From 3c71917af17c2164f15dd26f278d0b459a639a1c Mon Sep 17 00:00:00 2001
From: Lukas Rytz <lukas.rytz@gmail.com>
Date: Wed, 12 Apr 2023 11:27:47 +0200
Subject: [PATCH] test

---
 .../test/scala/test/scala/collection/ArraySeqTest.scala    | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/compat/src/test/scala/test/scala/collection/ArraySeqTest.scala b/compat/src/test/scala/test/scala/collection/ArraySeqTest.scala
index f2d8204a..c2bede79 100644
--- a/compat/src/test/scala/test/scala/collection/ArraySeqTest.scala
+++ b/compat/src/test/scala/test/scala/collection/ArraySeqTest.scala
@@ -72,4 +72,11 @@ class ArraySeqTest {
     Assert.assertEquals(ArraySeq[T](), array.slice(1, 1))
     Assert.assertEquals(ArraySeq[T](), array.slice(2, 1))
   }
+
+  @Test def ArraySeqIndexedSeqOptimized(): Unit = {
+    val x = ArraySeq(1, 2)
+    val y = ArraySeq(3, 4)
+    val z: ArraySeq[Int] = x ++ y
+    assert(z.toList == List(1,2,3,4))
+  }
 }