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Generic XCTest'ing components for conformance to protocols. #44

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dabrahams opened this issue May 25, 2020 · 1 comment
Open

Generic XCTest'ing components for conformance to protocols. #44

dabrahams opened this issue May 25, 2020 · 1 comment

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@dabrahams
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It's super easy to build what you assume to be a correct model of a protocol and have it function perfectly well in tests of other components but also be utterly broken. You need to test the semantics of all the protocol requirements, and doing that for a commonly-modeled protocol like Collection is tedious and error-prone. We need a set of testing components for common protocols akin to what's in https://github.com/apple/swift/tree/master/stdlib/private/StdlibCollectionUnittest but based on XCTest.
@dabrahams
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Started one here: https://github.com/tensorflow/swift-apis/blob/0b0329b5c97865d46f7b063dfd4603f4b7d30cd9/Tests/TensorFlowTests/CollectionTesting.swift

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@dabrahams