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Test automation : How to compare images in UnitTest #89

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muukii opened this issue Mar 31, 2021 · 1 comment

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muukii commented Mar 31, 2021

adds unit tests that compare result image and expected image.

How do I compare images?

Metrics:

Color space, wide-color
Orientation
Performance
Cropping
loading MTLTexture
resizing

muukii added the help wanted label

muukii changed the title ~~Test automation~~ Test automation : How to compare images in UnitTest

denisenepraunig commented Dec 11, 2021

Hello!

What about using a Snapshot library like https://github.com/pointfreeco/swift-snapshot-testing - you can record your desired images and then those will be used as a reference in a normal unit test.

I've been using this for UI testing at work - like checking if labels are still in the correct position.

You can define also threshold or so.

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