diff --git a/tests/src/actionContainers/NodeJsActionContainerTests.scala b/tests/src/actionContainers/NodeJsActionContainerTests.scala
index 2f289a2afa1ef80429233749d31f4dec07f2d3d2..2861031bea77816c6c7ec24144b37e406739897d 100644
--- a/tests/src/actionContainers/NodeJsActionContainerTests.scala
+++ b/tests/src/actionContainers/NodeJsActionContainerTests.scala
@@ -55,7 +55,7 @@ class NodeJsActionContainerTests extends FlatSpec with Matchers {
 
             val argss = List(
                 JsObject("greeting" -> JsString("hi!")),
-                JsObject("numbers" -> JsArray(Vector(JsNumber(42), JsNumber(1)))))
+                JsObject("numbers" -> JsArray(JsNumber(42), JsNumber(1))))
 
             for (args <- argss) {
                 val (runCode, out) = c.run(runPayload(args))
diff --git a/tests/src/actionContainers/SwiftActionContainerTests.scala b/tests/src/actionContainers/SwiftActionContainerTests.scala
index bc30fe1dc4765c17d051f311525985082445e983..e86be1833de94ce37ab0ccd06b8074c9dfb016c8 100644
--- a/tests/src/actionContainers/SwiftActionContainerTests.scala
+++ b/tests/src/actionContainers/SwiftActionContainerTests.scala
@@ -56,7 +56,7 @@ class SwiftActionContainerTests extends FlatSpec
 
             val argss = List(
                 JsObject("greeting" -> JsString("hi!")),
-                JsObject("numbers" -> JsArray(Vector(JsNumber(42), JsNumber(1)))))
+                JsObject("numbers" -> JsArray(JsNumber(42), JsNumber(1))))
 
             for (args <- argss) {
                 val (runCode, out) = c.run(runPayload(args))
diff --git a/tests/src/services/PingTests.scala b/tests/src/services/PingTests.scala
index 5dcf352bc1f619e17f6f3a1c51519bc81687f3df..c62c69106bd41613e0836e728d2b8e2a4f6fc278 100644
--- a/tests/src/services/PingTests.scala
+++ b/tests/src/services/PingTests.scala
@@ -37,8 +37,8 @@ import common.WhiskProperties
  */
 object PingTests {
     val bin: File = WhiskProperties.getFileRelativeToWhiskHome("tools/health")
-      
-    def isAlive(name: String, whiskPropertyFile: String) : (String,String) = {
+
+    def isAlive(name: String, whiskPropertyFile: String): (String, String) = {
         val p = TestUtils.runCmd(TestUtils.SUCCESS_EXIT, bin, WhiskProperties.python, "isAlive", "-d", whiskPropertyFile, "--wait", "30", name)
         (p.fst, p.snd)
     }
@@ -52,7 +52,7 @@ class PingTests {
      * Check that the docker REST interface at endpoint is up. envVar is the
      * environment variable from which we obtain.
      */
-    def pingDocker(envVar: String, endpoint: String) : Unit = {
+    def pingDocker(envVar: String, endpoint: String): Unit = {
         assertTrue(envVar + " not set", endpoint != null)
         assertTrue(envVar + " not set", endpoint.length() > 0)
 
@@ -66,47 +66,47 @@ class PingTests {
      * Check that the main docker endpoint is functioning.
      */
     @Test
-    def pingMainDocker() : Unit = {
-        pingDocker("main.docker.endpoint", WhiskProperties.getMainDockerEndpoint());
+    def pingMainDocker(): Unit = {
+        pingDocker("main.docker.endpoint", WhiskProperties.getMainDockerEndpoint())
     }
 
     /**
      * Check the kafka docker endpoint is functioning.
      */
     @Test
-    def pingKafkaDocker() : Unit = {
-        pingDocker("kafka.docker.endpoint", WhiskProperties.getKafkaDockerEndpoint());
+    def pingKafkaDocker(): Unit = {
+        pingDocker("kafka.docker.endpoint", WhiskProperties.getKafkaDockerEndpoint())
     }
 
     /**
      * Check that the zookeeper endpoint is up and running
      */
     @Test
-    def pingZookeeper() : Unit = {
-        PingTests.isAlive("zookeeper", WhiskProperties.getFileRelativeToWhiskHome(".").getAbsolutePath());
+    def pingZookeeper(): Unit = {
+        PingTests.isAlive("zookeeper", WhiskProperties.getFileRelativeToWhiskHome(".").getAbsolutePath())
     }
 
     /**
      * Check that the kafka endpoint is up and running
      */
     @Test
-    def pingKafka() : Unit = {
-        PingTests.isAlive("kafka", WhiskProperties.getFileRelativeToWhiskHome(".").getAbsolutePath());
+    def pingKafka(): Unit = {
+        PingTests.isAlive("kafka", WhiskProperties.getFileRelativeToWhiskHome(".").getAbsolutePath())
     }
 
