upgrade to ScalaTest 3.1

and avoid deprecated stuff, to pave the way for moving to 3.2

Author: SethTisue

Diff for: build.sbt

@@ -13,15 +13,7 @@ ThisBuild / homepage := Some(url("https://github.com/oleg-py/better-monadic-for")
 ThisBuild / scalaVersion := Option(System.getenv("SCALA_VERSION")).filter(_.nonEmpty).getOrElse(scala213)
 
 val testSettings = Seq(
-  libraryDependencies ++= Seq(
-    CrossVersion.partialVersion(scalaVersion.value) match {
-      case Some((2, 13)) =>
-        // bincompatible enough :)
-        "org.scalatest" % "scalatest_2.13.0-RC3" % "3.1.0-SNAP12" % Test
-      case _ => "org.scalatest" %% "scalatest" % "3.1.0-SNAP12" % Test
-    }
-   
-  ),
+  libraryDependencies += "org.scalatest" %% "scalatest" % "3.1.2" % Test,
   Test / scalacOptions ++= {
     val jar = (betterMonadicFor / Compile / packageBin).value
     Seq(s"-Xplugin:${jar.getAbsolutePath}", s"-Jdummy=${jar.lastModified}") // ensures recompile

Diff for: cats-tests/src/test/scala/com/olegpy/bm4/CatsSyntaxTest.scala

@@ -1,10 +1,10 @@
 package com.olegpy.bm4
 
 import cats.Monad
-import org.scalatest.FreeSpec
+import org.scalatest.freespec.AnyFreeSpec
 import cats.implicits._
 
-class CatsSyntaxTest extends FreeSpec {
+class CatsSyntaxTest extends AnyFreeSpec {
   implicit val mcCatsInstance: cats.FlatMap[MapCheck] = new cats.FlatMap[MapCheck] {
     def flatMap[A, B](fa: MapCheck[A])(f: A => MapCheck[B]): MapCheck[B] = {
       fa.flatMap(f)

Diff for: pcplod-tests/src/test/scala/com/olegpy/bm4/PresentationCompiler.scala

@@ -1,9 +1,9 @@
 package com.olegpy.bm4
 
 import org.ensime.pcplod._
-import org.scalatest.FreeSpec
+import org.scalatest.freespec.AnyFreeSpec
 
-class PresentationCompiler extends FreeSpec {
+class PresentationCompiler extends AnyFreeSpec {
   "PC should have no errors" in {
     withMrPlod("Arrows.scala") { pc =>
       assert(pc.messages.isEmpty)

Diff for: plugin-tests/src/test/scala/com/olegpy/bm4/TestFor.scala

@@ -3,7 +3,7 @@ package com.olegpy.bm4
 import scala.concurrent.Future
 import scala.concurrent.duration.Duration
 
-import org.scalatest.{FreeSpec, FunSuite}
+import org.scalatest.freespec.AnyFreeSpec
 
 /** Mo is a lazy monad without `withFilter` */
 sealed trait Mo[A] {
@@ -26,7 +26,7 @@ object Mo {
   val unit: Mo[Unit] = Mo(())
 }
 
-class TestFor extends FreeSpec {
+class TestFor extends AnyFreeSpec {
 
   "Plugin allows" - {
     "destructuring for monads without withFilter" in {

Diff for: plugin-tests/src/test/scala/com/olegpy/bm4/TestImplicitPatterns.scala

@@ -1,14 +1,14 @@
 package com.olegpy.bm4
 
-import org.scalatest.FreeSpec
+import org.scalatest.freespec.AnyFreeSpec
 
 object CTTest {
   def foo[A]: Mo[A] = for {
     implicit0(a: A) <- Mo.delay(null.asInstanceOf[A])
   } yield implicitly[A]
 }
 
-class TestImplicitPatterns extends FreeSpec {
+class TestImplicitPatterns extends AnyFreeSpec {
   case class ImplicitTest(id: String)
   def typed[A](a: A) = ()
   case class ImplicitTest2(id: String)

Diff for: plugin-tests/src/test/scala/com/olegpy/bm4/TestNoMap.scala

@@ -1,6 +1,6 @@
 package com.olegpy.bm4
 
-import org.scalatest.FreeSpec
+import org.scalatest.freespec.AnyFreeSpec
 
 case class MapCalled() extends Exception
 
@@ -9,7 +9,7 @@ class MapCheck[+A](a: A) {
   def flatMap[B](f: A => MapCheck[B]): MapCheck[B] = f(a)
 }
 
-class TestNoMap extends FreeSpec {
+class TestNoMap extends AnyFreeSpec {
   "emits no map(b => b) in for-comprehension" in {
     for {
       _ <- new MapCheck(42)

Diff for: plugin-tests/src/test/scala/com/olegpy/bm4/TestNoTuples.scala

@@ -1,10 +1,9 @@
 package com.olegpy.bm4
 
 import com.olegpy.bm4.TestNoTuples.TupleChecker
-import org.scalatest.FreeSpec
+import org.scalatest.freespec.AnyFreeSpec
 
-
-class TestNoTuples extends FreeSpec {
+class TestNoTuples extends AnyFreeSpec {
   "Plugin removes tuples produced in binding" - {
     "for single definition" in {
       for {
@@ -147,4 +146,4 @@ object TestNoTuples {
       f(a)
     }
   }
-}
+}

Diff for: scalaz-tests/src/test/scala/com/olegpy/bm4/ScalazSyntaxTest.scala

@@ -1,9 +1,9 @@
 package com.olegpy.bm4
 
-import org.scalatest.FreeSpec
+import org.scalatest.freespec.AnyFreeSpec
 import scalaz._, Scalaz._
 
-class ScalazSyntaxTest extends FreeSpec {
+class ScalazSyntaxTest extends AnyFreeSpec {
   implicit val scalazInstance: Bind[MapCheck] = new Bind[MapCheck] {
     def bind[A, B](fa: MapCheck[A])(f: A => MapCheck[B]): MapCheck[B] = fa.flatMap(f)
 
@@ -19,4 +19,4 @@ class ScalazSyntaxTest extends FreeSpec {
 
     sillyTest(new MapCheck(11), new MapCheck(42))
   }
-}
+}