replace to Testing from XCTest

.editorconfig

@@ -0,0 +1,9 @@
+# editorconfig.org
+
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = true
+insert_final_newline = true

.gitignore

@@ -1,4 +1,8 @@
 .DS_Store
 /.build
 /Packages
-/*.xcodeproj
+xcuserdata/
+DerivedData/
+.swiftpm/configuration/registries.json
+.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
+.netrc

Package.swift

@@ -1,27 +1,22 @@
-// swift-tools-version:4.0
-// The swift-tools-version declares the minimum version of Swift required to build this package.
+// swift-tools-version:6.0
 
 import PackageDescription
 
 let package = Package(
     name: "Colorizer",
     products: [
-        // Products define the executables and libraries produced by a package, and make them visible to other packages.
         .library(
             name: "Colorizer",
-            targets: ["Colorizer"]),
-    ],
-    dependencies: [
-        // Dependencies declare other packages that this package depends on.
+            targets: ["Colorizer"]
+        ),
     ],
     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(
-            name: "Colorizer",
-            dependencies: []),
+            name: "Colorizer"
+        ),
         .testTarget(
             name: "ColorizerTests",
-            dependencies: ["Colorizer"]),
+            dependencies: ["Colorizer"]
+        ),
     ]
 )

Tests/ColorizerTests/ColorizerTests.swift

@@ -1,45 +1,50 @@
-import XCTest
+import Testing
 @testable import Colorizer
 
-class ColorizerTests: XCTestCase {
-    func testForegroundExtension() {
-        XCTAssertEqual("the string".f.Black, "\u{001B}[30mthe string\u{001B}[0m", "returns a black string")
-        XCTAssertEqual("the string".f.Black, "\u{001B}[30mthe string\u{001B}[0m", "returns a black string")
-        XCTAssertEqual("the string".f.Red, "\u{001B}[31mthe string\u{001B}[0m", "returns a red string")
-        XCTAssertEqual("the string".f.Green, "\u{001B}[32mthe string\u{001B}[0m", "returns a green string")
-        XCTAssertEqual("the string".f.Yellow, "\u{001B}[33mthe string\u{001B}[0m", "returns a yellow string")
-        XCTAssertEqual("the string".f.Blue, "\u{001B}[34mthe string\u{001B}[0m", "returns a blue string")
-        XCTAssertEqual("the string".f.Magenta, "\u{001B}[35mthe string\u{001B}[0m", "returns a magenta string")
-        XCTAssertEqual("the string".f.Cyan, "\u{001B}[36mthe string\u{001B}[0m", "returns a cyan string")
-        XCTAssertEqual("the string".f.White, "\u{001B}[37mthe string\u{001B}[0m", "returns a white string")
+@Suite
+struct ColorizerTests {
+    @Test
+    func foregroundExtension() {
+        #expect("the string".f.Black == "\u{001B}[30mthe string\u{001B}[0m", "returns a black string")
+        #expect("the string".f.Black == "\u{001B}[30mthe string\u{001B}[0m", "returns a black string")
+        #expect("the string".f.Red == "\u{001B}[31mthe string\u{001B}[0m", "returns a red string")
+        #expect("the string".f.Green == "\u{001B}[32mthe string\u{001B}[0m", "returns a green string")
+        #expect("the string".f.Yellow == "\u{001B}[33mthe string\u{001B}[0m", "returns a yellow string")
+        #expect("the string".f.Blue == "\u{001B}[34mthe string\u{001B}[0m", "returns a blue string")
+        #expect("the string".f.Magenta == "\u{001B}[35mthe string\u{001B}[0m", "returns a magenta string")
+        #expect("the string".f.Cyan == "\u{001B}[36mthe string\u{001B}[0m", "returns a cyan string")
+        #expect("the string".f.White == "\u{001B}[37mthe string\u{001B}[0m", "returns a white string")
     }
-
-    func testBackgroundExtension() {
-        XCTAssertEqual("the string".b.Black, "\u{001B}[40mthe string\u{001B}[0m", "returns a black string")
-        XCTAssertEqual("the string".b.Red, "\u{001B}[41mthe string\u{001B}[0m", "returns a red string")
-        XCTAssertEqual("the string".b.Green, "\u{001B}[42mthe string\u{001B}[0m", "returns a green string")
-        XCTAssertEqual("the string".b.Yellow, "\u{001B}[43mthe string\u{001B}[0m", "returns a yellow string")
-        XCTAssertEqual("the string".b.Blue, "\u{001B}[44mthe string\u{001B}[0m", "returns a blue string")
