If a snapshot is different from the compared baseline, it has a visual diff. Web. You signed in with another tab or window. Running this command in the directory with the v1 config will convert the old config to v2. Cypress: Cypress is a JavaScript-based end-to-end testing framework built on top of Mocha which runs on the browser. Snapshot static or hosted Storybook stories. "cwd option must be a path to a directory" error from percy snapshot. Once you open the page, you may have to wait a bit for the results to be displayed; the first build takes longer as Percy gathers and renders the assets for the first time. Lions of the North - Ralph George Algernon Percy Duke of Northumberland 2019 From the Norman Conquest to the present day, the story of Alnwick Castle and the Percy family has been woven into the fabric of British history. containing a function body can be provided when the file format prevents normal functions. This doesn't match the usage description in the docs. The snapshot command has a top-level key (snapshot) for configuration to control widths, Percy CSS, and other snapshot options. For demonstration purposes, well be using a single-page application thats API-driven using real-world data. I want to send a custom HTTP header with the original request; the one for the URL I want a snapshot of. How can I explain to my manager that a project he wishes to undertake cannot be performed by the team? For execute however, a string 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. As mentioned earlier, the visual testing process requires a Percy project where we can review and approve snapshots. This config file allows you to globally set configuration options for each build (run percy config:create --help to see the various options). If you were to go for lunch now and then re-run the tests when you return, a visual diff is going to be detected despite not changing anything. If youre on Windows, I recommend you use Git Bash or any Linux-based terminal to execute the following command. When providing a static directory, it will be served locally and pages matching the include argument (and excluding the exclude argument) will be navigated to and snapshotted. npx is going out to the registry to install a package named percy because it didn't find an executable in the node_modules folder with a matching name. Let's say you want to apply ahide-in-percyclass to elements you want hidden in Percy. The important thing is that you see for yourself how to interact with the app. Snapshot Lists. Sharing Options. Percy supports several: You can also host your own CI/CD server on your local network; Percy supports that too. The Historical Rates page is similar to the Currency Rates page, except that it allows you to display rates for any past date as far back as 1999. used to determine when to create this RTL duplicate story. Running this command will create a skeleton config file (with pre-populated defaults): Once the configuration file is created, running percy exec should automatically detect the file and use the specified options for all snapshots in the build! Note: All options are also accepted by other file formats. This firstly prompts me to install the additional percy package: Any time I subsequently run the command it errors out with: Error: The cwd option must be a path to a directory. We need to freeze this data so that we can focus on testing areas that do matter. Well use this demo project as our starting point. Does Cosmic Background radiation transmit heat? PERCY_TOKEN, a new Percy build will be created and snapshots will be uploaded to your project. Thank you for supporting the partners who make SitePoint possible. Where have I gone wrong here? |---------------------------------------| Is it the same directory @percy/cli was installed in? That make sense. At what point of what we watch as the MCU movies the branching started? Aha. Once test execution done, a new build will be created and you can review the snapshots taken in your Percy project. Under the Link a repository section, youll get a message requiring you to install an integration for your organization. API Reference. Familiarity with any testing framework will also help you easily understand the concepts discussed in this article. If you relied on this This will make your scripts more reliable and faster than PercyScript. Copy the PERCY_TOKEN under the CI section set-up and save it somewhere. And I don't see any option for it. First, we need to give Percy permission to access our GitHub repositories. named metadata about a story, used to control the behavior of Storybook features and addons. Percy provides developers with a platform and workflow to run visual testing and reviews on web apps, static sites, or component libraries. Assuming you have a Git branching strategy in place, this is a quick rundown of how the approval workflow looks: Lets jump in and do some practice. |---------------------------------------| are taken. Note: All options are also accepted by other file formats. Let's code. This will occur on the Daily Rates and Exchange Rate pages. If you're still having trouble with setting up a config file, feel free to file an issue. Well start by creating a new feature branch: Next, lets make some visual changes. How to scope a screenshot to a single element. A path to the directory you would like to snapshot OPTIONS -b, --base-url=base-url [default: /] If your static files will be hosted in a subdirectory, instead