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Unleash is the open source feature toggle service.
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Thomas Heartman 215608c4b2
chore: make feature.spec and segements.spec more resilient (#7289)
This PR attempts to make the feature.spec and segements.spec test suites
more reliable. They have been flaking out a lot recently, and this will
hopefully make them less flaky.

The way of handling it is a little different for each test suite.

## feature.spec

Some of the failures we're seeing for the feature/feauture.spec test
suite are due to uncaught resize observer issues (possibly triggered by
the banners).

We can ignore these errors as they don't impact functionality, only
rendering, and are likely to resolve themselves quickly in real-world
scenarios.

On the other hand, it might also ignore actual errors, so I'm not a 100%
on this. Would love some input.

However, MDN has some info on [observation
errors](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver#observation_errors):

> As long as the error event does not fire indefinitely, resize observer
will settle and produce a stable, likely correct, layout. However,
visitors may see a flash of broken layout, as a sequence of changes
expected to happen in a single frame is instead happening over multiple
frames.

Based on that, I think this is a pretty safe error to ignore. 

I'm unsure whether catching this exception is only set in the `after`
cleanup or whether it pollutes the cy object for all tests, but I think
it's fine either way. But if you have ideas, I'd love to hear them.

## segments.spec

The issue here appears to be that when we first input the segment's name
in the form, it takes a little time for the UI to become ready, so the
first characters of the string are cut off.

This is a known [issue that the cypress team are
aware](https://github.com/cypress-io/cypress/issues/3817), but that
isn't likely to get fixed any time soon because no one can give them a
reproducible example.

You can see the effect of this on segments that haven't been cleaned up
in the preview:

![image](https://github.com/Unleash/unleash/assets/17786332/1db59906-a2ee-4149-869b-81f2245b4399)

To work around it, we add a 500ms wait before we start filling out the
form. Yes, adding [waits in your tests is an
antipattern](https://docs.cypress.io/guides/references/best-practices#Unnecessary-Waiting),
but it's the easiest way around in this case.

We *could* investigate and find a way not to need that, but that would
likely be a much larger project. This appears to mitigate the issue
immediately, so is at least a pretty good temporary fix in my opinion.
We also already do this in other tests, so there is a precedent for it.
2024-06-07 08:37:53 +02:00
.do
.floe
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.vscode
coverage
docker
docs/api/oas
examples feat: update docs to match v4. 2021-05-18 11:19:33 +02:00
frontend chore: make feature.spec and segements.spec more resilient (#7289) 2024-06-07 08:37:53 +02:00
scripts Updated scripts to use owner (#5341) 2023-11-27 07:55:03 +00:00
src
test-migrations
website fix(deps): update react monorepo to v18.3.1 (#7318) 2024-06-07 01:28:23 +00:00
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CODE_OF_CONDUCT.md Proposed version 2.1 2023-05-16 15:14:03 +02:00
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What is Unleash?

Unleash is a powerful open source solution for feature management. It streamlines your development workflow, accelerates software delivery, and empowers teams to control how and when they roll out new features to end users. With Unleash, you can deploy code to production in smaller, more manageable releases at your own pace.

Feature flags in Unleash let you test your code with real production data, reducing the risk of negatively impacting your users' experience. It also enables your team to work on multiple features simultaneously without the need for separate feature branches.

Unleash is the most popular open source solution for feature flagging on GitHub. It supports 15 official client and server SDKs and over 15 community SDKs. You can even create your own SDK if you wish. Unleash is compatible with any language and framework.


Getting Started with Unleash

1. Setting Up Unleash

To get started with Unleash, you need git and docker installed on your machine.

Execute the following commands:

git clone git@github.com:Unleash/unleash.git
cd unleash
docker compose up -d

Then point your browser to localhost:4242 and log in using:

  • username: admin
  • password: unleash4all

If you'd rather run the source code in this repo directly via Node.js, see the step-by-step instructions to get up and running in the contributing guide.

2. Connect your SDK

Find your preferred SDK in our list of official SDKs and import it into your project. Follow the setup guides for your specific SDK.

If you use the docker compose file from the previous step, here's the configuration details you'll need to get going:

  • For front-end SDKs, use:
    • URL: http://localhost:4242/api/frontend/
    • clientKey: default:development.unleash-insecure-frontend-api-token
  • For server-side SDKs, use:
    • Unleash API URL: http://localhost:4242/api/
    • API token: default:development.unleash-insecure-api-token

If you use a different setup, your configuration details will most likely also be different.

Check a feature flag

Checking the state of a feature flag in your code is easy! The syntax will vary depending on your language, but all you need is a simple function call to check whether a flag is available. Here's how it might look in Java:

if (unleash.isEnabled("AwesomeFeature")) {
  // do new, flashy thing
} else {
  // do old, boring stuff
}

Run Unleash on a service?

If you don't want to run Unleash locally, we also provide easy deployment setups for Heroku and Digital Ocean:

Deploy to Heroku Deploy to DigitalOcean

Configure and run Unleash anywhere

The above sections show you how to get up and running quickly and easily. When you're ready to start configuring and customizing Unleash for your own environment, check out the documentation for getting started with self-managed deployments, Unleash configuration options, or running Unleash locally via docker.


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We know that learning a new tool can be hard and time-consuming. We have a growing community that loves to help out. Please don't hesitate to reach out for help.

Join Unleash on Slack

💬 Join Unleash on Slack if you want ask open questions about Unleash, feature toggling or discuss these topics in general.

💻 Create a GitHub issue if you have found a bug or have ideas on how to improve Unleash.

📚 Visit the documentation for more in-depth descriptions, how-to guides, and more.

📖 Learn more about the principles of building and scaling feature flag solutions.


Contribute to Unleash

Unleash is the largest open source feature flag solution on GitHub. Building Unleash is a collaborative effort, and we owe a lot of gratitude to many smart and talented individuals. Building it together with the community ensures that we build a product that solves real problems for real people. We'd love to have your help too: Please feel free to open issues or provide pull requests.

Check out the CONTRIBUTING.md file for contribution guidelines and the Unleash developer guide for tips on environment setup, running the tests, and running Unleash from source.

Contributors

The Unleash contributors


Features our users love

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Architecture

Read more in the system overview section of the Unleash documentation.


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To connect your application to Unleash you'll need to use a client SDK for your programming language.

Official server-side SDKs:

Official front-end SDKs:

The front-end SDKs connects via the Unleash Proxy in order to ensure privacy, scalability and security.

Community SDKs:

If none of the official SDKs fit your need, there's also a number of community-developed SDKs where you might find an implementation for your preferred language (such as Elixir, Dart, Clojure, and more).


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Proud Open-Source users: (send us a message if you want to add your logo here)

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Unleash has evolved significantly over the past few years, and we know how hard it can be to keep software up to date. If you're using the current major version, upgrading shouldn't be an issue. If you're on a previous major version, check out the Unleash migration guide!


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