Edit

Coming from ScalaTest

Add the following settings to run ScalaTest and JUnit suites with the same testing framework as MUnit.

// build.sbt
testFrameworks := List(
  new TestFramework("munit.Framework"),
  new TestFramework("com.geirsson.junit.PantsFramework")
)

These settings configure all JUnit and ScalaTest suites to run with the same testing interface as MUnit. This means that you get the same pretty-printing of test reports for JUnit, ScalaTest and MUnit.

Next, you may want to start migrating your test suites one by one. If you only use basic ScalaTest features, you should be able to replace usage of org.scalatest.FunSuite with minimal changes like below.

- import org.scalatest.munit.AnyFunSuite
- import org.scalatest.FunSuite
+ import munit.FunSuite

- class MySuite extends FunSuite with BeforeAll with AfterAll {
+ class MySuite extends FunSuite {
  test("name") {
    // unchanged
  }

- ignore("ignored") {
+ test("ignored".ignore) {
    // unchanged
  }