OS. Using k6 extensions. Our GitHub Releases page has a standalone binary for all platforms. To review the complete list of browser metrics, refer to the section in the Metrics reference. The test run report can be exported to a responsive self-contained HTML file, which can be displayed even without an Internet connection. $ Explore the Docker Hub Container Image Library for grafana/k6, a powerful load testing tool designed for easy deployment and usage. browsers tend to do). But it all goes wrong, and the browser closes immediately after the first screenshot is taken. exe binary in your PATH to run k6 from any location. To run a simple local script: Copy the following code, paste it into your favorite editor, and save it as script. Follow along to learn how to: Run a test. io Browser module: locator. Currently, most of the stress test frameworks do the stress test… k6 isn’t Node. Jan 8, 2023 · This post explains how to get started with k6 browser, a k6 experimental module that adds browser-level APIs to interact with browsers and collect web performance metrics as part of your Grafana k6 tests. httpCredentials. If you stream your metrics, you can either write them to a file, like JSON, or Jul 5, 2023 · Hi @arvind_patel,. After downloading and extracting the archive for your platform, place the k6 or k6. When writing browser-level tests, it's recommended to use selectors that are robust to avoid test flakiness when the DOM structure changes. Migrating to this is a breaking change that will affect all scripts that use the experimental k6 browser module. For a top-level test overview, use the end-of-test summary. Apr 11, 2023 · k6 can also send metrics in near real-time in various output structures. : K6_INFLUXDB_BUCKET: The bucket name to store k6 metrics data. options. Mar 28, 2023 · Hello, My OS is Windows 10, I have installed k6 v0. Function Description open( filePath, [mode] ) Opens a file and reads all the contents into memory. Dashboard templates. Through the k6 browser API, you can run browser-based performance tests and collect browser metrics to identify performance issues related to browsers. 20. The breaking changes are: Converted most of the k6 browser module APIs to asynchronous (async) APIs. /tmp/k6-extended, this will be the path and filename for the binary. A 1-to-1 mapping between Browser and BrowserContext means you cannot run BrowserContexts concurrently. Get your metrics into Prometheus quickly Selectors are strings that represents a specific DOM element on the page. Test logic inside a group tags all requests and metrics within its block. For ideas, read Ways to visualize k6 results. Options Options configure test-run behavior. Aug 8, 2023 · Hi @gerardlj,. The following outputs include pre-built Grafana dashboards for their storage: Jul 3, 2023 · To know about all available k6 commands, enter the command k6--help in the terminal/command prompt. Now I’m able to test real user flows while using the same load testing tool to generate multiple users. Press Alt + Print Screen (may also say Prnt Scrn, or another variation). The best you can do is to upgrade k6 to the latest version (v0. Jul 9, 2019 · The output start with the logo of the k6 being printed to the screen. For granular output of all metrics (with timestamps), you stream metrics in real time. Init context Before the k6 starts the test logic, code in the init context prepares the script. Chrome version. (from the docs). This will create a k6 binary file in the current working directory. Extensions are developed both by the k6 developers and by the open-source developer community. It adds browser-level APIs to interact with browsers and collect frontend performance metrics as part of your k6 tests. Selectors are strings that represents a specific DOM element on the page. But, if you have a k6 Cloud account, you can also use the k6 cloud command to outsource the test to k6 In this webinar, learn how Grafana Cloud k6 offers you the best developer experience for performance testing. I have written script as below and it works-export function webtest() { const browser = chromium. Can you try returning promise after clicking on login. The Browser module introduces browser-level APIs that enable seamless interaction with browsers and facilitate the collection of frontend performance metrics as an integral part of your k6 tests. Run a test. To take screenshots on your Windows 10 or 11 PC, click the Windows logo at the bottom of your screen, type Snipping Tool, and click Open. 43. Add virtual users. js I think the behavior has changed with the breaking changes in v0. This file can be used exactly the same as the main k6 binary, with the addition of being able to run xk6-playwright scripts. Username to pass to the web browser for Basic HTTP Authentication. Feb 23, 2021 · Download k6 Browser Recorder for