so that it returns false in case of condition failure and return true in case of condition being met. In our case, we will return false if the color of the button is not red else we will return true.

Here is the code sample.One of the Important Factor in test automation for a complex web application is to ensure that the flow of the test cases should be in synchronization with the application under test AUT.

When tests are run, the application may not always respond with the same speed. For example, it might take a few seconds for a progress bar to reach percent, a status message to appear, a button to become enabled, and a window or pop-up message to open.

We can handle these anticipated timing problems by synchronizing our test to ensure that Selenium WebDriver waits until our application is ready before performing a certain action. There are several options that we can use to synchronize our test. When an implicit wait is implemented it tells WebDriver to poll the DOM for a certain amount of time when trying to find an element or elements if they are not immediately available.

The default setting is 0. Once set the implicit wait is set for the life of the WebDriver object's instance. However, an implicit wait may slow down our tests when an application responds normally, as it will wait for each element to appear in the DOM and increase the overall execution time.

How many seconds the driver has to wait. You can use other time unit like day, microseconds, nanoseconds etc. When a FluentWait instance is implemented it defines the maximum amount of time to wait for a condition, as well as the frequency with which to check the condition. Furthermore, the user may configure the wait to ignore specific types of exceptions whilst waiting, such as NoSuchElementExceptions when searching for an element on the page.

Above code snippet will Wait 30 seconds for an element to be present on the page and check for its presence once every 5 seconds. When an Explicit Wait is implemented it provides a better control when compared with an implicit wait.

Unlike an implicit wait, we can write custom code or conditions for wait before proceeding further in the code. An explicit wait can only be implemented in cases where synchronization is needed and the rest of the script is working fine.

The ExpectedCondition class provides a set of predefined conditions to wait before proceeding further in the code. The following are some common conditions that we frequently come across when automating web browsers supported by the ExpectedCondition class We can create a wait for a set of common conditions using the ExpectedCondition class. First, we need to create an instance of the WebDriverWait class by passing the driver instance and timeout for a wait as follows:.

Next, ExpectedCondition is passed to the wait. Note : - The WebDriverWait object will call the ExpectedCondition class object every milliseconds until it returns successfully. Custom-expected condition : WebDriver provide us to create custom wait condition.

Selenium WebDriver: - Synchronizing a Test Using Waits One of the Important Factor in test automation for a complex web application is to ensure that the flow of the test cases should be in synchronization with the application under test AUT. Synchronizing a test with an implicit wait When an implicit wait is implemented it tells WebDriver to poll the DOM for a certain amount of time when trying to find an element or elements if they are not immediately available.

Example: - Synchronizing a test with FluentWait When a FluentWait instance is implemented it defines the maximum amount of time to wait for a condition, as well as the frequency with which to check the condition.

By; import org. WebDriver; import org.

fluent wait in protractor

WebElement; import org.One of the Important Factor in test automation for a complex web application is to ensure that the flow of the test cases should be in synchronization with the application under test AUT. When tests are run, the application may not always respond with the same speed.

For example, it might take a few seconds for a progress bar to reach percent, a status message to appear, a button to become enabled, and a window or pop-up message to open. We can handle these anticipated timing problems by synchronizing our test to ensure that Selenium WebDriver waits until our application is ready before performing a certain action.

There are several options that we can use to synchronize our test. When an implicit wait is implemented it tells WebDriver to poll the DOM for a certain amount of time when trying to find an element or elements if they are not immediately available.

The default setting is 0. Once set the implicit wait is set for the life of the WebDriver object's instance. However, an implicit wait may slow down our tests when an application responds normally, as it will wait for each element to appear in the DOM and increase the overall execution time. How many seconds the driver has to wait. You can use other time unit like day, microseconds, nanoseconds etc. Selenium WebDriver: - Synchronizing a Test Using Waits One of the Important Factor in test automation for a complex web application is to ensure that the flow of the test cases should be in synchronization with the application under test AUT.

Synchronizing a test with an implicit wait When an implicit wait is implemented it tells WebDriver to poll the DOM for a certain amount of time when trying to find an element or elements if they are not immediately available. Example: .By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I spent a couple days trying to make Protractor click elements that are visible on the page appearing after a click on a button. But most of the time I have this error:.

How to implement fluent wait using explicit wait in protractor?

The only way I got it to work was to remove everything I tried and use a browser. So, after playing a bit more with my code, I got it to work with just the addition to the onPrepare in protractor. Learn more. Wait for element to be visible in Protractor Ask Question. Asked 1 year, 7 months ago.

Active 1 year, 7 months ago. Viewed times. But most of the time I have this error: Error: Timeout - Async callback was not invoked within timeout specified by jasmine. Stack: Error: Timeout - Async callback was not invoked within timeout specified by jasmine. Multiple browser. ExpectedConditions as you can see above, which did not work as well. Jean-Baptiste Jean-Baptiste 1, 1 1 gold badge 11 11 silver badges 26 26 bronze badges.

I guess it was working while I testing multiple things. You can check my answer. Active Oldest Votes. Vin Vin 9 9 bronze badges. I'm not sure this would help, since the page was loading before the timeout would end, which makes me think of an implicit wait issue.

If the issue comes back, I'll try your solution. Yes it's not advisable to use both waits with each other as implicit wait is set for complete driver life. Try going through selenium docs for implicit wait. Sign up or log in Sign up using Google. Sign up using Facebook.

Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Programming tutorials can be a real drag. Featured on Meta. Community and Moderator guidelines for escalating issues via new response….

Feedback on Q2 Community Roadmap. Technical site integration observational experiment live on Stack Overflow. Dark Mode Beta - help us root out low-contrast and un-converted bits.

Related As discussed earlier, Protractor is an open source, end-to-end testing framework for Angular and AngularJS applications. It is Node. If we talk about the conjunction of Protractor and Selenium, Protractor can work with Selenium server to provide an automated test infrastructure. The communication between the first two processes - the test scripts and the server depends upon the working of Selenium Server.

In other words, we can say that the way Selenium server is running will give the shape to the communication process between test scripts and server.

Selenium server can run locally on our machine as standalone Selenium Server selenium-server-standalone. In case of standalone Selenium server, there would be an http communication between Node. As we know that the server is responsible for forwarding commands to the browser after interpreting the same from the test scripts. That is why server and the browser also require a communication medium and here the communication is done with the help of JSON WebDriver Wire Protocol. The browser extended with Browser Driver that is used to interpret the commands.

While working with Protractor, the very first process, that is test script is run using Node. Selenium Server acts like a proxy server in between our test script and the browser driver. It basically forwards the command from our test script to the WebDriver and returns the responses from the WebDriver to our test script. There are following options for setting up the Selenium server which are included in conf. If we want to run the server on our local machine, we need to install standalone selenium server.

We must have JDK installed on our local machine. For installing and starting Selenium server manually, we need to use WebDriver-Manager command line tool that comes with Protractor. It can be specified in config file by setting seleniumPort. The default port is It can be specified in config file by setting seleniumArgs. If you need full list of array of commands, then start the server with the -help flag.

fluent wait in protractor

Another option for running our test is to use Selenium server remotely. The prerequisite for using server remotely is that we must have an account with a service that hosts the server. One more option for running our test is to connect to the Browser Driver directly without using Selenium server. Protractor can test directly, without the use of Selenium Server, against Chrome and Firefox by setting directConnect: true in config file. Before configuring and setting up the browser, we need to know which browsers are supported by Protractor.


Replies to “Fluent wait in protractor”

Leave a Reply

Your email address will not be published. Required fields are marked *