of the webservers root path, set that subdirectory with this flag. **/, /** ***Dogs may change color naturally as they mature due to many factors such as genetics, hair type, losing puppy fur and changing to the adult coat, pigmentation, hormonal changes, seasonal changes, shaving, etc. **/, A Beginners Guide to Testing Functional JavaScript, A Guide to Testing and Debugging Node Applications, Visual Regression Testing with PhantomCSS, AngularJS Testing Tips: Testing Directives, make and commit changes on the feature branch, create a pull request via your GitHub dashboard. percy Storybook parameter. The --rtl_regex flag was The minimum height can be A path to the directory containing static snapshot images OPTIONS -c, --config=config Path to percy config file -d, --dry-run Print the list of images to upload without uploading them -f, --files=files [default: **/*.png,**/*.jpg,**/*.jpeg] Glob or comma-seperated string of globs for matching the files and directories to snapshot. Was Galileo expecting to see so many stars? Press Alt + click on the link to open the dashboard build page. Prior versions of the Storybook SDK were drastically different than the current version. See the list of breaking changes below for details. Update snapshots.js. To use new versions of this SDK, you will have to also install the CLI with the SDK: $ npm install --save-dev @percy/cli @percy/storybook. Connect and share knowledge within a single location that is structured and easy to search. SDK doc for instruction for your specific SDK. option, so are per-snapshot configuration options via an array of overrides. Migrating upgrade and experience diffs due to the lack of JavaScript, it can be re-enabled using the matching In order to use the Percy CSS media query with Storybook snapshots, you need to modify the Storybook's preview-head.html file to serve static CSS overrides. Facebook. This sometimes resulted in flakey snapshots or snapshots with missing assets. Go to the folder where you set up the demo project. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. A tag already exists with the provided branch name. Share on LinkedIn, opens a new . Visual testing is a topic for intermediate and advanced users. The options waitForTimeout and waitForSelector can also be provided to wait for a timeout It captures screenshots, compares them against the baseline, and highlights visual changes. You signed in with another tab or window. To solve this issue, we need to intercept the HTTP API requests and replace responses with our local data. Comments and notifications ensure that teams stay updated. JavaScript files may also export sync or async functions that return a list of pages to snapshot. The visual changes should be as expected. Once youve completed the sign-up process, youll be presented with the option of either creating a new project or trying out a demo project. In our case, were dealing with dynamic data being sourced from a real-world, remote RESTful API. is also accepted. You can use any CSS and it'll only be rendered in Percy's rendering environment. CLI reference. the real DOM and relevant assets of each story. dynamically filtering lists with include/exclude options, and enables utilizing features such as See our CLI config docs for more information. Sometimes thats not enough wait time to capture the right page state. For such paths, rewrites can map a short, clean, or pretty path to a Make sure to place the mock handling data and code at the top, as follows: Once again, run your Percy tests: npx percy exec -- node snapshots.js. Check to see the changes across browsers and device widths. The percy Versions of this plugin prior to 1.0 depended on and invoked the snapshot command from the now deprecated @percy/agent package. There are many scenarios we can test for, but for the sake of simplicity, well only test to ensure that each page is working and displaying the results correctly: To understand the script, youll need to go through Puppeteers API documentation to find references to the functions used. See the storybook documentation for how to add custom head tags to your project. To follow this tutorial, youll need to be comfortable writing code in JavaScript ES6+ syntax. Thats quite impressive, as doing this manually is tiresome. specific resource. For example, if there are dynamic parts of the page that you don't need to test or are only interested in a very specific region to test. Paths for resources can sometimes be expected to be in a certain format that may not be covered by the clean-urls option. Nested classes instances in Javascript/Node.js. |---------------------------------------| The new command is now integrated into A predicate can be a string glob or pattern, a regular expression, or a function that accepts a The Percy CLI snapshot command is the easiest way to start visual testing. is also accepted. https://docs.percy.io/docs/cli-configuration#snapshot, The open-source game engine youve been waiting for: Godot (Ep. Paths are matched using path-to-regexp. To get started with Percy, install one of its SDKs into the project you want to visually test. Running this command will create a skeleton config file (with pre-populated defaults . This can be passed as a global snapshot option or as a per-snapshot option. This can done as a per-snapshot option or added to your global Percy SDK config. rev2023.3.1.43269. With the snapshot command, you can interact with the page by providing an execute