some changes, including executing tests sequentially

Author: bkhouri

Sources/_InternalTestSupport/misc.swift

@@ -11,7 +11,6 @@
 //===----------------------------------------------------------------------===//
 
 import Foundation
-import XCTest
 import Basics
 import struct Foundation.URL
 #if os(macOS)
@@ -30,6 +29,7 @@ import struct SPMBuildCore.BuildParameters
 import TSCTestSupport
 import Workspace
 import func XCTest.XCTFail
+import func XCTest.XCTSkip
 
 import struct TSCBasic.ByteString
 import struct Basics.AsyncProcessResult

Utilities/README.md

@@ -6,7 +6,7 @@ Here are some steps the worked running on Windows.
 2. Launch a `Powershell.exe` session
 3. Run the following in power shell to start a container running the nightly toolchain
     ```
-    docker run --rm --interactive --tty swiftlang/swift:nightly-main-windowsservercore-1809 powershell.exe
+    docker run --pull always --rm --interactive --tty swiftlang/swift:nightly-main-windowsservercore-1809 powershell.exe
     ```
 4. When the container start, clone the "merged" PR to `C:\source`
     ```
@@ -20,5 +20,5 @@ Here are some steps the worked running on Windows.
     ```
 5. Run the CI pipeline script
     ```
-    python C:\source\Utilities\build-using-self
+    python C:\source\Utilities\build-using-self  --enable-swift-testing --enable-xctest
     ```

Utilities/build-using-self

@@ -157,7 +157,7 @@ def main() -> None:
         swift_testing_arg= "--enable-swift-testing" if args.enable_swift_testing else ""
         xctest_arg= "--enable-xctest" if args.enable_swift_testing else ""
         call(
-            shlex.split(f"swift test --configuration {args.config} --parallel {swift_testing_arg} {xctest_arg}"),
+            shlex.split(f"swift test --configuration {args.config} {swift_testing_arg} {xctest_arg}"),
         )
 
     with change_directory(REPO_ROOT_PATH / "IntegrationTests"):
@@ -166,7 +166,7 @@ def main() -> None:
         )
         call(
             shlex.split(
-                f"{swiftpm_bin_dir / 'swift-test'} --parallel",
+                f"{swiftpm_bin_dir / 'swift-test'}",
                 posix=(os.name == "posix"), # must be set correctly, otherwhsie shlex.split("C:\\Foo\\bar") become ['CFoobar']
             ),
         )