Firefox. I use minikube to run k8 and my website is writen in drupal. name – is the value provided in the Name field (above Dec 10, 2022 · OK. k6 has built-in support to output results with the Prometheus remote-write protocol. K6 version: k6 v0. A few functions are available only in init context. But I keep getting following error- remove C:\Users\SHRI~1\AppData\Local\Temp\xk6-browser-data-1157189391\BrowserMetrics\BrowserMetrics-62EDCCCB-1870. Explore k6 extensions With over 50 available extensions, the k6 extension ecosystem has many options to meet your requirements and help you incorporate new protocol access, embed a particular client, or improve your test performance. Running k6. io cloud account. With these example snippets, you’ll run the test with your machine’s resources. But how How to analyze the browser metrics output; How to set thresholds for your browser metrics; Google's Core Web Vitals. At the point of the test failing it might help to see what the page was rendering which could help you debug the issue; JavaScript API The list of k6 modules natively supported in your k6 scripts. Get Integrations & Tools Test authoring Codeless tools to speed up the test creation. waitForNavigation() to properly handle the asynchronous operation. Try out and share prebuilt visualizations. 1. The pages you mentioned are different. Key changes. 2 KB See full list on k6. Browser performance testing. setContent(html[, options]) Sets the supplied HTML string to the current page. Ensure that your browser is that “active window” by clicking anywhere in the browser window. open call, the popup will belong to the parent page's BrowserContext. Aug 15, 2023 · Hi @rodyb. k6 The k6 Jun 5, 2023 · You signed in with another tab or window. You can output the metric results as either aggregated statistics or individual data points. This means you can collect detailed front-end performance metrics that Grafana Labs' k6 load testing tool (formerly known as Load Impact)is used to simplify and automate load and performance testing for agile software development teams. PrometheusRW. Get your metrics into Prometheus quickly Aug 8, 2019 · Full Page Screenshots Windows Browser window only. k6 has a few additional ways to use lifecycle functions: handleSummary(). macos. The flexibility and interoperability of Grafana and k6 let you visualize test and observability data in one dashboard, regardless of where the data is stored. If you wish to create a new BrowserContext while one already exists, you will need to close the current one, and create a new one with either newContext or newPage. setDefaultNavigationTimeout(timeout) Jul 6, 2024 · It doesn’t work for me either with the v0. IDE extensions Code k6 scripts in your IDE of choice. But after selecting the dropdown value Im trying to set the ‘Discovery Document URL’ with some URL and its failing to type in. Examples. Awesome k6. Currently this functionality is delegated to the extensions implementation, but it would probably make sense to centralize the file storing functionality in k6 and expose its API to extensions. You can use the following command for this: K6 Quick Start Guide K6 Keyboard User Manual K6-plate-screw-position Jan 20, 2023 · Hi @mcw. Then click New to take a screenshot and click the floppy disk icon to save the image to your computer. For example: Jul 13, 2024 · K6 makes screenshot with blank page when I'm using code from snippet bellow. selectOption(selector, values[, options]) Selects one or more options which match the values from a <select> element. Options reference Every option, with Apr 25, 2023 · Thank you, with this command “set “K6_BROWSER_ENABLED=true” && k6 run script. If a page opens another page, e. I’m having some problems with the TLS verification. button: string: left Jan 24, 2024 · Dear all! I failed to find an answer in the net so writing here for the first time: Need to ensure that selector has appeared and then disappeared during the page load. Jan 2, 2024 · Whether you’re saving a webpage for future reference or sharing information with coworkers, taking screenshots is a quick and efficient way to document your findings. Organize requests in groups. . Jan 19, 2023 · @ankur I apologize that I didn’t make my question precise. The dashboard is updated continuously during the test run using server-sent events (SSE). Extensions are composable; you can combine any extensions, or mix In this webinar, learn how Grafana Cloud k6 offers you the best developer experience for performance testing. docker run --rm -i -e K6_BROWSER_ARGS='no-sandbox' <your-image> run - <test. I suspect this automatic login is facilitated by OIDC (OpenID Connect) configurations. A directory full of example k6 scripts for different use cases. browser as this is the WebDriver we use to drive our test. Packages that rely on APIs provided