Update cross test

sbt/src/sbt-test/actions/cross/build.sbt

@@ -1,20 +1,24 @@
-scalaVersion in ThisBuild := "2.7.7"
+ThisBuild / scalaVersion := "2.11.12"
 
-scalaVersion := "2.9.1"
+lazy val root = (project in file("."))
+  .settings(
+    scalaVersion := "2.12.11",
 
-scalaVersion in update := {
-  scalaVersion.value match {
-    case "2.9.1" => "2.9.0-1"
-    case "2.8.2" => "2.8.1"
-    case x => x
-  }
-}
+    update / scalaVersion := {
+      scalaVersion.value match {
+        case "2.12.11" => "2.12.10"
+        case "2.11.12" => "2.11.11"
+        case x         => x
+      }
+    },
 
-InputKey[Unit]("check") := {
-  val args = Def.spaceDelimited().parsed
-  def check(label: String, i: Int, actual: String) =
-    assert(args(i) == actual, s"Expected $label='${args(i)}' got '$actual'")
-  check("scalaVersion in ThisBuild", 0, scalaVersion in ThisBuild value)
-  check("scalaVersion", 1, scalaVersion.value)
-  check("scalaVersion in update", 2, scalaVersion in update value)
-}
+    InputKey[Unit]("check") := {
+      val args = Def.spaceDelimited().parsed
+      def checkV(label: String, i: Int, actual: String) =
+        assert(args(i) == actual, s"Expected $label='${args(i)}' got '$actual'")
+
+      checkV("ThisBuild / scalaVersion", 0, (ThisBuild / scalaVersion).value)
+      checkV("scalaVersion", 1, scalaVersion.value)
+      checkV("update / scalaVersion", 2, (update / scalaVersion).value)
+    }
+  )

sbt/src/sbt-test/actions/cross/test

@@ -1,8 +1,11 @@
-> check 2.7.7 2.9.1 2.9.0-1
-> ++ 2.8.2!
-> check 2.8.2 2.8.2 2.8.1
-> ++ 2.10.4!
+> check 2.11.12 2.12.11 2.12.10
+
+> ++ 2.11.12!
+> check 2.11.12 2.11.12 2.11.11
+
+> ++ 2.13.1!
 > set resolvers ++= Nil
-> check 2.10.4 2.10.4 2.10.4
+> check 2.13.1 2.13.1 2.13.1
+
 > session clear-all
-> check 2.7.7 2.9.1 2.9.0-1
+> check 2.11.12 2.12.11 2.12.10