-        XCTAssertEqual("the string".b.Magenta, "\u{001B}[45mthe string\u{001B}[0m", "returns a magenta string")
-        XCTAssertEqual("the string".b.Cyan, "\u{001B}[46mthe string\u{001B}[0m", "returns a cyan string")
-        XCTAssertEqual("the string".b.White, "\u{001B}[47mthe string\u{001B}[0m", "returns a white string")
+
+    @Test
+    func backgroundExtension() {
+        #expect("the string".b.Black == "\u{001B}[40mthe string\u{001B}[0m", "returns a black string")
+        #expect("the string".b.Red == "\u{001B}[41mthe string\u{001B}[0m", "returns a red string")
+        #expect("the string".b.Green == "\u{001B}[42mthe string\u{001B}[0m", "returns a green string")
+        #expect("the string".b.Yellow == "\u{001B}[43mthe string\u{001B}[0m", "returns a yellow string")
+        #expect("the string".b.Blue == "\u{001B}[44mthe string\u{001B}[0m", "returns a blue string")
+        #expect("the string".b.Magenta == "\u{001B}[45mthe string\u{001B}[0m", "returns a magenta string")
+        #expect("the string".b.Cyan == "\u{001B}[46mthe string\u{001B}[0m", "returns a cyan string")
+        #expect("the string".b.White == "\u{001B}[47mthe string\u{001B}[0m", "returns a white string")
     }
-
-    func testStyleExtension() {
-        XCTAssertEqual("the string".s.Bold, "\u{001B}[1mthe string\u{001B}[0m", "returns a bold string")
-        XCTAssertEqual("the string".s.Italic, "\u{001B}[3mthe string\u{001B}[0m", "returns an italic string")
-        XCTAssertEqual("the string".s.Underline, "\u{001B}[4mthe string\u{001B}[0m", "returns an underline string")
-        XCTAssertEqual("the string".s.Inverse, "\u{001B}[7mthe string\u{001B}[0m", "returns an inverse string")
-        XCTAssertEqual("the string".s.Strikethrough, "\u{001B}[9mthe string\u{001B}[0m", "returns a strikethrough string")
-        XCTAssertEqual("the string".s.BoldOff, "\u{001B}[22mthe string\u{001B}[0m", "returns a boldoff string")
-        XCTAssertEqual("the string".s.ItalicOff, "\u{001B}[23mthe string\u{001B}[0m", "returns an italic off string")
-        XCTAssertEqual("the string".s.UnderlineOff, "\u{001B}[24mthe string\u{001B}[0m", "returns an underline off string")
-        XCTAssertEqual("the string".s.InverseOff, "\u{001B}[27mthe string\u{001B}[0m", "returns an inverse off string")
-        XCTAssertEqual("the string".s.StrikethroughOff, "\u{001B}[29mthe string\u{001B}[0m", "returns a strikethrough off string")
-        XCTAssertEqual("the string".s.Reset, "\u{001B}[0mthe string\u{001B}[0m", "returns a reset style string")
+
+    @Test
+    func styleExtension() {
+        #expect("the string".s.Bold == "\u{001B}[1mthe string\u{001B}[0m", "returns a bold string")
+        #expect("the string".s.Italic == "\u{001B}[3mthe string\u{001B}[0m", "returns an italic string")
+        #expect("the string".s.Underline == "\u{001B}[4mthe string\u{001B}[0m", "returns an underline string")
+        #expect("the string".s.Inverse == "\u{001B}[7mthe string\u{001B}[0m", "returns an inverse string")
+        #expect("the string".s.Strikethrough == "\u{001B}[9mthe string\u{001B}[0m", "returns a strikethrough string")
+        #expect("the string".s.BoldOff == "\u{001B}[22mthe string\u{001B}[0m", "returns a boldoff string")
+        #expect("the string".s.ItalicOff == "\u{001B}[23mthe string\u{001B}[0m", "returns an italic off string")
+        #expect("the string".s.UnderlineOff == "\u{001B}[24mthe string\u{001B}[0m", "returns an underline off string")
+        #expect("the string".s.InverseOff == "\u{001B}[27mthe string\u{001B}[0m", "returns an inverse off string")
+        #expect("the string".s.StrikethroughOff == "\u{001B}[29mthe string\u{001B}[0m", "returns a strikethrough off string")
+        #expect("the string".s.Reset == "\u{001B}[0mthe string\u{001B}[0m", "returns a reset style string")
     }
 
-    func testMixingStylesExtension() {
-        XCTAssertEqual("the string".s.Bold.f.Red.b.White, "\u{001B}[47;31;1mthe string\u{001B}[0m", "returns a bold red with white foreground string ")
+    @Test
+    func mixingStylesExtension() {
+        #expect("the string".s.Bold.f.Red.b.White == "\u{001B}[47;31;1mthe string\u{001B}[0m", "returns a bold red with white foreground string ")
     }
 }