Test Show instance for Duration (#2215)

typelevel · Mar 26, 2018 · 0e24894 · 0e24894
1 parent f038f0c
commit 0e24894
Showing 1 changed file with 21 additions and 0 deletions.
diff --git a/tests/src/test/scala/cats/tests/DurationSuite.scala b/tests/src/test/scala/cats/tests/DurationSuite.scala
@@ -0,0 +1,21 @@
+package cats
+package tests
+
+import cats.instances.duration._
+import cats.laws.discipline.SerializableTests
+
+import scala.concurrent.duration.{Duration, DurationInt}
+
+class DurationSuite extends CatsSuite {
+  checkAll("Show[Duration]", SerializableTests.serializable(Show[Duration]))
+
+  test("show works for FiniteDuration"){
+    Show[Duration].show(23.minutes) should ===("23 minutes")
+  }
+
+  test("show works for non-finite durations"){
+    Show[Duration].show(Duration.Inf) should ===("Duration.Inf")
+    Show[Duration].show(Duration.MinusInf) should ===("Duration.MinusInf")
+    Show[Duration].show(Duration.Undefined) should ===("Duration.Undefined")
+  }
+}