feat: introduce cats-effect and io

src/test/wacc/examples.scala

@@ -7,6 +7,7 @@ import java.io.File
 import sys.process._
 import java.io.PrintStream
 import scala.io.Source
+import cats.effect.unsafe.implicits.global
 
 class ParallelExamplesSpec extends AnyFlatSpec with BeforeAndAfterAll {
   val files =
@@ -29,7 +30,7 @@ class ParallelExamplesSpec extends AnyFlatSpec with BeforeAndAfterAll {
     given stdout: PrintStream = PrintStream(File(baseFilename + ".out"))
 
     s"$filename" should "be compiled with correct result" in {
-      val result = compile(filename)
+      val result = compile(filename).unsafeRunSync()
       assert(expectedResult.contains(result))
     }