CommunitySuite: add tests for scala2 versions

scalafmt-tests-community/src/test/scala/org/scalafmt/community/CommunityScala2Suite.scala

@@ -0,0 +1,41 @@
+package org.scalafmt.community
+
+import scala.meta._
+
+abstract class CommunityScala2Suite extends CommunitySuite {
+
+  protected def getBuild(
+      ref: String,
+      dialect: sourcecode.Text[Dialect],
+      files: Int,
+  ): CommunityBuild = CommunityBuild(
+    "https://github.com/scala/scala.git",
+    ref,
+    "scala2",
+    Nil,
+    files,
+    dialect,
+  )
+
+}
+
+class CommunityScala2_11Suite extends CommunityScala2Suite {
+
+  override protected def builds =
+    Seq(getBuild("v2.11.12", dialects.Scala211, 1286))
+
+}
+
+class CommunityScala2_12Suite extends CommunityScala2Suite {
+
+  override protected def builds =
+    Seq(getBuild("v2.12.20", dialects.Scala212, 1277))
+
+}
+
+class CommunityScala2_13Suite extends CommunityScala2Suite {
+
+  override protected def builds =
+    Seq(getBuild("v2.13.14", dialects.Scala213, 1287))
+
+}