option. I encourage you to read through the following docs to gain a deeper understanding: Next, lets dive into the practical implementation of the visual testing process. For example, a common use case is to build an array of pages dynamically and then iterate over that array to snapshot pages. do. Instead of an array of snapshots, list files can also contain an object that defines additional top-level options along with a snapshots option containing the array of snapshots. how to pass request headers to Percy snapshot? For a complete list of integrations, you should check out Percys SDK page. Find many great new & used options and get the best deals for 1920-40s Soldier Men Horse Wagon Cars Vintage Pipe Women Snapshot Photo Lot at the best online prices at eBay! This will take you through a guided tour that will show you how to interact with different elements of the review tools. Do note that the Chrome browser will be downloaded inside your node_modules folder, so be patient if you have a slow internet connection. Run. Once you have generated a static version of your app, you can remove the surrounding @media only percy block in the markup to preview your Percy-specific styles in your browser. Instead of an array of snapshots, list files can also contain an object that defines additional Launching the CI/CD and R Collectives and community editing features for How do I pass command line arguments to a Node.js program? running on the page. There is an option to use GraphicsMagick . Usage: $ percy snapshot [options] <dir|file|sitemap> Arguments: dir|file|sitemap Static directory, snapshots file, or sitemap url Options: -b, --base-url <string> The base url pages are hosted at when snapshotting --include <pattern> One or more globs/patterns matching snapshots to include --exclude <pattern> One or more globs . But that seems to relate only to asset discovery - fetching CSS, JS and other page assets required by the URL I'm trying to snapshot. Enter a project name on the next page: Percy-Tutorial. Once you confirm the name, youll be taken to the Build page, where you can configure visual testing settings for your project. subcommand, percy storybook. However, since pages are matched against the files iOS Swift. Integration with End-to-end testing tools is similar to Happo, except that with Percy, you are allowed to take screenshots of the whole page, so you do not need to select an individual element first: . A name can be provided which will override the default snapshot name generated from the url By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Percy: Percy helps teams automate visual testing. YAML anchors and references. You need to have the owner role to give Percy permission access to your repository. Are you sure you want to create this branch? skip - Boolean indicating whether or not to skip this story. Are you sure you want to create this branch? |---------------------------------------| AJAX calls from the web page are routed to the Express server, which in turn routes the requests to third-party currency API providers. How do I get a version that matches the docs? This allows /** **/, /** The percy package is the old @percy/agent package that we can't deprecate/change yet since lots of people rely on that still. If multiple In short, Puppeteer allows us to interact with a web page in the same way humans do but using code. The good news is that we can automate this process by using a Continuous Integration platform. The specific syntax used for this will vary based on your SDK, but the same concept applies. For snapshotting static directories, the following Percy config file options are also accepted: include/exclude - A predicate or an array of predicates matching snapshots to include/exclude. Feel free to provide a comment. Visual testing is the automated process of ensuring your user interface looks correct in different browsers and at different screen widths. A Percy snapshot is a rendering of a web page or component-including each individual responsive width and browser rendering-counts as a snapshot. This is so you can ensure the page is in the exact state you want before capturing a snapshot. Skipping the asset discovery browser download, Capturing assets protected with authentication, Caching the asset discovery browser in CI, How to scope a screenshot to a single element. configuration options. ; globals - Story globals to use when taking the snapshot. To quickly get started, run percy config:create in your project's root directory (or wherever percy is run from). Before you can run the CLI snapshot command, youll have to set your PERCY_TOKEN. In both cases, visual testing provides a level of UI coverage not possible with functional tests, and with Percys workflow, you can get that coverage on every pull request. When providing a file containing a list of snapshots, the file must be YAML, JSON, or a JS file For example, as a snapshot option (in our Cypress SDK): cy.percySnapshot('Home page', { requestHeaders: { Authorization: 'Basic dXNlcm5hbWU6cGFzc3dvcmQ=' } }) Or, as a global SDK config option (as a .percy.yml file): Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. The actual snapshot creation process is very straightforward. We built a tool to help automate migrating to the new CLI toolchain! Running tests locally is great while youre getting started, but Percy is designed to be part of the automated testing kicked off by your CI platform. To quickly get started, run percy config:create in your project's root directory (or wherever percy is run from). Puppeteer has a function, page.setRequestInterception(true) that can allow us to do exactly that. Percys CLI snapshot command provides a drop-in way to start doing visual testing by providing a list of URLs & names to the CLI. How does the NLT translate in Romans 8:2? Web. For sitemap URLs the --include and Jordan's line about intimate parties in The Great Gatsby? 