by Node. It manages: BrowserContext which is where you can set a variety of attributes to control the behavior of pages; and Page which is where your rendered site is displayed. The documentation of xk6 browser mentions login page. 46. Currently, the browser module supports the standard CSS and XPath selectors. Download the k6 binary. Through integration with other automation and Continuous Integration tools, k6 states they enable performance testing earlier in the development cycle. Please see the example below. Nov 15, 2022 · Hi @ankur I followed your steps to run with docker: docker build -t browser-k6 -f Dockerfile . exe version) to check that your build is based on the appropriate k6 version and contains the desired extensions. launch({ args: [], // Extra commandline arguments to include when launching browser process debug: true, // Log all CDP messages to k6 logging subsystem devtools: true, // Open up developer tools in the browser by default env If you specify a directory, the new binary will be k6 within that directory. So I think this is part of my confusion. i want to run in vs code terminal-powershell, must be possible that… The screenshot type will be inferred from file extension. k6 YouTube channel. When I’m logged in, I want to visit other pages within my web app. all() and page. js Please let us know how it goes. Note that providing an executor and setting the browser scenario option’s type to chromium is mandatory. Reload to refresh your session. For the tool to work, the browsers and OS dependencies must be installed locally. Codeless UI tool to generate a k6 test quickly. For each k6 scenario, the VU workload is scheduled by an executor. 0 currently), but your script works from the version v0. You switched accounts on another tab or window. Empower your development workflow with IDE extensions. When writing browser-level tests, it’s recommended to use selectors that are robust to avoid test flakiness when the DOM structure changes. If no path is provided, the image won’t be saved to the disk. May 19, 2024 · Browser Interaction: Unlike traditional load testing tools, K6’s browser module allows you to interact with real browsers. Click the Windows logo at the bottom of your k6 is optimized for minimal resource consumption and designed for running high-load performance tests such as spike, stress, or soak tests. Troubleshooting. Oct 19, 2022 · Hi @aakash. k6 is one of the first performance testing tools supporting protocol and browser-based testing. Nov 9, 2021 · Frontend and backend load testing in terms of response time and number of concurrent users 1613×724 19. with a window. k6 v0. . To provide a bit more context, in my This will avoid having to make a change to k6 browser and wait for a release to change the screenshot upload remote URL characteristics. Dec 13, 2023 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand {"payload":{"allShortcutsEnabled":false,"fileTree":{"src/data/markdown/docs/02 javascript api/07 k6-experimental/01 browser/10 Page":{"items":[{"name":"bringToFront Examples Get started with k6 Single request HTTP Authentication OAuth Authentication Correlation and Dynamic Data Data Parameterization Parse HTML HTML Forms Cookies Example Data Uploads API CRUD Operations Generating UUIDs HTTP2 WebSockets SOAP Transport Layer Security (TLS) Generating realistic data Crawl a web page Bundling and transpilation Functional testing Track transmitted data per URL Select the platform as Web for executing your K6 tests. The same goes for browser-specific APIs, such as the window object. Increase the test duration. The updated version introduces notable structural changes in its operation and API, including breaking changes: Jun 17, 2024 · How to Take a Screenshot Using the Windows Snipping Tool. Take screenshots for every action while debugging. I believe the events available to wait does not have a type of ‘Finish’. If you use one or more k6 extensions, you need a k6 Jan 25, 2023 · Hello, I am trying to execute xk6 test using docker with headless mode false, my OS is Windows 10 Pro , I run the last example test on Observing "GoError: launching browser: exec: no command while running browser tests… Aug 6, 2022 · Hi All, I am using xk6 browser extension and able to run a simple screen with page. The Browser recorder uses the HAR converter under the hood. Results output k6 emits metrics with timestamps at every point of the test. Docker version and image (if applicable) No response. Could you please take a look. User-centered observability: load testing, real user monitoring, and synthetics Learn how to use load testing, synthetic monitoring, and real user monitoring (RUM) to understand end users' experience of your apps. 0 ((devel), go1. Advanced Examples using the k6 Scenario API - Using multiple scenarios, different environment