Working

Author: natecook1000

.github/workflows/pull_request.yml

@@ -8,8 +8,15 @@ jobs:
   tests:
     name: Test
     uses: swiftlang/github-workflows/.github/workflows/swift_package_test.yml@main
+    with:
+      linux_exclude_swift_versions: '[{"swift_version": "5.9"}, {"swift_version": "5.10"}]'
+      windows_exclude_swift_versions: '[{"swift_version": "5.9"}]'
+      enable_macos_checks: true
+      macos_exclude_xcode_versions: '[{"xcode_version": "16.0"}, {"xcode_version": "16.1"}]'
   soundness:
     name: Soundness
     uses: swiftlang/github-workflows/.github/workflows/soundness.yml@main
     with:
       license_header_check_project_name: "Swift.org"
+      unacceptable_language_check_enabled: false
+      

Sources/TestSupport/TestSupport.swift

@@ -15,7 +15,7 @@ import XCTest
 // *without* `-disable-availability-checking` to ensure the #available check is
 // not compiled into a no-op.
 
-#if os(Linux) || os(Android)
+#if os(Linux) || os(Android) || os(Windows)
 public func XCTExpectFailure(
   _ message: String? = nil, body: () throws -> Void
 ) rethrows {}