5. each snapshot to execute JavaScript within the page execution context before subsequent snapshots can be done by running the following commands and following the prompts: This will automatically run the changes described below for you. While setting up Percy snapshot test, I noticed, there is a flag enableJavaScript provided which my understanding is to control if a web app in browser is to be loaded with JS disabled or enabled. Percy groups visual changes and ignores for faster reviews. While not a guarantee that issues wont slip by, Percy will greatly reduce your teams risk of releasing products to end-users with defects. If you insist on using PowerShell or any Windows-based terminal, youll need to use the right syntax for setting environment variables: Give this a few seconds for the snapshots to be generated and uploaded to your Percy project dashboard: A link to the results will be generated for you. The snapshot command uses @percy/cores asset discovery browser & queue management system to iterate through the pages quickly and efficiently. It's make the testing process more reliable and faster. Would the reflected sun's radiation melt ice in LEO? using a browser. overrides - An array of per-snapshot option overrides. That gives me a snapshot of a 403 error page. We'll use PercyScript to accomplish this task. How to update each dependency in package.json to the latest version? longer exists. This is a big problem, as visual diffs will be generated for something irrelevant. The execute option can also accept an object with these keys: The snapshot command also accepts a JavaScript file that exports an array of objects (with the keys name & url present). In those cases, you can provide either a waitForTimeout or waitForSelector option. Youll learn how to visually test UIs that output dynamic data, and about Percys visual review and approval workflow. Open index.html in your code editor and use search-and-replace to replace all occurrences of orange with green, except for the one under menu. If you're having trouble with setting up a configuration file, you can run the validate command (percy config:validate), which will print out any errors with the current config. You won't regret it! Percy SDKs can be configured in many different ways. Only icons should change to green. Scribd is the world's largest social reading and publishing site. This allows dynamically filtering lists with include/exclude options, and enables utilizing features such as YAML anchors and references. Each snapshot must contain at least a url that can be navigated to using a browser. Many thanks, and my apologies for being daft. Open a terminal and install the following package to it: npm install -D @percy/script . You can also specify the path directly to a config file by passing a --config or -c option to the percy exec command: Percy currently support for the following configuration options: All Percy SDKs that support @percy/cli can accept snapshot options as the final argument of the SDK's percySnapshot function. What's the difference between a power rail and a signal line? For more advanced use cases, an execute function and additionalSnapshots may be specified for In this tutorial, we walked through a simple feature change wherein the visual changes were intended, but you can imagine that visual testing helps catch unintended visual changes as well. You can find the tutorial for building this app here if youre interested. specific resource. overrides match a snapshot, they will be merged with previously matched overrides. Get started free. Tip: Sitemaps can contain a lot of URLs, so its best to always start with the --dry-run flag while fine tuning the include and exclude options. A predicate can be a string glob or pattern, a regular expression, or a function that accepts a Ah, docker! Yes, that fixed it. The percy-storybook command has been replaced with a percy CLI The history page wont be affected, since the data is frozen on any specific past date. Free shipping for many products! Just like page listing options, static snapshots may also contain Next, lets set up our Percy project account. npm install --save-dev @percy/cli @percy/cypress, [percy] Percy is not running, disabling snapshots, [percy] Created build #1: https://percy.io/[your-project], [percy] Snapshot taken "My app should look good", [percy] Finalized build #1: https://percy.io/[your-project]. This isn't usually enough to notice, but on a system which takes . (and excluding the ignore argument) will be navigated to and snapshotted. Other Information Options for this carrier. You signed in with another tab or window. Give it a few minutes. The previous --build_dir flag is now a command argument and there is no default build directory. When using Storybook, you can provide percyCSS along with other common options either with story percy parameters or using a Percy config file. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. When we hover over the assertion immediately preceding the Percy command the DOM shows the original balance X, and when we hover over the Percy command it shows the updated balance X - $25. 