variables and tags per scenario. Next, let's run a sample browser test using k6 on the TestingBot browser grid. How? The http request method will need to be added to an env var, maybe just append it to the existing env var ( K6_BROWSER_SCREENSHOTS_OUTPUT ). Here the code: import { browser, networkProfiles } from 'k6/experimental/browser'; export const options = { scenarios: { ui: { executor: 'shared-iterations', options: { browser: { type: 'chromium', }, }, }, }, } export default The k6 extension ecosystem enables developers and testers to extend k6 to cover use cases not supported natively in the core. One of the advantages of browser-based testing is the ability to take screenshots. import { chromium } from 'k6/experimental/browser'; import { check k6/http The k6/http module contains functionality for performing HTTP transactions. K6_BROWSER_ENABLED}`; res = true; Then run the k6 command with the K6_BROWSER_ENABLED environment variable set: K6_BROWSER_ENABLED=true k6 run script. Additional lifecycle functions. The screenshot type will be inferred from file extension. The browser module brings browser automation and end-to-end testing to k6 while supporting core k6 features. Additionally, you can mix Browser module: context method. import {browser } from 'k6/experimental/browser'; export const options = {scenarios: {browser: Product developments and news from the k6 community. Step 2: Configure your test with K6 Desired Capabilities Once you have created a SmartUI Project, you can generate screenshots by running automation scripts. When page. You can also organize your test logic into Groups. 0, xk6-browser is now bundled in k6 as an experimental module! 🙌🏼. waitForFunction(pageFunction, arg[, options]) method At this point, it’d be nice to have a graphical interface to visualize metrics as they occur. The k6 community forum. page. isMobile: boolean: false: Whether to Feb 14, 2024 · Dear all, I am reaching out for assistance with a specific behavior I’ve encountered in my K6 script that utilizes the experimental browser feature. 0, no errors when running with 5 VUs, duration 60 secs, when increasing the number of VUs, I am getting several errors, is there some limitation about number of VUs ? how could I avoid to get those kind of errors? ERRO[0030] process with PID 35832 unexpectedly ended: exit status 1 category=browser elapsed=“221 ms” goroutine=219 ERRO The browser module is the entry point for all your tests, and it is what interacts with the actual web browser via Chrome DevTools Protocol (CDP). Jan 31, 2023 · Yes, see my code example where I use: page. Steps to reproduce the problem. Add name of the project, approvers for the changes found, tags for any filter or easy navigation. It allows you to discover issues that might remain unnoticed if you only conduct testing Browser module: locator. k6 browser module aims to provide In this webinar, learn how Grafana Cloud k6 offers you the best developer experience for performance testing. In my setup, when executing the script, it bypasses the authentication step and automatically logs into the application. I'm supposing that problem is in self signed certificate, but I cannot confirm it. For more about running k6, refer to the Running k6 guide. This opens many options for remote endpoints and storage. See the example and the API below. A 2-3 hour k6 workshop with practical k6 examples using the QuickPizza demo app. You signed out in another tab or window. Interact with real browsers and collect frontend metrics as part of your k6 tests. 46). launch({ headless: false, timeout: '60s', // Or whatever time you want to define }); const page As of k6 version 0. screenshot is called when running non-headless the browser window flickers to a smaller size which is jarring. Function Description batch( requests ) Issue multiple HTTP requests in parallel (like e. Can you confirm that your puppeteer script works if you do a similar wait for selector on "div[class$='overlay-box']"?. 44. May 8, 2023 · Hello, I’m having trouble getting a browser test to work. js, for instance the os and fs modules, won’t work in k6. If you experience problems recording a request, try the HAR converter. A default BrowserContext is created when a browser is launched. A k6 extension that that makes k6 metrics available on a web-based dashboard. For details about the runtime, refer to the Test lifecycle. open call, the popup will belong to the parent page’s BrowserContext. Parameter Type Default Description; options: object: null: options. For example, options are how you define test tags, thresholds, user agents, and the number of virtual users and iterations. Ramp the number of requests up and down as the test runs. goto and taking a screenshot. About this Oct 25, 2022 · Hi @inanc,. js But the script is not running, seem it stays loading. click method. js. xk6 