Add swift test --no-parallel
#7231
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This PR makes the `--parallel` flag on the swift-test subtool invertible with a "no" prefix.
We want swift-testing to default to enabling parallelization, but we don't want to break XCTest (which for historical reasons strongly prefers serial testing.) Deprecating `--parallel` and replacing it with `--{enable,disable}-parallelism` or similar seems a bit heavy-handed. Swift Argument Parser gives us the option to use a "no" prefix instead which means that the existing `--parallel` option will continue to work as intended.
grynspan
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neonichu,
tomerd and
MaxDesiatov
as code owners
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@swift-ci please test |
grynspan
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Jan 5, 2024
This PR enables parallelization by default when using `swift test` and enables support for the `--no-parallel` flag in `swift test` added in swiftlang/swift-package-manager#7231. The default value of `Configuration.isParallelizationEnabled` remains `false`. Other adopters are free to enable or disable parallelization by default. `XCTestScaffold` is not affected. It is a shim used with XCTest in Swift 5.10 only and expects serial execution of tests.
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grynspan
added a commit
to swiftlang/swift-testing
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Jan 6, 2024
This PR enables parallelization by default when using `swift test` and enables support for the `--no-parallel` flag in `swift test` added in swiftlang/swift-package-manager#7231. The default value of `Configuration.isParallelizationEnabled` remains `false`. Other adopters are free to enable or disable parallelization by default. `XCTestScaffold` is not affected. It is a shim used with XCTest in Swift 5.10 only and expects serial execution of tests.
MaxDesiatov
approved these changes
Jan 8, 2024
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This PR makes the
--parallelflag on the swift-test subtool invertible with a "no" prefix.We want swift-testing to default to enabling parallelization, but we don't want to break XCTest (which for historical reasons strongly prefers serial testing.) Deprecating
--paralleland replacing it with--{enable,disable}-parallelismor similar seems a bit heavy-handed. Swift Argument Parser gives us the option to use a "no" prefix instead which means that the existing--paralleloption will continue to work as intended.Support for
--no-parallelin swift-testing is here: swiftlang/swift-testing#174