check the empty case in unit tests

typelevel · Nov 2, 2018 · 1cd917e · 1cd917e
1 parent b823aab
commit 1cd917e
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/tests/src/test/scala/cats/tests/NonEmptyMapSuite.scala b/tests/src/test/scala/cats/tests/NonEmptyMapSuite.scala
@@ -214,6 +214,7 @@ class NonEmptyMapSuite extends CatsSuite {
     forAll { (nem: NonEmptyMap[String, Int], i: (String, Int)) =>
       nem.add(i) should ===(nem.add(i).updateWith(i._1, identity))
       nem.add(i).lookup(i._1).map(_ + 1) should ===(nem.add(i).updateWith(i._1, _ + 1).lookup(i._1))
+      nem.lookup(i._1) should ===(nem.updateWith(i._1, _ => i._2).lookup(i._1))
     }
   }
 }