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Add Percy visual regression testing #2551

Merged
merged 6 commits into from
Feb 24, 2022
Merged

Add Percy visual regression testing #2551

merged 6 commits into from
Feb 24, 2022

Commits on Feb 24, 2022

  1. Install @percy/cli and run tests using percy 

    This installs the @percy/cli that we need to run our tests using Percy.
Follows the Percy documentation https://docs.percy.io/docs/puppeteer

This commit does not include setting up our Puppeteer tests to capture
any Percy snapshots - this commit installs what we need, ready to go.
    Vanita Barrett committed Feb 24, 2022
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  2. Install @percy/puppeteer and setup tests to capture snapshots 

    Adds a test which takes a snapshot of each component 'default' example.
    Vanita Barrett committed Feb 24, 2022
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  3. Include snapshots with JavaScript disabled 

    Enhances the test we added in the previous commit, so that we're now
generating snapshots of each component 'default' example when JavaScript
is enabled and when it's disabled.

We need to make sure each snapshot has a unique name, so we prefix the snapshot name
with text to indicate whether it was taken with JavaScript enabled or disabled.
    Vanita Barrett committed Feb 24, 2022
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  4. Add documentation for Percy visual regression testing 

    Add documentation to explain how we use Percy, who is responsible for
reviewing it, and what screenshots are taken.
    Vanita Barrett committed Feb 24, 2022
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  5. Add documentation for PRs from forks

    Vanita Barrett committed Feb 24, 2022
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  6. Docs improvements from review

    Vanita Barrett committed Feb 24, 2022
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