browser is a browser automation and end-to-end web testing, that allows using all features we have in K6 for our UI application. I am running k6 through Docker and have the following Dockerfile: FROM grafana/k6:latest USER root RUN apk update && apk add --no-cache chromium ENV K6_BROWSER_ENABLED=true ENV LOAD_TEST_TARGET_VU_COUNT=1 ENV LOAD_TEST_SECRET_SEED=1 Here is my test script: import { sleep, check } from "k6"; import { Rate } from "k6/metrics Scenario executors. In this webinar, learn how Grafana Cloud k6 offers you the best developer experience for performance testing. This needs to contain the URL to the TestingBot grid, together with the credentials and (url-encoded) capabilities. Office hours, specific playlists, and other interesting videos from the community. pma: Access is denied. It’s difficult to pinpoint the issue without being able to test against the same website that you are testing against. Paste the image into a ticket or email by pressing Dec 19, 2023 · The k6 Browser module brings browser automation and end-to-end web testing to k6 while supporting core k6 features. ; Some internal data structures are not setup correctly, which causes the nil pointer dereference. docker run --rm -t browser-k6 run - <script. cookieJar() Get active HTTP Cookie jar. This guide outlines the key changes you will need to make when moving your existing k6 browser test scripts to the new k6 browser module (bundled with k6 version 0. After that comes the method of execution, being “local” in my case. A list of awesome stuff about k6. Jan 14, 2023 · Today will introduce the xk6 browser is an extension of K6. The Browser module brings browser automation and end-to-end web testing to k6 while supporting core k6 features. Executors configure how long the test runs, whether traffic stays constant or changes, and whether the workload is modeled by VUs or by arrival rate (that is, open or closed models). Take special notice of WDS. If you’re using Microsoft Edge as your browser, you already have access to the web capture feature—a built-in screenshot tool that lets you save an image of your entire webpage. Some reasons you might want to take screenshots are when running tests in a CI pipeline and: the test fails. Browser Recorder - Record a user journey to create your k6 test. latest. k6 provides the Tags and Groups APIs to help you during the analysis and easily visualize, sort and filter your test results. When running docker, can you try adding the environment variable K6_BROWSER_ARGS?. Explore the endless possibilities of k6 and xk6. The k6 browser module emits metrics based on the Core Web Vitals. Browser testing is a valuable approach to evaluate performance at the browser level and assess user experience. del( url, [body], [params] ) Issue an HTTP DELETE request. Property Description; browser: The browser module API is the entry point for all your tests. But I’m guessing it’s relating to the return Promise. Groups can help you organize the test as a series of logical transactions or blocks. You can now run the performance test for your web application Jan 11, 2023 · While k6 browser started off as an extension, as of k6 version 0. Migrating to k6 v0. WDS object passed in Specifically we are provided an object called WDS with the following properties. For details, refer to Custom summary. Using k6, you can stream your local test results to any backend. Prometheus exporters. Run . The browser module API is used to create a new BrowserContext. Community. In this brief post, we will compare k6 to Selenium to highlight the strengths and differences between these two frameworks. Record k6 scripts right from the browser, automatically uploaded to your k6. Thanks. In JMeter the driver is passed into the test. If path is a relative path, then it is resolved relative to the current working directory. In the latest release of k6, we have graduated k6 browser module out of experimental and is now under the import k6/browser. The output is redirected to the terminal and the name Using k6 HTTP Requests Metrics Checks Thresholds Options Test lifecycle Modules Tags and Groups Cookies Protocols Environment variables Execution context variables Browser module: page. Visual Studio Code Extension - Run k6 This would go against a core k6 goal: the same script should be executable in multiple modes. ignoreHTTPSErrors: boolean: false: Whether to ignore HTTPS errors that may be caused by invalid certificates. k6 has many output formats, which can serve as inputs for many visualization tools, both open source and commercial. I used your docker file example: Oct 5, 2023 · Hi, I am following a sample script for browser testing using k6. /k6 version (or k6. Nov 10, 2015 · Here is an example of a JMeter + WebDriver test written in Java. View organizations. xk6-browser version. js”, I can run, but just in the command prompt. screenshot to save a visual image of what the script encountered for later troubleshooting. I’ve installed k6 with homebrew on macOS M1. Performing Load Testing on browsers using k6. 