used = for unit methods to support scala 3

Author: yadavan88

build.sbt

@@ -201,6 +201,7 @@ lazy val scala_akka_dependencies: Seq[ModuleID] = Seq(
 lazy val scala_test_junit4 = (project in file("scala-test-junit4"))
   .settings(
     name := "scala-test-junit4",
+    scalaVersion := scala3Version,
     libraryDependencies ++=
       Seq(
         "org.scalatestplus" %% "junit-4-13" % "3.2.17.0" % Test,

scala-test-junit4/src/test/scala-2/com/baeldung/scala/junit4/IntJunitTests.scala renamed to scala-test-junit4/src/test/scala/com/baeldung/scala/junit4/IntJunitTests.scala

@@ -6,12 +6,12 @@ import org.junit.Assert._
 class IntJunitTests {
 
   @Test
-  def testOneIsPositive {
+  def testOneIsPositive = {
     assertTrue(1 > 0)
   }
 
   @Test
-  def testMinusOneIsNegative {
+  def testMinusOneIsNegative = {
     assertTrue(-1 < 0)
   }
 }

scala-test-junit4/src/test/scala-2/com/baeldung/scala/junit4/STAssertionsTests.scala renamed to scala-test-junit4/src/test/scala/com/baeldung/scala/junit4/STAssertionsTests.scala

@@ -8,7 +8,7 @@ class STAssertionsTests extends AssertionsForJUnit {
   private final val myInt = 1
 
   @Test
-  def testAssertJUnitStyle() {
+  def testAssertJUnitStyle() = {
     assertEquals(myInt, 1)
     assertTrue(myInt > 0)
 
@@ -21,7 +21,7 @@ class STAssertionsTests extends AssertionsForJUnit {
   }
 
   @Test
-  def testAssertScalaTestStyle() {
+  def testAssertScalaTestStyle() = {
     assert(myInt == 1)
     assert(myInt.isValidInt)
     intercept[ArithmeticException] {

scala-test-junit4/src/test/scala-2/com/baeldung/scala/junit4/StringJunitTests.scala renamed to scala-test-junit4/src/test/scala/com/baeldung/scala/junit4/StringJunitTests.scala

@@ -6,7 +6,7 @@ import org.junit.Assert._
 class StringJunitTests {
 
   @Test
-  def testEmptyStringLengthIsZero {
+  def testEmptyStringLengthIsZero = {
     assertEquals("".length, 0)
   }
 }