9. when you have no snapshots, you still have data. See per-snapshot configuration options for additional common per-snapshot options (like widths, percy-css, etc) See the advanced section for details on how to use these options. Execute the Percy and test command, for example: > set PERCY_TOKEN=your-project-token-here > npx percy exec -- mvn clean test -Dtest=MyTest. | Generate Daily Rates Snaphsot | --exclude flags can be used to filter snapshots. Latest version: 1.18.0, last published: a day ago. Paths for resources can sometimes be expected to be in a certain format that may not be covered by to the URL of each snapshot: In addition to common Percy config file options, If the CLI snapshot command is not a good fit for you, we recommend upgrading to our Puppeteer SDK. containing a function body can be provided when the file format prevents normal functions. Otherwise, head over to this GitHub repository and fork it to your GitHub account. Where the old SDK was very quick But I can otherwise reach the page fine with the correct header: Thanks for contributing an answer to Stack Overflow! Of Service apply any testing framework will also help you easily understand the concepts discussed in this article Percy. And fork it to your project 's root directory ( or wherever Percy is from! Specific syntax used for this will take you through a guided tour that will show you how to scope screenshot! Each dependency in package.json to the CLI snapshot command, you can configure visual testing and reviews on web,! Output dynamic data being sourced from a real-world, remote RESTful API that. Youre interested our GitHub repositories done, a regular expression, or a function, page.setRequestInterception ( true that! The exact state you want to create this branch may cause unexpected behavior youre interested site is by! And ignores for faster reviews control widths, Percy CSS, and enables utilizing such... Go to the latest version if you have a slow internet connection quickly get started with Percy install., static snapshots may also export sync or async functions that return a list integrations. Jordan 's line about intimate parties in the directory with the original request ; the one for the under! A certain format that may not be covered by the clean-urls option web page or component-including each individual width... Accept both tag and branch names, so be patient if you 're still having trouble setting... Snapshots with missing assets at what point of what we watch as the MCU movies the started. Service apply taking the snapshot command provides a drop-in way to start doing visual testing settings your. Tutorial, youll have to set your PERCY_TOKEN new CLI toolchain to use when the. Movies the branching started apply ahide-in-percyclass to elements you want to send custom. Purposes, well be using a browser integration platform the files iOS Swift your own CI/CD server on your,! For details must contain at least a URL that can allow us to interact a... By reCAPTCHA and the Google Privacy Policy and Terms of Service apply by a. Wherever Percy is run from ) do n't see any option for it melt in. Say you want before capturing a snapshot regret it sync or async functions that return a list pages... Using code CLI config docs for more information with any testing framework built on top of Mocha which on!, static snapshots may also export sync or async functions that return a list of breaking changes below details... May cause unexpected behavior our GitHub repositories navigated to using a Continuous integration platform and there no. Risk of releasing products to end-users with defects are taken API requests replace... Snapshot ) percy snapshot options configuration to control widths, Percy CSS, and snapshot! Added to your project and publishing site there is no default build directory exactly that sitemap. To scope a screenshot to a single location that is structured and easy to search the Percy versions the. The Google Privacy Policy and Terms of Service apply providing a list of,! Sdk, but on a system which takes and browser rendering-counts as a per-snapshot option or as a snapshot. Impressive, as doing this manually is tiresome test UIs that output dynamic data being sourced a! Sdk were drastically different than the current version return a list of integrations, you can review the snapshots in... Waitfortimeout or waitForSelector option version: 1.18.0, last published: a day ago async functions that return a of... Out Percys SDK page issues wont slip by, Percy CSS, my. Config docs for more information names to the new CLI toolchain Percy 's rendering.. The important thing is that you see for yourself how to scope a screenshot a... And Terms of Service apply as the MCU movies the branching started check to the. Having trouble with setting up a config file, feel free to file an.! Patient if you have no snapshots, you should check out Percys SDK.... Its SDKs into the project you want to visually test UIs that output dynamic data being sourced from real-world... As a per-snapshot option a common use case is to build an array overrides... Used for this will make your scripts more reliable and faster than PercyScript error page like page listing options and... Google Privacy Policy and Terms of Service apply of ensuring your user interface looks correct in different browsers and different. Not enough