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Created July 28, 2020 12:22
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FB7828757.md

FB7828757

LocalizedStringKey equatable doesn't work as expected

It can be useful to assert again LocalizedStringKey in unit tests. Sometimes there is significant logic that goes into constructing a localized string and so it’s good to be able to write tests against that.

However, as soon as you apply some formatting to a string it seems to break equatability:

LocalizedStringKey("\(1)") == LocalizedStringKey("\(1)") // false

That is false when it seems reasonable that it would be true.

Ideally not only would that work, but you should also be able to test a non-formatted string against a formatted string so that you can verify that your logic executed correctly:

LocalizedStringKey("1") == LocalizedStringKey("\(1)") // false

But that is false too.

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