     /**
      * Check that the activator endpoint is up and running
      */
     @Test
-    def pingActivator() : Unit = {
-        PingTests.isAlive("activator", WhiskProperties.getFileRelativeToWhiskHome(".").getAbsolutePath());
+    def pingActivator(): Unit = {
+        PingTests.isAlive("activator", WhiskProperties.getFileRelativeToWhiskHome(".").getAbsolutePath())
     }
 
     /**
      * Check that the invoker endpoints are up and running
      */
     @Test
-    def pingInvoker() : Unit = {
+    def pingInvoker(): Unit = {
         for (i <- 0 until WhiskProperties.numberOfInvokers()) {
             PingTests.isAlive("invoker" + i, WhiskProperties.getFileRelativeToWhiskHome(".").getAbsolutePath())
         }
@@ -116,15 +116,15 @@ class PingTests {
      * Check that the loadbalancer endpoint is up and running
      */
     @Test
-    def pingLoadBalancer() : Unit = {
-        PingTests.isAlive("loadbalancer", WhiskProperties.getFileRelativeToWhiskHome(".").getAbsolutePath());
+    def pingLoadBalancer(): Unit = {
+        PingTests.isAlive("loadbalancer", WhiskProperties.getFileRelativeToWhiskHome(".").getAbsolutePath())
     }
 
     /**
      * Check that the controller endpoint is up and running
      */
     @Test
-    def pingController() : Unit = {
-        PingTests.isAlive("controller", WhiskProperties.getFileRelativeToWhiskHome(".").getAbsolutePath());
+    def pingController(): Unit = {
+        PingTests.isAlive("controller", WhiskProperties.getFileRelativeToWhiskHome(".").getAbsolutePath())
     }
 }
diff --git a/tests/src/whisk/core/entity/test/SchemaTests.scala b/tests/src/whisk/core/entity/test/SchemaTests.scala
index 7d6e797abedd291844025ca1d3e969d94695acc3..5833ff80b1c540204c018066dc71880b18c87bfe 100644
--- a/tests/src/whisk/core/entity/test/SchemaTests.scala
+++ b/tests/src/whisk/core/entity/test/SchemaTests.scala
@@ -243,10 +243,10 @@ class SchemaTests extends FlatSpec with BeforeAndAfter {
     behavior of "Parameter"
     it should "properly deserialize and reserialize JSON" in {
         val json = Seq[JsValue](
-            JsArray(Vector(JsObject("key" -> "k".toJson, "value" -> "v".toJson))),
-            JsArray(Vector(JsObject("key" -> "k".toJson, "value" -> "v".toJson, "foo" -> "bar".toJson))),
-            JsArray(Vector(JsObject("key" -> "k".toJson, "value" -> 3.toJson))),
-            JsArray(Vector(JsObject("key" -> "k".toJson, "value" -> Vector(false, true).toJson))))
+            JsArray(JsObject("key" -> "k".toJson, "value" -> "v".toJson)),
+            JsArray(JsObject("key" -> "k".toJson, "value" -> "v".toJson, "foo" -> "bar".toJson)),
+            JsArray(JsObject("key" -> "k".toJson, "value" -> 3.toJson)),
+            JsArray(JsObject("key" -> "k".toJson, "value" -> Vector(false, true).toJson)))
         val params = json.map { p => Parameters.serdes.read(p) }
         assert(params(0) == Parameters("k", "v"))
         assert(params(1) == Parameters("k", "v"))
@@ -301,10 +301,10 @@ class SchemaTests extends FlatSpec with BeforeAndAfter {
     }
 
     it should "serialize to json" in {
-        assert(Parameters("k", null).toString == JsArray(Vector(JsObject("key" -> "k".toJson, "value" -> JsNull))).compactPrint)
-        assert(Parameters("k", "").toString == JsArray(Vector(JsObject("key" -> "k".toJson, "value" -> "".toJson))).compactPrint)
-        assert(Parameters("k", " ").toString == JsArray(Vector(JsObject("key" -> "k".toJson, "value" -> "".toJson))).compactPrint)
-        assert(Parameters("k", "v").toString == JsArray(Vector(JsObject("key" -> "k".toJson, "value" -> "v".toJson))).compactPrint)
+        assert(Parameters("k", null).toString == JsArray(JsObject("key" -> "k".toJson, "value" -> JsNull)).compactPrint)
+        assert(Parameters("k", "").toString == JsArray(JsObject("key" -> "k".toJson, "value" -> "".toJson)).compactPrint)
+        assert(Parameters("k", " ").toString == JsArray(JsObject("key" -> "k".toJson, "value" -> "".toJson)).compactPrint)
+        assert(Parameters("k", "v").toString == JsArray(JsObject("key" -> "k".toJson, "value" -> "v".toJson)).compactPrint)
     }
 
     behavior of "ActionLimits"