consolidate tests into single swift-hello-world test

This exercises the test and C++ interop package and feature, respectively

Author: lhoward

recipes-test/swift-hello-world/files/Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.6
+// swift-tools-version:6.0
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription
@@ -12,8 +12,16 @@ let package = Package(
     targets: [
         // Targets are the basic building blocks of a package. A target can define a module or a test suite.
         // Targets can depend on other targets in this package, and on products in packages which this package depends on.
-        .target(
+        .executableTarget(
             name: "hello-world",
-            dependencies: [])
+            dependencies: [],
+            swiftSettings: [
+                .swiftLanguageMode(.v5),
+                .interoperabilityMode(.Cxx),
+            ]
+        ),
+        .testTarget(
+            name: "hello-world-test",
+            dependencies: []),
     ]
 )

recipes-test/swift-hello-world/files/Sources/hello-world/main.swift

@@ -1,10 +1,11 @@
 import Foundation
 import Dispatch
 import Glibc
+import CxxStdlib
 
 func main() async throws {
     print("Hello, world! 👋")
-    try await Task.sleep(1_000_000_000)
+    try await Task.sleep(for: .seconds(1))
     print("User: \(ProcessInfo.processInfo.fullUserName)")
     let dateFormatter = DateFormatter()
     dateFormatter.dateStyle = .full

recipes-test/swift-hello-world/files/Tests/hello-world-test/hello-world-test.swift

@@ -0,0 +1,8 @@
+import XCTest
+import Testing
+
+final class TestTest: XCTestCase {
+    func testSomething() {
+        XCTAssertEqual(true, true)
+    }
+}

recipes-test/swift-hello-world/files/Tests/hello-world-tests/test.swift

@@ -0,0 +1,7 @@
+import XCTest
+
+final class TestTest: XCTestCase {
+  func testEqual() throws {
+    XCTAssertEqual(true, true)
+  }
+}

recipes-test/swift-hello-world/swift-hello-world.bb

@@ -1,8 +1,23 @@
-DESCRIPTION = "swift 5.6.1 test application"
+DESCRIPTION = "Swift Hello World!"
 LICENSE = "CLOSED"
 
-SRC_URI = "file://Sources/hello-world/main.swift \
-           file://Package.swift \
+SWIFT_BUILD_TESTS = "1"
+
+RDEPENDS:${PN} += "swift-xctest swift-testing"
+
+SRC_URI = "\
+    file://Package.swift \
+    file://Sources \
+    file://Tests \
 "
 
+S = "${WORKDIR}/git"
+B = "${WORKDIR}/build"
+
 inherit swift
+
+do_install() {
+    install -d ${D}${bindir}
+    install -m 0755 ${BUILD_DIR}/hello-world ${D}${bindir}
+    install -m 0755 ${BUILD_DIR}/hello-worldPackageTests.xctest ${D}${bindir}
+}