Update circe to version 0.8.0

Author: jonas

build.sbt

@@ -39,7 +39,7 @@ releaseProcess := {
 }
 
 val Versions = new {
-  val circe = "0.7.0"
+  val circe = "0.8.0"
   val config = "1.3.1"
   val discipline = "0.8"
   val scalaCheck = "0.13.5"
@@ -61,7 +61,7 @@ autoAPIMappings := true
 doctestTestFramework := DoctestTestFramework.ScalaTest
 doctestMarkdownEnabled := true
 doctestWithDependencies := false
-scalacOptions in (Compile,doc) := Seq(
+scalacOptions in (Compile, doc) := Seq(
   "-groups",
   "-implicits",
   "-doc-source-url", scmInfo.value.get.browseUrl + "/tree/master€{FILE_PATH}.scala",

src/test/scala/io.github.jonas.circe.config/CirceConfigLaws.scala

@@ -18,11 +18,18 @@ class CirceConfigLaws extends FlatSpec {
       .mapObject(_.filterKeys(_.nonEmpty).withJsons(normalize))
       .mapArray(_.map(normalize))
       .mapNumber(number => {
+        def numberToDouble = {
+          val double = number.toDouble
+          if (double.isWhole)
+            Some(Json.fromLong(double.toLong))
+          else
+            Json.fromDouble(double)
+        }
         // Map to the three principal types supported by Typesafe Config: Int, Long or Double
         val json =
           number.toInt.map(Json.fromInt) orElse
             number.toLong.map(Json.fromLong) orElse
-            Json.fromDouble(number.toDouble) getOrElse
+            numberToDouble getOrElse
             Json.fromInt(42)
 
         json.asNumber.get