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https://github.com/percy/percy-capybara
Visual testing for Capybara with Percy.
https://github.com/percy/percy-capybara
capybara percy percy-agent percy-capybara percy-sdk rails ruby visual-testing
Last synced: 2 months ago
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Visual testing for Capybara with Percy.
- Host: GitHub
- URL: https://github.com/percy/percy-capybara
- Owner: percy
- License: mit
- Created: 2015-05-17T04:48:37.000Z (over 9 years ago)
- Default Branch: master
- Last Pushed: 2024-04-29T15:40:35.000Z (9 months ago)
- Last Synced: 2024-04-29T16:58:09.512Z (9 months ago)
- Topics: capybara, percy, percy-agent, percy-capybara, percy-sdk, rails, ruby, visual-testing
- Language: Ruby
- Homepage: https://docs.percy.io/docs/capybara
- Size: 568 KB
- Stars: 44
- Watchers: 11
- Forks: 25
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- License: LICENSE
- Codeowners: CODEOWNERS
Awesome Lists containing this project
README
# percy-capybara
[](https://badge.fury.io/rb/percy-capybara)
[Percy](https://percy.io) visual testing for Ruby Selenium.
## Installation
npm install `@percy/cli`:
```sh-session
$ npm install --save-dev @percy/cli
```
gem install `percy-capybara` package:
```ssh-session
$ gem install percy-capybara
```
## Usage
In your test setup file, require `percy/capybara`. For example if you're using
rspec, you would add the following to your `spec_helper.rb` file:
``` ruby
require 'percy/capybara'
```
Now you can use `page.percy_snapshot` to capture snapshots.
> Note: you may need to add `js: true` to your specs, depending on your driver setup
```ruby
describe 'my feature, type: :feature do
it 'renders the page' do
visit 'https://example.com'
page.percy_snapshot('Capybara snapshot')
end
end
```
Running the test above normally will result in the following log:
```sh-session
[percy] Percy is not running, disabling snapshots
```
When running with [`percy
exec`](https://github.com/percy/cli/tree/master/packages/cli-exec#percy-exec), and your project's
`PERCY_TOKEN`, a new Percy build will be created and snapshots will be uploaded to your project.
```sh-session
$ export PERCY_TOKEN=[your-project-token]
$ percy exec -- [test command]
[percy] Percy has started!
[percy] Created build #1: https://percy.io/[your-project]
[percy] Snapshot taken "Capybara example"
[percy] Stopping percy...
[percy] Finalized build #1: https://percy.io/[your-project]
[percy] Done!
```
## Configuration
`page.snapshot(name[, options])`
- `name` (**required**) - The snapshot name; must be unique to each snapshot
- `options` - [See per-snapshot configuration options](https://www.browserstack.com/docs/percy/take-percy-snapshots/overview#per-snapshot-configuration)
## Upgrading
### Automatically with `@percy/migrate`
We built a tool to help automate migrating to the new CLI toolchain! Migrating
can be done by running the following commands and following the prompts:
``` shell
$ npx @percy/migrate
? Are you currently using percy-capybara? Yes
? Install @percy/cli (required to run percy)? Yes
? Migrate Percy config file? Yes
? Upgrade SDK to percy-capybara@^5.0.0? Yes
? The Capybara API has breaking changes, automatically convert to the new API? Yes
```
This will automatically run the changes described below for you, with the
exception of changing the `require`.
### Manually
#### Require change
The name of the require has changed from `require 'percy'` to `require
'percy/capybara'`. This is to avoid conflict with our [Ruby Selenium SDK's](https://github.com/percy/percy-selenium-ruby)
require statement.
#### API change
The previous version of this SDK had the following function signature:
``` ruby
Percy.snapshot(driver, name, options)
```
v5.x of this SDK has a significant change to the API. There no longer is a stand
alone module to call and you no longer need to pass the page/driver. It's
available on the current Capybara session (`page`):
``` ruby
page.percy_snapshot(name, options)
```
If you were using this SDK outside of Capybara, you'll likely find the [Ruby
Selenium SDK a better fit](https://github.com/percy/percy-selenium-ruby)
#### Installing `@percy/cli` & removing `@percy/agent`
If you're coming from a 4.x version of this package, make sure to install `@percy/cli` after
upgrading to retain any existing scripts that reference the Percy CLI
command. You will also want to uninstall `@percy/agent`, as it's been replaced
by `@percy/cli`.
```sh-session
$ npm uninstall @percy/agent
$ npm install --save-dev @percy/cli
```
#### Migrating config
If you have a previous Percy configuration file, migrate it to the newest version with the
[`config:migrate`](https://github.com/percy/cli/tree/master/packages/cli-config#percy-configmigrate-filepath-output) command:
```sh-session
$ percy config:migrate
```