0, it is now bundled in k6 as an experimental module, and usable without a separate binary or compilation step! We also have further plans to integrate k6 browser in k6 cloud as part of a private beta. My case is multiple pages post login. js or a browser. all and the finally block. If you specify a path to a non-existent file, e. I just can’t see where I’m going wrong. gupta,. g. Hybrid load testing A default BrowserContext is created when a browser is launched. Sep 6, 2022 · Hi Rody, This question seems to be unrelated to xk6-browser and more to do with how to work with docker, so probably better suited for a different forum. WDS. On this page Read about… How to use options How to set options in different places (with examples), how to override options, and how to access the value of an option as the test runs. Apr 11, 2023 · For example, in the case of k6 browser, the user has the capability of taking screenshots of the test execution and store them as a file in FS. Thanks, I have written the below script and now its selecting the dropdown value. I wrote a simple code In this webinar, learn how Grafana Cloud k6 offers you the best developer experience for performance testing. ENV Default Description; K6_INFLUXDB_ORGANIZATION: Your InfluxDB organization name. 45. 5, darwin/arm64) Test I try to run: import { chromium } from 'k6/experimental/browser'; export default async function () { const browser = chromium. screenshot([options]) Returns a buffer with the captured screenshot from the web browser. Community resources. Subscribe now Jul 6, 2023 · Hello, I’m having some troubles running a k6-browser test. PS: If you’re on a Windows machine, you might also want to try the following: set "K6_BROWSER_ENABLED=true" && k6 run script. Test Builder - Inspired by the Postman API Builder. This takes a screenshot of the browser and copies it to the clipboard. To connect to the TestingBot CDP grid, you will need to specify a K6_BROWSER_WS_URL environment variable. The k6 browser module has changed my approach to automated performance testing. Comments in-line. Click on the Submit. Thus you can monitor tests as they run, or store the results to visualize at your convenience. $("label[for^=option-code]"); That will match the label element which “for” property starts by “option-code”. js Dec 26, 2023 · I’m new to the k6 world, and I’m trying to make some stress test to a local website. Try the HAR converter. Mar 30, 2023 · const res = `${____ENV. 0. : devices: Returns predefined emulation settings for many end-user devices that can be used to simulate browser behavior on a mobile device. Jul 21, 2023 · I want to capture the screenshot of page only after the finish time and not after ‘load’ or ‘domcontentloaded’, because only after the finish time, all of my resources have finished loading. If you want to make a custom summary, k6 calls one more lifecycle function at the very end of the test. password: string '' Password to pass to the web browser for Basic HTTP Authentication. It looks like there are two issues: A panic occurs when the launch command is called. I already tried the insecureSkipTLSVerify option, already tried the K6_INSECURE_SKIP_TLS_VERIFY env, also tried the --insecure-skip-tls-verify, nothing seems to work. Screenshots. Thank you for the question and the screenshot of the output. 52. This section provides some conceptual background about the core vitals. Aug 10, 2023 · Photo by Rodion Kutsaiev on Unsplash. Since announcing xk6-browser in November 2021 at Grafana ObservabilityCON, the team have been busy adding on new features to include browser automation in k6. file( data, [filename], [contentType] ) Create a file object that is used for building multi-part Jan 30, 2024 · 4. I took a look at the dockerfile that you’ve created and found that it should work if you issue the following command: Dec 19, 2023 · With the introduction of k6 and its extensible modules, browser testing is possible in a similar manner as Chromium through the browser module. Hybrid load testing Community resources. After every user interaction the script simulates, use page. When a click action results in a page navigation, remember to work with Promise. import { browser } from 'k6/experimental/browser'; import { check } from 'k6' export const options = { scenarios: { ui: { executor: 'shared-i… Feb 14, 2023 · xk6 browser is an extension of k6 that brings browser automation and end-to-end web testing to k6 while supporting core k6 features. Like the Browser Recorder, the HAR converter creates a k6 script from the HTTP requests included in a HAR file. ws eo qe ri nq cf rq ih xf nu