Merge pull request #686 from mikejcurry/oneand-show-test

Add test for Show[OneAnd]
typelevel · Nov 21, 2015 · 482bc2e · 482bc2e
2 parents b07df91 + 0a2ac48
commit 482bc2e
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/tests/src/test/scala/cats/tests/OneAndTests.scala b/tests/src/test/scala/cats/tests/OneAndTests.scala
@@ -47,6 +47,20 @@ class OneAndTests extends CatsSuite {
   checkAll("NonEmptyList[Int]", ComonadTests[NonEmptyList].comonad[Int, Int, Int])
   checkAll("Comonad[NonEmptyList[A]]", SerializableTests.serializable(Comonad[NonEmptyList]))
 
+  test("Show is not empty and is formatted as expected") {
+    forAll { (nel: NonEmptyList[Int]) =>
+      nel.show.nonEmpty should === (true)
+      nel.show.startsWith("OneAnd(") should === (true)
+      nel.show should === (implicitly[Show[NonEmptyList[Int]]].show(nel))
+      nel.show.contains(nel.head.show) should === (true)
+    }
+  }
+
+  test("Show is formatted correctly") {
+    val oneAnd = NonEmptyList("Test", Nil)
+    oneAnd.show should === ("OneAnd(Test, List())")
+  }
+
   test("Creating OneAnd + unwrap is identity") {
     forAll { (i: Int, tail: List[Int]) =>
       val list = i :: tail