First working version.

Tests/SwiftTailwindTests/Tests.swift

@@ -0,0 +1,25 @@
+import Testing
+
+@testable import SwiftTailwindExample
+
+@Suite("SwiftTailwindExample")
+struct SwiftTailwindExampleTests {
+  @Test
+  func example() throws {
+    let example = Example()
+    let generatedCSS = try example.getGeneratedCSS()
+    #expect(generatedCSS != nil)
+    #expect(
+      generatedCSS?.contains("text-2xl") == true,
+      "Class used in Swift code is generated."
+    )
+    #expect(
+      generatedCSS?.contains("text-\\[\\#f05138\\]") == true,
+      "Arbitary value class used in Test.html is generated."
+    )
+    #expect(
+      generatedCSS?.contains("bg-blue-500") == false,
+      "Class not used is not generated."
+    )
+  }
+}