Failed to add binary version of framework in Xcode 13

[ton252]

In our team we have no opportunity to import swift-snapshot-testing using GitHub.
And we decided to build a binary version of xcframework and put it inside project. But when we upgraded Xcode to 13 version it stoped working.

We set property Build for distribution = YES in project. Here is a script, that we use to build xcframework:

xcodebuild archive \
 -scheme SnapshotTesting_iOS \
 -archivePath "./build/ios.xcarchive" \
 -sdk iphoneos \
 BUILD_LIBRARY_FOR_DISTRIBUTION=YES \
 SKIP_INSTALL=NO

# iOS simulator

xcodebuild archive \
 -scheme SnapshotTesting_iOS \
 -archivePath "./build/ios_sim.xcarchive" \
 -sdk iphonesimulator \
 BUILD_LIBRARY_FOR_DISTRIBUTION=YES \
 SKIP_INSTALL=NO

 # macOS

xcodebuild archive \
 -scheme SnapshotTesting_macOS \
 -archivePath "./build/macos.xcarchive" \
 BUILD_LIBRARY_FOR_DISTRIBUTION=YES \
 SKIP_INSTALL=NO

 # tvOS

 xcodebuild archive \
 -scheme SnapshotTesting_tvOS \
 -archivePath "./build/tvos.xcarchive" \
 BUILD_LIBRARY_FOR_DISTRIBUTION=YES \
 SKIP_INSTALL=NO

Pack to xcframework

 xcodebuild -create-xcframework \
  -framework "./build/ios.xcarchive/Products/Library/Frameworks/SnapshotTesting.framework" \
  -framework "./build/ios_sim.xcarchive/Products/Library/Frameworks/SnapshotTesting.framework" \
  -framework "./build/macos.xcarchive/Products/Library/Frameworks/SnapshotTesting.framework" \
  -output "./build/SnapshotTesting.xcframework"

and this is an error message:

Failed to build module 'SnapshotTesting'; this SDK is not supported by the compiler (the SDK is built with 'Apple Swift 
version 5.4.2 (swiftlang-1205.0.28.2 clang-1205.0.19.57)', while this compiler is 'Apple Swift version 5.5.1 (swiftlang-
1300.0.31.4 clang-1300.0.29.6)'). Please select a toolchain which matches the SDK.

'XCTAttachment' is not a member type of class 'XCTest.XCTest'
'XCTestCase' is not a member type of class 'XCTest.XCTest'

[ton252]

I don't know why, but the problem is in this lines:

public var diff: (Value, Value) -> (String, [XCTAttachment])?

public typealias SnapshotTestCase = XCTestCase

  init(
    toData: @escaping (_ value: Value) -> Data,
    fromData: @escaping (_ data: Data) -> Value,
    diff: @escaping (_ lhs: Value, _ rhs: Value) -> (String, [XCTAttachment])?

[ton252]

The same thing is here: Quick/Quick#961

[mariusfanu]

@ton252 did you find any solution to this?

[ton252]

@mariusfanu The only solution (dirty) that I found is to hide any public declaration of XCTestCase XCTAttachment.
For example change XCTAttachment to Any and check type inside function (I know this is a dirty way)

[mariusfanu]

Yes, that's not ideal, thanks for the response

[osrufung]

I solved this by using swift-create-framework tool and this xcodebuild argument (ENABLE_TESTING_SEARCH_PATHS):

swift create-xcframework --package-path . --stack-evolution --configuration debug --output xcframeworks-debug --platform ios --xc-setting ENABLE_TESTING_SEARCH_PATHS=YES

[Nikoloutsos]

@osrufung Using ENABLE_TESTING_SEARCH_PATHS=YES allowed me to generate an xcframework but when added in test target i am getting similar error.

'XCTAttachment' is not a member type of class 'XCTest.XCTest'

Any idea?

[rcasula]

@Nikoloutsos I had the same issue recently. I tried to edit manually the abi and swiftinterface files by replacing XCTest.XCT with XCT,
Basically removing every reference to XCTest.

It seems working for me with this.

[Nikoloutsos]

@rcasula Exactly that is how I made it work, wondering why pointfreeco do not expose an xcframework by default on the tag release artifacts 🤔