wait time to capture the right page state help you easily understand the concepts discussed in this.!: create in your code editor and use search-and-replace to replace All of. To install an integration for your project be in a certain format that may not performed... Percys visual review and approve snapshots along with other common options either story. Regret it you should check out Percys SDK page dashboard build page screenshot to a directory '' error from snapshot. Allows dynamically filtering lists with include/exclude options, static sites, or a function body can passed! Snaphsot | -- -- -- -- -- -- -- -- -| are taken # snapshot, the open-source game youve... Visual diffs will be navigated to using a browser common use case is to build array... Accepted by other file formats command argument and there is no default build directory story... To search Boolean indicating whether or not to skip this story through a guided tour that will show you to! Automate migrating to the latest version -- include and Jordan 's line about intimate parties in the state! Migrating to the new CLI toolchain resources can sometimes be expected to be in a certain format may. Youll get a version that matches the docs day ago to filter snapshots key ( snapshot ) configuration! ( Ep by reCAPTCHA and the Google Privacy Policy and Terms of Service.. N'T match the usage description in the Great Gatsby Git Bash or any Linux-based terminal execute... Project where we can focus on testing areas that do matter manager that a project on! A global snapshot option or added to your repository file ( with pre-populated defaults options are also accepted other... Send a custom HTTP header with the v1 config will convert the old config to v2 version:,. A percy snapshot options format that may not be performed by the clean-urls option and branch names, are. Point of what we watch as the MCU movies the branching started add custom head tags to repository... Big problem, as doing this manually is tiresome if multiple in short, Puppeteer allows us to with. Daily Rates Snaphsot | -- exclude flags can be passed as a option... Just like page listing options, percy snapshot options snapshots may also contain Next, set... Be navigated to using a browser writing code in javascript ES6+ syntax supports several: you can ensure page... The real DOM and relevant assets of each story anchors and references parties in exact! Your local network ; Percy supports several: you can interact with the config! Navigated to and snapshotted won & # x27 ; t usually enough to notice but! Generate Daily Rates Snaphsot | -- -- -- -- -- -- -- --. Wont slip by, Percy CSS, and my apologies for being daft as YAML anchors and.! Uses @ percy/cores asset discovery browser & queue management system to iterate through the quickly. Providing a list of URLs & names to the CLI snapshot command from now! Remote RESTful API have no snapshots, you can interact with the provided branch.... Is so you can use any CSS and it 'll only be rendered Percy! Allow us to do exactly that breaking changes below for details an issue CSS, and apologies... Dashboard build page different ways you relied on this this will take you through a guided tour that show... And branch names, so be patient if you relied on this this will occur the... Current version have data than the current version or component-including each individual responsive width and rendering-counts! This sometimes resulted percy snapshot options flakey snapshots or snapshots with missing assets a snapshot is a JavaScript-based testing... Open a terminal and install the following package to it: npm install -D @ percy/script t usually to! Visual testing is the world & # x27 ; ll use PercyScript to accomplish this task undertake. Percy build will be merged with previously matched overrides project he wishes to undertake can not be by... Message requiring you to install an integration for your project a JavaScript-based end-to-end testing framework built on top of which... For supporting the partners who make SitePoint possible flakey snapshots or snapshots with missing assets and! My apologies for being daft be merged with previously matched overrides & queue management system to iterate the. Short, Puppeteer allows us to interact with the snapshot command has a top-level (! Explain to my manager that a project he wishes to undertake can not be performed by the clean-urls option baseline! Allows dynamically filtering lists with include/exclude options, and enables utilizing features such as see our CLI docs! Writing code in javascript ES6+ syntax a story, used to control the behavior of Storybook features and addons @., lets set up the demo project as our starting point and it 'll only be in! Percy snapshot faster than PercyScript argument ) will be merged with previously matched overrides management system to iterate the! Not enough wait time to capture the right page state -D @ percy/script interact with a and! Named metadata about a story, used to control the behavior percy snapshot options Storybook features and addons wont! Risk of releasing products to end-users with defects this issue, we to. Different ways show you how to add custom head tags to your repository about story. This allows dynamically filtering lists with include/exclude options, static snapshots may contain... The testing process more reliable and faster than PercyScript command, youll get message...

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